* [Qemu-devel] [PATCH 01/16] vl: Move init_timer_alarm() earlier
2012-09-18 20:00 [Qemu-devel] [PATCH 00/16 v4] Add an IPMI device to qemu minyard
@ 2012-09-18 20:00 ` minyard
2012-09-18 20:00 ` [Qemu-devel] [PATCH 02/16] qemu-char: Allocate CharDriverState in qemu_chr_new_from_opts minyard
` (15 subsequent siblings)
16 siblings, 0 replies; 20+ messages in thread
From: minyard @ 2012-09-18 20:00 UTC (permalink / raw)
To: qemu-devel; +Cc: Corey Minyard
From: Corey Minyard <cminyard@mvista.com>
The timers may be used in initialization, so move them earlier so they
are ready. A reconnect options will be added to qemu-char, and it uses
a timer, but the timer alarm wasn't initialized yet.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
---
vl.c | 10 +++++-----
1 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/vl.c b/vl.c
index 7c577fa..1dcab37 100644
--- a/vl.c
+++ b/vl.c
@@ -3308,6 +3308,11 @@ int main(int argc, char **argv, char **envp)
qemu_set_version(machine->hw_version);
}
+ if (init_timer_alarm() < 0) {
+ fprintf(stderr, "could not initialize alarm timer\n");
+ exit(1);
+ }
+
/* Init CPU def lists, based on config
* - Must be called after all the qemu_read_config_file() calls
* - Must be called before list_cpus()
@@ -3485,11 +3490,6 @@ int main(int argc, char **argv, char **envp)
os_set_line_buffering();
- if (init_timer_alarm() < 0) {
- fprintf(stderr, "could not initialize alarm timer\n");
- exit(1);
- }
-
#ifdef CONFIG_SPICE
/* spice needs the timers to be initialized by this point */
qemu_spice_init();
--
1.7.4.1
^ permalink raw reply related [flat|nested] 20+ messages in thread* [Qemu-devel] [PATCH 02/16] qemu-char: Allocate CharDriverState in qemu_chr_new_from_opts
2012-09-18 20:00 [Qemu-devel] [PATCH 00/16 v4] Add an IPMI device to qemu minyard
2012-09-18 20:00 ` [Qemu-devel] [PATCH 01/16] vl: Move init_timer_alarm() earlier minyard
@ 2012-09-18 20:00 ` minyard
2012-09-18 20:00 ` [Qemu-devel] [PATCH 03/16] qemu-char: Allow a chardev to reconnect if disconnected minyard
` (14 subsequent siblings)
16 siblings, 0 replies; 20+ messages in thread
From: minyard @ 2012-09-18 20:00 UTC (permalink / raw)
To: qemu-devel; +Cc: Corey Minyard
From: Corey Minyard <cminyard@mvista.com>
This allocates the CharDriverState structure in a more logical place.
It reduces code size and it allows a coming option to automatically
attempt to reconnect a chardev if the connection fails.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
---
console.c | 6 +---
console.h | 2 +-
hw/baum.c | 6 +--
hw/baum.h | 2 +-
hw/msmouse.c | 5 +--
hw/msmouse.h | 2 +-
qemu-char.c | 93 +++++++++++++++++++++-------------------------------
spice-qemu-char.c | 4 +--
ui/qemu-spice.h | 2 +-
9 files changed, 47 insertions(+), 75 deletions(-)
diff --git a/console.c b/console.c
index c1ed5e0..d6f7c5e 100644
--- a/console.c
+++ b/console.c
@@ -1537,15 +1537,12 @@ static void text_console_do_init(CharDriverState *chr, DisplayState *ds)
chr->init(chr);
}
-CharDriverState *text_console_init(QemuOpts *opts)
+CharDriverState *text_console_init(CharDriverState *chr, QemuOpts *opts)
{
- CharDriverState *chr;
TextConsole *s;
unsigned width;
unsigned height;
- chr = g_malloc0(sizeof(CharDriverState));
-
width = qemu_opt_get_number(opts, "width", 0);
if (width == 0)
width = qemu_opt_get_number(opts, "cols", 0) * FONT_WIDTH;
@@ -1561,7 +1558,6 @@ CharDriverState *text_console_init(QemuOpts *opts)
}
if (!s) {
- g_free(chr);
return NULL;
}
diff --git a/console.h b/console.h
index f990684..9843edd 100644
--- a/console.h
+++ b/console.h
@@ -361,7 +361,7 @@ void vga_hw_text_update(console_ch_t *chardata);
int is_graphic_console(void);
int is_fixedsize_console(void);
-CharDriverState *text_console_init(QemuOpts *opts);
+CharDriverState *text_console_init(CharDriverState *chr, QemuOpts *opts);
void text_consoles_set_display(DisplayState *ds);
void console_select(unsigned int index);
void console_color_init(DisplayState *ds);
diff --git a/hw/baum.c b/hw/baum.c
index 3e94f84..b5df8a6 100644
--- a/hw/baum.c
+++ b/hw/baum.c
@@ -562,10 +562,9 @@ static void baum_close(struct CharDriverState *chr)
g_free(baum);
}
-CharDriverState *chr_baum_init(QemuOpts *opts)
+CharDriverState *chr_baum_init(CharDriverState *chr, QemuOpts *opts)
{
BaumDriverState *baum;
- CharDriverState *chr;
brlapi_handle_t *handle;
#ifdef CONFIG_SDL
SDL_SysWMinfo info;
@@ -573,7 +572,7 @@ CharDriverState *chr_baum_init(QemuOpts *opts)
int tty;
baum = g_malloc0(sizeof(BaumDriverState));
- baum->chr = chr = g_malloc0(sizeof(CharDriverState));
+ baum->chr = chr;
chr->opaque = baum;
chr->chr_write = baum_write;
@@ -621,7 +620,6 @@ fail:
brlapi__closeConnection(handle);
fail_handle:
g_free(handle);
- g_free(chr);
g_free(baum);
return NULL;
}
diff --git a/hw/baum.h b/hw/baum.h
index 8af710f..599d48b 100644
--- a/hw/baum.h
+++ b/hw/baum.h
@@ -23,4 +23,4 @@
*/
/* char device */
-CharDriverState *chr_baum_init(QemuOpts *opts);
+CharDriverState *chr_baum_init(CharDriverState *chr, QemuOpts *opts);
diff --git a/hw/msmouse.c b/hw/msmouse.c
index 9c492a4..8a8a1d3 100644
--- a/hw/msmouse.c
+++ b/hw/msmouse.c
@@ -64,11 +64,8 @@ static void msmouse_chr_close (struct CharDriverState *chr)
g_free (chr);
}
-CharDriverState *qemu_chr_open_msmouse(QemuOpts *opts)
+CharDriverState *qemu_chr_open_msmouse(CharDriverState *chr, QemuOpts *opts)
{
- CharDriverState *chr;
-
- chr = g_malloc0(sizeof(CharDriverState));
chr->chr_write = msmouse_chr_write;
chr->chr_close = msmouse_chr_close;
diff --git a/hw/msmouse.h b/hw/msmouse.h
index 456cb21..925af1a 100644
--- a/hw/msmouse.h
+++ b/hw/msmouse.h
@@ -1,2 +1,2 @@
/* msmouse.c */
-CharDriverState *qemu_chr_open_msmouse(QemuOpts *opts);
+CharDriverState *qemu_chr_open_msmouse(CharDriverState *chr, QemuOpts *opts);
diff --git a/qemu-char.c b/qemu-char.c
index 398baf1..1409d67 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -221,11 +221,8 @@ static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
return len;
}
-static CharDriverState *qemu_chr_open_null(QemuOpts *opts)
+static CharDriverState *qemu_chr_open_null(CharDriverState *chr, QemuOpts *opts)
{
- CharDriverState *chr;
-
- chr = g_malloc0(sizeof(CharDriverState));
chr->chr_write = null_chr_write;
return chr;
}
@@ -618,12 +615,11 @@ static void fd_chr_close(struct CharDriverState *chr)
}
/* open a character device to a unix fd */
-static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
+static CharDriverState *qemu_chr_open_fd(CharDriverState *chr,
+ int fd_in, int fd_out)
{
- CharDriverState *chr;
FDCharDriver *s;
- chr = g_malloc0(sizeof(CharDriverState));
s = g_malloc0(sizeof(FDCharDriver));
s->fd_in = fd_in;
s->fd_out = fd_out;
@@ -637,7 +633,8 @@ static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
return chr;
}
-static CharDriverState *qemu_chr_open_file_out(QemuOpts *opts)
+static CharDriverState *qemu_chr_open_file_out(CharDriverState *chr,
+ QemuOpts *opts)
{
int fd_out;
@@ -646,10 +643,10 @@ static CharDriverState *qemu_chr_open_file_out(QemuOpts *opts)
if (fd_out < 0) {
return NULL;
}
- return qemu_chr_open_fd(-1, fd_out);
+ return qemu_chr_open_fd(chr, -1, fd_out);
}
-static CharDriverState *qemu_chr_open_pipe(QemuOpts *opts)
+static CharDriverState *qemu_chr_open_pipe(CharDriverState *chr, QemuOpts *opts)
{
int fd_in, fd_out;
char filename_in[256], filename_out[256];
@@ -674,7 +671,7 @@ static CharDriverState *qemu_chr_open_pipe(QemuOpts *opts)
return NULL;
}
}
- return qemu_chr_open_fd(fd_in, fd_out);
+ return qemu_chr_open_fd(chr, fd_in, fd_out);
}
@@ -765,10 +762,9 @@ static void qemu_chr_close_stdio(struct CharDriverState *chr)
fd_chr_close(chr);
}
-static CharDriverState *qemu_chr_open_stdio(QemuOpts *opts)
+static CharDriverState *qemu_chr_open_stdio(CharDriverState *chr,
+ QemuOpts *opts)
{
- CharDriverState *chr;
-
if (stdio_nb_clients >= STDIO_MAX_CLIENTS) {
return NULL;
}
@@ -779,7 +775,7 @@ static CharDriverState *qemu_chr_open_stdio(QemuOpts *opts)
atexit(term_exit);
}
- chr = qemu_chr_open_fd(0, 1);
+ qemu_chr_open_fd(chr, 0, 1);
chr->chr_close = qemu_chr_close_stdio;
chr->chr_set_echo = qemu_chr_set_echo_stdio;
qemu_set_fd_handler2(0, stdio_read_poll, stdio_read, NULL, chr);
@@ -975,9 +971,8 @@ static void pty_chr_close(struct CharDriverState *chr)
qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
}
-static CharDriverState *qemu_chr_open_pty(QemuOpts *opts)
+static CharDriverState *qemu_chr_open_pty(CharDriverState *chr, QemuOpts *opts)
{
- CharDriverState *chr;
PtyCharDriver *s;
struct termios tty;
int master_fd, slave_fd, len;
@@ -999,8 +994,6 @@ static CharDriverState *qemu_chr_open_pty(QemuOpts *opts)
tcsetattr(slave_fd, TCSAFLUSH, &tty);
close(slave_fd);
- chr = g_malloc0(sizeof(CharDriverState));
-
len = strlen(q_ptsname(master_fd)) + 5;
chr->filename = g_malloc(len);
snprintf(chr->filename, len, "pty:%s", q_ptsname(master_fd));
@@ -1217,10 +1210,9 @@ static void qemu_chr_close_tty(CharDriverState *chr)
}
}
-static CharDriverState *qemu_chr_open_tty(QemuOpts *opts)
+static CharDriverState *qemu_chr_open_tty(CharDriverState *chr, QemuOpts *opts)
{
const char *filename = qemu_opt_get(opts, "path");
- CharDriverState *chr;
int fd;
TFR(fd = qemu_open(filename, O_RDWR | O_NONBLOCK));
@@ -1228,7 +1220,7 @@ static CharDriverState *qemu_chr_open_tty(QemuOpts *opts)
return NULL;
}
tty_serial_init(fd, 115200, 'N', 8, 1);
- chr = qemu_chr_open_fd(fd, fd);
+ qemu_chr_open_fd(chr, fd, fd);
chr->chr_ioctl = tty_serial_ioctl;
chr->chr_close = qemu_chr_close_tty;
return chr;
@@ -1350,10 +1342,9 @@ static void pp_close(CharDriverState *chr)
qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
}
-static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
+static CharDriverState *qemu_chr_open_pp(CharDriverState *chr, QemuOpts *opts)
{
const char *filename = qemu_opt_get(opts, "path");
- CharDriverState *chr;
ParallelCharDriver *drv;
int fd;
@@ -1371,7 +1362,6 @@ static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
drv->fd = fd;
drv->mode = IEEE1284_MODE_COMPAT;
- chr = g_malloc0(sizeof(CharDriverState));
chr->chr_write = null_chr_write;
chr->chr_ioctl = pp_ioctl;
chr->chr_close = pp_close;
@@ -1652,13 +1642,12 @@ static int win_chr_poll(void *opaque)
return 0;
}
-static CharDriverState *qemu_chr_open_win(QemuOpts *opts)
+static CharDriverState *qemu_chr_open_win(CharDriverState *chr,
+ QemuOpts *opts)
{
const char *filename = qemu_opt_get(opts, "path");
- CharDriverState *chr;
WinCharState *s;
- chr = g_malloc0(sizeof(CharDriverState));
s = g_malloc0(sizeof(WinCharState));
chr->opaque = s;
chr->chr_write = win_chr_write;
@@ -1666,7 +1655,6 @@ static CharDriverState *qemu_chr_open_win(QemuOpts *opts)
if (win_chr_init(chr, filename) < 0) {
g_free(s);
- g_free(chr);
return NULL;
}
qemu_chr_generic_open(chr);
@@ -1752,13 +1740,12 @@ static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
}
-static CharDriverState *qemu_chr_open_win_pipe(QemuOpts *opts)
+static CharDriverState *qemu_chr_open_win_pipe(CharDriverState *chr,
+ QemuOpts *opts)
{
const char *filename = qemu_opt_get(opts, "path");
- CharDriverState *chr;
WinCharState *s;
- chr = g_malloc0(sizeof(CharDriverState));
s = g_malloc0(sizeof(WinCharState));
chr->opaque = s;
chr->chr_write = win_chr_write;
@@ -1766,19 +1753,17 @@ static CharDriverState *qemu_chr_open_win_pipe(QemuOpts *opts)
if (win_chr_pipe_init(chr, filename) < 0) {
g_free(s);
- g_free(chr);
return NULL;
}
qemu_chr_generic_open(chr);
return chr;
}
-static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
+static CharDriverState *qemu_chr_open_win_file(CharDriverState *chr,
+ HANDLE fd_out)
{
- CharDriverState *chr;
WinCharState *s;
- chr = g_malloc0(sizeof(CharDriverState));
s = g_malloc0(sizeof(WinCharState));
s->hcom = fd_out;
chr->opaque = s;
@@ -1787,12 +1772,14 @@ static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
return chr;
}
-static CharDriverState *qemu_chr_open_win_con(QemuOpts *opts)
+static CharDriverState *qemu_chr_open_win_con(CharDriverState *chr,
+ QemuOpts *opts)
{
- return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
+ return qemu_chr_open_win_file(chr, GetStdHandle(STD_OUTPUT_HANDLE));
}
-static CharDriverState *qemu_chr_open_win_file_out(QemuOpts *opts)
+static CharDriverState *qemu_chr_open_win_file_out(CharDriverState *chr,
+ QemuOpts *opts)
{
const char *file_out = qemu_opt_get(opts, "path");
HANDLE fd_out;
@@ -1803,7 +1790,7 @@ static CharDriverState *qemu_chr_open_win_file_out(QemuOpts *opts)
return NULL;
}
- return qemu_chr_open_win_file(fd_out);
+ return qemu_chr_open_win_file(chr, fd_out);
}
static int win_stdio_write(CharDriverState *chr, const uint8_t *buf, int len)
@@ -1944,9 +1931,9 @@ static void win_stdio_close(CharDriverState *chr)
stdio_nb_clients--;
}
-static CharDriverState *qemu_chr_open_win_stdio(QemuOpts *opts)
+static CharDriverState *qemu_chr_open_win_stdio(CharDriverState *chr,
+ QemuOpts *opts)
{
- CharDriverState *chr;
WinStdioCharState *stdio;
DWORD dwMode;
int is_console = 0;
@@ -1956,7 +1943,6 @@ static CharDriverState *qemu_chr_open_win_stdio(QemuOpts *opts)
return NULL;
}
- chr = g_malloc0(sizeof(CharDriverState));
stdio = g_malloc0(sizeof(WinStdioCharState));
stdio->hStdIn = GetStdHandle(STD_INPUT_HANDLE);
@@ -2093,13 +2079,11 @@ static void udp_chr_close(CharDriverState *chr)
qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
}
-static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
+static CharDriverState *qemu_chr_open_udp(CharDriverState *chr, QemuOpts *opts)
{
- CharDriverState *chr = NULL;
NetCharDriver *s = NULL;
int fd = -1;
- chr = g_malloc0(sizeof(CharDriverState));
s = g_malloc0(sizeof(NetCharDriver));
fd = inet_dgram_opts(opts);
@@ -2118,7 +2102,6 @@ static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
return chr;
return_err:
- g_free(chr);
g_free(s);
if (fd >= 0) {
closesocket(fd);
@@ -2322,7 +2305,8 @@ static void tcp_chr_read(void *opaque)
#ifndef _WIN32
CharDriverState *qemu_chr_open_eventfd(int eventfd)
{
- return qemu_chr_open_fd(eventfd, eventfd);
+ CharDriverState *chr = g_malloc0(sizeof(CharDriverState));
+ return qemu_chr_open_fd(chr, eventfd, eventfd);
}
#endif
@@ -2425,9 +2409,9 @@ static void tcp_chr_close(CharDriverState *chr)
qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
}
-static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
+static CharDriverState *qemu_chr_open_socket(CharDriverState *chr,
+ QemuOpts *opts)
{
- CharDriverState *chr = NULL;
TCPCharDriver *s = NULL;
int fd = -1;
int is_listen;
@@ -2444,7 +2428,6 @@ static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
if (!is_listen)
is_waitconnect = 0;
- chr = g_malloc0(sizeof(CharDriverState));
s = g_malloc0(sizeof(TCPCharDriver));
if (is_unix) {
@@ -2521,7 +2504,6 @@ static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
if (fd >= 0)
closesocket(fd);
g_free(s);
- g_free(chr);
return NULL;
}
@@ -2719,7 +2701,7 @@ fail:
static const struct {
const char *name;
- CharDriverState *(*open)(QemuOpts *opts);
+ CharDriverState *(*open)(CharDriverState *chr, QemuOpts *opts);
} backend_table[] = {
{ .name = "null", .open = qemu_chr_open_null },
{ .name = "socket", .open = qemu_chr_open_socket },
@@ -2781,8 +2763,9 @@ CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts,
return NULL;
}
- chr = backend_table[i].open(opts);
- if (!chr) {
+ chr = g_malloc0(sizeof(CharDriverState));
+ if (!backend_table[i].open(chr, opts)) {
+ g_free(chr);
fprintf(stderr, "chardev: opening backend \"%s\" failed\n",
qemu_opt_get(opts, "backend"));
return NULL;
diff --git a/spice-qemu-char.c b/spice-qemu-char.c
index 09aa22d..2fb8a10 100644
--- a/spice-qemu-char.c
+++ b/spice-qemu-char.c
@@ -188,9 +188,8 @@ static void print_allowed_subtypes(void)
fprintf(stderr, "\n");
}
-CharDriverState *qemu_chr_open_spice(QemuOpts *opts)
+CharDriverState *qemu_chr_open_spice(CharDriverState *chr, QemuOpts *opts)
{
- CharDriverState *chr;
SpiceCharDriver *s;
const char* name = qemu_opt_get(opts, "name");
uint32_t debug = qemu_opt_get_number(opts, "debug", 0);
@@ -214,7 +213,6 @@ CharDriverState *qemu_chr_open_spice(QemuOpts *opts)
return NULL;
}
- chr = g_malloc0(sizeof(CharDriverState));
s = g_malloc0(sizeof(SpiceCharDriver));
s->chr = chr;
s->debug = debug;
diff --git a/ui/qemu-spice.h b/ui/qemu-spice.h
index 3299da8..fb582c5 100644
--- a/ui/qemu-spice.h
+++ b/ui/qemu-spice.h
@@ -45,7 +45,7 @@ int qemu_spice_migrate_info(const char *hostname, int port, int tls_port,
void do_info_spice_print(Monitor *mon, const QObject *data);
void do_info_spice(Monitor *mon, QObject **ret_data);
-CharDriverState *qemu_chr_open_spice(QemuOpts *opts);
+CharDriverState *qemu_chr_open_spice(CharDriverState *chr, QemuOpts *opts);
#else /* CONFIG_SPICE */
#include "monitor.h"
--
1.7.4.1
^ permalink raw reply related [flat|nested] 20+ messages in thread* [Qemu-devel] [PATCH 03/16] qemu-char: Allow a chardev to reconnect if disconnected
2012-09-18 20:00 [Qemu-devel] [PATCH 00/16 v4] Add an IPMI device to qemu minyard
2012-09-18 20:00 ` [Qemu-devel] [PATCH 01/16] vl: Move init_timer_alarm() earlier minyard
2012-09-18 20:00 ` [Qemu-devel] [PATCH 02/16] qemu-char: Allocate CharDriverState in qemu_chr_new_from_opts minyard
@ 2012-09-18 20:00 ` minyard
2012-09-18 20:00 ` [Qemu-devel] [PATCH 04/16] qemu-char: Fix a race reporting opens and closes minyard
` (13 subsequent siblings)
16 siblings, 0 replies; 20+ messages in thread
From: minyard @ 2012-09-18 20:00 UTC (permalink / raw)
To: qemu-devel; +Cc: Corey Minyard
From: Corey Minyard <cminyard@mvista.com>
Allow a socket that connects to reconnect on a periodic basis if it
fails to connect at startup or if the connection drops while in use.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
---
qemu-char.c | 62 ++++++++++++++++++++++++++++++++++++++++++++++++++----
qemu-char.h | 4 +++
qemu-config.c | 3 ++
qemu-options.hx | 11 +++++++--
4 files changed, 72 insertions(+), 8 deletions(-)
diff --git a/qemu-char.c b/qemu-char.c
index 1409d67..f6a671b 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -111,9 +111,17 @@ void qemu_chr_be_event(CharDriverState *s, int event)
/* Keep track if the char device is open */
switch (event) {
case CHR_EVENT_OPENED:
+ if (s->recon_timer) {
+ qemu_del_timer(s->recon_timer);
+ }
s->opened = 1;
break;
case CHR_EVENT_CLOSED:
+ if (s->recon_timer) {
+ qemu_mod_timer(s->recon_timer,
+ (qemu_get_clock_ns(vm_clock) +
+ (s->recon_time * 1000000000ULL)));
+ }
s->opened = 0;
break;
}
@@ -2737,6 +2745,20 @@ static const struct {
#endif
};
+static void recon_timeout(void *opaque)
+{
+ CharDriverState *chr = opaque;
+
+ if (chr->opened) {
+ return;
+ }
+
+ qemu_mod_timer(chr->recon_timer,
+ (qemu_get_clock_ns(vm_clock) +
+ (chr->recon_time * 1000000000ULL)));
+ backend_table[chr->backend].open(chr, chr->opts);
+}
+
CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts,
void (*init)(struct CharDriverState *s))
{
@@ -2764,11 +2786,37 @@ CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts,
}
chr = g_malloc0(sizeof(CharDriverState));
+
+ chr->backend = i;
+ chr->recon_time = qemu_opt_get_number(opts, "reconnect", 0);
+ if (chr->recon_time) {
+ if (strcmp(qemu_opt_get(opts, "backend"), "socket") != 0) {
+ g_free(chr);
+ fprintf(stderr, "chardev: reconnect only supported on sockets\n");
+ return NULL;
+ }
+ if (qemu_opt_get_bool(opts, "server", 0)) {
+ g_free(chr);
+ fprintf(stderr, "chardev: server device cannot reconnect\n");
+ return NULL;
+ }
+ chr->opts = opts;
+ chr->recon_timer = qemu_new_timer_ns(vm_clock, recon_timeout, chr);
+
+ /* Make sure it connects in time. */
+ qemu_mod_timer(chr->recon_timer,
+ (qemu_get_clock_ns(vm_clock) +
+ (chr->recon_time * 1000000000ULL)));
+ }
+
if (!backend_table[i].open(chr, opts)) {
- g_free(chr);
- fprintf(stderr, "chardev: opening backend \"%s\" failed\n",
- qemu_opt_get(opts, "backend"));
- return NULL;
+ if (!chr->recon_time) {
+ /* Reconnect is not enabled, give up */
+ g_free(chr);
+ fprintf(stderr, "chardev: opening backend \"%s\" failed\n",
+ qemu_opt_get(opts, "backend"));
+ return NULL;
+ }
}
if (!chr->filename)
@@ -2838,8 +2886,12 @@ void qemu_chr_fe_close(struct CharDriverState *chr)
void qemu_chr_delete(CharDriverState *chr)
{
QTAILQ_REMOVE(&chardevs, chr, next);
- if (chr->chr_close)
+ if (chr->chr_close) {
chr->chr_close(chr);
+ }
+ if (chr->recon_timer) {
+ qemu_free_timer(chr->recon_timer);
+ }
g_free(chr->filename);
g_free(chr->label);
g_free(chr);
diff --git a/qemu-char.h b/qemu-char.h
index 486644b..d21ae39 100644
--- a/qemu-char.h
+++ b/qemu-char.h
@@ -75,6 +75,10 @@ struct CharDriverState {
int opened;
int avail_connections;
QTAILQ_ENTRY(CharDriverState) next;
+ int backend;
+ QemuOpts *opts;
+ QEMUTimer *recon_timer;
+ uint64_t recon_time;
};
/**
diff --git a/qemu-config.c b/qemu-config.c
index eba977e..63fa2ba 100644
--- a/qemu-config.c
+++ b/qemu-config.c
@@ -205,6 +205,9 @@ static QemuOptsList qemu_chardev_opts = {
.name = "mux",
.type = QEMU_OPT_BOOL,
},{
+ .name = "reconnect",
+ .type = QEMU_OPT_NUMBER,
+ },{
.name = "signal",
.type = QEMU_OPT_BOOL,
},{
diff --git a/qemu-options.hx b/qemu-options.hx
index 804a2d1..d60af6a 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -1659,8 +1659,9 @@ DEFHEADING(Character device options:)
DEF("chardev", HAS_ARG, QEMU_OPTION_chardev,
"-chardev null,id=id[,mux=on|off]\n"
"-chardev socket,id=id[,host=host],port=host[,to=to][,ipv4][,ipv6][,nodelay]\n"
- " [,server][,nowait][,telnet][,mux=on|off] (tcp)\n"
- "-chardev socket,id=id,path=path[,server][,nowait][,telnet],[mux=on|off] (unix)\n"
+ " [,server][,nowait][,telnet][,mux=on|off][,reconnect=seconds] (tcp)\n"
+ "-chardev socket,id=id,path=path[,server][,nowait][,telnet][,mux=on|off]\n"
+ " [,reconnect=seconds] (unix)\n"
"-chardev udp,id=id[,host=host],port=port[,localaddr=localaddr]\n"
" [,localport=localport][,ipv4][,ipv6][,mux=on|off]\n"
"-chardev msmouse,id=id[,mux=on|off]\n"
@@ -1729,7 +1730,7 @@ Options to each backend are described below.
A void device. This device will not emit any data, and will drop any data it
receives. The null backend does not take any options.
-@item -chardev socket ,id=@var{id} [@var{TCP options} or @var{unix options}] [,server] [,nowait] [,telnet]
+@item -chardev socket ,id=@var{id} [@var{TCP options} or @var{unix options}] [,server] [,nowait] [,telnet] [,reconnect=@var{seconds}]
Create a two-way stream socket, which can be either a TCP or a unix socket. A
unix socket will be created if @option{path} is specified. Behaviour is
@@ -1743,6 +1744,10 @@ connect to a listening socket.
@option{telnet} specifies that traffic on the socket should interpret telnet
escape sequences.
+@option{reconnect} specifies that if the socket does not come up at startup,
+or if the socket is closed for some reason (like the other end exited),
+wait the given number of seconds and attempt to reconnect.
+
TCP and unix socket options are given below:
@table @option
--
1.7.4.1
^ permalink raw reply related [flat|nested] 20+ messages in thread* [Qemu-devel] [PATCH 04/16] qemu-char: Fix a race reporting opens and closes
2012-09-18 20:00 [Qemu-devel] [PATCH 00/16 v4] Add an IPMI device to qemu minyard
` (2 preceding siblings ...)
2012-09-18 20:00 ` [Qemu-devel] [PATCH 03/16] qemu-char: Allow a chardev to reconnect if disconnected minyard
@ 2012-09-18 20:00 ` minyard
2012-09-18 20:00 ` [Qemu-devel] [PATCH 05/16] qemu-char: remove free of chr from win_stdio_close minyard
` (12 subsequent siblings)
16 siblings, 0 replies; 20+ messages in thread
From: minyard @ 2012-09-18 20:00 UTC (permalink / raw)
To: qemu-devel; +Cc: Corey Minyard
From: Corey Minyard <cminyard@mvista.com>
When an open event is reported, it is done through a bh. But close
events are reported immediately. So if an open event is in the bh
and a close occurs, an extraneous open happens, which can confuse a
user.
To fix this, this patch sets the "opened" flag immediately instead
of in the bh handler and checks to make sure the opened flag is
set before reporting an open event.
This also modifies the spice code to call qemu_chr_generic_open
to report an open, to keep things consistent.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
---
qemu-char.c | 18 ++++++++++++++++--
spice-qemu-char.c | 7 +++++--
2 files changed, 21 insertions(+), 4 deletions(-)
diff --git a/qemu-char.c b/qemu-char.c
index f6a671b..9e3ac40 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -111,10 +111,13 @@ void qemu_chr_be_event(CharDriverState *s, int event)
/* Keep track if the char device is open */
switch (event) {
case CHR_EVENT_OPENED:
+ /*
+ * See the comment in qemu_chr_generic_open_bh() for why
+ * 's->opened = 1' is not here.
+ */
if (s->recon_timer) {
qemu_del_timer(s->recon_timer);
}
- s->opened = 1;
break;
case CHR_EVENT_CLOSED:
if (s->recon_timer) {
@@ -134,13 +137,24 @@ void qemu_chr_be_event(CharDriverState *s, int event)
static void qemu_chr_generic_open_bh(void *opaque)
{
CharDriverState *s = opaque;
- qemu_chr_be_event(s, CHR_EVENT_OPENED);
+ /*
+ * Since the "close" event doesn't go through a bh, there is a
+ * possible race condition if a close comes in after an open, but
+ * the open is in the bh queue. So we double-check here, and we
+ * set opened in qemu_chr_generic_open() instead of
+ * qemu_chr_be_event().
+ */
+ if (s->opened) {
+ qemu_chr_be_event(s, CHR_EVENT_OPENED);
+ }
qemu_bh_delete(s->bh);
s->bh = NULL;
}
void qemu_chr_generic_open(CharDriverState *s)
{
+ /* See the comment in qemu_chr_generic_open_bh() for why this is here */
+ s->opened = 1;
if (s->bh == NULL) {
s->bh = qemu_bh_new(qemu_chr_generic_open_bh, s);
qemu_bh_schedule(s->bh);
diff --git a/spice-qemu-char.c b/spice-qemu-char.c
index 2fb8a10..d7516bd 100644
--- a/spice-qemu-char.c
+++ b/spice-qemu-char.c
@@ -93,8 +93,11 @@ static void vmc_state(SpiceCharDeviceInstance *sin, int connected)
return;
}
- qemu_chr_be_event(scd->chr,
- connected ? CHR_EVENT_OPENED : CHR_EVENT_CLOSED);
+ if (connected) {
+ qemu_chr_generic_open(scd->chr);
+ } else {
+ qemu_chr_be_event(scd->chr, CHR_EVENT_CLOSED);
+ }
}
static SpiceCharDeviceInterface vmc_interface = {
--
1.7.4.1
^ permalink raw reply related [flat|nested] 20+ messages in thread* [Qemu-devel] [PATCH 05/16] qemu-char: remove free of chr from win_stdio_close
2012-09-18 20:00 [Qemu-devel] [PATCH 00/16 v4] Add an IPMI device to qemu minyard
` (3 preceding siblings ...)
2012-09-18 20:00 ` [Qemu-devel] [PATCH 04/16] qemu-char: Fix a race reporting opens and closes minyard
@ 2012-09-18 20:00 ` minyard
2012-09-18 20:00 ` [Qemu-devel] [PATCH 06/16] qemu-char: Close fd at end of file minyard
` (11 subsequent siblings)
16 siblings, 0 replies; 20+ messages in thread
From: minyard @ 2012-09-18 20:00 UTC (permalink / raw)
To: qemu-devel; +Cc: Corey Minyard
From: Corey Minyard <cminyard@mvista.com>
This will result in a double free on close, because it's freed
in qemu_chr_delete() right after calling the close function.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
---
qemu-char.c | 1 -
1 files changed, 0 insertions(+), 1 deletions(-)
diff --git a/qemu-char.c b/qemu-char.c
index 9e3ac40..a94d9ef 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -1949,7 +1949,6 @@ static void win_stdio_close(CharDriverState *chr)
}
g_free(chr->opaque);
- g_free(chr);
stdio_nb_clients--;
}
--
1.7.4.1
^ permalink raw reply related [flat|nested] 20+ messages in thread* [Qemu-devel] [PATCH 06/16] qemu-char: Close fd at end of file
2012-09-18 20:00 [Qemu-devel] [PATCH 00/16 v4] Add an IPMI device to qemu minyard
` (4 preceding siblings ...)
2012-09-18 20:00 ` [Qemu-devel] [PATCH 05/16] qemu-char: remove free of chr from win_stdio_close minyard
@ 2012-09-18 20:00 ` minyard
2012-09-18 20:00 ` [Qemu-devel] [PATCH 07/16] qom: release previous object when setting minyard
` (10 subsequent siblings)
16 siblings, 0 replies; 20+ messages in thread
From: minyard @ 2012-09-18 20:00 UTC (permalink / raw)
To: qemu-devel; +Cc: Corey Minyard
From: Corey Minyard <cminyard@mvista.com>
The chardev backends that used qemu_chr_open_fd did not get their
file descriptors closed at end of file or when the chardev was closed.
This could result in a file descriptor leak.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
---
qemu-char.c | 31 +++++++++++++++++++++++++------
1 files changed, 25 insertions(+), 6 deletions(-)
diff --git a/qemu-char.c b/qemu-char.c
index a94d9ef..ea0d8b7 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -566,6 +566,7 @@ static int stdio_nb_clients;
typedef struct {
int fd_in, fd_out;
int max_size;
+ int close_fds_on_close;
} FDCharDriver;
@@ -584,6 +585,20 @@ static int fd_chr_read_poll(void *opaque)
return s->max_size;
}
+static void fd_close_fds(FDCharDriver *s)
+{
+ if (!s->close_fds_on_close) {
+ return;
+ }
+
+ if ((s->fd_out != s->fd_in) && (s->fd_out != -1)) {
+ close(s->fd_out);
+ }
+ s->fd_out = -1;
+ close(s->fd_in);
+ s->fd_in = -1;
+}
+
static void fd_chr_read(void *opaque)
{
CharDriverState *chr = opaque;
@@ -600,6 +615,7 @@ static void fd_chr_read(void *opaque)
if (size == 0) {
/* FD has been closed. Remove it from the active list. */
qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
+ fd_close_fds(s);
qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
return;
}
@@ -629,6 +645,7 @@ static void fd_chr_close(struct CharDriverState *chr)
if (display_type == DT_NOGRAPHIC && s->fd_in == 0) {
} else {
qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
+ fd_close_fds(s);
}
}
@@ -638,13 +655,15 @@ static void fd_chr_close(struct CharDriverState *chr)
/* open a character device to a unix fd */
static CharDriverState *qemu_chr_open_fd(CharDriverState *chr,
- int fd_in, int fd_out)
+ int fd_in, int fd_out,
+ int close_fds_on_close)
{
FDCharDriver *s;
s = g_malloc0(sizeof(FDCharDriver));
s->fd_in = fd_in;
s->fd_out = fd_out;
+ s->close_fds_on_close = close_fds_on_close;
chr->opaque = s;
chr->chr_write = fd_chr_write;
chr->chr_update_read_handler = fd_chr_update_read_handler;
@@ -665,7 +684,7 @@ static CharDriverState *qemu_chr_open_file_out(CharDriverState *chr,
if (fd_out < 0) {
return NULL;
}
- return qemu_chr_open_fd(chr, -1, fd_out);
+ return qemu_chr_open_fd(chr, -1, fd_out, 1);
}
static CharDriverState *qemu_chr_open_pipe(CharDriverState *chr, QemuOpts *opts)
@@ -693,7 +712,7 @@ static CharDriverState *qemu_chr_open_pipe(CharDriverState *chr, QemuOpts *opts)
return NULL;
}
}
- return qemu_chr_open_fd(chr, fd_in, fd_out);
+ return qemu_chr_open_fd(chr, fd_in, fd_out, 1);
}
@@ -797,7 +816,7 @@ static CharDriverState *qemu_chr_open_stdio(CharDriverState *chr,
atexit(term_exit);
}
- qemu_chr_open_fd(chr, 0, 1);
+ qemu_chr_open_fd(chr, 0, 1, 0);
chr->chr_close = qemu_chr_close_stdio;
chr->chr_set_echo = qemu_chr_set_echo_stdio;
qemu_set_fd_handler2(0, stdio_read_poll, stdio_read, NULL, chr);
@@ -1242,7 +1261,7 @@ static CharDriverState *qemu_chr_open_tty(CharDriverState *chr, QemuOpts *opts)
return NULL;
}
tty_serial_init(fd, 115200, 'N', 8, 1);
- qemu_chr_open_fd(chr, fd, fd);
+ qemu_chr_open_fd(chr, fd, fd, 1);
chr->chr_ioctl = tty_serial_ioctl;
chr->chr_close = qemu_chr_close_tty;
return chr;
@@ -2327,7 +2346,7 @@ static void tcp_chr_read(void *opaque)
CharDriverState *qemu_chr_open_eventfd(int eventfd)
{
CharDriverState *chr = g_malloc0(sizeof(CharDriverState));
- return qemu_chr_open_fd(chr, eventfd, eventfd);
+ return qemu_chr_open_fd(chr, eventfd, eventfd, 0);
}
#endif
--
1.7.4.1
^ permalink raw reply related [flat|nested] 20+ messages in thread* [Qemu-devel] [PATCH 07/16] qom: release previous object when setting
2012-09-18 20:00 [Qemu-devel] [PATCH 00/16 v4] Add an IPMI device to qemu minyard
` (5 preceding siblings ...)
2012-09-18 20:00 ` [Qemu-devel] [PATCH 06/16] qemu-char: Close fd at end of file minyard
@ 2012-09-18 20:00 ` minyard
2012-09-18 20:00 ` [Qemu-devel] [PATCH 08/16] Add a base IPMI interface minyard
` (9 subsequent siblings)
16 siblings, 0 replies; 20+ messages in thread
From: minyard @ 2012-09-18 20:00 UTC (permalink / raw)
To: qemu-devel; +Cc: Corey Minyard
From: Corey Minyard <cminyard@mvista.com>
When setting an object, if you don't release the previous object
that was there, it may become unusable. This change allows a
chardev to be removed from one object's properties and added to
another's.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
---
qom/object.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/qom/object.c b/qom/object.c
index e3e9242..6bbb6a8 100644
--- a/qom/object.c
+++ b/qom/object.c
@@ -692,6 +692,9 @@ void object_property_set(Object *obj, Visitor *v, const char *name,
if (!prop->set) {
error_set(errp, QERR_PERMISSION_DENIED);
} else {
+ if (prop->release) {
+ prop->release(obj, name, prop->opaque);
+ }
prop->set(obj, v, prop->opaque, name, errp);
}
}
--
1.7.4.1
^ permalink raw reply related [flat|nested] 20+ messages in thread* [Qemu-devel] [PATCH 08/16] Add a base IPMI interface
2012-09-18 20:00 [Qemu-devel] [PATCH 00/16 v4] Add an IPMI device to qemu minyard
` (6 preceding siblings ...)
2012-09-18 20:00 ` [Qemu-devel] [PATCH 07/16] qom: release previous object when setting minyard
@ 2012-09-18 20:00 ` minyard
2012-09-18 20:00 ` [Qemu-devel] [PATCH 09/16] IPMI: Add a PC ISA type structure minyard
` (8 subsequent siblings)
16 siblings, 0 replies; 20+ messages in thread
From: minyard @ 2012-09-18 20:00 UTC (permalink / raw)
To: qemu-devel; +Cc: Corey Minyard
From: Corey Minyard <cminyard@mvista.com>
Add the basic IPMI types and infrastructure to QEMU. Low-level
interfaces and simulation interfaces will register with this; it's
kind of the go-between to tie them together.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
---
default-configs/i386-softmmu.mak | 1 +
default-configs/x86_64-softmmu.mak | 1 +
hw/Makefile.objs | 2 +
hw/ipmi.c | 167 +++++++++++++++++++++++++
hw/ipmi.h | 241 ++++++++++++++++++++++++++++++++++++
qemu-doc.texi | 2 +
6 files changed, 414 insertions(+), 0 deletions(-)
create mode 100644 hw/ipmi.c
create mode 100644 hw/ipmi.h
diff --git a/default-configs/i386-softmmu.mak b/default-configs/i386-softmmu.mak
index 2c78175..eb17afc 100644
--- a/default-configs/i386-softmmu.mak
+++ b/default-configs/i386-softmmu.mak
@@ -7,6 +7,7 @@ CONFIG_VGA_ISA=y
CONFIG_VGA_CIRRUS=y
CONFIG_VMWARE_VGA=y
CONFIG_VMMOUSE=y
+CONFIG_IPMI=y
CONFIG_SERIAL=y
CONFIG_PARALLEL=y
CONFIG_I8254=y
diff --git a/default-configs/x86_64-softmmu.mak b/default-configs/x86_64-softmmu.mak
index 233a856..e4e3e4f 100644
--- a/default-configs/x86_64-softmmu.mak
+++ b/default-configs/x86_64-softmmu.mak
@@ -7,6 +7,7 @@ CONFIG_VGA_ISA=y
CONFIG_VGA_CIRRUS=y
CONFIG_VMWARE_VGA=y
CONFIG_VMMOUSE=y
+CONFIG_IPMI=y
CONFIG_SERIAL=y
CONFIG_PARALLEL=y
CONFIG_I8254=y
diff --git a/hw/Makefile.objs b/hw/Makefile.objs
index 6dfebd2..4df7119 100644
--- a/hw/Makefile.objs
+++ b/hw/Makefile.objs
@@ -20,6 +20,8 @@ hw-obj-$(CONFIG_M48T59) += m48t59.o
hw-obj-$(CONFIG_ESCC) += escc.o
hw-obj-$(CONFIG_EMPTY_SLOT) += empty_slot.o
+hw-obj-$(CONFIG_IPMI) += ipmi.o
+
hw-obj-$(CONFIG_SERIAL) += serial.o
hw-obj-$(CONFIG_PARALLEL) += parallel.o
hw-obj-$(CONFIG_I8254) += i8254_common.o i8254.o
diff --git a/hw/ipmi.c b/hw/ipmi.c
new file mode 100644
index 0000000..252eab0
--- /dev/null
+++ b/hw/ipmi.c
@@ -0,0 +1,167 @@
+/*
+ * QEMU IPMI emulation
+ *
+ * Copyright (c) 2012 Corey Minyard, MontaVista Software, LLC
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "hw.h"
+#include "ipmi.h"
+#include "sysemu.h"
+#include "qmp-commands.h"
+
+#ifdef DO_IPMI_THREAD
+static void *ipmi_thread(void *opaque)
+{
+ IPMIInterface *s = opaque;
+ int64_t wait_until;
+
+ ipmi_lock(s);
+ for (;;) {
+ qemu_cond_wait(&s->waker, &s->lock);
+ wait_until = 0;
+ while (s->do_wake) {
+ s->do_wake = 0;
+ s->handle_if_event(s);
+ }
+ }
+ ipmi_unlock(s);
+ return NULL;
+}
+#endif
+
+static int ipmi_do_hw_op(IPMIInterface *s, enum ipmi_op op, int checkonly)
+{
+ switch (op) {
+ case IPMI_RESET_CHASSIS:
+ if (checkonly) {
+ return 0;
+ }
+ qemu_system_reset_request();
+ return 0;
+
+ case IPMI_POWEROFF_CHASSIS:
+ if (checkonly) {
+ return 0;
+ }
+ qemu_system_powerdown_request();
+ return 0;
+
+ case IPMI_SEND_NMI:
+ if (checkonly) {
+ return 0;
+ }
+ qemu_mutex_lock_iothread();
+ qmp_inject_nmi(NULL);
+ qemu_mutex_unlock_iothread();
+ return 0;
+
+ case IPMI_POWERCYCLE_CHASSIS:
+ case IPMI_PULSE_DIAG_IRQ:
+ case IPMI_SHUTDOWN_VIA_ACPI_OVERTEMP:
+ case IPMI_POWERON_CHASSIS:
+ default:
+ return IPMI_CC_COMMAND_NOT_SUPPORTED;
+ }
+}
+
+static void ipmi_set_irq_enable(IPMIInterface *s, int val)
+{
+ s->irqs_enabled = val;
+}
+
+void ipmi_interface_reset(IPMIInterface *s)
+{
+ IPMIBmcClass *bk = IPMI_BMC_GET_CLASS(s->bmc);
+
+ if (bk->handle_reset) {
+ bk->handle_reset(s->bmc);
+ }
+}
+
+int ipmi_interface_init(IPMIInterface *s)
+{
+ IPMIInterfaceClass *k = IPMI_INTERFACE_GET_CLASS(s);
+
+ if (k->init) {
+ int rc = k->init(s);
+ if (rc) {
+ return rc;
+ }
+ }
+
+ if (!s->slave_addr) {
+ s->slave_addr = 0x20;
+ }
+
+#ifdef DO_IPMI_THREAD
+ qemu_mutex_init(&s->lock);
+ qemu_cond_init(&s->waker);
+ qemu_thread_create(&s->thread, ipmi_thread, s, 0);
+#endif
+
+ return 0;
+}
+
+static void ipmi_interface_class_init(ObjectClass *class, void *data)
+{
+ IPMIInterfaceClass *ik = IPMI_INTERFACE_CLASS(class);
+
+ ik->do_hw_op = ipmi_do_hw_op;
+ ik->set_irq_enable = ipmi_set_irq_enable;
+}
+
+static TypeInfo ipmi_interface_type_info = {
+ .name = TYPE_IPMI_INTERFACE,
+ .parent = TYPE_OBJECT,
+ .instance_size = sizeof(IPMIInterface),
+ .abstract = true,
+ .class_size = sizeof(IPMIInterfaceClass),
+ .class_init = ipmi_interface_class_init,
+};
+
+int ipmi_bmc_init(IPMIBmc *s)
+{
+ IPMIBmcClass *k = IPMI_BMC_GET_CLASS(s);
+
+ if (k->init) {
+ int rc = k->init(s);
+ if (rc) {
+ return rc;
+ }
+ }
+ return 0;
+}
+
+static TypeInfo ipmi_bmc_type_info = {
+ .name = TYPE_IPMI_BMC,
+ .parent = TYPE_OBJECT,
+ .instance_size = sizeof(IPMIBmc),
+ .abstract = true,
+ .class_size = sizeof(IPMIBmcClass),
+};
+
+static void ipmi_register_types(void)
+{
+ type_register_static(&ipmi_interface_type_info);
+ type_register_static(&ipmi_bmc_type_info);
+}
+
+type_init(ipmi_register_types)
diff --git a/hw/ipmi.h b/hw/ipmi.h
new file mode 100644
index 0000000..13f0562
--- /dev/null
+++ b/hw/ipmi.h
@@ -0,0 +1,241 @@
+/*
+ * IPMI base class
+ *
+ * Copyright (c) 2012 Corey Minyard, MontaVista Software, LLC
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef HW_IPMI_H
+#define HW_IPMI_H
+
+#include "memory.h"
+#include "qemu-common.h"
+#include "qdev.h"
+
+/*
+ * Create a separate thread for the IPMI interface itself. This is a
+ * better simulation and lets the IPMI interface do things asynchronously
+ * if necessary.
+ */
+/* #define DO_IPMI_THREAD */
+
+#ifdef DO_IPMI_THREAD
+#include "qemu-thread.h"
+
+#define ipmi_lock(s) qemu_mutex_lock(&(s)->lock)
+#define ipmi_unlock(s) qemu_mutex_unlock(&(s)->lock)
+#define ipmi_signal(s) \
+do { \
+ (s)->do_wake = 1; \
+ qemu_cond_signal(&(s)->waker); \
+} while (0)
+
+#else
+#define ipmi_lock(s) ((s)->lockcount++)
+#define ipmi_unlock(s) ((s)->lockcount--)
+#define ipmi_signal(s) \
+do { \
+ (s)->do_wake = 1; \
+ while ((s)->do_wake) { \
+ (s)->do_wake = 0; \
+ (IPMI_INTERFACE_GET_CLASS(s))->handle_if_event(s); \
+ } \
+} while (0)
+#endif
+
+#define MAX_IPMI_MSG_SIZE 300
+
+enum ipmi_op {
+ IPMI_RESET_CHASSIS,
+ IPMI_POWEROFF_CHASSIS,
+ IPMI_POWERON_CHASSIS,
+ IPMI_POWERCYCLE_CHASSIS,
+ IPMI_PULSE_DIAG_IRQ,
+ IPMI_SHUTDOWN_VIA_ACPI_OVERTEMP,
+ IPMI_SEND_NMI
+};
+
+#define IPMI_CC_INVALID_CMD 0xc1
+#define IPMI_CC_COMMAND_INVALID_FOR_LUN 0xc2
+#define IPMI_CC_TIMEOUT 0xc3
+#define IPMI_CC_OUT_OF_SPACE 0xc4
+#define IPMI_CC_INVALID_RESERVATION 0xc5
+#define IPMI_CC_REQUEST_DATA_TRUNCATED 0xc6
+#define IPMI_CC_REQUEST_DATA_LENGTH_INVALID 0xc7
+#define IPMI_CC_PARM_OUT_OF_RANGE 0xc9
+#define IPMI_CC_CANNOT_RETURN_REQ_NUM_BYTES 0xca
+#define IPMI_CC_REQ_ENTRY_NOT_PRESENT 0xcb
+#define IPMI_CC_INVALID_DATA_FIELD 0xcc
+#define IPMI_CC_BMC_INIT_IN_PROGRESS 0xd2
+#define IPMI_CC_COMMAND_NOT_SUPPORTED 0xd5
+
+#define IPMI_NETFN_APP 0x06
+
+#define IPMI_DEBUG 1
+
+/* Specified in the SMBIOS spec. */
+#define IPMI_SMBIOS_KCS 0x01
+#define IPMI_SMBIOS_SMIC 0x02
+#define IPMI_SMBIOS_BT 0x03
+#define IPMI_SMBIOS_SSIF 0x04
+
+/* IPMI Interface types (KCS, SMIC, BT) are prefixed with this */
+#define TYPE_IPMI_INTERFACE_PREFIX "ipmi-interface-"
+
+typedef struct IPMIBmc IPMIBmc;
+
+/*
+ * An IPMI Interface, the interface for talking between the target
+ * and the BMC.
+ */
+#define TYPE_IPMI_INTERFACE "ipmi-interface"
+#define IPMI_INTERFACE(obj) \
+ OBJECT_CHECK(IPMIInterface, (obj), TYPE_IPMI_INTERFACE)
+#define IPMI_INTERFACE_CLASS(klass) \
+ OBJECT_CLASS_CHECK(IPMIInterfaceClass, (klass), TYPE_IPMI_INTERFACE)
+#define IPMI_INTERFACE_GET_CLASS(obj) \
+ OBJECT_GET_CLASS(IPMIInterfaceClass, (obj), TYPE_IPMI_INTERFACE)
+
+typedef struct IPMIInterface {
+ Object parent_obj;
+
+ IPMIBmc *bmc;
+
+#ifdef DO_IPMI_THREAD
+ QemuThread thread;
+ QemuCond waker;
+ QemuMutex lock;
+#else
+ int lockcount;
+#endif
+ bool do_wake;
+
+ qemu_irq irq;
+
+ unsigned long io_base;
+ unsigned long io_length;
+ MemoryRegion io;
+
+ unsigned char slave_addr;
+
+ bool obf_irq_set;
+ bool atn_irq_set;
+ bool use_irq;
+ bool irqs_enabled;
+
+ uint8_t outmsg[MAX_IPMI_MSG_SIZE];
+ uint32_t outpos;
+ uint32_t outlen;
+
+ uint8_t inmsg[MAX_IPMI_MSG_SIZE];
+ uint32_t inlen;
+ bool write_end;
+} IPMIInterface;
+
+typedef struct IPMIInterfaceClass {
+ ObjectClass parent_class;
+
+ unsigned int smbios_type;
+
+ int (*init)(struct IPMIInterface *s);
+
+ /*
+ * Perform various operations on the hardware. If checkonly is
+ * true, it will return if the operation can be performed, but it
+ * will not do the operation.
+ */
+ int (*do_hw_op)(struct IPMIInterface *s, enum ipmi_op op, int checkonly);
+
+ /*
+ * Enable/disable irqs on the interface when the BMC requests this.
+ */
+ void (*set_irq_enable)(struct IPMIInterface *s, int val);
+
+ /*
+ * Handle an event that occurred on the interface, generally the.
+ * target writing to a register.
+ */
+ void (*handle_if_event)(struct IPMIInterface *s);
+
+ /*
+ * The interfaces use this to perform certain ops
+ */
+ void (*set_atn)(struct IPMIInterface *s, int val, int irq);
+
+ /*
+ * Handle a response from the bmc. Must be called with ipmi_lock
+ * held.
+ */
+ void (*handle_rsp)(struct IPMIInterface *s, uint8_t msg_id,
+ unsigned char *rsp, unsigned int rsp_len);
+} IPMIInterfaceClass;
+
+int ipmi_interface_init(IPMIInterface *s);
+void ipmi_interface_reset(IPMIInterface *s);
+
+/*
+ * Define a BMC simulator (or perhaps a connection to a real BMC)
+ */
+#define TYPE_IPMI_BMC "ipmi-bmc"
+#define IPMI_BMC(obj) \
+ OBJECT_CHECK(IPMIBmc, (obj), TYPE_IPMI_BMC)
+#define IPMI_BMC_CLASS(klass) \
+ OBJECT_CLASS_CHECK(IPMIBmcClass, (klass), TYPE_IPMI_BMC)
+#define IPMI_BMC_GET_CLASS(obj) \
+ OBJECT_GET_CLASS(IPMIBmcClass, (obj), TYPE_IPMI_BMC)
+
+#define TYPE_IPMI_BMC_EXTERN "ipmi-bmc-extern"
+#define TYPE_IPMI_BMC_SIMULATOR "ipmi-bmc-sim"
+
+struct IPMIBmc {
+ Object parent_obj;
+
+ IPMIInterface *intf;
+ CharDriverState *chr;
+};
+
+typedef struct IPMIBmcClass {
+ ObjectClass parent_class;
+
+ int (*init)(IPMIBmc *s);
+
+ /* Called when the system resets to report to the bmc. */
+ void (*handle_reset)(struct IPMIBmc *s);
+
+ /*
+ * Handle a command to the bmc. Must be called with ipmi_lock
+ * held.
+ */
+ void (*handle_command)(struct IPMIBmc *s,
+ uint8_t *cmd, unsigned int cmd_len,
+ unsigned int max_cmd_len,
+ uint8_t msg_id);
+} IPMIBmcClass;
+
+int ipmi_bmc_init(IPMIBmc *s);
+
+#ifdef IPMI_DEBUG
+#define ipmi_debug(fs, ...) \
+ fprintf(stderr, "IPMI (%s): " fs, __func__, ##__VA_ARGS__)
+#else
+#define ipmi_debug(fs, ...)
+#endif
+
+#endif
diff --git a/qemu-doc.texi b/qemu-doc.texi
index 35cabbc..7e3f175 100644
--- a/qemu-doc.texi
+++ b/qemu-doc.texi
@@ -195,6 +195,8 @@ PCI and ISA network adapters
@item
Serial ports
@item
+IPMI BMC, either and internal or external one
+@item
Creative SoundBlaster 16 sound card
@item
ENSONIQ AudioPCI ES1370 sound card
--
1.7.4.1
^ permalink raw reply related [flat|nested] 20+ messages in thread* [Qemu-devel] [PATCH 09/16] IPMI: Add a PC ISA type structure
2012-09-18 20:00 [Qemu-devel] [PATCH 00/16 v4] Add an IPMI device to qemu minyard
` (7 preceding siblings ...)
2012-09-18 20:00 ` [Qemu-devel] [PATCH 08/16] Add a base IPMI interface minyard
@ 2012-09-18 20:00 ` minyard
2012-09-18 20:00 ` [Qemu-devel] [PATCH 10/16] IPMI: Add a KCS low-level interface minyard
` (7 subsequent siblings)
16 siblings, 0 replies; 20+ messages in thread
From: minyard @ 2012-09-18 20:00 UTC (permalink / raw)
To: qemu-devel; +Cc: Corey Minyard
From: Corey Minyard <cminyard@mvista.com>
This provides the base infrastructure to tie IPMI low-level
interfaces into a PC ISA bus.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
---
default-configs/i386-softmmu.mak | 1 +
default-configs/x86_64-softmmu.mak | 1 +
hw/Makefile.objs | 1 +
hw/fw_cfg.h | 11 +++-
hw/isa_ipmi.c | 150 ++++++++++++++++++++++++++++++++++++
5 files changed, 163 insertions(+), 1 deletions(-)
create mode 100644 hw/isa_ipmi.c
diff --git a/default-configs/i386-softmmu.mak b/default-configs/i386-softmmu.mak
index eb17afc..c0aff0d 100644
--- a/default-configs/i386-softmmu.mak
+++ b/default-configs/i386-softmmu.mak
@@ -8,6 +8,7 @@ CONFIG_VGA_CIRRUS=y
CONFIG_VMWARE_VGA=y
CONFIG_VMMOUSE=y
CONFIG_IPMI=y
+CONFIG_ISA_IPMI=y
CONFIG_SERIAL=y
CONFIG_PARALLEL=y
CONFIG_I8254=y
diff --git a/default-configs/x86_64-softmmu.mak b/default-configs/x86_64-softmmu.mak
index e4e3e4f..615e4f2 100644
--- a/default-configs/x86_64-softmmu.mak
+++ b/default-configs/x86_64-softmmu.mak
@@ -8,6 +8,7 @@ CONFIG_VGA_CIRRUS=y
CONFIG_VMWARE_VGA=y
CONFIG_VMMOUSE=y
CONFIG_IPMI=y
+CONFIG_ISA_IPMI=y
CONFIG_SERIAL=y
CONFIG_PARALLEL=y
CONFIG_I8254=y
diff --git a/hw/Makefile.objs b/hw/Makefile.objs
index 4df7119..4a24b92 100644
--- a/hw/Makefile.objs
+++ b/hw/Makefile.objs
@@ -21,6 +21,7 @@ hw-obj-$(CONFIG_ESCC) += escc.o
hw-obj-$(CONFIG_EMPTY_SLOT) += empty_slot.o
hw-obj-$(CONFIG_IPMI) += ipmi.o
+hw-obj-$(CONFIG_ISA_IPMI) += isa_ipmi.o
hw-obj-$(CONFIG_SERIAL) += serial.o
hw-obj-$(CONFIG_PARALLEL) += parallel.o
diff --git a/hw/fw_cfg.h b/hw/fw_cfg.h
index 856bf91..05d7ccb 100644
--- a/hw/fw_cfg.h
+++ b/hw/fw_cfg.h
@@ -30,7 +30,16 @@
#define FW_CFG_FILE_FIRST 0x20
#define FW_CFG_FILE_SLOTS 0x10
-#define FW_CFG_MAX_ENTRY (FW_CFG_FILE_FIRST+FW_CFG_FILE_SLOTS)
+
+#define FW_CFG_IPMI_INTERFACE 0x30
+#define FW_CFG_IPMI_BASE_ADDR 0x31
+#define FW_CFG_IPMI_REG_SPACE 0x32
+#define FW_CFG_IPMI_REG_SPACING 0x33
+#define FW_CFG_IPMI_SLAVE_ADDR 0x34
+#define FW_CFG_IPMI_IRQ 0x35
+#define FW_CFG_IPMI_VERSION 0x36
+
+#define FW_CFG_MAX_ENTRY (FW_CFG_IPMI_VERSION + 1)
#define FW_CFG_WRITE_CHANNEL 0x4000
#define FW_CFG_ARCH_LOCAL 0x8000
diff --git a/hw/isa_ipmi.c b/hw/isa_ipmi.c
new file mode 100644
index 0000000..f8afbb9
--- /dev/null
+++ b/hw/isa_ipmi.c
@@ -0,0 +1,150 @@
+/*
+ * QEMU ISA IPMI emulation
+ *
+ * Copyright (c) 2012 Corey Minyard, MontaVista Software, LLC
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include "hw.h"
+#include "isa.h"
+#include "pc.h"
+#include "qemu-timer.h"
+#include "qemu-char.h"
+#include "sysemu.h"
+#include "ipmi.h"
+
+/* This is the type the user specifies on the -device command line */
+#define TYPE_ISA_IPMI "isa-ipmi"
+#define ISA_IPMI(obj) OBJECT_CHECK(ISAIPMIDevice, (obj), \
+ TYPE_ISA_IPMI)
+typedef struct ISAIPMIDevice {
+ ISADevice dev;
+ char *interface;
+ uint32_t iobase;
+ uint32_t isairq;
+ uint8_t slave_addr;
+ CharDriverState *chr;
+ IPMIInterface *intf;
+} ISAIPMIDevice;
+
+static int ipmi_isa_initfn(ISADevice *dev)
+{
+ ISAIPMIDevice *isa = ISA_IPMI(dev);
+ char typename[20];
+ Object *intfobj;
+ IPMIInterface *intf;
+ Object *bmcobj;
+ IPMIBmc *bmc;
+ int rc;
+ Error *errp = NULL;
+
+ if (!isa->interface) {
+ isa->interface = g_strdup("kcs");
+ }
+
+ if (isa->chr) {
+ bmcobj = object_new(TYPE_IPMI_BMC_EXTERN);
+ } else {
+ bmcobj = object_new(TYPE_IPMI_BMC_SIMULATOR);
+ }
+ bmc = IPMI_BMC(bmcobj);
+ bmc->chr = isa->chr;
+ snprintf(typename, sizeof(typename),
+ TYPE_IPMI_INTERFACE_PREFIX "%s", isa->interface);
+ intfobj = object_new(typename);
+ intf = IPMI_INTERFACE(intfobj);
+ bmc->intf = intf;
+ intf->bmc = bmc;
+ intf->io_base = isa->iobase;
+ intf->slave_addr = isa->slave_addr;
+ rc = ipmi_interface_init(intf);
+ if (rc) {
+ return rc;
+ }
+ rc = ipmi_bmc_init(bmc);
+ if (rc) {
+ return rc;
+ }
+
+ /* These may be set by the interface. */
+ isa->iobase = intf->io_base;
+ isa->slave_addr = intf->slave_addr;
+
+ if (isa->isairq != 0) {
+ isa_init_irq(dev, &intf->irq, isa->isairq);
+ intf->use_irq = 1;
+ }
+
+ isa->intf = intf;
+ object_property_add_child(OBJECT(isa), "intf", OBJECT(intf), &errp);
+ if (error_is_set(&errp)) {
+ fprintf(stderr, "%s\n", error_get_pretty(errp));
+ return 1;
+ }
+ object_property_add_child(OBJECT(isa), "bmc", OBJECT(bmc), &errp);
+ if (error_is_set(&errp)) {
+ fprintf(stderr, "%s\n", error_get_pretty(errp));
+ return 1;
+ }
+
+ qdev_set_legacy_instance_id(&dev->qdev, intf->io_base, intf->io_length);
+
+ isa_register_ioport(dev, &intf->io, intf->io_base);
+
+ return 0;
+}
+
+static void ipmi_isa_reset(DeviceState *qdev)
+{
+ ISAIPMIDevice *isa = ISA_IPMI(qdev);
+
+ ipmi_interface_reset(isa->intf);
+}
+
+static Property ipmi_isa_properties[] = {
+ DEFINE_PROP_STRING("interface", ISAIPMIDevice, interface),
+ DEFINE_PROP_HEX32("iobase", ISAIPMIDevice, iobase, 0),
+ DEFINE_PROP_UINT32("irq", ISAIPMIDevice, isairq, 5),
+ DEFINE_PROP_UINT8("slave_addr", ISAIPMIDevice, slave_addr, 0),
+ DEFINE_PROP_CHR("chardev", ISAIPMIDevice, chr),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void ipmi_isa_class_initfn(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ ISADeviceClass *ic = ISA_DEVICE_CLASS(klass);
+ ic->init = ipmi_isa_initfn;
+ dc->reset = ipmi_isa_reset;
+ dc->props = ipmi_isa_properties;
+}
+
+static const TypeInfo ipmi_isa_info = {
+ .name = TYPE_ISA_IPMI,
+ .parent = TYPE_ISA_DEVICE,
+ .instance_size = sizeof(ISAIPMIDevice),
+ .class_init = ipmi_isa_class_initfn,
+};
+
+static void ipmi_register_types(void)
+{
+ type_register_static(&ipmi_isa_info);
+}
+
+type_init(ipmi_register_types)
--
1.7.4.1
^ permalink raw reply related [flat|nested] 20+ messages in thread* [Qemu-devel] [PATCH 10/16] IPMI: Add a KCS low-level interface
2012-09-18 20:00 [Qemu-devel] [PATCH 00/16 v4] Add an IPMI device to qemu minyard
` (8 preceding siblings ...)
2012-09-18 20:00 ` [Qemu-devel] [PATCH 09/16] IPMI: Add a PC ISA type structure minyard
@ 2012-09-18 20:00 ` minyard
2012-09-18 20:00 ` [Qemu-devel] [PATCH 11/16] IPMI: Add a BT " minyard
` (6 subsequent siblings)
16 siblings, 0 replies; 20+ messages in thread
From: minyard @ 2012-09-18 20:00 UTC (permalink / raw)
To: qemu-devel; +Cc: Corey Minyard
From: Corey Minyard <cminyard@mvista.com>
This provides the simulation of the KCS hardware interface.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
---
default-configs/i386-softmmu.mak | 1 +
default-configs/x86_64-softmmu.mak | 1 +
hw/Makefile.objs | 1 +
hw/ipmi_kcs.c | 342 ++++++++++++++++++++++++++++++++++++
4 files changed, 345 insertions(+), 0 deletions(-)
create mode 100644 hw/ipmi_kcs.c
diff --git a/default-configs/i386-softmmu.mak b/default-configs/i386-softmmu.mak
index c0aff0d..b549389 100644
--- a/default-configs/i386-softmmu.mak
+++ b/default-configs/i386-softmmu.mak
@@ -9,6 +9,7 @@ CONFIG_VMWARE_VGA=y
CONFIG_VMMOUSE=y
CONFIG_IPMI=y
CONFIG_ISA_IPMI=y
+CONFIG_IPMI_KCS=y
CONFIG_SERIAL=y
CONFIG_PARALLEL=y
CONFIG_I8254=y
diff --git a/default-configs/x86_64-softmmu.mak b/default-configs/x86_64-softmmu.mak
index 615e4f2..af7d2a9 100644
--- a/default-configs/x86_64-softmmu.mak
+++ b/default-configs/x86_64-softmmu.mak
@@ -9,6 +9,7 @@ CONFIG_VMWARE_VGA=y
CONFIG_VMMOUSE=y
CONFIG_IPMI=y
CONFIG_ISA_IPMI=y
+CONFIG_IPMI_KCS=y
CONFIG_SERIAL=y
CONFIG_PARALLEL=y
CONFIG_I8254=y
diff --git a/hw/Makefile.objs b/hw/Makefile.objs
index 4a24b92..968f11c 100644
--- a/hw/Makefile.objs
+++ b/hw/Makefile.objs
@@ -22,6 +22,7 @@ hw-obj-$(CONFIG_EMPTY_SLOT) += empty_slot.o
hw-obj-$(CONFIG_IPMI) += ipmi.o
hw-obj-$(CONFIG_ISA_IPMI) += isa_ipmi.o
+hw-obj-$(CONFIG_IPMI_KCS) += ipmi_kcs.o
hw-obj-$(CONFIG_SERIAL) += serial.o
hw-obj-$(CONFIG_PARALLEL) += parallel.o
diff --git a/hw/ipmi_kcs.c b/hw/ipmi_kcs.c
new file mode 100644
index 0000000..ca934f6
--- /dev/null
+++ b/hw/ipmi_kcs.c
@@ -0,0 +1,342 @@
+/*
+ * QEMU IPMI KCS emulation
+ *
+ * Copyright (c) 2012 Corey Minyard, MontaVista Software, LLC
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include "hw.h"
+#include "ipmi.h"
+
+#define TYPE_IPMI_INTERFACE_KCS TYPE_IPMI_INTERFACE_PREFIX "kcs"
+#define IPMI_INTERFACE_KCS(obj) OBJECT_CHECK(IPMIKcsInterface, (obj), \
+ TYPE_IPMI_INTERFACE_KCS)
+
+#define IPMI_KCS_OBF_BIT 0
+#define IPMI_KCS_IBF_BIT 1
+#define IPMI_KCS_SMS_ATN_BIT 2
+#define IPMI_KCS_CD_BIT 3
+
+#define IPMI_KCS_OBF_MASK (1 << IPMI_KCS_OBF_BIT)
+#define IPMI_KCS_GET_OBF(d) (((d) >> IPMI_KCS_OBF_BIT) & 0x1)
+#define IPMI_KCS_SET_OBF(d, v) (d) = (((d) & ~IPMI_KCS_OBF_MASK) | \
+ (((v) & 1) << IPMI_KCS_OBF_BIT))
+#define IPMI_KCS_IBF_MASK (1 << IPMI_KCS_IBF_BIT)
+#define IPMI_KCS_GET_IBF(d) (((d) >> IPMI_KCS_IBF_BIT) & 0x1)
+#define IPMI_KCS_SET_IBF(d, v) (d) = (((d) & ~IPMI_KCS_IBF_MASK) | \
+ (((v) & 1) << IPMI_KCS_IBF_BIT))
+#define IPMI_KCS_SMS_ATN_MASK (1 << IPMI_KCS_SMS_ATN_BIT)
+#define IPMI_KCS_GET_SMS_ATN(d) (((d) >> IPMI_KCS_SMS_ATN_BIT) & 0x1)
+#define IPMI_KCS_SET_SMS_ATN(d, v) (d) = (((d) & ~IPMI_KCS_SMS_ATN_MASK) | \
+ (((v) & 1) << IPMI_KCS_SMS_ATN_BIT))
+#define IPMI_KCS_CD_MASK (1 << IPMI_KCS_CD_BIT)
+#define IPMI_KCS_GET_CD(d) (((d) >> IPMI_KCS_CD_BIT) & 0x1)
+#define IPMI_KCS_SET_CD(d, v) (d) = (((d) & ~IPMI_KCS_CD_MASK) | \
+ (((v) & 1) << IPMI_KCS_CD_BIT))
+
+#define IPMI_KCS_IDLE_STATE 0
+#define IPMI_KCS_READ_STATE 1
+#define IPMI_KCS_WRITE_STATE 2
+#define IPMI_KCS_ERROR_STATE 3
+
+#define IPMI_KCS_GET_STATE(d) (((d) >> 6) & 0x3)
+#define IPMI_KCS_SET_STATE(d, v) ((d) = ((d) & ~0xc0) | (((v) & 0x3) << 6))
+
+#define IPMI_KCS_ABORT_STATUS_CMD 0x60
+#define IPMI_KCS_WRITE_START_CMD 0x61
+#define IPMI_KCS_WRITE_END_CMD 0x62
+#define IPMI_KCS_READ_CMD 0x68
+
+#define IPMI_KCS_STATUS_NO_ERR 0x00
+#define IPMI_KCS_STATUS_ABORTED_ERR 0x01
+#define IPMI_KCS_STATUS_BAD_CC_ERR 0x02
+#define IPMI_KCS_STATUS_LENGTH_ERR 0x06
+
+typedef struct IPMIKcsInterface {
+ IPMIInterface intf;
+
+ uint8_t status_reg;
+ uint8_t data_out_reg;
+
+ int16_t data_in_reg; /* -1 means not written */
+ int16_t cmd_reg;
+
+ /*
+ * This is a response number that we send with the command to make
+ * sure that the response matches the command.
+ */
+ uint8_t waiting_rsp;
+} IPMIKcsInterface;
+
+#define SET_OBF() \
+ do { \
+ IPMI_KCS_SET_OBF(kcs->status_reg, 1); \
+ if (s->use_irq && s->irqs_enabled && !s->obf_irq_set) { \
+ s->obf_irq_set = 1; \
+ if (!s->atn_irq_set) { \
+ qemu_irq_raise(s->irq); \
+ } \
+ } \
+ } while (0)
+
+static void ipmi_kcs_handle_event(IPMIInterface *s)
+{
+ IPMIKcsInterface *kcs = IPMI_INTERFACE_KCS(s);
+
+ if (kcs->cmd_reg == IPMI_KCS_ABORT_STATUS_CMD) {
+ if (IPMI_KCS_GET_STATE(kcs->status_reg) != IPMI_KCS_ERROR_STATE) {
+ kcs->waiting_rsp++; /* Invalidate the message */
+ s->outmsg[0] = IPMI_KCS_STATUS_ABORTED_ERR;
+ s->outlen = 1;
+ s->outpos = 0;
+ IPMI_KCS_SET_STATE(kcs->status_reg, IPMI_KCS_ERROR_STATE);
+ SET_OBF();
+ }
+ goto out;
+ }
+
+ switch (IPMI_KCS_GET_STATE(kcs->status_reg)) {
+ case IPMI_KCS_IDLE_STATE:
+ if (kcs->cmd_reg == IPMI_KCS_WRITE_START_CMD) {
+ IPMI_KCS_SET_STATE(kcs->status_reg, IPMI_KCS_WRITE_STATE);
+ kcs->cmd_reg = -1;
+ s->write_end = 0;
+ s->inlen = 0;
+ SET_OBF();
+ }
+ break;
+
+ case IPMI_KCS_READ_STATE:
+ handle_read:
+ if (s->outpos >= s->outlen) {
+ IPMI_KCS_SET_STATE(kcs->status_reg, IPMI_KCS_IDLE_STATE);
+ SET_OBF();
+ } else if (kcs->data_in_reg == IPMI_KCS_READ_CMD) {
+ kcs->data_out_reg = s->outmsg[s->outpos];
+ s->outpos++;
+ SET_OBF();
+ } else {
+ s->outmsg[0] = IPMI_KCS_STATUS_BAD_CC_ERR;
+ s->outlen = 1;
+ s->outpos = 0;
+ IPMI_KCS_SET_STATE(kcs->status_reg, IPMI_KCS_ERROR_STATE);
+ SET_OBF();
+ goto out;
+ }
+ break;
+
+ case IPMI_KCS_WRITE_STATE:
+ if (kcs->data_in_reg != -1) {
+ /*
+ * Don't worry about input overrun here, that will be
+ * handled in the BMC.
+ */
+ if (s->inlen < sizeof(s->inmsg)) {
+ s->inmsg[s->inlen] = kcs->data_in_reg;
+ }
+ s->inlen++;
+ }
+ if (s->write_end) {
+ IPMIBmcClass *bk = IPMI_BMC_GET_CLASS(s->bmc);
+ s->outlen = 0;
+ s->write_end = 0;
+ s->outpos = 0;
+ bk->handle_command(s->bmc, s->inmsg, s->inlen, sizeof(s->inmsg),
+ kcs->waiting_rsp);
+ goto out_noibf;
+ } else if (kcs->cmd_reg == IPMI_KCS_WRITE_END_CMD) {
+ kcs->cmd_reg = -1;
+ s->write_end = 1;
+ }
+ SET_OBF();
+ break;
+
+ case IPMI_KCS_ERROR_STATE:
+ if (kcs->data_in_reg != -1) {
+ IPMI_KCS_SET_STATE(kcs->status_reg, IPMI_KCS_READ_STATE);
+ kcs->data_in_reg = IPMI_KCS_READ_CMD;
+ goto handle_read;
+ }
+ break;
+ }
+
+ if (kcs->cmd_reg != -1) {
+ /* Got an invalid command */
+ s->outmsg[0] = IPMI_KCS_STATUS_BAD_CC_ERR;
+ s->outlen = 1;
+ s->outpos = 0;
+ IPMI_KCS_SET_STATE(kcs->status_reg, IPMI_KCS_ERROR_STATE);
+ }
+
+ out:
+ kcs->cmd_reg = -1;
+ kcs->data_in_reg = -1;
+ IPMI_KCS_SET_IBF(kcs->status_reg, 0);
+ out_noibf:
+ return;
+}
+
+static void ipmi_kcs_handle_rsp(IPMIInterface *s, uint8_t msg_id,
+ unsigned char *rsp, unsigned int rsp_len)
+{
+ IPMIKcsInterface *kcs = IPMI_INTERFACE_KCS(s);
+
+ /* ipmi_lock is already claimed. */
+ if (kcs->waiting_rsp == msg_id) {
+ kcs->waiting_rsp++;
+ if (rsp_len > sizeof(s->outmsg)) {
+ s->outmsg[0] = rsp[0];
+ s->outmsg[1] = rsp[1];
+ s->outmsg[2] = IPMI_CC_CANNOT_RETURN_REQ_NUM_BYTES;
+ s->outlen = 3;
+ } else {
+ memcpy(s->outmsg, rsp, rsp_len);
+ s->outlen = rsp_len;
+ }
+ IPMI_KCS_SET_STATE(kcs->status_reg, IPMI_KCS_READ_STATE);
+ kcs->data_in_reg = IPMI_KCS_READ_CMD;
+ ipmi_signal(&kcs->intf);
+ }
+}
+
+
+static uint32_t ipmi_kcs_ioport_read(void *opaque, uint32_t addr)
+{
+ IPMIKcsInterface *kcs = opaque;
+ uint32_t ret;
+
+ ipmi_lock(&kcs->intf);
+ switch (addr & 1) {
+ case 0:
+ ret = kcs->data_out_reg;
+ IPMI_KCS_SET_OBF(kcs->status_reg, 0);
+ if (kcs->intf.obf_irq_set) {
+ kcs->intf.obf_irq_set = 0;
+ if (!kcs->intf.atn_irq_set) {
+ qemu_irq_lower(kcs->intf.irq);
+ }
+ }
+ break;
+ case 1:
+ ret = kcs->status_reg;
+ if (kcs->intf.atn_irq_set) {
+ kcs->intf.atn_irq_set = 0;
+ if (!kcs->intf.obf_irq_set) {
+ qemu_irq_lower(kcs->intf.irq);
+ }
+ }
+ break;
+ }
+ ipmi_unlock(&kcs->intf);
+ return ret;
+}
+
+static void ipmi_kcs_ioport_write(void *opaque, uint32_t addr, uint32_t val)
+{
+ IPMIKcsInterface *kcs = opaque;
+ IPMIInterface *s = &kcs->intf;
+
+ if (IPMI_KCS_GET_IBF(kcs->status_reg)) {
+ return;
+ }
+
+ ipmi_lock(s);
+ switch (addr & 1) {
+ case 0:
+ kcs->data_in_reg = val;
+ break;
+
+ case 1:
+ kcs->cmd_reg = val;
+ break;
+ }
+ IPMI_KCS_SET_IBF(kcs->status_reg, 1);
+ ipmi_signal(s);
+ ipmi_unlock(s);
+}
+
+static const MemoryRegionPortio ipmi_kcs_portio[] = {
+ { 0, 2, 1, .read = ipmi_kcs_ioport_read, .write = ipmi_kcs_ioport_write },
+ PORTIO_END_OF_LIST()
+};
+
+static const MemoryRegionOps ipmi_kcs_io_ops = {
+ .old_portio = ipmi_kcs_portio
+};
+
+static void ipmi_kcs_set_atn(IPMIInterface *s, int val, int irq)
+{
+ IPMIKcsInterface *kcs = IPMI_INTERFACE_KCS(s);
+
+ IPMI_KCS_SET_SMS_ATN(kcs->status_reg, val);
+ if (val) {
+ if (irq && !s->atn_irq_set && s->use_irq && s->irqs_enabled) {
+ s->atn_irq_set = 1;
+ if (!s->obf_irq_set) {
+ qemu_irq_raise(s->irq);
+ }
+ }
+ } else {
+ if (s->atn_irq_set) {
+ s->atn_irq_set = 0;
+ if (!s->obf_irq_set) {
+ qemu_irq_lower(s->irq);
+ }
+ }
+ }
+}
+
+static int ipmi_kcs_init(IPMIInterface *s)
+{
+ IPMIKcsInterface *kcs = IPMI_INTERFACE_KCS(s);
+
+ if (!s->io_base) {
+ s->io_base = 0xca2;
+ }
+ s->io_length = 2;
+
+ memory_region_init_io(&s->io, &ipmi_kcs_io_ops, kcs, "ipmi-kcs", 2);
+
+ return 0;
+}
+
+static void ipmi_kcs_class_init(ObjectClass *class, void *data)
+{
+ IPMIInterfaceClass *k = IPMI_INTERFACE_CLASS(class);
+
+ k->init = ipmi_kcs_init;
+ k->smbios_type = IPMI_SMBIOS_KCS;
+ k->set_atn = ipmi_kcs_set_atn;
+ k->handle_rsp = ipmi_kcs_handle_rsp;
+ k->handle_if_event = ipmi_kcs_handle_event;
+}
+
+static const TypeInfo ipmi_kcs_type = {
+ .name = TYPE_IPMI_INTERFACE_KCS,
+ .parent = TYPE_IPMI_INTERFACE,
+ .instance_size = sizeof(IPMIKcsInterface),
+ .class_init = ipmi_kcs_class_init,
+};
+
+static void ipmi_kcs_register_types(void)
+{
+ type_register_static(&ipmi_kcs_type);
+}
+
+type_init(ipmi_kcs_register_types)
--
1.7.4.1
^ permalink raw reply related [flat|nested] 20+ messages in thread* [Qemu-devel] [PATCH 11/16] IPMI: Add a BT low-level interface
2012-09-18 20:00 [Qemu-devel] [PATCH 00/16 v4] Add an IPMI device to qemu minyard
` (9 preceding siblings ...)
2012-09-18 20:00 ` [Qemu-devel] [PATCH 10/16] IPMI: Add a KCS low-level interface minyard
@ 2012-09-18 20:00 ` minyard
2012-09-18 20:00 ` [Qemu-devel] [PATCH 12/16] IPMI: Add a local BMC simulation minyard
` (5 subsequent siblings)
16 siblings, 0 replies; 20+ messages in thread
From: minyard @ 2012-09-18 20:00 UTC (permalink / raw)
To: qemu-devel; +Cc: Corey Minyard
From: Corey Minyard <cminyard@mvista.com>
This provides the simulation of the BT hardware interface for
IPMI.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
---
default-configs/i386-softmmu.mak | 1 +
default-configs/x86_64-softmmu.mak | 1 +
hw/Makefile.objs | 1 +
hw/ipmi_bt.c | 365 ++++++++++++++++++++++++++++++++++++
4 files changed, 368 insertions(+), 0 deletions(-)
create mode 100644 hw/ipmi_bt.c
diff --git a/default-configs/i386-softmmu.mak b/default-configs/i386-softmmu.mak
index b549389..f8f8e6d 100644
--- a/default-configs/i386-softmmu.mak
+++ b/default-configs/i386-softmmu.mak
@@ -10,6 +10,7 @@ CONFIG_VMMOUSE=y
CONFIG_IPMI=y
CONFIG_ISA_IPMI=y
CONFIG_IPMI_KCS=y
+CONFIG_IPMI_BT=y
CONFIG_SERIAL=y
CONFIG_PARALLEL=y
CONFIG_I8254=y
diff --git a/default-configs/x86_64-softmmu.mak b/default-configs/x86_64-softmmu.mak
index af7d2a9..8c1177d 100644
--- a/default-configs/x86_64-softmmu.mak
+++ b/default-configs/x86_64-softmmu.mak
@@ -10,6 +10,7 @@ CONFIG_VMMOUSE=y
CONFIG_IPMI=y
CONFIG_ISA_IPMI=y
CONFIG_IPMI_KCS=y
+CONFIG_IPMI_BT=y
CONFIG_SERIAL=y
CONFIG_PARALLEL=y
CONFIG_I8254=y
diff --git a/hw/Makefile.objs b/hw/Makefile.objs
index 968f11c..7dbfaee 100644
--- a/hw/Makefile.objs
+++ b/hw/Makefile.objs
@@ -23,6 +23,7 @@ hw-obj-$(CONFIG_EMPTY_SLOT) += empty_slot.o
hw-obj-$(CONFIG_IPMI) += ipmi.o
hw-obj-$(CONFIG_ISA_IPMI) += isa_ipmi.o
hw-obj-$(CONFIG_IPMI_KCS) += ipmi_kcs.o
+hw-obj-$(CONFIG_IPMI_BT) += ipmi_bt.o
hw-obj-$(CONFIG_SERIAL) += serial.o
hw-obj-$(CONFIG_PARALLEL) += parallel.o
diff --git a/hw/ipmi_bt.c b/hw/ipmi_bt.c
new file mode 100644
index 0000000..d068db0
--- /dev/null
+++ b/hw/ipmi_bt.c
@@ -0,0 +1,365 @@
+/*
+ * QEMU IPMI BT emulation
+ *
+ * Copyright (c) 2012 Corey Minyard, MontaVista Software, LLC
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include "hw.h"
+#include "ipmi.h"
+
+#define TYPE_IPMI_INTERFACE_BT TYPE_IPMI_INTERFACE_PREFIX "bt"
+#define IPMI_INTERFACE_BT(obj) OBJECT_CHECK(IPMIBtInterface, (obj), \
+ TYPE_IPMI_INTERFACE_BT)
+
+/* Control register */
+#define IPMI_BT_CLR_WR_BIT 0
+#define IPMI_BT_CLR_RD_BIT 1
+#define IPMI_BT_H2B_ATN_BIT 2
+#define IPMI_BT_B2H_ATN_BIT 3
+#define IPMI_BT_SMS_ATN_BIT 4
+#define IPMI_BT_HBUSY_BIT 6
+#define IPMI_BT_BBUSY_BIT 7
+
+#define IPMI_BT_CLR_WR_MASK (1 << IPMI_BT_CLR_WR_BIT)
+#define IPMI_BT_GET_CLR_WR(d) (((d) >> IPMI_BT_CLR_WR_BIT) & 0x1)
+#define IPMI_BT_SET_CLR_WR(d, v) (d) = (((d) & ~IPMI_BT_CLR_WR_MASK) | \
+ (((v & 1) << IPMI_BT_CLR_WR_BIT)))
+
+#define IPMI_BT_CLR_RD_MASK (1 << IPMI_BT_CLR_RD_BIT)
+#define IPMI_BT_GET_CLR_RD(d) (((d) >> IPMI_BT_CLR_RD_BIT) & 0x1)
+#define IPMI_BT_SET_CLR_RD(d, v) (d) = (((d) & ~IPMI_BT_CLR_RD_MASK) | \
+ (((v & 1) << IPMI_BT_CLR_RD_BIT)))
+
+#define IPMI_BT_H2B_ATN_MASK (1 << IPMI_BT_H2B_ATN_BIT)
+#define IPMI_BT_GET_H2B_ATN(d) (((d) >> IPMI_BT_H2B_ATN_BIT) & 0x1)
+#define IPMI_BT_SET_H2B_ATN(d, v) (d) = (((d) & ~IPMI_BT_H2B_ATN_MASK) | \
+ (((v & 1) << IPMI_BT_H2B_ATN_BIT)))
+
+#define IPMI_BT_B2H_ATN_MASK (1 << IPMI_BT_B2H_ATN_BIT)
+#define IPMI_BT_GET_B2H_ATN(d) (((d) >> IPMI_BT_B2H_ATN_BIT) & 0x1)
+#define IPMI_BT_SET_B2H_ATN(d, v) (d) = (((d) & ~IPMI_BT_B2H_ATN_MASK) | \
+ (((v & 1) << IPMI_BT_B2H_ATN_BIT)))
+
+#define IPMI_BT_SMS_ATN_MASK (1 << IPMI_BT_SMS_ATN_BIT)
+#define IPMI_BT_GET_SMS_ATN(d) (((d) >> IPMI_BT_SMS_ATN_BIT) & 0x1)
+#define IPMI_BT_SET_SMS_ATN(d, v) (d) = (((d) & ~IPMI_BT_SMS_ATN_MASK) | \
+ (((v & 1) << IPMI_BT_SMS_ATN_BIT)))
+
+#define IPMI_BT_HBUSY_MASK (1 << IPMI_BT_HBUSY_BIT)
+#define IPMI_BT_GET_HBUSY(d) (((d) >> IPMI_BT_HBUSY_BIT) & 0x1)
+#define IPMI_BT_SET_HBUSY(d, v) (d) = (((d) & ~IPMI_BT_HBUSY_MASK) | \
+ (((v & 1) << IPMI_BT_HBUSY_BIT)))
+
+#define IPMI_BT_BBUSY_MASK (1 << IPMI_BT_BBUSY_BIT)
+#define IPMI_BT_GET_BBUSY(d) (((d) >> IPMI_BT_BBUSY_BIT) & 0x1)
+#define IPMI_BT_SET_BBUSY(d, v) (d) = (((d) & ~IPMI_BT_BBUSY_MASK) | \
+ (((v & 1) << IPMI_BT_BBUSY_BIT)))
+
+
+/* Mask register */
+#define IPMI_BT_B2H_IRQ_EN_BIT 0
+#define IPMI_BT_B2H_IRQ_BIT 1
+
+#define IPMI_BT_B2H_IRQ_EN_MASK (1 << IPMI_BT_B2H_IRQ_EN_BIT)
+#define IPMI_BT_GET_B2H_IRQ_EN(d) (((d) >> IPMI_BT_B2H_IRQ_EN_BIT) & 0x1)
+#define IPMI_BT_SET_B2H_IRQ_EN(d, v) (d) = (((d) & ~IPMI_BT_B2H_IRQ_EN_MASK) | \
+ (((v & 1) << IPMI_BT_B2H_IRQ_EN_BIT)))
+
+#define IPMI_BT_B2H_IRQ_MASK (1 << IPMI_BT_B2H_IRQ_BIT)
+#define IPMI_BT_GET_B2H_IRQ(d) (((d) >> IPMI_BT_B2H_IRQ_BIT) & 0x1)
+#define IPMI_BT_SET_B2H_IRQ(d, v) (d) = (((d) & ~IPMI_BT_B2H_IRQ_MASK) | \
+ (((v & 1) << IPMI_BT_B2H_IRQ_BIT)))
+
+typedef struct IPMIBtInterface {
+ IPMIInterface intf;
+
+ uint8_t control_reg;
+ uint8_t mask_reg;
+
+ /*
+ * This is a response number that we send with the command to make
+ * sure that the response matches the command.
+ */
+ uint8_t waiting_rsp;
+ uint8_t waiting_seq;
+} IPMIBtInterface;
+
+#define IPMI_CMD_GET_BT_INTF_CAP 0x36
+
+static void ipmi_bt_handle_event(IPMIInterface *s)
+{
+ IPMIBtInterface *bt = IPMI_INTERFACE_BT(s);
+
+ ipmi_lock(s);
+ if (s->inlen < 4) {
+ goto out;
+ }
+ /* Note that overruns are handled by handle_command */
+ if (s->inmsg[0] != (s->inlen - 1)) {
+ /* Length mismatch, just ignore. */
+ IPMI_BT_SET_BBUSY(bt->control_reg, 1);
+ s->inlen = 0;
+ goto out;
+ }
+ if ((s->inmsg[1] == (IPMI_NETFN_APP << 2)) &&
+ (s->inmsg[3] == IPMI_CMD_GET_BT_INTF_CAP)) {
+ /* We handle this one ourselves. */
+ s->outmsg[0] = 9;
+ s->outmsg[1] = s->inmsg[1] | 0x04;
+ s->outmsg[2] = s->inmsg[2];
+ s->outmsg[3] = s->inmsg[3];
+ s->outmsg[4] = 0;
+ s->outmsg[5] = 1; /* Only support 1 outstanding request. */
+ if (sizeof(s->inmsg) > 0xff) { /* Input buffer size */
+ s->outmsg[6] = 0xff;
+ } else {
+ s->outmsg[6] = (unsigned char) sizeof(s->inmsg);
+ }
+ if (sizeof(s->outmsg) > 0xff) { /* Output buffer size */
+ s->outmsg[7] = 0xff;
+ } else {
+ s->outmsg[7] = (unsigned char) sizeof(s->outmsg);
+ }
+ s->outmsg[8] = 10; /* Max request to response time */
+ s->outmsg[9] = 0; /* Don't recommend retries */
+ s->outlen = 10;
+ IPMI_BT_SET_BBUSY(bt->control_reg, 0);
+ IPMI_BT_SET_B2H_ATN(bt->control_reg, 1);
+ if (s->use_irq && s->irqs_enabled &&
+ !IPMI_BT_GET_B2H_IRQ(bt->mask_reg) &&
+ IPMI_BT_GET_B2H_IRQ_EN(bt->mask_reg)) {
+ IPMI_BT_SET_B2H_IRQ(bt->mask_reg, 1);
+ qemu_irq_raise(s->irq);
+ }
+ goto out;
+ }
+ bt->waiting_seq = s->inmsg[2];
+ s->inmsg[2] = s->inmsg[1];
+ {
+ IPMIBmcClass *bk = IPMI_BMC_GET_CLASS(s->bmc);
+ bk->handle_command(s->bmc, s->inmsg + 2, s->inlen - 2, sizeof(s->inmsg),
+ bt->waiting_rsp);
+ }
+ out:
+ ipmi_unlock(s);
+}
+
+static void ipmi_bt_handle_rsp(IPMIInterface *s, uint8_t msg_id,
+ unsigned char *rsp, unsigned int rsp_len)
+{
+ IPMIBtInterface *bt = IPMI_INTERFACE_BT(s);
+
+ /* ipmi_lock is already claimed. */
+ if (bt->waiting_rsp == msg_id) {
+ bt->waiting_rsp++;
+ if (rsp_len > (sizeof(s->outmsg) - 2)) {
+ s->outmsg[0] = 4;
+ s->outmsg[1] = rsp[0];
+ s->outmsg[2] = bt->waiting_seq;
+ s->outmsg[3] = rsp[1];
+ s->outmsg[4] = IPMI_CC_CANNOT_RETURN_REQ_NUM_BYTES;
+ s->outlen = 5;
+ } else {
+ s->outmsg[0] = rsp_len + 1;
+ s->outmsg[1] = rsp[0];
+ s->outmsg[2] = bt->waiting_seq;
+ memcpy(s->outmsg + 3, rsp + 1, rsp_len - 1);
+ s->outlen = rsp_len + 2;
+ }
+ IPMI_BT_SET_BBUSY(bt->control_reg, 0);
+ IPMI_BT_SET_B2H_ATN(bt->control_reg, 1);
+ if (s->use_irq && s->irqs_enabled &&
+ !IPMI_BT_GET_B2H_IRQ(bt->mask_reg) &&
+ IPMI_BT_GET_B2H_IRQ_EN(bt->mask_reg)) {
+ IPMI_BT_SET_B2H_IRQ(bt->mask_reg, 1);
+ qemu_irq_raise(s->irq);
+ }
+ }
+}
+
+
+static uint32_t ipmi_bt_ioport_read(void *opaque, uint32_t addr)
+{
+ IPMIBtInterface *bt = opaque;
+ IPMIInterface *s = &bt->intf;
+ uint32_t ret = 0xff;
+
+ ipmi_lock(s);
+ switch (addr & 3) {
+ case 0:
+ ret = bt->control_reg;
+ break;
+ case 1:
+ if (s->outpos < s->outlen) {
+ ret = s->outmsg[s->outpos];
+ s->outpos++;
+ if (s->outpos == s->outlen) {
+ s->outpos = 0;
+ s->outlen = 0;
+ }
+ } else {
+ ret = 0xff;
+ }
+ break;
+ case 2:
+ ret = bt->mask_reg;
+ break;
+ }
+ ipmi_unlock(s);
+ return ret;
+}
+
+static void ipmi_bt_ioport_write(void *opaque, uint32_t addr, uint32_t val)
+{
+ IPMIBtInterface *bt = opaque;
+ IPMIInterface *s = &bt->intf;
+
+ ipmi_lock(s);
+ switch (addr & 3) {
+ case 0:
+ if (IPMI_BT_GET_CLR_WR(val)) {
+ s->inlen = 0;
+ }
+ if (IPMI_BT_GET_CLR_RD(val)) {
+ s->outpos = 0;
+ }
+ if (IPMI_BT_GET_B2H_ATN(val)) {
+ IPMI_BT_SET_B2H_ATN(bt->control_reg, 0);
+ }
+ if (IPMI_BT_GET_SMS_ATN(val)) {
+ IPMI_BT_SET_SMS_ATN(bt->control_reg, 0);
+ }
+ if (IPMI_BT_GET_HBUSY(val)) {
+ /* Toggle */
+ IPMI_BT_SET_HBUSY(bt->control_reg,
+ !IPMI_BT_GET_HBUSY(bt->control_reg));
+ }
+ if (IPMI_BT_GET_H2B_ATN(val)) {
+ IPMI_BT_SET_BBUSY(bt->control_reg, 1);
+ ipmi_signal(s);
+ }
+ break;
+
+ case 1:
+ if (s->inlen < sizeof(s->inmsg)) {
+ s->inmsg[s->inlen] = val;
+ }
+ s->inlen++;
+ break;
+
+ case 2:
+ if (IPMI_BT_GET_B2H_IRQ_EN(val) !=
+ IPMI_BT_GET_B2H_IRQ_EN(bt->mask_reg)) {
+ if (IPMI_BT_GET_B2H_IRQ_EN(val)) {
+ if (IPMI_BT_GET_B2H_ATN(bt->control_reg) ||
+ IPMI_BT_GET_SMS_ATN(bt->control_reg)) {
+ IPMI_BT_SET_B2H_IRQ(bt->mask_reg, 1);
+ qemu_irq_raise(s->irq);
+ }
+ IPMI_BT_SET_B2H_IRQ_EN(bt->mask_reg, 1);
+ } else {
+ if (IPMI_BT_GET_B2H_IRQ(bt->mask_reg)) {
+ IPMI_BT_SET_B2H_IRQ(bt->mask_reg, 0);
+ qemu_irq_lower(s->irq);
+ }
+ IPMI_BT_SET_B2H_IRQ_EN(bt->mask_reg, 0);
+ }
+ }
+ if (IPMI_BT_GET_B2H_IRQ(val) && IPMI_BT_GET_B2H_IRQ(bt->mask_reg)) {
+ IPMI_BT_SET_B2H_IRQ(bt->mask_reg, 0);
+ qemu_irq_lower(s->irq);
+ }
+ break;
+ }
+ ipmi_unlock(s);
+}
+
+static const MemoryRegionPortio ipmi_bt_portio[] = {
+ { 0, 3, 1, .read = ipmi_bt_ioport_read, .write = ipmi_bt_ioport_write },
+ PORTIO_END_OF_LIST()
+};
+
+static const MemoryRegionOps ipmi_bt_io_ops = {
+ .old_portio = ipmi_bt_portio
+};
+
+static void ipmi_bt_set_atn(IPMIInterface *s, int val, int irq)
+{
+ IPMIBtInterface *bt = IPMI_INTERFACE_BT(s);
+
+ if (!!val == IPMI_BT_GET_SMS_ATN(bt->control_reg)) {
+ return;
+ }
+
+ IPMI_BT_SET_SMS_ATN(bt->control_reg, val);
+ if (val) {
+ if (irq && s->use_irq && s->irqs_enabled &&
+ !IPMI_BT_GET_B2H_ATN(bt->control_reg) &&
+ IPMI_BT_GET_B2H_IRQ_EN(bt->mask_reg)) {
+ IPMI_BT_SET_B2H_IRQ(bt->mask_reg, 1);
+ qemu_irq_raise(s->irq);
+ }
+ } else {
+ if (!IPMI_BT_GET_B2H_ATN(bt->control_reg) &&
+ IPMI_BT_GET_B2H_IRQ(bt->mask_reg)) {
+ IPMI_BT_SET_B2H_IRQ(bt->mask_reg, 0);
+ qemu_irq_lower(s->irq);
+ }
+ }
+}
+
+static int ipmi_bt_init(IPMIInterface *s)
+{
+ IPMIBtInterface *bt = IPMI_INTERFACE_BT(s);
+
+ if (!s->io_base) {
+ s->io_base = 0xe4;
+ }
+ s->io_length = 3;
+
+ memory_region_init_io(&s->io, &ipmi_bt_io_ops, bt, "ipmi-bt", 3);
+
+ return 0;
+}
+
+static void ipmi_bt_class_init(ObjectClass *klass, void *data)
+{
+ IPMIInterfaceClass *k = IPMI_INTERFACE_CLASS(klass);
+
+ k->init = ipmi_bt_init;
+ k->smbios_type = IPMI_SMBIOS_BT;
+ k->set_atn = ipmi_bt_set_atn;
+ k->handle_rsp = ipmi_bt_handle_rsp;
+ k->handle_if_event = ipmi_bt_handle_event;
+}
+
+static const TypeInfo ipmi_bt_type = {
+ .name = TYPE_IPMI_INTERFACE_BT,
+ .parent = TYPE_IPMI_INTERFACE,
+ .instance_size = sizeof(IPMIBtInterface),
+ .class_init = ipmi_bt_class_init,
+};
+
+static void ipmi_bt_register_types(void)
+{
+ type_register_static(&ipmi_bt_type);
+}
+
+type_init(ipmi_bt_register_types)
--
1.7.4.1
^ permalink raw reply related [flat|nested] 20+ messages in thread* [Qemu-devel] [PATCH 12/16] IPMI: Add a local BMC simulation
2012-09-18 20:00 [Qemu-devel] [PATCH 00/16 v4] Add an IPMI device to qemu minyard
` (10 preceding siblings ...)
2012-09-18 20:00 ` [Qemu-devel] [PATCH 11/16] IPMI: Add a BT " minyard
@ 2012-09-18 20:00 ` minyard
2012-09-18 20:00 ` [Qemu-devel] [PATCH 13/16] IPMI: Add an external connection simulation interface minyard
` (4 subsequent siblings)
16 siblings, 0 replies; 20+ messages in thread
From: minyard @ 2012-09-18 20:00 UTC (permalink / raw)
To: qemu-devel; +Cc: Corey Minyard
From: Corey Minyard <cminyard@mvista.com>
This provides a minimal local BMC, basically enough to comply with the
spec and provide a complete watchdog timer (including a sensor, SDR,
and event).
Signed-off-by: Corey Minyard <cminyard@mvista.com>
---
default-configs/i386-softmmu.mak | 1 +
default-configs/x86_64-softmmu.mak | 1 +
hw/Makefile.objs | 1 +
hw/ipmi_sim.c | 1551 ++++++++++++++++++++++++++++++++++++
4 files changed, 1554 insertions(+), 0 deletions(-)
create mode 100644 hw/ipmi_sim.c
diff --git a/default-configs/i386-softmmu.mak b/default-configs/i386-softmmu.mak
index f8f8e6d..8c99d5d 100644
--- a/default-configs/i386-softmmu.mak
+++ b/default-configs/i386-softmmu.mak
@@ -11,6 +11,7 @@ CONFIG_IPMI=y
CONFIG_ISA_IPMI=y
CONFIG_IPMI_KCS=y
CONFIG_IPMI_BT=y
+CONFIG_IPMI_LOCAL=y
CONFIG_SERIAL=y
CONFIG_PARALLEL=y
CONFIG_I8254=y
diff --git a/default-configs/x86_64-softmmu.mak b/default-configs/x86_64-softmmu.mak
index 8c1177d..4d01883 100644
--- a/default-configs/x86_64-softmmu.mak
+++ b/default-configs/x86_64-softmmu.mak
@@ -11,6 +11,7 @@ CONFIG_IPMI=y
CONFIG_ISA_IPMI=y
CONFIG_IPMI_KCS=y
CONFIG_IPMI_BT=y
+CONFIG_IPMI_LOCAL=y
CONFIG_SERIAL=y
CONFIG_PARALLEL=y
CONFIG_I8254=y
diff --git a/hw/Makefile.objs b/hw/Makefile.objs
index 7dbfaee..65f0ea1 100644
--- a/hw/Makefile.objs
+++ b/hw/Makefile.objs
@@ -24,6 +24,7 @@ hw-obj-$(CONFIG_IPMI) += ipmi.o
hw-obj-$(CONFIG_ISA_IPMI) += isa_ipmi.o
hw-obj-$(CONFIG_IPMI_KCS) += ipmi_kcs.o
hw-obj-$(CONFIG_IPMI_BT) += ipmi_bt.o
+hw-obj-$(CONFIG_IPMI_LOCAL) += ipmi_sim.o
hw-obj-$(CONFIG_SERIAL) += serial.o
hw-obj-$(CONFIG_PARALLEL) += parallel.o
diff --git a/hw/ipmi_sim.c b/hw/ipmi_sim.c
new file mode 100644
index 0000000..d41ac80
--- /dev/null
+++ b/hw/ipmi_sim.c
@@ -0,0 +1,1551 @@
+/*
+ * IPMI BMC emulation
+ *
+ * Copyright (c) 2012 Corey Minyard, MontaVista Software, LLC
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+#include "qemu-timer.h"
+#include "ipmi.h"
+
+#define IPMI_NETFN_CHASSIS 0x00
+#define IPMI_NETFN_CHASSIS_MAXCMD 0x03
+
+#define IPMI_CMD_GET_CHASSIS_CAPABILITIES 0x00
+#define IPMI_CMD_GET_CHASSIS_STATUS 0x01
+#define IPMI_CMD_CHASSIS_CONTROL 0x02
+
+#define IPMI_NETFN_SENSOR_EVENT 0x04
+#define IPMI_NETFN_SENSOR_EVENT_MAXCMD 0x2e
+
+#define IPMI_CMD_SET_SENSOR_EVT_ENABLE 0x28
+#define IPMI_CMD_GET_SENSOR_EVT_ENABLE 0x29
+#define IPMI_CMD_REARM_SENSOR_EVTS 0x2a
+#define IPMI_CMD_GET_SENSOR_EVT_STATUS 0x2b
+#define IPMI_CMD_GET_SENSOR_READING 0x2d
+
+/* #define IPMI_NETFN_APP 0x06 In ipmi.h */
+#define IPMI_NETFN_APP_MAXCMD 0x36
+
+#define IPMI_CMD_GET_DEVICE_ID 0x01
+#define IPMI_CMD_RESET_WATCHDOG_TIMER 0x22
+#define IPMI_CMD_SET_WATCHDOG_TIMER 0x24
+#define IPMI_CMD_GET_WATCHDOG_TIMER 0x25
+#define IPMI_CMD_SET_BMC_GLOBAL_ENABLES 0x2e
+#define IPMI_CMD_GET_BMC_GLOBAL_ENABLES 0x2f
+#define IPMI_CMD_CLR_MSG_FLAGS 0x30
+#define IPMI_CMD_GET_MSG_FLAGS 0x31
+#define IPMI_CMD_READ_EVT_MSG_BUF 0x35
+
+#define IPMI_NETFN_STORAGE 0x0a
+#define IPMI_NETFN_STORAGE_MAXCMD 0x4a
+
+#define IPMI_CMD_GET_SDR_REP_INFO 0x20
+#define IPMI_CMD_GET_SDR_REP_ALLOC_INFO 0x21
+#define IPMI_CMD_RESERVE_SDR_REP 0x22
+#define IPMI_CMD_GET_SDR 0x23
+#define IPMI_CMD_ADD_SDR 0x24
+#define IPMI_CMD_PARTIAL_ADD_SDR 0x25
+#define IPMI_CMD_DELETE_SDR 0x26
+#define IPMI_CMD_CLEAR_SDR_REP 0x27
+#define IPMI_CMD_GET_SDR_REP_TIME 0x28
+#define IPMI_CMD_SET_SDR_REP_TIME 0x29
+#define IPMI_CMD_ENTER_SDR_REP_UPD_MODE 0x2A
+#define IPMI_CMD_EXIT_SDR_REP_UPD_MODE 0x2B
+#define IPMI_CMD_RUN_INIT_AGENT 0x2C
+#define IPMI_CMD_GET_SEL_INFO 0x40
+#define IPMI_CMD_GET_SEL_ALLOC_INFO 0x41
+#define IPMI_CMD_RESERVE_SEL 0x42
+#define IPMI_CMD_GET_SEL_ENTRY 0x43
+#define IPMI_CMD_ADD_SEL_ENTRY 0x44
+#define IPMI_CMD_PARTIAL_ADD_SEL_ENTRY 0x45
+#define IPMI_CMD_DELETE_SEL_ENTRY 0x46
+#define IPMI_CMD_CLEAR_SEL 0x47
+#define IPMI_CMD_GET_SEL_TIME 0x48
+#define IPMI_CMD_SET_SEL_TIME 0x49
+
+
+/* Same as a timespec struct. */
+struct ipmi_time {
+ long tv_sec;
+ long tv_nsec;
+};
+
+#define MAX_SEL_SIZE 128
+
+typedef struct IPMISel {
+ uint8_t sel[MAX_SEL_SIZE][16];
+ unsigned int next_free;
+ long time_offset;
+ uint16_t reservation;
+ uint8_t last_addition[4];
+ uint8_t last_clear[4];
+ uint8_t overflow;
+} IPMISel;
+
+#define MAX_SDR_SIZE 16384
+
+typedef struct IPMISdr {
+ uint8_t sdr[MAX_SDR_SIZE];
+ unsigned int next_free;
+ uint16_t next_rec_id;
+ uint16_t reservation;
+ uint8_t last_addition[4];
+ uint8_t last_clear[4];
+ uint8_t overflow;
+} IPMISdr;
+
+typedef struct IPMISensor {
+ uint8_t status;
+ uint8_t reading;
+ uint16_t states_suppt;
+ uint16_t assert_suppt;
+ uint16_t deassert_suppt;
+ uint16_t states;
+ uint16_t assert_states;
+ uint16_t deassert_states;
+ uint16_t assert_enable;
+ uint16_t deassert_enable;
+ uint8_t sensor_type;
+ uint8_t evt_reading_type_code;
+} IPMISensor;
+#define IPMI_SENSOR_GET_PRESENT(s) ((s)->status & 0x01)
+#define IPMI_SENSOR_SET_PRESENT(s, v) ((s)->status = (s->status & ~0x01) | \
+ !!(v))
+#define IPMI_SENSOR_GET_SCAN_ON(s) ((s)->status & 0x40)
+#define IPMI_SENSOR_SET_SCAN_ON(s, v) ((s)->status = (s->status & ~0x40) | \
+ ((!!(v)) << 6))
+#define IPMI_SENSOR_GET_EVENTS_ON(s) ((s)->status & 0x80)
+#define IPMI_SENSOR_SET_EVENTS_ON(s, v) ((s)->status = (s->status & ~0x80) | \
+ ((!!(v)) << 7))
+#define IPMI_SENSOR_GET_RET_STATUS(s) ((s)->status & 0xc0)
+#define IPMI_SENSOR_SET_RET_STATUS(s, v) ((s)->status = (s->status & ~0xc0) | \
+ (v & 0xc0))
+#define IPMI_SENSOR_IS_DISCRETE(s) ((s)->evt_reading_type_code != 1)
+
+#define MAX_SENSORS 20
+#define IPMI_WATCHDOG_SENSOR 0
+
+typedef struct IPMISimBmc IPMISimBmc;
+
+#define MAX_NETFNS 64
+typedef void (*IPMICmdHandler)(IPMISimBmc *s,
+ uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len,
+ unsigned int max_rsp_len);
+typedef struct IPMINetfn {
+ unsigned int cmd_nums;
+ const IPMICmdHandler *cmd_handlers;
+} IPMINetfn;
+
+#define IPMI_BMC_SIMULATOR(obj) OBJECT_CHECK(IPMISimBmc, (obj), \
+ TYPE_IPMI_BMC_SIMULATOR)
+struct IPMISimBmc {
+ IPMIBmc parent;
+
+ QEMUTimer *timer;
+
+ uint8_t bmc_global_enables;
+ uint8_t msg_flags;
+
+ bool watchdog_initialized;
+ uint8_t watchdog_use;
+ uint8_t watchdog_action;
+ uint8_t watchdog_pretimeout; /* In seconds */
+ bool watchdog_expired;
+ uint16_t watchdog_timeout; /* in 100's of milliseconds */
+
+ bool watchdog_running;
+ bool watchdog_preaction_ran;
+ int64_t watchdog_expiry;
+
+ uint8_t device_id;
+ uint8_t ipmi_version;
+ uint8_t device_rev;
+ uint8_t fwrev1;
+ uint8_t fwrev2;
+ uint8_t mfg_id[3];
+ uint8_t product_id[2];
+
+ IPMISel sel;
+ IPMISdr sdr;
+ IPMISensor sensors[MAX_SENSORS];
+
+ /* Odd netfns are for responses, so we only need the even ones. */
+ const IPMINetfn * netfns[MAX_NETFNS / 2];
+
+ /* We allow one event in the buffer */
+ uint8_t evtbuf[16];
+};
+
+#define IPMI_BMC_MSG_FLAG_WATCHDOG_TIMEOUT_MASK (1 << 3)
+#define IPMI_BMC_MSG_FLAG_EVT_BUF_FULL (1 << 1)
+#define IPMI_BMC_MSG_FLAG_RCV_MSG_QUEUE (1 << 0)
+#define IPMI_BMC_MSG_FLAG_WATCHDOG_TIMEOUT_MASK_SET(s) \
+ (IPMI_BMC_MSG_FLAG_WATCHDOG_TIMEOUT_MASK & (s)->msg_flags)
+#define IPMI_BMC_MSG_FLAG_EVT_BUF_FULL_SET(s) \
+ (IPMI_BMC_MSG_FLAG_EVT_BUF_FULL & (s)->msg_flags)
+#define IPMI_BMC_MSG_FLAG_RCV_MSG_QUEUE_SET(s) \
+ (IPMI_BMC_MSG_FLAG_RCV_MSG_QUEUE & (s)->msg_flags)
+
+#define IPMI_BMC_RCV_MSG_QUEUE_INT_BIT 0
+#define IPMI_BMC_EVBUF_FULL_INT_BIT 1
+#define IPMI_BMC_EVENT_MSG_BUF_BIT 2
+#define IPMI_BMC_EVENT_LOG_BIT 3
+#define IPMI_BMC_MSG_INTS_ON(s) ((s)->bmc_global_enables & \
+ (1 << IPMI_BMC_RCV_MSG_QUEUE_INT_BIT))
+#define IPMI_BMC_EVBUF_FULL_INT_ENABLED(s) ((s)->bmc_global_enables & \
+ (1 << IPMI_BMC_EVBUF_FULL_INT_BIT))
+#define IPMI_BMC_EVENT_LOG_ENABLED(s) ((s)->bmc_global_enables & \
+ (1 << IPMI_BMC_EVENT_LOG_BIT))
+#define IPMI_BMC_EVENT_MSG_BUF_ENABLED(s) ((s)->bmc_global_enables & \
+ (1 << IPMI_BMC_EVENT_MSG_BUF_BIT))
+
+#define IPMI_BMC_WATCHDOG_USE_MASK 0xc7
+#define IPMI_BMC_WATCHDOG_ACTION_MASK 0x77
+#define IPMI_BMC_WATCHDOG_GET_USE(s) ((s)->watchdog_use & 0x7)
+#define IPMI_BMC_WATCHDOG_GET_DONT_LOG(s) (((s)->watchdog_use >> 7) & 0x1)
+#define IPMI_BMC_WATCHDOG_GET_DONT_STOP(s) (((s)->watchdog_use >> 6) & 0x1)
+#define IPMI_BMC_WATCHDOG_GET_PRE_ACTION(s) (((s)->watchdog_action >> 4) & 0x7)
+#define IPMI_BMC_WATCHDOG_PRE_NONE 0
+#define IPMI_BMC_WATCHDOG_PRE_SMI 1
+#define IPMI_BMC_WATCHDOG_PRE_NMI 2
+#define IPMI_BMC_WATCHDOG_PRE_MSG_INT 3
+#define IPMI_BMC_WATCHDOG_GET_ACTION(s) ((s)->watchdog_action & 0x7)
+#define IPMI_BMC_WATCHDOG_ACTION_NONE 0
+#define IPMI_BMC_WATCHDOG_ACTION_RESET 1
+#define IPMI_BMC_WATCHDOG_ACTION_POWER_DOWN 2
+#define IPMI_BMC_WATCHDOG_ACTION_POWER_CYCLE 3
+
+
+/* Add a byte to the response. */
+#define IPMI_ADD_RSP_DATA(b) \
+ do { \
+ if (*rsp_len >= max_rsp_len) { \
+ rsp[2] = IPMI_CC_REQUEST_DATA_TRUNCATED; \
+ goto out; \
+ } \
+ rsp[(*rsp_len)++] = (b); \
+ } while (0)
+
+/* Verify that the received command is a certain length. */
+#define IPMI_CHECK_CMD_LEN(l) \
+ if (cmd_len < l) { \
+ rsp[2] = IPMI_CC_REQUEST_DATA_LENGTH_INVALID; \
+ goto out; \
+ }
+
+/* Check that the reservation in the command is valid. */
+#define IPMI_CHECK_RESERVATION(off, r) \
+ do { \
+ if ((cmd[off] | (cmd[off + 1] << 8)) != r) { \
+ rsp[2] = IPMI_CC_INVALID_RESERVATION; \
+ goto out; \
+ } \
+ } while (0)
+
+
+static void ipmi_sim_handle_timeout(IPMISimBmc *ss);
+
+static void ipmi_gettime(struct ipmi_time *time)
+{
+ int64_t stime;
+
+ stime = get_clock_realtime();
+ time->tv_sec = stime / 1000000000LL;
+ time->tv_nsec = stime % 1000000000LL;
+}
+
+static int64_t ipmi_getmonotime(void)
+{
+ return qemu_get_clock_ns(vm_clock);
+}
+
+static void ipmi_timeout(void *opaque)
+{
+ IPMISimBmc *ss = opaque;
+
+ ipmi_sim_handle_timeout(ss);
+}
+
+static void set_timestamp(IPMISimBmc *ss, uint8_t *ts)
+{
+ unsigned int val;
+ struct ipmi_time now;
+
+ ipmi_gettime(&now);
+ val = now.tv_sec + ss->sel.time_offset;
+ ts[0] = val & 0xff;
+ ts[1] = (val >> 8) & 0xff;
+ ts[2] = (val >> 16) & 0xff;
+ ts[3] = (val >> 24) & 0xff;
+}
+
+static void sdr_inc_reservation(IPMISdr *sdr)
+{
+ sdr->reservation++;
+ if (sdr->reservation == 0) {
+ sdr->reservation = 1;
+ }
+}
+
+static int sdr_add_entry(IPMISimBmc *ss, const uint8_t *entry,
+ unsigned int len, uint16_t *recid)
+{
+ if ((len < 5) || (len > 255)) {
+ return 1;
+ }
+
+ if (entry[ss->sdr.next_free + 4] != len) {
+ return 1;
+ }
+
+ if (ss->sdr.next_free + len > MAX_SDR_SIZE) {
+ ss->sdr.overflow = 1;
+ return 1;
+ }
+
+ memcpy(ss->sdr.sdr + ss->sdr.next_free, entry, len);
+ ss->sdr.sdr[ss->sdr.next_free] = ss->sdr.next_rec_id & 0xff;
+ ss->sdr.sdr[ss->sdr.next_free+1] = (ss->sdr.next_rec_id >> 8) & 0xff;
+ ss->sdr.sdr[ss->sdr.next_free+2] = 0x51; /* Conform to IPMI 1.5 spec */
+
+ if (recid) {
+ *recid = ss->sdr.next_rec_id;
+ }
+ ss->sdr.next_rec_id++;
+ set_timestamp(ss, ss->sdr.last_addition);
+ ss->sdr.next_free += len;
+ sdr_inc_reservation(&ss->sdr);
+ return 0;
+}
+
+static int sdr_find_entry(IPMISdr *sdr, uint16_t recid,
+ unsigned int *retpos, uint16_t *nextrec)
+{
+ unsigned int pos = *retpos;
+
+ while (pos < sdr->next_free) {
+ uint16_t trec = sdr->sdr[pos] | (sdr->sdr[pos + 1] << 8);
+ unsigned int nextpos = pos + sdr->sdr[pos + 4];
+
+ if (trec == recid) {
+ if (nextrec) {
+ if (nextpos >= sdr->next_free) {
+ *nextrec = 0xffff;
+ } else {
+ *nextrec = (sdr->sdr[nextpos] |
+ (sdr->sdr[nextpos + 1] << 8));
+ }
+ }
+ *retpos = pos;
+ return 0;
+ }
+ pos = nextpos;
+ }
+ return 1;
+}
+
+static void sel_inc_reservation(IPMISel *sel)
+{
+ sel->reservation++;
+ if (sel->reservation == 0) {
+ sel->reservation = 1;
+ }
+}
+
+/* Returns 1 if the SEL is full and can't hold the event. */
+static int sel_add_event(IPMISimBmc *ss, uint8_t *event)
+{
+ event[0] = 0xff;
+ event[1] = 0xff;
+ set_timestamp(ss, event + 3);
+ if (ss->sel.next_free == MAX_SEL_SIZE) {
+ ss->sel.overflow = 1;
+ return 1;
+ }
+ event[0] = ss->sel.next_free & 0xff;
+ event[1] = (ss->sel.next_free >> 8) & 0xff;
+ memcpy(ss->sel.last_addition, event + 3, 4);
+ memcpy(ss->sel.sel[ss->sel.next_free], event, 16);
+ ss->sel.next_free++;
+ sel_inc_reservation(&ss->sel);
+ return 0;
+}
+
+static int attn_irq_enabled(IPMISimBmc *s)
+{
+ return (IPMI_BMC_MSG_INTS_ON(s) && IPMI_BMC_MSG_FLAG_RCV_MSG_QUEUE_SET(s))
+ || (IPMI_BMC_EVBUF_FULL_INT_ENABLED(s) &&
+ IPMI_BMC_MSG_FLAG_EVT_BUF_FULL_SET(s));
+}
+
+static void gen_event(IPMISimBmc *ss, unsigned int sens_num, uint8_t deassert,
+ uint8_t evd1, uint8_t evd2, uint8_t evd3)
+{
+ IPMIInterface *s = ss->parent.intf;
+ IPMIInterfaceClass *k = IPMI_INTERFACE_GET_CLASS(s);
+ uint8_t evt[16];
+ IPMISensor *sens = ss->sensors + sens_num;
+
+ if (!IPMI_BMC_EVENT_MSG_BUF_ENABLED(ss)) {
+ return;
+ }
+ if (!IPMI_SENSOR_GET_EVENTS_ON(sens)) {
+ return;
+ }
+
+ evt[2] = 0x2; /* System event record */
+ evt[7] = s->slave_addr;
+ evt[8] = 0;
+ evt[9] = 0x04; /* Format version */
+ evt[10] = sens->sensor_type;
+ evt[11] = sens_num;
+ evt[12] = sens->evt_reading_type_code | (!!deassert << 7);
+ evt[13] = evd1;
+ evt[14] = evd2;
+ evt[15] = evd3;
+
+ if (IPMI_BMC_EVENT_LOG_ENABLED(ss)) {
+ sel_add_event(ss, evt);
+ }
+
+ if (ss->msg_flags & IPMI_BMC_MSG_FLAG_EVT_BUF_FULL) {
+ goto out;
+ }
+
+ ss->msg_flags |= IPMI_BMC_MSG_FLAG_EVT_BUF_FULL;
+ memcpy(ss->evtbuf, evt, 16);
+ if (k->set_atn &&
+ ~(ss->msg_flags & IPMI_BMC_MSG_FLAG_WATCHDOG_TIMEOUT_MASK)) {
+ k->set_atn(s, 1, attn_irq_enabled(ss));
+ }
+ out:
+ return;
+}
+
+static void sensor_set_discrete_bit(IPMISimBmc *ss, unsigned int sensor,
+ unsigned int bit, unsigned int val,
+ uint8_t evd1, uint8_t evd2, uint8_t evd3)
+{
+ IPMISensor *sens;
+ uint16_t mask;
+
+ if (sensor >= MAX_SENSORS) {
+ return;
+ }
+ if (bit >= 16) {
+ return;
+ }
+
+ mask = (1 << bit);
+ sens = ss->sensors + sensor;
+ if (val) {
+ sens->states |= mask & sens->states_suppt;
+ if (sens->assert_states & mask) {
+ return; /* Already asserted */
+ }
+ sens->assert_states |= mask & sens->assert_suppt;
+ if (sens->assert_enable & mask & sens->assert_states) {
+ /* Send an event on assert */
+ gen_event(ss, sensor, 0, evd1, evd2, evd3);
+ }
+ } else {
+ sens->states &= ~(mask & sens->states_suppt);
+ if (sens->deassert_states & mask) {
+ return; /* Already deasserted */
+ }
+ sens->deassert_states |= mask & sens->deassert_suppt;
+ if (sens->deassert_enable & mask & sens->deassert_states) {
+ /* Send an event on deassert */
+ gen_event(ss, sensor, 1, evd1, evd2, evd3);
+ }
+ }
+}
+
+static void ipmi_init_sensors_from_sdrs(IPMISimBmc *s)
+{
+ unsigned int i, pos;
+ IPMISensor *sens;
+
+ for (i = 0; i < MAX_SENSORS; i++) {
+ memset(s->sensors + i, 0, sizeof(*sens));
+ }
+
+ pos = 0;
+ for (i = 0; !sdr_find_entry(&s->sdr, i, &pos, NULL); i++) {
+ uint8_t *sdr = s->sdr.sdr + pos;
+ unsigned int len = sdr[4];
+
+ if (len < 20) {
+ continue;
+ }
+ if ((sdr[3] < 1) || (sdr[3] > 2)) {
+ continue; /* Not a sensor SDR we set from */
+ }
+
+ if (sdr[7] > MAX_SENSORS) {
+ continue;
+ }
+ sens = s->sensors + sdr[7];
+
+ IPMI_SENSOR_SET_PRESENT(sens, 1);
+ IPMI_SENSOR_SET_SCAN_ON(sens, (sdr[10] >> 6) & 1);
+ IPMI_SENSOR_SET_EVENTS_ON(sens, (sdr[10] >> 5) & 1);
+ sens->assert_suppt = sdr[14] | (sdr[15] << 8);
+ sens->deassert_suppt = sdr[16] | (sdr[17] << 8);
+ sens->states_suppt = sdr[18] | (sdr[19] << 8);
+ sens->sensor_type = sdr[12];
+ sens->evt_reading_type_code = sdr[13] & 0x7f;
+
+ /* Enable all the events that are supported. */
+ sens->assert_enable = sens->assert_suppt;
+ sens->deassert_enable = sens->deassert_suppt;
+ }
+}
+
+static int ipmi_register_netfn(IPMISimBmc *s, unsigned int netfn,
+ const IPMINetfn *netfnd)
+{
+ if ((netfn & 1) || (netfn > MAX_NETFNS) || (s->netfns[netfn / 2])) {
+ return -1;
+ }
+ s->netfns[netfn / 2] = netfnd;
+ return 0;
+}
+
+static void next_timeout(IPMISimBmc *ss)
+{
+ int64_t next;
+ if (ss->watchdog_running) {
+ next = ss->watchdog_expiry;
+ } else {
+ /* Wait a minute */
+ next = ipmi_getmonotime() + 60 * 1000000000LL;
+ }
+ qemu_mod_timer_ns(ss->timer, next);
+}
+
+static void ipmi_sim_handle_command(IPMIBmc *b,
+ uint8_t *cmd, unsigned int cmd_len,
+ unsigned int max_cmd_len,
+ uint8_t msg_id)
+{
+ IPMISimBmc *ss = IPMI_BMC_SIMULATOR(b);
+ IPMIInterface *s = ss->parent.intf;
+ IPMIInterfaceClass *k = IPMI_INTERFACE_GET_CLASS(s);
+ unsigned int netfn;
+ uint8_t rsp[MAX_IPMI_MSG_SIZE];
+ unsigned int rsp_len_holder = 0;
+ unsigned int *rsp_len = &rsp_len_holder;
+ unsigned int max_rsp_len = sizeof(rsp);
+
+ /* Set up the response, set the low bit of NETFN. */
+ /* Note that max_rsp_len must be at least 3 */
+ IPMI_ADD_RSP_DATA(cmd[0] | 0x04);
+ IPMI_ADD_RSP_DATA(cmd[1]);
+ IPMI_ADD_RSP_DATA(0); /* Assume success */
+
+ /* If it's too short or it was truncated, return an error. */
+ if (cmd_len < 2) {
+ rsp[2] = IPMI_CC_REQUEST_DATA_LENGTH_INVALID;
+ goto out;
+ }
+ if (cmd_len > max_cmd_len) {
+ rsp[2] = IPMI_CC_REQUEST_DATA_TRUNCATED;
+ goto out;
+ }
+
+ if ((cmd[0] & 0x03) != 0) {
+ /* Only have stuff on LUN 0 */
+ rsp[2] = IPMI_CC_COMMAND_INVALID_FOR_LUN;
+ goto out;
+ }
+
+ netfn = cmd[0] >> 2;
+
+ /* Odd netfns are not valid, make sure the command is registered */
+ if ((netfn & 1) || !ss->netfns[netfn / 2] ||
+ (cmd[1] >= ss->netfns[netfn / 2]->cmd_nums) ||
+ (!ss->netfns[netfn / 2]->cmd_handlers[cmd[1]])) {
+ rsp[2] = IPMI_CC_INVALID_CMD;
+ goto out;
+ }
+
+ ss->netfns[netfn / 2]->cmd_handlers[cmd[1]](ss, cmd, cmd_len, rsp, rsp_len,
+ max_rsp_len);
+
+ out:
+ k->handle_rsp(s, msg_id, rsp, *rsp_len);
+
+ next_timeout(ss);
+}
+
+static void ipmi_sim_handle_timeout(IPMISimBmc *ss)
+{
+ IPMIInterface *s = ss->parent.intf;
+ IPMIInterfaceClass *k = IPMI_INTERFACE_GET_CLASS(s);
+
+ if (!ss->watchdog_running) {
+ goto out;
+ }
+
+ if (!ss->watchdog_preaction_ran) {
+ switch (IPMI_BMC_WATCHDOG_GET_PRE_ACTION(ss)) {
+ case IPMI_BMC_WATCHDOG_PRE_NMI:
+ ss->msg_flags |= IPMI_BMC_MSG_FLAG_WATCHDOG_TIMEOUT_MASK;
+ k->do_hw_op(s, IPMI_SEND_NMI, 0);
+ sensor_set_discrete_bit(ss, IPMI_WATCHDOG_SENSOR, 8, 1,
+ 0xc8, (2 << 4) | 0xf, 0xff);
+ break;
+
+ case IPMI_BMC_WATCHDOG_PRE_MSG_INT:
+ ss->msg_flags |= IPMI_BMC_MSG_FLAG_WATCHDOG_TIMEOUT_MASK;
+ if (k->set_atn &&
+ !(ss->msg_flags & IPMI_BMC_MSG_FLAG_EVT_BUF_FULL)) {
+ k->set_atn(s, 1, attn_irq_enabled(ss));
+ }
+ sensor_set_discrete_bit(ss, IPMI_WATCHDOG_SENSOR, 8, 1,
+ 0xc8, (3 << 4) | 0xf, 0xff);
+ break;
+
+ default:
+ goto do_full_expiry;
+ }
+
+ ss->watchdog_preaction_ran = 1;
+ /* Issued the pretimeout, do the rest of the timeout now. */
+ ss->watchdog_expiry = ipmi_getmonotime();
+ ss->watchdog_expiry += ss->watchdog_pretimeout * 1000000000LL;
+ goto out;
+ }
+
+ do_full_expiry:
+ ss->watchdog_running = 0; /* Stop the watchdog on a timeout */
+ ss->watchdog_expired |= (1 << IPMI_BMC_WATCHDOG_GET_USE(ss));
+ switch (IPMI_BMC_WATCHDOG_GET_ACTION(ss)) {
+ case IPMI_BMC_WATCHDOG_ACTION_NONE:
+ sensor_set_discrete_bit(ss, IPMI_WATCHDOG_SENSOR, 0, 1,
+ 0xc0, ss->watchdog_use & 0xf, 0xff);
+ break;
+
+ case IPMI_BMC_WATCHDOG_ACTION_RESET:
+ sensor_set_discrete_bit(ss, IPMI_WATCHDOG_SENSOR, 1, 1,
+ 0xc1, ss->watchdog_use & 0xf, 0xff);
+ k->do_hw_op(s, IPMI_RESET_CHASSIS, 0);
+ break;
+
+ case IPMI_BMC_WATCHDOG_ACTION_POWER_DOWN:
+ sensor_set_discrete_bit(ss, IPMI_WATCHDOG_SENSOR, 2, 1,
+ 0xc2, ss->watchdog_use & 0xf, 0xff);
+ k->do_hw_op(s, IPMI_POWEROFF_CHASSIS, 0);
+ break;
+
+ case IPMI_BMC_WATCHDOG_ACTION_POWER_CYCLE:
+ sensor_set_discrete_bit(ss, IPMI_WATCHDOG_SENSOR, 2, 1,
+ 0xc3, ss->watchdog_use & 0xf, 0xff);
+ k->do_hw_op(s, IPMI_POWERCYCLE_CHASSIS, 0);
+ break;
+ }
+
+ out:
+ next_timeout(ss);
+}
+
+static void chassis_capabilities(IPMISimBmc *ss,
+ uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len,
+ unsigned int max_rsp_len)
+{
+ IPMIInterface *s = ss->parent.intf;
+
+ IPMI_ADD_RSP_DATA(0);
+ IPMI_ADD_RSP_DATA(s->slave_addr);
+ IPMI_ADD_RSP_DATA(s->slave_addr);
+ IPMI_ADD_RSP_DATA(s->slave_addr);
+ IPMI_ADD_RSP_DATA(s->slave_addr);
+ out:
+ return;
+}
+
+static void chassis_status(IPMISimBmc *ss,
+ uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len,
+ unsigned int max_rsp_len)
+{
+ IPMI_ADD_RSP_DATA(0x61); /* Unknown power restore, power is on */
+ IPMI_ADD_RSP_DATA(0);
+ IPMI_ADD_RSP_DATA(0);
+ IPMI_ADD_RSP_DATA(0);
+ out:
+ return;
+}
+
+static void chassis_control(IPMISimBmc *ss,
+ uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len,
+ unsigned int max_rsp_len)
+{
+ IPMIInterface *s = ss->parent.intf;
+ IPMIInterfaceClass *k = IPMI_INTERFACE_GET_CLASS(s);
+
+ IPMI_CHECK_CMD_LEN(3);
+ switch (cmd[2] & 0xf) {
+ case 0: /* power down */
+ rsp[2] = k->do_hw_op(s, IPMI_POWEROFF_CHASSIS, 0);
+ break;
+ case 1: /* power up */
+ rsp[2] = k->do_hw_op(s, IPMI_POWERON_CHASSIS, 0);
+ break;
+ case 2: /* power cycle */
+ rsp[2] = k->do_hw_op(s, IPMI_POWERCYCLE_CHASSIS, 0);
+ break;
+ case 3: /* hard reset */
+ rsp[2] = k->do_hw_op(s, IPMI_RESET_CHASSIS, 0);
+ break;
+ case 4: /* pulse diagnostic interrupt */
+ rsp[2] = k->do_hw_op(s, IPMI_PULSE_DIAG_IRQ, 0);
+ break;
+ case 5: /* soft shutdown via ACPI by overtemp emulation */
+ rsp[2] = k->do_hw_op(s,
+ IPMI_SHUTDOWN_VIA_ACPI_OVERTEMP, 0);
+ break;
+ default:
+ rsp[2] = IPMI_CC_INVALID_DATA_FIELD;
+ goto out;
+ }
+ out:
+ return;
+}
+
+static void get_device_id(IPMISimBmc *ss,
+ uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len,
+ unsigned int max_rsp_len)
+{
+ IPMI_ADD_RSP_DATA(ss->device_id);
+ IPMI_ADD_RSP_DATA(ss->device_rev & 0xf);
+ IPMI_ADD_RSP_DATA(ss->fwrev1 & 0x7f);
+ IPMI_ADD_RSP_DATA(ss->fwrev2);
+ IPMI_ADD_RSP_DATA(ss->ipmi_version);
+ IPMI_ADD_RSP_DATA(0x07); /* sensor, SDR, and SEL. */
+ IPMI_ADD_RSP_DATA(ss->mfg_id[0]);
+ IPMI_ADD_RSP_DATA(ss->mfg_id[1]);
+ IPMI_ADD_RSP_DATA(ss->mfg_id[2]);
+ IPMI_ADD_RSP_DATA(ss->product_id[0]);
+ IPMI_ADD_RSP_DATA(ss->product_id[1]);
+ out:
+ return;
+}
+
+static void set_bmc_global_enables(IPMISimBmc *ss,
+ uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len,
+ unsigned int max_rsp_len)
+{
+ IPMIInterface *s = ss->parent.intf;
+ IPMIInterfaceClass *k = IPMI_INTERFACE_GET_CLASS(s);
+ uint8_t old_val = ss->bmc_global_enables;
+
+ IPMI_CHECK_CMD_LEN(3);
+ ss->bmc_global_enables = cmd[2];
+ if ((old_val & (1 << IPMI_BMC_RCV_MSG_QUEUE_INT_BIT))
+ != (cmd[2] & (1 << IPMI_BMC_RCV_MSG_QUEUE_INT_BIT))) {
+ k->set_irq_enable(s,
+ !!(cmd[2] & (1 << IPMI_BMC_RCV_MSG_QUEUE_INT_BIT)));
+ }
+ out:
+ return;
+}
+
+static void get_bmc_global_enables(IPMISimBmc *ss,
+ uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len,
+ unsigned int max_rsp_len)
+{
+ IPMI_ADD_RSP_DATA(ss->bmc_global_enables);
+ out:
+ return;
+}
+
+static void clr_msg_flags(IPMISimBmc *ss,
+ uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len,
+ unsigned int max_rsp_len)
+{
+ IPMIInterface *s = ss->parent.intf;
+ IPMIInterfaceClass *k = IPMI_INTERFACE_GET_CLASS(s);
+
+ IPMI_CHECK_CMD_LEN(3);
+ if (cmd[2] & IPMI_BMC_MSG_FLAG_WATCHDOG_TIMEOUT_MASK) {
+ if (k->set_atn &&
+ !(ss->msg_flags & IPMI_BMC_MSG_FLAG_EVT_BUF_FULL)) {
+ k->set_atn(s, 0, attn_irq_enabled(ss));
+ }
+ }
+ ss->msg_flags &= ~cmd[2];
+ out:
+ return;
+}
+
+static void get_msg_flags(IPMISimBmc *ss,
+ uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len,
+ unsigned int max_rsp_len)
+{
+ IPMI_ADD_RSP_DATA(ss->msg_flags);
+ out:
+ return;
+}
+
+static void read_evt_msg_buf(IPMISimBmc *ss,
+ uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len,
+ unsigned int max_rsp_len)
+{
+ IPMIInterface *s = ss->parent.intf;
+ IPMIInterfaceClass *k = IPMI_INTERFACE_GET_CLASS(s);
+ unsigned int i;
+
+ if (!(ss->msg_flags & IPMI_BMC_MSG_FLAG_EVT_BUF_FULL)) {
+ rsp[2] = 0x80;
+ goto out;
+ }
+ for (i = 0; i < 16; i++) {
+ IPMI_ADD_RSP_DATA(ss->evtbuf[i]);
+ }
+ ss->msg_flags &= ~IPMI_BMC_MSG_FLAG_EVT_BUF_FULL;
+ if (k->set_atn &&
+ ~(ss->msg_flags & IPMI_BMC_MSG_FLAG_WATCHDOG_TIMEOUT_MASK)) {
+ k->set_atn(s, 0, attn_irq_enabled(ss));
+ }
+ out:
+ return;
+}
+
+static void do_watchdog_reset(IPMISimBmc *ss)
+{
+ if (IPMI_BMC_WATCHDOG_GET_ACTION(ss) ==
+ IPMI_BMC_WATCHDOG_ACTION_NONE) {
+ ss->watchdog_running = 0;
+ return;
+ }
+ ss->watchdog_preaction_ran = 0;
+
+
+ /* Timeout is in tenths of a second, offset is in seconds */
+ ss->watchdog_expiry = ipmi_getmonotime();
+ ss->watchdog_expiry += ss->watchdog_timeout * 100000000LL;
+ if (IPMI_BMC_WATCHDOG_GET_PRE_ACTION(ss) != IPMI_BMC_WATCHDOG_PRE_NONE) {
+ ss->watchdog_expiry -= ss->watchdog_pretimeout * 1000000000LL;
+ }
+ ss->watchdog_running = 1;
+}
+
+static void reset_watchdog_timer(IPMISimBmc *ss,
+ uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len,
+ unsigned int max_rsp_len)
+{
+ if (!ss->watchdog_initialized) {
+ rsp[2] = 0x80;
+ goto out;
+ }
+ do_watchdog_reset(ss);
+ out:
+ return;
+}
+
+static void set_watchdog_timer(IPMISimBmc *ss,
+ uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len,
+ unsigned int max_rsp_len)
+{
+ IPMIInterface *s = ss->parent.intf;
+ IPMIInterfaceClass *k = IPMI_INTERFACE_GET_CLASS(s);
+ unsigned int val;
+
+ IPMI_CHECK_CMD_LEN(8);
+ val = cmd[2] & 0x7; /* Validate use */
+ if (val == 0 || val > 5) {
+ rsp[2] = IPMI_CC_INVALID_DATA_FIELD;
+ goto out;
+ }
+ val = cmd[3] & 0x7; /* Validate action */
+ switch (val) {
+ case IPMI_BMC_WATCHDOG_ACTION_NONE:
+ break;
+
+ case IPMI_BMC_WATCHDOG_ACTION_RESET:
+ rsp[2] = k->do_hw_op(s, IPMI_RESET_CHASSIS, 1);
+ break;
+
+ case IPMI_BMC_WATCHDOG_ACTION_POWER_DOWN:
+ rsp[2] = k->do_hw_op(s, IPMI_POWEROFF_CHASSIS, 1);
+ break;
+
+ case IPMI_BMC_WATCHDOG_ACTION_POWER_CYCLE:
+ rsp[2] = k->do_hw_op(s, IPMI_POWERCYCLE_CHASSIS, 1);
+ break;
+
+ default:
+ rsp[2] = IPMI_CC_INVALID_DATA_FIELD;
+ }
+ if (rsp[2]) {
+ rsp[2] = IPMI_CC_INVALID_DATA_FIELD;
+ goto out;
+ }
+
+ val = (cmd[3] >> 4) & 0x7; /* Validate preaction */
+ switch (val) {
+ case IPMI_BMC_WATCHDOG_PRE_MSG_INT:
+ case IPMI_BMC_WATCHDOG_PRE_NONE:
+ break;
+
+ case IPMI_BMC_WATCHDOG_PRE_NMI:
+ if (!k->do_hw_op(s, IPMI_SEND_NMI, 1)) {
+ /* NMI not supported. */
+ rsp[2] = IPMI_CC_INVALID_DATA_FIELD;
+ goto out;
+ }
+ default:
+ /* We don't support PRE_SMI */
+ rsp[2] = IPMI_CC_INVALID_DATA_FIELD;
+ goto out;
+ }
+
+ ss->watchdog_initialized = 1;
+ ss->watchdog_use = cmd[2] & IPMI_BMC_WATCHDOG_USE_MASK;
+ ss->watchdog_action = cmd[3] & IPMI_BMC_WATCHDOG_ACTION_MASK;
+ ss->watchdog_pretimeout = cmd[4];
+ ss->watchdog_expired &= ~cmd[5];
+ ss->watchdog_timeout = cmd[6] | (((uint16_t) cmd[7]) << 8);
+ if (ss->watchdog_running & IPMI_BMC_WATCHDOG_GET_DONT_STOP(ss)) {
+ do_watchdog_reset(ss);
+ } else {
+ ss->watchdog_running = 0;
+ }
+ out:
+ return;
+}
+
+static void get_watchdog_timer(IPMISimBmc *ss,
+ uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len,
+ unsigned int max_rsp_len)
+{
+ IPMI_ADD_RSP_DATA(ss->watchdog_use);
+ IPMI_ADD_RSP_DATA(ss->watchdog_action);
+ IPMI_ADD_RSP_DATA(ss->watchdog_pretimeout);
+ IPMI_ADD_RSP_DATA(ss->watchdog_expired);
+ if (ss->watchdog_running) {
+ long timeout;
+ timeout = ((ss->watchdog_expiry - ipmi_getmonotime() + 50000000)
+ / 100000000);
+ IPMI_ADD_RSP_DATA(timeout & 0xff);
+ IPMI_ADD_RSP_DATA((timeout >> 8) & 0xff);
+ } else {
+ IPMI_ADD_RSP_DATA(0);
+ IPMI_ADD_RSP_DATA(0);
+ }
+ out:
+ return;
+}
+
+static void get_sdr_rep_info(IPMISimBmc *ss,
+ uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len,
+ unsigned int max_rsp_len)
+{
+ unsigned int i;
+
+ IPMI_ADD_RSP_DATA(0x51); /* Conform to IPMI 1.5 spec */
+ IPMI_ADD_RSP_DATA(ss->sdr.next_rec_id & 0xff);
+ IPMI_ADD_RSP_DATA((ss->sdr.next_rec_id >> 8) & 0xff);
+ IPMI_ADD_RSP_DATA((MAX_SDR_SIZE - ss->sdr.next_free) & 0xff);
+ IPMI_ADD_RSP_DATA(((MAX_SDR_SIZE - ss->sdr.next_free) >> 8) & 0xff);
+ for (i = 0; i < 4; i++) {
+ IPMI_ADD_RSP_DATA(ss->sdr.last_addition[i]);
+ }
+ for (i = 0; i < 4; i++) {
+ IPMI_ADD_RSP_DATA(ss->sdr.last_clear[i]);
+ }
+ /* Only modal support, reserve supported */
+ IPMI_ADD_RSP_DATA((ss->sdr.overflow << 7) | 0x22);
+ out:
+ return;
+}
+
+static void reserve_sdr_rep(IPMISimBmc *ss,
+ uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len,
+ unsigned int max_rsp_len)
+{
+ IPMI_ADD_RSP_DATA(ss->sdr.reservation & 0xff);
+ IPMI_ADD_RSP_DATA((ss->sdr.reservation >> 8) & 0xff);
+ out:
+ return;
+}
+
+static void get_sdr(IPMISimBmc *ss,
+ uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len,
+ unsigned int max_rsp_len)
+{
+ unsigned int pos;
+ uint16_t nextrec;
+
+ IPMI_CHECK_CMD_LEN(8);
+ if (cmd[6]) {
+ IPMI_CHECK_RESERVATION(2, ss->sdr.reservation);
+ }
+ pos = 0;
+ if (sdr_find_entry(&ss->sdr, cmd[4] | (cmd[5] << 8),
+ &pos, &nextrec)) {
+ rsp[2] = IPMI_CC_REQ_ENTRY_NOT_PRESENT;
+ goto out;
+ }
+ if (cmd[6] > (ss->sdr.sdr[pos + 4])) {
+ rsp[2] = IPMI_CC_PARM_OUT_OF_RANGE;
+ goto out;
+ }
+
+ IPMI_ADD_RSP_DATA(nextrec & 0xff);
+ IPMI_ADD_RSP_DATA((nextrec >> 8) & 0xff);
+
+ if (cmd[7] == 0xff) {
+ cmd[7] = ss->sdr.sdr[pos + 4] - cmd[6];
+ }
+
+ if ((cmd[7] + *rsp_len) > max_rsp_len) {
+ rsp[2] = IPMI_CC_CANNOT_RETURN_REQ_NUM_BYTES;
+ goto out;
+ }
+ memcpy(rsp + *rsp_len, ss->sdr.sdr + pos + cmd[6], cmd[7]);
+ *rsp_len += cmd[7];
+ out:
+ return;
+}
+
+static void add_sdr(IPMISimBmc *ss,
+ uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len,
+ unsigned int max_rsp_len)
+{
+ uint16_t recid;
+
+ if (sdr_add_entry(ss, cmd + 2, cmd_len - 2, &recid)) {
+ rsp[2] = IPMI_CC_INVALID_DATA_FIELD;
+ goto out;
+ }
+ IPMI_ADD_RSP_DATA(recid & 0xff);
+ IPMI_ADD_RSP_DATA((recid >> 8) & 0xff);
+ out:
+ return;
+}
+
+static void clear_sdr_rep(IPMISimBmc *ss,
+ uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len,
+ unsigned int max_rsp_len)
+{
+ IPMI_CHECK_CMD_LEN(8);
+ IPMI_CHECK_RESERVATION(2, ss->sdr.reservation);
+ if (cmd[4] != 'C' || cmd[5] != 'L' || cmd[6] != 'R') {
+ rsp[2] = IPMI_CC_INVALID_DATA_FIELD;
+ goto out;
+ }
+ if (cmd[7] == 0xaa) {
+ ss->sdr.next_free = 0;
+ ss->sdr.overflow = 0;
+ set_timestamp(ss, ss->sdr.last_clear);
+ IPMI_ADD_RSP_DATA(1); /* Erasure complete */
+ sdr_inc_reservation(&ss->sdr);
+ } else if (cmd[7] == 0) {
+ IPMI_ADD_RSP_DATA(1); /* Erasure complete */
+ } else {
+ rsp[2] = IPMI_CC_INVALID_DATA_FIELD;
+ goto out;
+ }
+ out:
+ return;
+}
+
+static void get_sel_info(IPMISimBmc *ss,
+ uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len,
+ unsigned int max_rsp_len)
+{
+ unsigned int i, val;
+
+ IPMI_ADD_RSP_DATA(0x51); /* Conform to IPMI 1.5 */
+ IPMI_ADD_RSP_DATA(ss->sel.next_free & 0xff);
+ IPMI_ADD_RSP_DATA((ss->sel.next_free >> 8) & 0xff);
+ val = (MAX_SEL_SIZE - ss->sel.next_free) * 16;
+ IPMI_ADD_RSP_DATA(val & 0xff);
+ IPMI_ADD_RSP_DATA((val >> 8) & 0xff);
+ for (i = 0; i < 4; i++) {
+ IPMI_ADD_RSP_DATA(ss->sel.last_addition[i]);
+ }
+ for (i = 0; i < 4; i++) {
+ IPMI_ADD_RSP_DATA(ss->sel.last_clear[i]);
+ }
+ /* Only support Reserve SEL */
+ IPMI_ADD_RSP_DATA((ss->sel.overflow << 7) | 0x02);
+ out:
+ return;
+}
+
+static void reserve_sel(IPMISimBmc *ss,
+ uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len,
+ unsigned int max_rsp_len)
+{
+ IPMI_ADD_RSP_DATA(ss->sel.reservation & 0xff);
+ IPMI_ADD_RSP_DATA((ss->sel.reservation >> 8) & 0xff);
+ out:
+ return;
+}
+
+static void get_sel_entry(IPMISimBmc *ss,
+ uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len,
+ unsigned int max_rsp_len)
+{
+ unsigned int val;
+
+ IPMI_CHECK_CMD_LEN(8);
+ if (cmd[6]) {
+ IPMI_CHECK_RESERVATION(2, ss->sel.reservation);
+ }
+ if (ss->sel.next_free == 0) {
+ rsp[2] = IPMI_CC_REQ_ENTRY_NOT_PRESENT;
+ goto out;
+ }
+ if (cmd[6] > 15) {
+ rsp[2] = IPMI_CC_INVALID_DATA_FIELD;
+ goto out;
+ }
+ if (cmd[7] == 0xff) {
+ cmd[7] = 16;
+ } else if ((cmd[7] + cmd[6]) > 16) {
+ rsp[2] = IPMI_CC_INVALID_DATA_FIELD;
+ goto out;
+ } else {
+ cmd[7] += cmd[6];
+ }
+
+ val = cmd[4] | (cmd[5] << 8);
+ if (val == 0xffff) {
+ val = ss->sel.next_free - 1;
+ } else if (val >= ss->sel.next_free) {
+ rsp[2] = IPMI_CC_REQ_ENTRY_NOT_PRESENT;
+ goto out;
+ }
+ if ((val + 1) == ss->sel.next_free) {
+ IPMI_ADD_RSP_DATA(0xff);
+ IPMI_ADD_RSP_DATA(0xff);
+ } else {
+ IPMI_ADD_RSP_DATA((val + 1) & 0xff);
+ IPMI_ADD_RSP_DATA(((val + 1) >> 8) & 0xff);
+ }
+ for (; cmd[6] < cmd[7]; cmd[6]++) {
+ IPMI_ADD_RSP_DATA(ss->sel.sel[val][cmd[6]]);
+ }
+ out:
+ return;
+}
+
+static void add_sel_entry(IPMISimBmc *ss,
+ uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len,
+ unsigned int max_rsp_len)
+{
+ IPMI_CHECK_CMD_LEN(18);
+ if (sel_add_event(ss, cmd + 2)) {
+ rsp[2] = IPMI_CC_OUT_OF_SPACE;
+ goto out;
+ }
+ /* sel_add_event fills in the record number. */
+ IPMI_ADD_RSP_DATA(cmd[2]);
+ IPMI_ADD_RSP_DATA(cmd[3]);
+ out:
+ return;
+}
+
+static void clear_sel(IPMISimBmc *ss,
+ uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len,
+ unsigned int max_rsp_len)
+{
+ IPMI_CHECK_CMD_LEN(8);
+ IPMI_CHECK_RESERVATION(2, ss->sel.reservation);
+ if (cmd[4] != 'C' || cmd[5] != 'L' || cmd[6] != 'R') {
+ rsp[2] = IPMI_CC_INVALID_DATA_FIELD;
+ goto out;
+ }
+ if (cmd[7] == 0xaa) {
+ ss->sel.next_free = 0;
+ ss->sel.overflow = 0;
+ set_timestamp(ss, ss->sdr.last_clear);
+ IPMI_ADD_RSP_DATA(1); /* Erasure complete */
+ sel_inc_reservation(&ss->sel);
+ } else if (cmd[7] == 0) {
+ IPMI_ADD_RSP_DATA(1); /* Erasure complete */
+ } else {
+ rsp[2] = IPMI_CC_INVALID_DATA_FIELD;
+ goto out;
+ }
+ out:
+ return;
+}
+
+static void get_sel_time(IPMISimBmc *ss,
+ uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len,
+ unsigned int max_rsp_len)
+{
+ uint32_t val;
+ struct ipmi_time now;
+
+ ipmi_gettime(&now);
+ val = now.tv_sec + ss->sel.time_offset;
+ IPMI_ADD_RSP_DATA(val & 0xff);
+ IPMI_ADD_RSP_DATA((val >> 8) & 0xff);
+ IPMI_ADD_RSP_DATA((val >> 16) & 0xff);
+ IPMI_ADD_RSP_DATA((val >> 24) & 0xff);
+ out:
+ return;
+}
+
+static void set_sel_time(IPMISimBmc *ss,
+ uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len,
+ unsigned int max_rsp_len)
+{
+ uint32_t val;
+ struct ipmi_time now;
+
+ IPMI_CHECK_CMD_LEN(6);
+ val = cmd[2] | (cmd[3] << 8) | (cmd[4] << 16) | (cmd[5] << 24);
+ ipmi_gettime(&now);
+ ss->sel.time_offset = now.tv_sec - ((long) val);
+ out:
+ return;
+}
+
+static void set_sensor_evt_enable(IPMISimBmc *ss,
+ uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len,
+ unsigned int max_rsp_len)
+{
+ IPMISensor *sens;
+
+ IPMI_CHECK_CMD_LEN(4);
+ if ((cmd[2] > MAX_SENSORS) ||
+ !IPMI_SENSOR_GET_PRESENT(ss->sensors + cmd[2])) {
+ rsp[2] = IPMI_CC_REQ_ENTRY_NOT_PRESENT;
+ goto out;
+ }
+ sens = ss->sensors + cmd[2];
+ switch ((cmd[3] >> 4) & 0x3) {
+ case 0: /* Do not change */
+ break;
+ case 1: /* Enable bits */
+ if (cmd_len > 4) {
+ sens->assert_enable |= cmd[4];
+ }
+ if (cmd_len > 5) {
+ sens->assert_enable |= cmd[5] << 8;
+ }
+ if (cmd_len > 6) {
+ sens->deassert_enable |= cmd[6];
+ }
+ if (cmd_len > 7) {
+ sens->deassert_enable |= cmd[7] << 8;
+ }
+ break;
+ case 2: /* Disable bits */
+ if (cmd_len > 4) {
+ sens->assert_enable &= ~cmd[4];
+ }
+ if (cmd_len > 5) {
+ sens->assert_enable &= ~(cmd[5] << 8);
+ }
+ if (cmd_len > 6) {
+ sens->deassert_enable &= ~cmd[6];
+ }
+ if (cmd_len > 7) {
+ sens->deassert_enable &= ~(cmd[7] << 8);
+ }
+ break;
+ case 3:
+ rsp[2] = IPMI_CC_INVALID_DATA_FIELD;
+ goto out;
+ }
+ IPMI_SENSOR_SET_RET_STATUS(sens, cmd[3]);
+ out:
+ return;
+}
+
+static void get_sensor_evt_enable(IPMISimBmc *ss,
+ uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len,
+ unsigned int max_rsp_len)
+{
+ IPMISensor *sens;
+
+ IPMI_CHECK_CMD_LEN(3);
+ if ((cmd[2] > MAX_SENSORS) ||
+ !IPMI_SENSOR_GET_PRESENT(ss->sensors + cmd[2])) {
+ rsp[2] = IPMI_CC_REQ_ENTRY_NOT_PRESENT;
+ goto out;
+ }
+ sens = ss->sensors + cmd[2];
+ IPMI_ADD_RSP_DATA(IPMI_SENSOR_GET_RET_STATUS(sens));
+ IPMI_ADD_RSP_DATA(sens->assert_enable & 0xff);
+ IPMI_ADD_RSP_DATA((sens->assert_enable >> 8) & 0xff);
+ IPMI_ADD_RSP_DATA(sens->deassert_enable & 0xff);
+ IPMI_ADD_RSP_DATA((sens->deassert_enable >> 8) & 0xff);
+ out:
+ return;
+}
+
+static void rearm_sensor_evts(IPMISimBmc *ss,
+ uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len,
+ unsigned int max_rsp_len)
+{
+ IPMISensor *sens;
+
+ IPMI_CHECK_CMD_LEN(4);
+ if ((cmd[2] > MAX_SENSORS) ||
+ !IPMI_SENSOR_GET_PRESENT(ss->sensors + cmd[2])) {
+ rsp[2] = IPMI_CC_REQ_ENTRY_NOT_PRESENT;
+ goto out;
+ }
+ sens = ss->sensors + cmd[2];
+
+ if ((cmd[3] & 0x80) == 0) {
+ /* Just clear everything */
+ sens->states = 0;
+ goto out;
+ }
+ out:
+ return;
+}
+
+static void get_sensor_evt_status(IPMISimBmc *ss,
+ uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len,
+ unsigned int max_rsp_len)
+{
+ IPMISensor *sens;
+
+ IPMI_CHECK_CMD_LEN(3);
+ if ((cmd[2] > MAX_SENSORS) ||
+ !IPMI_SENSOR_GET_PRESENT(ss->sensors + cmd[2])) {
+ rsp[2] = IPMI_CC_REQ_ENTRY_NOT_PRESENT;
+ goto out;
+ }
+ sens = ss->sensors + cmd[2];
+ IPMI_ADD_RSP_DATA(sens->reading);
+ IPMI_ADD_RSP_DATA(IPMI_SENSOR_GET_RET_STATUS(sens));
+ IPMI_ADD_RSP_DATA(sens->assert_states & 0xff);
+ IPMI_ADD_RSP_DATA((sens->assert_states >> 8) & 0xff);
+ IPMI_ADD_RSP_DATA(sens->deassert_states & 0xff);
+ IPMI_ADD_RSP_DATA((sens->deassert_states >> 8) & 0xff);
+ out:
+ return;
+}
+
+static void get_sensor_reading(IPMISimBmc *ss,
+ uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len,
+ unsigned int max_rsp_len)
+{
+ IPMISensor *sens;
+
+ IPMI_CHECK_CMD_LEN(3);
+ if ((cmd[2] > MAX_SENSORS) ||
+ !IPMI_SENSOR_GET_PRESENT(ss->sensors + cmd[2])) {
+ rsp[2] = IPMI_CC_REQ_ENTRY_NOT_PRESENT;
+ goto out;
+ }
+ sens = ss->sensors + cmd[2];
+ IPMI_ADD_RSP_DATA(sens->reading);
+ IPMI_ADD_RSP_DATA(IPMI_SENSOR_GET_RET_STATUS(sens));
+ IPMI_ADD_RSP_DATA(sens->states & 0xff);
+ if (IPMI_SENSOR_IS_DISCRETE(sens)) {
+ IPMI_ADD_RSP_DATA((sens->states >> 8) & 0xff);
+ }
+ out:
+ return;
+}
+
+static const IPMICmdHandler chassis_cmds[IPMI_NETFN_CHASSIS_MAXCMD] = {
+ [IPMI_CMD_GET_CHASSIS_CAPABILITIES] = chassis_capabilities,
+ [IPMI_CMD_GET_CHASSIS_STATUS] = chassis_status,
+ [IPMI_CMD_CHASSIS_CONTROL] = chassis_control
+};
+static const IPMINetfn chassis_netfn = {
+ .cmd_nums = IPMI_NETFN_CHASSIS_MAXCMD,
+ .cmd_handlers = chassis_cmds
+};
+
+static const IPMICmdHandler
+sensor_event_cmds[IPMI_NETFN_SENSOR_EVENT_MAXCMD] = {
+ [IPMI_CMD_SET_SENSOR_EVT_ENABLE] = set_sensor_evt_enable,
+ [IPMI_CMD_GET_SENSOR_EVT_ENABLE] = get_sensor_evt_enable,
+ [IPMI_CMD_REARM_SENSOR_EVTS] = rearm_sensor_evts,
+ [IPMI_CMD_GET_SENSOR_EVT_STATUS] = get_sensor_evt_status,
+ [IPMI_CMD_GET_SENSOR_READING] = get_sensor_reading
+};
+static const IPMINetfn sensor_event_netfn = {
+ .cmd_nums = IPMI_NETFN_SENSOR_EVENT_MAXCMD,
+ .cmd_handlers = sensor_event_cmds
+};
+
+static const IPMICmdHandler app_cmds[IPMI_NETFN_APP_MAXCMD] = {
+ [IPMI_CMD_GET_DEVICE_ID] = get_device_id,
+ [IPMI_CMD_SET_BMC_GLOBAL_ENABLES] = set_bmc_global_enables,
+ [IPMI_CMD_GET_BMC_GLOBAL_ENABLES] = get_bmc_global_enables,
+ [IPMI_CMD_CLR_MSG_FLAGS] = clr_msg_flags,
+ [IPMI_CMD_GET_MSG_FLAGS] = get_msg_flags,
+ [IPMI_CMD_READ_EVT_MSG_BUF] = read_evt_msg_buf,
+ [IPMI_CMD_RESET_WATCHDOG_TIMER] = reset_watchdog_timer,
+ [IPMI_CMD_SET_WATCHDOG_TIMER] = set_watchdog_timer,
+ [IPMI_CMD_GET_WATCHDOG_TIMER] = get_watchdog_timer,
+};
+static const IPMINetfn app_netfn = {
+ .cmd_nums = IPMI_NETFN_APP_MAXCMD,
+ .cmd_handlers = app_cmds
+};
+
+static const IPMICmdHandler storage_cmds[IPMI_NETFN_STORAGE_MAXCMD] = {
+ [IPMI_CMD_GET_SDR_REP_INFO] = get_sdr_rep_info,
+ [IPMI_CMD_RESERVE_SDR_REP] = reserve_sdr_rep,
+ [IPMI_CMD_GET_SDR] = get_sdr,
+ [IPMI_CMD_ADD_SDR] = add_sdr,
+ [IPMI_CMD_CLEAR_SDR_REP] = clear_sdr_rep,
+ [IPMI_CMD_GET_SEL_INFO] = get_sel_info,
+ [IPMI_CMD_RESERVE_SEL] = reserve_sel,
+ [IPMI_CMD_GET_SEL_ENTRY] = get_sel_entry,
+ [IPMI_CMD_ADD_SEL_ENTRY] = add_sel_entry,
+ [IPMI_CMD_CLEAR_SEL] = clear_sel,
+ [IPMI_CMD_GET_SEL_TIME] = get_sel_time,
+ [IPMI_CMD_SET_SEL_TIME] = set_sel_time,
+};
+
+static const IPMINetfn storage_netfn = {
+ .cmd_nums = IPMI_NETFN_STORAGE_MAXCMD,
+ .cmd_handlers = storage_cmds
+};
+
+static void register_cmds(IPMISimBmc *s)
+{
+ ipmi_register_netfn(s, IPMI_NETFN_CHASSIS, &chassis_netfn);
+ ipmi_register_netfn(s, IPMI_NETFN_SENSOR_EVENT, &sensor_event_netfn);
+ ipmi_register_netfn(s, IPMI_NETFN_APP, &app_netfn);
+ ipmi_register_netfn(s, IPMI_NETFN_STORAGE, &storage_netfn);
+}
+
+static const uint8_t init_sdrs[] = {
+ /* Watchdog device */
+ 0x00, 0x00, 0x51, 0x02, 40, 0x20, 0x00, 0x00,
+ 0x23, 0x01, 0x63, 0x00, 0x23, 0x6f, 0x0f, 0x01,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc8,
+ 'W', 'a', 't', 'c', 'h', 'd', 'o', 'g',
+ /* End */
+ 0xff, 0xff, 0x00, 0x00, 0x00
+};
+
+static int ipmi_sim_init(IPMIBmc *b)
+{
+ unsigned int i;
+ unsigned int next_recid, recid;
+ IPMISimBmc *ss = IPMI_BMC_SIMULATOR(b);
+
+ ss->bmc_global_enables = (1 << IPMI_BMC_EVENT_LOG_BIT);
+ ss->device_id = 0x20;
+ ss->ipmi_version = 0x02; /* IPMI 2.0 */
+ for (i = 0; i < 4; i++) {
+ ss->sel.last_addition[i] = 0xff;
+ ss->sel.last_clear[i] = 0xff;
+ ss->sdr.last_addition[i] = 0xff;
+ ss->sdr.last_clear[i] = 0xff;
+ }
+
+ next_recid = 0;
+ for (i = 0;;) {
+ int len;
+ if ((i + 5) > sizeof(init_sdrs)) {
+ ipmi_debug("Problem with recid 0x%4.4x\n", i);
+ return 1;
+ }
+ len = init_sdrs[i + 4];
+ recid = init_sdrs[i] | (init_sdrs[i + 1] << 8);
+ if (recid == 0xffff) {
+ break;
+ }
+ if ((i + len) > sizeof(init_sdrs)) {
+ ipmi_debug("Problem with recid 0x%4.4x\n", i);
+ return 1;
+ }
+ if (recid != next_recid) {
+ ipmi_debug("Problem with recid 0x%4.4x\n", i);
+ return 1;
+ }
+ sdr_add_entry(ss, init_sdrs + i, len, NULL);
+ i += len;
+ }
+
+ ipmi_init_sensors_from_sdrs(ss);
+ register_cmds(ss);
+
+ ss->timer = qemu_new_timer_ns(vm_clock, ipmi_timeout, ss);
+ return 0;
+}
+
+static void ipmi_sim_class_init(ObjectClass *klass, void *data)
+{
+ IPMIBmcClass *bk = IPMI_BMC_CLASS(klass);
+
+ bk->init = ipmi_sim_init;
+ bk->handle_command = ipmi_sim_handle_command;
+}
+
+static const TypeInfo ipmi_sim_type = {
+ .name = TYPE_IPMI_BMC_SIMULATOR,
+ .parent = TYPE_IPMI_BMC,
+ .instance_size = sizeof(IPMISimBmc),
+ .class_init = ipmi_sim_class_init,
+};
+
+static void ipmi_sim_register_types(void)
+{
+ type_register_static(&ipmi_sim_type);
+}
+
+type_init(ipmi_sim_register_types)
--
1.7.4.1
^ permalink raw reply related [flat|nested] 20+ messages in thread* [Qemu-devel] [PATCH 13/16] IPMI: Add an external connection simulation interface
2012-09-18 20:00 [Qemu-devel] [PATCH 00/16 v4] Add an IPMI device to qemu minyard
` (11 preceding siblings ...)
2012-09-18 20:00 ` [Qemu-devel] [PATCH 12/16] IPMI: Add a local BMC simulation minyard
@ 2012-09-18 20:00 ` minyard
2013-04-02 11:32 ` Zang Hongyong
2012-09-18 20:00 ` [Qemu-devel] [PATCH 14/16] IPMI: Add tests minyard
` (3 subsequent siblings)
16 siblings, 1 reply; 20+ messages in thread
From: minyard @ 2012-09-18 20:00 UTC (permalink / raw)
To: qemu-devel; +Cc: Corey Minyard
From: Corey Minyard <cminyard@mvista.com>
This adds an interface for IPMI that connects to a remote
BMC over a chardev (generally a TCP socket). The OpenIPMI
lanserv simulator describes this interface, see that for
interface details.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
---
default-configs/i386-softmmu.mak | 1 +
default-configs/x86_64-softmmu.mak | 1 +
hw/Makefile.objs | 1 +
hw/ipmi_extern.c | 475 ++++++++++++++++++++++++++++++++++++
4 files changed, 478 insertions(+), 0 deletions(-)
create mode 100644 hw/ipmi_extern.c
diff --git a/default-configs/i386-softmmu.mak b/default-configs/i386-softmmu.mak
index 8c99d5d..325f92e 100644
--- a/default-configs/i386-softmmu.mak
+++ b/default-configs/i386-softmmu.mak
@@ -12,6 +12,7 @@ CONFIG_ISA_IPMI=y
CONFIG_IPMI_KCS=y
CONFIG_IPMI_BT=y
CONFIG_IPMI_LOCAL=y
+CONFIG_IPMI_EXTERN=y
CONFIG_SERIAL=y
CONFIG_PARALLEL=y
CONFIG_I8254=y
diff --git a/default-configs/x86_64-softmmu.mak b/default-configs/x86_64-softmmu.mak
index 4d01883..2ac9177 100644
--- a/default-configs/x86_64-softmmu.mak
+++ b/default-configs/x86_64-softmmu.mak
@@ -12,6 +12,7 @@ CONFIG_ISA_IPMI=y
CONFIG_IPMI_KCS=y
CONFIG_IPMI_BT=y
CONFIG_IPMI_LOCAL=y
+CONFIG_IPMI_EXTERN=y
CONFIG_SERIAL=y
CONFIG_PARALLEL=y
CONFIG_I8254=y
diff --git a/hw/Makefile.objs b/hw/Makefile.objs
index 65f0ea1..a3f14ff 100644
--- a/hw/Makefile.objs
+++ b/hw/Makefile.objs
@@ -25,6 +25,7 @@ hw-obj-$(CONFIG_ISA_IPMI) += isa_ipmi.o
hw-obj-$(CONFIG_IPMI_KCS) += ipmi_kcs.o
hw-obj-$(CONFIG_IPMI_BT) += ipmi_bt.o
hw-obj-$(CONFIG_IPMI_LOCAL) += ipmi_sim.o
+hw-obj-$(CONFIG_IPMI_EXTERN) += ipmi_extern.o
hw-obj-$(CONFIG_SERIAL) += serial.o
hw-obj-$(CONFIG_PARALLEL) += parallel.o
diff --git a/hw/ipmi_extern.c b/hw/ipmi_extern.c
new file mode 100644
index 0000000..b31aea0
--- /dev/null
+++ b/hw/ipmi_extern.c
@@ -0,0 +1,475 @@
+/*
+ * IPMI BMC external connection
+ *
+ * Copyright (c) 2012 Corey Minyard, MontaVista Software, LLC
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/*
+ * This is designed to connect with OpenIPMI's lanserv serial interface
+ * using the "VM" connection type. See that for details.
+ */
+
+#include <stdint.h>
+#include "qemu-timer.h"
+#include "qemu-char.h"
+#include "ipmi.h"
+
+#define VM_MSG_CHAR 0xA0 /* Marks end of message */
+#define VM_CMD_CHAR 0xA1 /* Marks end of a command */
+#define VM_ESCAPE_CHAR 0xAA /* Set bit 4 from the next byte to 0 */
+
+#define VM_PROTOCOL_VERSION 1
+#define VM_CMD_VERSION 0xff /* A version number byte follows */
+#define VM_CMD_NOATTN 0x00
+#define VM_CMD_ATTN 0x01
+#define VM_CMD_ATTN_IRQ 0x02
+#define VM_CMD_POWEROFF 0x03
+#define VM_CMD_RESET 0x04
+#define VM_CMD_ENABLE_IRQ 0x05 /* Enable/disable the messaging irq */
+#define VM_CMD_DISABLE_IRQ 0x06
+#define VM_CMD_SEND_NMI 0x07
+#define VM_CMD_CAPABILITIES 0x08
+#define VM_CAPABILITIES_POWER 0x01
+#define VM_CAPABILITIES_RESET 0x02
+#define VM_CAPABILITIES_IRQ 0x04
+#define VM_CAPABILITIES_NMI 0x08
+#define VM_CAPABILITIES_ATTN 0x10
+
+#define IPMI_BMC_EXTERN(obj) OBJECT_CHECK(IPMIExternBmc, (obj), \
+ TYPE_IPMI_BMC_EXTERN)
+typedef struct IPMIExternBmc {
+ IPMIBmc parent;
+
+ int connected;
+ int is_listen;
+
+ unsigned char inbuf[MAX_IPMI_MSG_SIZE + 2];
+ unsigned int inpos;
+ int in_escape;
+ int in_too_many;
+ int waiting_rsp;
+ int sending_cmd;
+
+ unsigned char outbuf[(MAX_IPMI_MSG_SIZE + 2) * 2 + 1];
+ unsigned int outpos;
+ unsigned int outlen;
+
+ struct QEMUTimer *extern_timer;
+
+ /* A reset event is pending to be sent upstream. */
+ bool send_reset;
+} IPMIExternBmc;
+
+static int can_receive(void *opaque);
+static void receive(void *opaque, const uint8_t *buf, int size);
+static void chr_event(void *opaque, int event);
+
+static unsigned char
+ipmb_checksum(const unsigned char *data, int size, unsigned char start)
+{
+ unsigned char csum = start;
+
+ for (; size > 0; size--, data++) {
+ csum += *data;
+ }
+ return csum;
+}
+
+static void continue_send(IPMIExternBmc *es)
+{
+ if (es->outlen == 0) {
+ goto check_reset;
+ }
+ send:
+ es->outpos += qemu_chr_fe_write(es->parent.chr, es->outbuf + es->outpos,
+ es->outlen - es->outpos);
+ if (es->outpos < es->outlen) {
+ /* Not fully transmitted, try again in a 10ms */
+ qemu_mod_timer(es->extern_timer,
+ qemu_get_clock_ns(vm_clock) + 10000000);
+ } else {
+ /* Sent */
+ es->outlen = 0;
+ es->outpos = 0;
+ if (!es->sending_cmd) {
+ es->waiting_rsp = 1;
+ } else {
+ es->sending_cmd = 0;
+ }
+ check_reset:
+ if (es->connected && es->send_reset) {
+ /* Send the reset */
+ es->outbuf[0] = VM_CMD_RESET;
+ es->outbuf[1] = VM_CMD_CHAR;
+ es->outlen = 2;
+ es->outpos = 0;
+ es->send_reset = 0;
+ es->sending_cmd = 1;
+ goto send;
+ }
+
+ if (es->waiting_rsp) {
+ /* Make sure we get a response within 4 seconds. */
+ qemu_mod_timer(es->extern_timer,
+ qemu_get_clock_ns(vm_clock) + 4000000000ULL);
+ }
+ }
+ return;
+}
+
+static void extern_timeout(void *opaque)
+{
+ IPMIExternBmc *es = opaque;
+ IPMIInterface *s = es->parent.intf;
+
+ ipmi_lock(s);
+ if (es->connected) {
+ if (es->waiting_rsp && (es->outlen == 0)) {
+ IPMIInterfaceClass *k = IPMI_INTERFACE_GET_CLASS(s);
+ /* The message response timed out, return an error. */
+ es->waiting_rsp = 0;
+ es->inbuf[1] = es->outbuf[1] | 0x04;
+ es->inbuf[2] = es->outbuf[2];
+ es->inbuf[3] = IPMI_CC_TIMEOUT;
+ k->handle_rsp(s, es->outbuf[0], es->inbuf + 1, 3);
+ } else {
+ continue_send(es);
+ }
+ }
+ ipmi_unlock(s);
+}
+
+static void addchar(IPMIExternBmc *es, unsigned char ch)
+{
+ switch (ch) {
+ case VM_MSG_CHAR:
+ case VM_CMD_CHAR:
+ case VM_ESCAPE_CHAR:
+ es->outbuf[es->outlen] = VM_ESCAPE_CHAR;
+ es->outlen++;
+ ch |= 0x10;
+ /* No break */
+
+ default:
+ es->outbuf[es->outlen] = ch;
+ es->outlen++;
+ }
+}
+
+static void ipmi_extern_handle_command(IPMIBmc *b,
+ uint8_t *cmd, unsigned int cmd_len,
+ unsigned int max_cmd_len,
+ uint8_t msg_id)
+{
+ IPMIExternBmc *es = IPMI_BMC_EXTERN(b);
+ IPMIInterface *s = es->parent.intf;
+ uint8_t err = 0, csum;
+ unsigned int i;
+
+ ipmi_lock(s);
+ if (es->outlen) {
+ /* We already have a command queued. Shouldn't ever happen. */
+ fprintf(stderr, "IPMI KCS: Got command when not finished with the"
+ " previous commmand\n");
+ abort();
+ }
+
+ /* If it's too short or it was truncated, return an error. */
+ if (cmd_len < 2) {
+ err = IPMI_CC_REQUEST_DATA_LENGTH_INVALID;
+ } else if ((cmd_len > max_cmd_len) || (cmd_len > MAX_IPMI_MSG_SIZE)) {
+ err = IPMI_CC_REQUEST_DATA_TRUNCATED;
+ } else if (!es->connected) {
+ err = IPMI_CC_BMC_INIT_IN_PROGRESS;
+ }
+ if (err) {
+ IPMIInterfaceClass *k = IPMI_INTERFACE_GET_CLASS(s);
+ unsigned char rsp[3];
+ rsp[0] = cmd[0] | 0x04;
+ rsp[1] = cmd[1];
+ rsp[2] = err;
+ es->waiting_rsp = 0;
+ k->handle_rsp(s, msg_id, rsp, 3);
+ goto out;
+ }
+
+ addchar(es, msg_id);
+ for (i = 0; i < cmd_len; i++) {
+ addchar(es, cmd[i]);
+ }
+ csum = ipmb_checksum(&msg_id, 1, 0);
+ addchar(es, -ipmb_checksum(cmd, cmd_len, csum));
+
+ es->outbuf[es->outlen] = VM_MSG_CHAR;
+ es->outlen++;
+
+ /* Start the transmit */
+ continue_send(es);
+
+ out:
+ ipmi_unlock(s);
+ return;
+}
+
+static void handle_hw_op(IPMIExternBmc *es, unsigned char hw_op)
+{
+ IPMIInterface *s = es->parent.intf;
+ IPMIInterfaceClass *k = IPMI_INTERFACE_GET_CLASS(s);
+
+ switch (hw_op) {
+ case VM_CMD_VERSION:
+ /* We only support one version at this time. */
+ break;
+
+ case VM_CMD_NOATTN:
+ k->set_atn(s, 0, 0);
+ break;
+
+ case VM_CMD_ATTN:
+ k->set_atn(s, 1, 0);
+ break;
+
+ case VM_CMD_ATTN_IRQ:
+ k->set_atn(s, 1, 1);
+ break;
+
+ case VM_CMD_POWEROFF:
+ k->do_hw_op(s, IPMI_POWEROFF_CHASSIS, 0);
+ break;
+
+ case VM_CMD_RESET:
+ k->do_hw_op(s, IPMI_RESET_CHASSIS, 0);
+ break;
+
+ case VM_CMD_ENABLE_IRQ:
+ k->set_irq_enable(s, 1);
+ break;
+
+ case VM_CMD_DISABLE_IRQ:
+ k->set_irq_enable(s, 0);
+ break;
+
+ case VM_CMD_SEND_NMI:
+ k->do_hw_op(s, IPMI_SEND_NMI, 0);
+ break;
+ }
+}
+
+static void handle_msg(IPMIExternBmc *es)
+{
+ IPMIInterfaceClass *k = IPMI_INTERFACE_GET_CLASS(es->parent.intf);
+
+ if (es->in_escape) {
+ ipmi_debug("msg escape not ended\n");
+ return;
+ }
+ if (es->inpos < 5) {
+ ipmi_debug("msg too short\n");
+ return;
+ }
+ if (es->in_too_many) {
+ es->inbuf[3] = IPMI_CC_REQUEST_DATA_TRUNCATED;
+ es->inpos = 4;
+ } else if (ipmb_checksum(es->inbuf, es->inpos, 0) != 0) {
+ ipmi_debug("msg checksum failure\n");
+ return;
+ } else {
+ es->inpos--; /* Remove checkum */
+ }
+
+ qemu_del_timer(es->extern_timer);
+ es->waiting_rsp = 0;
+ k->handle_rsp(es->parent.intf, es->inbuf[0], es->inbuf + 1, es->inpos - 1);
+}
+
+static int can_receive(void *opaque)
+{
+ return 1;
+}
+
+static void receive(void *opaque, const uint8_t *buf, int size)
+{
+ IPMIExternBmc *es = opaque;
+ IPMIInterface *s = es->parent.intf;
+ int i;
+ unsigned char hw_op;
+
+ ipmi_lock(s);
+ for (i = 0; i < size; i++) {
+ unsigned char ch = buf[i];
+
+ switch (ch) {
+ case VM_MSG_CHAR:
+ handle_msg(es);
+ es->in_too_many = 0;
+ es->inpos = 0;
+ break;
+
+ case VM_CMD_CHAR:
+ if (es->in_too_many) {
+ ipmi_debug("cmd in too many\n");
+ es->in_too_many = 0;
+ es->inpos = 0;
+ break;
+ }
+ if (es->in_escape) {
+ ipmi_debug("cmd in escape\n");
+ es->in_too_many = 0;
+ es->inpos = 0;
+ es->in_escape = 0;
+ break;
+ }
+ es->in_too_many = 0;
+ if (es->inpos < 1) {
+ break;
+ }
+ hw_op = es->inbuf[0];
+ es->inpos = 0;
+ goto out_hw_op;
+ break;
+
+ case VM_ESCAPE_CHAR:
+ es->in_escape = 1;
+ break;
+
+ default:
+ if (es->in_escape) {
+ ch &= ~0x10;
+ es->in_escape = 0;
+ }
+ if (es->in_too_many) {
+ break;
+ }
+ if (es->inpos >= sizeof(es->inbuf)) {
+ es->in_too_many = 1;
+ break;
+ }
+ es->inbuf[es->inpos] = ch;
+ es->inpos++;
+ break;
+ }
+ }
+ ipmi_unlock(s);
+ return;
+
+ out_hw_op:
+ ipmi_unlock(s);
+ /*
+ * We don't want to handle hardware operations while holding the
+ * lock, that may call back into this code to report a reset.
+ */
+ handle_hw_op(es, hw_op);
+}
+
+static void chr_event(void *opaque, int event)
+{
+ IPMIExternBmc *es = opaque;
+ IPMIInterface *s = es->parent.intf;
+ IPMIInterfaceClass *k = IPMI_INTERFACE_GET_CLASS(s);
+ unsigned char v;
+
+ ipmi_lock(s);
+ switch (event) {
+ case CHR_EVENT_OPENED:
+ es->connected = 1;
+ es->outpos = 0;
+ es->outlen = 0;
+ addchar(es, VM_CMD_VERSION);
+ addchar(es, VM_PROTOCOL_VERSION);
+ es->outbuf[es->outlen] = VM_CMD_CHAR;
+ es->outlen++;
+ addchar(es, VM_CMD_CAPABILITIES);
+ v = VM_CAPABILITIES_IRQ | VM_CAPABILITIES_ATTN;
+ if (k->do_hw_op(es->parent.intf, IPMI_POWEROFF_CHASSIS, 1) == 0) {
+ v |= VM_CAPABILITIES_POWER;
+ }
+ if (k->do_hw_op(es->parent.intf, IPMI_RESET_CHASSIS, 1) == 0) {
+ v |= VM_CAPABILITIES_RESET;
+ }
+ if (k->do_hw_op(es->parent.intf, IPMI_SEND_NMI, 1) == 0) {
+ v |= VM_CAPABILITIES_NMI;
+ }
+ addchar(es, v);
+ es->outbuf[es->outlen] = VM_CMD_CHAR;
+ es->outlen++;
+ es->sending_cmd = 0;
+ continue_send(es);
+ break;
+
+ case CHR_EVENT_CLOSED:
+ if (!es->connected) {
+ return;
+ }
+ es->connected = 0;
+ if (es->waiting_rsp) {
+ es->waiting_rsp = 0;
+ es->inbuf[1] = es->outbuf[1] | 0x04;
+ es->inbuf[2] = es->outbuf[2];
+ es->inbuf[3] = IPMI_CC_BMC_INIT_IN_PROGRESS;
+ k->handle_rsp(s, es->outbuf[0], es->inbuf + 1, 3);
+ }
+ break;
+ }
+ ipmi_unlock(s);
+}
+
+static void ipmi_extern_handle_reset(IPMIBmc *b)
+{
+ IPMIExternBmc *es = IPMI_BMC_EXTERN(b);
+ IPMIInterface *s = es->parent.intf;
+
+ ipmi_lock(s);
+ es->send_reset = 1;
+ continue_send(es);
+ ipmi_unlock(s);
+}
+
+static int ipmi_extern_init(IPMIBmc *b)
+{
+ IPMIExternBmc *es = IPMI_BMC_EXTERN(b);
+
+ es->extern_timer = qemu_new_timer_ns(vm_clock, extern_timeout, es);
+ qemu_chr_add_handlers(es->parent.chr, can_receive, receive, chr_event, es);
+ return 0;
+}
+
+static void ipmi_extern_class_init(ObjectClass *klass, void *data)
+{
+ IPMIBmcClass *bk = IPMI_BMC_CLASS(klass);
+
+ bk->init = ipmi_extern_init;
+ bk->handle_command = ipmi_extern_handle_command;
+ bk->handle_reset = ipmi_extern_handle_reset;
+}
+
+static const TypeInfo ipmi_extern_type = {
+ .name = TYPE_IPMI_BMC_EXTERN,
+ .parent = TYPE_IPMI_BMC,
+ .instance_size = sizeof(IPMIExternBmc),
+ .class_init = ipmi_extern_class_init,
+};
+
+static void ipmi_extern_register_types(void)
+{
+ type_register_static(&ipmi_extern_type);
+}
+
+type_init(ipmi_extern_register_types)
--
1.7.4.1
^ permalink raw reply related [flat|nested] 20+ messages in thread* Re: [Qemu-devel] [PATCH 13/16] IPMI: Add an external connection simulation interface
2012-09-18 20:00 ` [Qemu-devel] [PATCH 13/16] IPMI: Add an external connection simulation interface minyard
@ 2013-04-02 11:32 ` Zang Hongyong
2013-04-03 13:43 ` Corey Minyard
0 siblings, 1 reply; 20+ messages in thread
From: Zang Hongyong @ 2013-04-02 11:32 UTC (permalink / raw)
To: minyard; +Cc: Corey Minyard, qemu-devel
What's the status of the IPMI patch? When will be merged into qemu?
With this patch, an external watchdog can be used for VM HA, even
through qemu is not healthy.
This is more attractive to qemu's own watchdog (ib700 or 6300esb).
On 2012/9/19 4:00, minyard@acm.org wrote:
> From: Corey Minyard <cminyard@mvista.com>
>
> This adds an interface for IPMI that connects to a remote
> BMC over a chardev (generally a TCP socket). The OpenIPMI
> lanserv simulator describes this interface, see that for
> interface details.
>
> Signed-off-by: Corey Minyard <cminyard@mvista.com>
> ---
> default-configs/i386-softmmu.mak | 1 +
> default-configs/x86_64-softmmu.mak | 1 +
> hw/Makefile.objs | 1 +
> hw/ipmi_extern.c | 475 ++++++++++++++++++++++++++++++++++++
> 4 files changed, 478 insertions(+), 0 deletions(-)
> create mode 100644 hw/ipmi_extern.c
>
> diff --git a/default-configs/i386-softmmu.mak b/default-configs/i386-softmmu.mak
> index 8c99d5d..325f92e 100644
> --- a/default-configs/i386-softmmu.mak
> +++ b/default-configs/i386-softmmu.mak
> @@ -12,6 +12,7 @@ CONFIG_ISA_IPMI=y
> CONFIG_IPMI_KCS=y
> CONFIG_IPMI_BT=y
> CONFIG_IPMI_LOCAL=y
> +CONFIG_IPMI_EXTERN=y
> CONFIG_SERIAL=y
> CONFIG_PARALLEL=y
> CONFIG_I8254=y
> diff --git a/default-configs/x86_64-softmmu.mak b/default-configs/x86_64-softmmu.mak
> index 4d01883..2ac9177 100644
> --- a/default-configs/x86_64-softmmu.mak
> +++ b/default-configs/x86_64-softmmu.mak
> @@ -12,6 +12,7 @@ CONFIG_ISA_IPMI=y
> CONFIG_IPMI_KCS=y
> CONFIG_IPMI_BT=y
> CONFIG_IPMI_LOCAL=y
> +CONFIG_IPMI_EXTERN=y
> CONFIG_SERIAL=y
> CONFIG_PARALLEL=y
> CONFIG_I8254=y
> diff --git a/hw/Makefile.objs b/hw/Makefile.objs
> index 65f0ea1..a3f14ff 100644
> --- a/hw/Makefile.objs
> +++ b/hw/Makefile.objs
> @@ -25,6 +25,7 @@ hw-obj-$(CONFIG_ISA_IPMI) += isa_ipmi.o
> hw-obj-$(CONFIG_IPMI_KCS) += ipmi_kcs.o
> hw-obj-$(CONFIG_IPMI_BT) += ipmi_bt.o
> hw-obj-$(CONFIG_IPMI_LOCAL) += ipmi_sim.o
> +hw-obj-$(CONFIG_IPMI_EXTERN) += ipmi_extern.o
>
> hw-obj-$(CONFIG_SERIAL) += serial.o
> hw-obj-$(CONFIG_PARALLEL) += parallel.o
> diff --git a/hw/ipmi_extern.c b/hw/ipmi_extern.c
> new file mode 100644
> index 0000000..b31aea0
> --- /dev/null
> +++ b/hw/ipmi_extern.c
> @@ -0,0 +1,475 @@
> +/*
> + * IPMI BMC external connection
> + *
> + * Copyright (c) 2012 Corey Minyard, MontaVista Software, LLC
> + *
> + * Permission is hereby granted, free of charge, to any person obtaining a copy
> + * of this software and associated documentation files (the "Software"), to deal
> + * in the Software without restriction, including without limitation the rights
> + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
> + * copies of the Software, and to permit persons to whom the Software is
> + * furnished to do so, subject to the following conditions:
> + *
> + * The above copyright notice and this permission notice shall be included in
> + * all copies or substantial portions of the Software.
> + *
> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
> + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
> + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
> + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
> + * THE SOFTWARE.
> + */
> +
> +/*
> + * This is designed to connect with OpenIPMI's lanserv serial interface
> + * using the "VM" connection type. See that for details.
> + */
> +
> +#include <stdint.h>
> +#include "qemu-timer.h"
> +#include "qemu-char.h"
> +#include "ipmi.h"
> +
> +#define VM_MSG_CHAR 0xA0 /* Marks end of message */
> +#define VM_CMD_CHAR 0xA1 /* Marks end of a command */
> +#define VM_ESCAPE_CHAR 0xAA /* Set bit 4 from the next byte to 0 */
> +
> +#define VM_PROTOCOL_VERSION 1
> +#define VM_CMD_VERSION 0xff /* A version number byte follows */
> +#define VM_CMD_NOATTN 0x00
> +#define VM_CMD_ATTN 0x01
> +#define VM_CMD_ATTN_IRQ 0x02
> +#define VM_CMD_POWEROFF 0x03
> +#define VM_CMD_RESET 0x04
> +#define VM_CMD_ENABLE_IRQ 0x05 /* Enable/disable the messaging irq */
> +#define VM_CMD_DISABLE_IRQ 0x06
> +#define VM_CMD_SEND_NMI 0x07
> +#define VM_CMD_CAPABILITIES 0x08
> +#define VM_CAPABILITIES_POWER 0x01
> +#define VM_CAPABILITIES_RESET 0x02
> +#define VM_CAPABILITIES_IRQ 0x04
> +#define VM_CAPABILITIES_NMI 0x08
> +#define VM_CAPABILITIES_ATTN 0x10
> +
> +#define IPMI_BMC_EXTERN(obj) OBJECT_CHECK(IPMIExternBmc, (obj), \
> + TYPE_IPMI_BMC_EXTERN)
> +typedef struct IPMIExternBmc {
> + IPMIBmc parent;
> +
> + int connected;
> + int is_listen;
> +
> + unsigned char inbuf[MAX_IPMI_MSG_SIZE + 2];
> + unsigned int inpos;
> + int in_escape;
> + int in_too_many;
> + int waiting_rsp;
> + int sending_cmd;
> +
> + unsigned char outbuf[(MAX_IPMI_MSG_SIZE + 2) * 2 + 1];
> + unsigned int outpos;
> + unsigned int outlen;
> +
> + struct QEMUTimer *extern_timer;
> +
> + /* A reset event is pending to be sent upstream. */
> + bool send_reset;
> +} IPMIExternBmc;
> +
> +static int can_receive(void *opaque);
> +static void receive(void *opaque, const uint8_t *buf, int size);
> +static void chr_event(void *opaque, int event);
> +
> +static unsigned char
> +ipmb_checksum(const unsigned char *data, int size, unsigned char start)
> +{
> + unsigned char csum = start;
> +
> + for (; size > 0; size--, data++) {
> + csum += *data;
> + }
> + return csum;
> +}
> +
> +static void continue_send(IPMIExternBmc *es)
> +{
> + if (es->outlen == 0) {
> + goto check_reset;
> + }
> + send:
> + es->outpos += qemu_chr_fe_write(es->parent.chr, es->outbuf + es->outpos,
> + es->outlen - es->outpos);
> + if (es->outpos < es->outlen) {
> + /* Not fully transmitted, try again in a 10ms */
> + qemu_mod_timer(es->extern_timer,
> + qemu_get_clock_ns(vm_clock) + 10000000);
> + } else {
> + /* Sent */
> + es->outlen = 0;
> + es->outpos = 0;
> + if (!es->sending_cmd) {
> + es->waiting_rsp = 1;
> + } else {
> + es->sending_cmd = 0;
> + }
> + check_reset:
> + if (es->connected && es->send_reset) {
> + /* Send the reset */
> + es->outbuf[0] = VM_CMD_RESET;
> + es->outbuf[1] = VM_CMD_CHAR;
> + es->outlen = 2;
> + es->outpos = 0;
> + es->send_reset = 0;
> + es->sending_cmd = 1;
> + goto send;
> + }
> +
> + if (es->waiting_rsp) {
> + /* Make sure we get a response within 4 seconds. */
> + qemu_mod_timer(es->extern_timer,
> + qemu_get_clock_ns(vm_clock) + 4000000000ULL);
> + }
> + }
> + return;
> +}
> +
> +static void extern_timeout(void *opaque)
> +{
> + IPMIExternBmc *es = opaque;
> + IPMIInterface *s = es->parent.intf;
> +
> + ipmi_lock(s);
> + if (es->connected) {
> + if (es->waiting_rsp && (es->outlen == 0)) {
> + IPMIInterfaceClass *k = IPMI_INTERFACE_GET_CLASS(s);
> + /* The message response timed out, return an error. */
> + es->waiting_rsp = 0;
> + es->inbuf[1] = es->outbuf[1] | 0x04;
> + es->inbuf[2] = es->outbuf[2];
> + es->inbuf[3] = IPMI_CC_TIMEOUT;
> + k->handle_rsp(s, es->outbuf[0], es->inbuf + 1, 3);
> + } else {
> + continue_send(es);
> + }
> + }
> + ipmi_unlock(s);
> +}
> +
> +static void addchar(IPMIExternBmc *es, unsigned char ch)
> +{
> + switch (ch) {
> + case VM_MSG_CHAR:
> + case VM_CMD_CHAR:
> + case VM_ESCAPE_CHAR:
> + es->outbuf[es->outlen] = VM_ESCAPE_CHAR;
> + es->outlen++;
> + ch |= 0x10;
> + /* No break */
> +
> + default:
> + es->outbuf[es->outlen] = ch;
> + es->outlen++;
> + }
> +}
> +
> +static void ipmi_extern_handle_command(IPMIBmc *b,
> + uint8_t *cmd, unsigned int cmd_len,
> + unsigned int max_cmd_len,
> + uint8_t msg_id)
> +{
> + IPMIExternBmc *es = IPMI_BMC_EXTERN(b);
> + IPMIInterface *s = es->parent.intf;
> + uint8_t err = 0, csum;
> + unsigned int i;
> +
> + ipmi_lock(s);
> + if (es->outlen) {
> + /* We already have a command queued. Shouldn't ever happen. */
> + fprintf(stderr, "IPMI KCS: Got command when not finished with the"
> + " previous commmand\n");
> + abort();
> + }
> +
> + /* If it's too short or it was truncated, return an error. */
> + if (cmd_len < 2) {
> + err = IPMI_CC_REQUEST_DATA_LENGTH_INVALID;
> + } else if ((cmd_len > max_cmd_len) || (cmd_len > MAX_IPMI_MSG_SIZE)) {
> + err = IPMI_CC_REQUEST_DATA_TRUNCATED;
> + } else if (!es->connected) {
> + err = IPMI_CC_BMC_INIT_IN_PROGRESS;
> + }
> + if (err) {
> + IPMIInterfaceClass *k = IPMI_INTERFACE_GET_CLASS(s);
> + unsigned char rsp[3];
> + rsp[0] = cmd[0] | 0x04;
> + rsp[1] = cmd[1];
> + rsp[2] = err;
> + es->waiting_rsp = 0;
> + k->handle_rsp(s, msg_id, rsp, 3);
> + goto out;
> + }
> +
> + addchar(es, msg_id);
> + for (i = 0; i < cmd_len; i++) {
> + addchar(es, cmd[i]);
> + }
> + csum = ipmb_checksum(&msg_id, 1, 0);
> + addchar(es, -ipmb_checksum(cmd, cmd_len, csum));
> +
> + es->outbuf[es->outlen] = VM_MSG_CHAR;
> + es->outlen++;
> +
> + /* Start the transmit */
> + continue_send(es);
> +
> + out:
> + ipmi_unlock(s);
> + return;
> +}
> +
> +static void handle_hw_op(IPMIExternBmc *es, unsigned char hw_op)
> +{
> + IPMIInterface *s = es->parent.intf;
> + IPMIInterfaceClass *k = IPMI_INTERFACE_GET_CLASS(s);
> +
> + switch (hw_op) {
> + case VM_CMD_VERSION:
> + /* We only support one version at this time. */
> + break;
> +
> + case VM_CMD_NOATTN:
> + k->set_atn(s, 0, 0);
> + break;
> +
> + case VM_CMD_ATTN:
> + k->set_atn(s, 1, 0);
> + break;
> +
> + case VM_CMD_ATTN_IRQ:
> + k->set_atn(s, 1, 1);
> + break;
> +
> + case VM_CMD_POWEROFF:
> + k->do_hw_op(s, IPMI_POWEROFF_CHASSIS, 0);
> + break;
> +
> + case VM_CMD_RESET:
> + k->do_hw_op(s, IPMI_RESET_CHASSIS, 0);
> + break;
> +
> + case VM_CMD_ENABLE_IRQ:
> + k->set_irq_enable(s, 1);
> + break;
> +
> + case VM_CMD_DISABLE_IRQ:
> + k->set_irq_enable(s, 0);
> + break;
> +
> + case VM_CMD_SEND_NMI:
> + k->do_hw_op(s, IPMI_SEND_NMI, 0);
> + break;
> + }
> +}
> +
> +static void handle_msg(IPMIExternBmc *es)
> +{
> + IPMIInterfaceClass *k = IPMI_INTERFACE_GET_CLASS(es->parent.intf);
> +
> + if (es->in_escape) {
> + ipmi_debug("msg escape not ended\n");
> + return;
> + }
> + if (es->inpos < 5) {
> + ipmi_debug("msg too short\n");
> + return;
> + }
> + if (es->in_too_many) {
> + es->inbuf[3] = IPMI_CC_REQUEST_DATA_TRUNCATED;
> + es->inpos = 4;
> + } else if (ipmb_checksum(es->inbuf, es->inpos, 0) != 0) {
> + ipmi_debug("msg checksum failure\n");
> + return;
> + } else {
> + es->inpos--; /* Remove checkum */
> + }
> +
> + qemu_del_timer(es->extern_timer);
> + es->waiting_rsp = 0;
> + k->handle_rsp(es->parent.intf, es->inbuf[0], es->inbuf + 1, es->inpos - 1);
> +}
> +
> +static int can_receive(void *opaque)
> +{
> + return 1;
> +}
> +
> +static void receive(void *opaque, const uint8_t *buf, int size)
> +{
> + IPMIExternBmc *es = opaque;
> + IPMIInterface *s = es->parent.intf;
> + int i;
> + unsigned char hw_op;
> +
> + ipmi_lock(s);
> + for (i = 0; i < size; i++) {
> + unsigned char ch = buf[i];
> +
> + switch (ch) {
> + case VM_MSG_CHAR:
> + handle_msg(es);
> + es->in_too_many = 0;
> + es->inpos = 0;
> + break;
> +
> + case VM_CMD_CHAR:
> + if (es->in_too_many) {
> + ipmi_debug("cmd in too many\n");
> + es->in_too_many = 0;
> + es->inpos = 0;
> + break;
> + }
> + if (es->in_escape) {
> + ipmi_debug("cmd in escape\n");
> + es->in_too_many = 0;
> + es->inpos = 0;
> + es->in_escape = 0;
> + break;
> + }
> + es->in_too_many = 0;
> + if (es->inpos < 1) {
> + break;
> + }
> + hw_op = es->inbuf[0];
> + es->inpos = 0;
> + goto out_hw_op;
> + break;
> +
> + case VM_ESCAPE_CHAR:
> + es->in_escape = 1;
> + break;
> +
> + default:
> + if (es->in_escape) {
> + ch &= ~0x10;
> + es->in_escape = 0;
> + }
> + if (es->in_too_many) {
> + break;
> + }
> + if (es->inpos >= sizeof(es->inbuf)) {
> + es->in_too_many = 1;
> + break;
> + }
> + es->inbuf[es->inpos] = ch;
> + es->inpos++;
> + break;
> + }
> + }
> + ipmi_unlock(s);
> + return;
> +
> + out_hw_op:
> + ipmi_unlock(s);
> + /*
> + * We don't want to handle hardware operations while holding the
> + * lock, that may call back into this code to report a reset.
> + */
> + handle_hw_op(es, hw_op);
> +}
> +
> +static void chr_event(void *opaque, int event)
> +{
> + IPMIExternBmc *es = opaque;
> + IPMIInterface *s = es->parent.intf;
> + IPMIInterfaceClass *k = IPMI_INTERFACE_GET_CLASS(s);
> + unsigned char v;
> +
> + ipmi_lock(s);
> + switch (event) {
> + case CHR_EVENT_OPENED:
> + es->connected = 1;
> + es->outpos = 0;
> + es->outlen = 0;
> + addchar(es, VM_CMD_VERSION);
> + addchar(es, VM_PROTOCOL_VERSION);
> + es->outbuf[es->outlen] = VM_CMD_CHAR;
> + es->outlen++;
> + addchar(es, VM_CMD_CAPABILITIES);
> + v = VM_CAPABILITIES_IRQ | VM_CAPABILITIES_ATTN;
> + if (k->do_hw_op(es->parent.intf, IPMI_POWEROFF_CHASSIS, 1) == 0) {
> + v |= VM_CAPABILITIES_POWER;
> + }
> + if (k->do_hw_op(es->parent.intf, IPMI_RESET_CHASSIS, 1) == 0) {
> + v |= VM_CAPABILITIES_RESET;
> + }
> + if (k->do_hw_op(es->parent.intf, IPMI_SEND_NMI, 1) == 0) {
> + v |= VM_CAPABILITIES_NMI;
> + }
> + addchar(es, v);
> + es->outbuf[es->outlen] = VM_CMD_CHAR;
> + es->outlen++;
> + es->sending_cmd = 0;
> + continue_send(es);
> + break;
> +
> + case CHR_EVENT_CLOSED:
> + if (!es->connected) {
> + return;
> + }
> + es->connected = 0;
> + if (es->waiting_rsp) {
> + es->waiting_rsp = 0;
> + es->inbuf[1] = es->outbuf[1] | 0x04;
> + es->inbuf[2] = es->outbuf[2];
> + es->inbuf[3] = IPMI_CC_BMC_INIT_IN_PROGRESS;
> + k->handle_rsp(s, es->outbuf[0], es->inbuf + 1, 3);
> + }
> + break;
> + }
> + ipmi_unlock(s);
> +}
> +
> +static void ipmi_extern_handle_reset(IPMIBmc *b)
> +{
> + IPMIExternBmc *es = IPMI_BMC_EXTERN(b);
> + IPMIInterface *s = es->parent.intf;
> +
> + ipmi_lock(s);
> + es->send_reset = 1;
> + continue_send(es);
> + ipmi_unlock(s);
> +}
> +
> +static int ipmi_extern_init(IPMIBmc *b)
> +{
> + IPMIExternBmc *es = IPMI_BMC_EXTERN(b);
> +
> + es->extern_timer = qemu_new_timer_ns(vm_clock, extern_timeout, es);
> + qemu_chr_add_handlers(es->parent.chr, can_receive, receive, chr_event, es);
> + return 0;
> +}
> +
> +static void ipmi_extern_class_init(ObjectClass *klass, void *data)
> +{
> + IPMIBmcClass *bk = IPMI_BMC_CLASS(klass);
> +
> + bk->init = ipmi_extern_init;
> + bk->handle_command = ipmi_extern_handle_command;
> + bk->handle_reset = ipmi_extern_handle_reset;
> +}
> +
> +static const TypeInfo ipmi_extern_type = {
> + .name = TYPE_IPMI_BMC_EXTERN,
> + .parent = TYPE_IPMI_BMC,
> + .instance_size = sizeof(IPMIExternBmc),
> + .class_init = ipmi_extern_class_init,
> +};
> +
> +static void ipmi_extern_register_types(void)
> +{
> + type_register_static(&ipmi_extern_type);
> +}
> +
> +type_init(ipmi_extern_register_types)
^ permalink raw reply [flat|nested] 20+ messages in thread* Re: [Qemu-devel] [PATCH 13/16] IPMI: Add an external connection simulation interface
2013-04-02 11:32 ` Zang Hongyong
@ 2013-04-03 13:43 ` Corey Minyard
0 siblings, 0 replies; 20+ messages in thread
From: Corey Minyard @ 2013-04-03 13:43 UTC (permalink / raw)
To: Zang Hongyong; +Cc: Corey Minyard, qemu-devel
On 04/02/2013 06:32 AM, Zang Hongyong wrote:
> What's the status of the IPMI patch? When will be merged into qemu?
> With this patch, an external watchdog can be used for VM HA, even
> through qemu is not healthy.
> This is more attractive to qemu's own watchdog (ib700 or 6300esb).
I haven't been working on this, I've had other things to do. I'll
probably eventually get to it.
The main issue I was having is getting the ACPI tables in for the
device. I believe there have been some changes that should make
that easier.
-corey
>
> On 2012/9/19 4:00, minyard@acm.org wrote:
>> From: Corey Minyard <cminyard@mvista.com>
>>
>> This adds an interface for IPMI that connects to a remote
>> BMC over a chardev (generally a TCP socket). The OpenIPMI
>> lanserv simulator describes this interface, see that for
>> interface details.
>>
>> Signed-off-by: Corey Minyard <cminyard@mvista.com>
>> ---
>> default-configs/i386-softmmu.mak | 1 +
>> default-configs/x86_64-softmmu.mak | 1 +
>> hw/Makefile.objs | 1 +
>> hw/ipmi_extern.c | 475 ++++++++++++++++++++++++++++++++++++
>> 4 files changed, 478 insertions(+), 0 deletions(-)
>> create mode 100644 hw/ipmi_extern.c
>>
>> diff --git a/default-configs/i386-softmmu.mak b/default-configs/i386-softmmu.mak
>> index 8c99d5d..325f92e 100644
>> --- a/default-configs/i386-softmmu.mak
>> +++ b/default-configs/i386-softmmu.mak
>> @@ -12,6 +12,7 @@ CONFIG_ISA_IPMI=y
>> CONFIG_IPMI_KCS=y
>> CONFIG_IPMI_BT=y
>> CONFIG_IPMI_LOCAL=y
>> +CONFIG_IPMI_EXTERN=y
>> CONFIG_SERIAL=y
>> CONFIG_PARALLEL=y
>> CONFIG_I8254=y
>> diff --git a/default-configs/x86_64-softmmu.mak b/default-configs/x86_64-softmmu.mak
>> index 4d01883..2ac9177 100644
>> --- a/default-configs/x86_64-softmmu.mak
>> +++ b/default-configs/x86_64-softmmu.mak
>> @@ -12,6 +12,7 @@ CONFIG_ISA_IPMI=y
>> CONFIG_IPMI_KCS=y
>> CONFIG_IPMI_BT=y
>> CONFIG_IPMI_LOCAL=y
>> +CONFIG_IPMI_EXTERN=y
>> CONFIG_SERIAL=y
>> CONFIG_PARALLEL=y
>> CONFIG_I8254=y
>> diff --git a/hw/Makefile.objs b/hw/Makefile.objs
>> index 65f0ea1..a3f14ff 100644
>> --- a/hw/Makefile.objs
>> +++ b/hw/Makefile.objs
>> @@ -25,6 +25,7 @@ hw-obj-$(CONFIG_ISA_IPMI) += isa_ipmi.o
>> hw-obj-$(CONFIG_IPMI_KCS) += ipmi_kcs.o
>> hw-obj-$(CONFIG_IPMI_BT) += ipmi_bt.o
>> hw-obj-$(CONFIG_IPMI_LOCAL) += ipmi_sim.o
>> +hw-obj-$(CONFIG_IPMI_EXTERN) += ipmi_extern.o
>>
>> hw-obj-$(CONFIG_SERIAL) += serial.o
>> hw-obj-$(CONFIG_PARALLEL) += parallel.o
>> diff --git a/hw/ipmi_extern.c b/hw/ipmi_extern.c
>> new file mode 100644
>> index 0000000..b31aea0
>> --- /dev/null
>> +++ b/hw/ipmi_extern.c
>> @@ -0,0 +1,475 @@
>> +/*
>> + * IPMI BMC external connection
>> + *
>> + * Copyright (c) 2012 Corey Minyard, MontaVista Software, LLC
>> + *
>> + * Permission is hereby granted, free of charge, to any person obtaining a copy
>> + * of this software and associated documentation files (the "Software"), to deal
>> + * in the Software without restriction, including without limitation the rights
>> + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
>> + * copies of the Software, and to permit persons to whom the Software is
>> + * furnished to do so, subject to the following conditions:
>> + *
>> + * The above copyright notice and this permission notice shall be included in
>> + * all copies or substantial portions of the Software.
>> + *
>> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
>> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
>> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
>> + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
>> + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
>> + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
>> + * THE SOFTWARE.
>> + */
>> +
>> +/*
>> + * This is designed to connect with OpenIPMI's lanserv serial interface
>> + * using the "VM" connection type. See that for details.
>> + */
>> +
>> +#include <stdint.h>
>> +#include "qemu-timer.h"
>> +#include "qemu-char.h"
>> +#include "ipmi.h"
>> +
>> +#define VM_MSG_CHAR 0xA0 /* Marks end of message */
>> +#define VM_CMD_CHAR 0xA1 /* Marks end of a command */
>> +#define VM_ESCAPE_CHAR 0xAA /* Set bit 4 from the next byte to 0 */
>> +
>> +#define VM_PROTOCOL_VERSION 1
>> +#define VM_CMD_VERSION 0xff /* A version number byte follows */
>> +#define VM_CMD_NOATTN 0x00
>> +#define VM_CMD_ATTN 0x01
>> +#define VM_CMD_ATTN_IRQ 0x02
>> +#define VM_CMD_POWEROFF 0x03
>> +#define VM_CMD_RESET 0x04
>> +#define VM_CMD_ENABLE_IRQ 0x05 /* Enable/disable the messaging irq */
>> +#define VM_CMD_DISABLE_IRQ 0x06
>> +#define VM_CMD_SEND_NMI 0x07
>> +#define VM_CMD_CAPABILITIES 0x08
>> +#define VM_CAPABILITIES_POWER 0x01
>> +#define VM_CAPABILITIES_RESET 0x02
>> +#define VM_CAPABILITIES_IRQ 0x04
>> +#define VM_CAPABILITIES_NMI 0x08
>> +#define VM_CAPABILITIES_ATTN 0x10
>> +
>> +#define IPMI_BMC_EXTERN(obj) OBJECT_CHECK(IPMIExternBmc, (obj), \
>> + TYPE_IPMI_BMC_EXTERN)
>> +typedef struct IPMIExternBmc {
>> + IPMIBmc parent;
>> +
>> + int connected;
>> + int is_listen;
>> +
>> + unsigned char inbuf[MAX_IPMI_MSG_SIZE + 2];
>> + unsigned int inpos;
>> + int in_escape;
>> + int in_too_many;
>> + int waiting_rsp;
>> + int sending_cmd;
>> +
>> + unsigned char outbuf[(MAX_IPMI_MSG_SIZE + 2) * 2 + 1];
>> + unsigned int outpos;
>> + unsigned int outlen;
>> +
>> + struct QEMUTimer *extern_timer;
>> +
>> + /* A reset event is pending to be sent upstream. */
>> + bool send_reset;
>> +} IPMIExternBmc;
>> +
>> +static int can_receive(void *opaque);
>> +static void receive(void *opaque, const uint8_t *buf, int size);
>> +static void chr_event(void *opaque, int event);
>> +
>> +static unsigned char
>> +ipmb_checksum(const unsigned char *data, int size, unsigned char start)
>> +{
>> + unsigned char csum = start;
>> +
>> + for (; size > 0; size--, data++) {
>> + csum += *data;
>> + }
>> + return csum;
>> +}
>> +
>> +static void continue_send(IPMIExternBmc *es)
>> +{
>> + if (es->outlen == 0) {
>> + goto check_reset;
>> + }
>> + send:
>> + es->outpos += qemu_chr_fe_write(es->parent.chr, es->outbuf + es->outpos,
>> + es->outlen - es->outpos);
>> + if (es->outpos < es->outlen) {
>> + /* Not fully transmitted, try again in a 10ms */
>> + qemu_mod_timer(es->extern_timer,
>> + qemu_get_clock_ns(vm_clock) + 10000000);
>> + } else {
>> + /* Sent */
>> + es->outlen = 0;
>> + es->outpos = 0;
>> + if (!es->sending_cmd) {
>> + es->waiting_rsp = 1;
>> + } else {
>> + es->sending_cmd = 0;
>> + }
>> + check_reset:
>> + if (es->connected && es->send_reset) {
>> + /* Send the reset */
>> + es->outbuf[0] = VM_CMD_RESET;
>> + es->outbuf[1] = VM_CMD_CHAR;
>> + es->outlen = 2;
>> + es->outpos = 0;
>> + es->send_reset = 0;
>> + es->sending_cmd = 1;
>> + goto send;
>> + }
>> +
>> + if (es->waiting_rsp) {
>> + /* Make sure we get a response within 4 seconds. */
>> + qemu_mod_timer(es->extern_timer,
>> + qemu_get_clock_ns(vm_clock) + 4000000000ULL);
>> + }
>> + }
>> + return;
>> +}
>> +
>> +static void extern_timeout(void *opaque)
>> +{
>> + IPMIExternBmc *es = opaque;
>> + IPMIInterface *s = es->parent.intf;
>> +
>> + ipmi_lock(s);
>> + if (es->connected) {
>> + if (es->waiting_rsp && (es->outlen == 0)) {
>> + IPMIInterfaceClass *k = IPMI_INTERFACE_GET_CLASS(s);
>> + /* The message response timed out, return an error. */
>> + es->waiting_rsp = 0;
>> + es->inbuf[1] = es->outbuf[1] | 0x04;
>> + es->inbuf[2] = es->outbuf[2];
>> + es->inbuf[3] = IPMI_CC_TIMEOUT;
>> + k->handle_rsp(s, es->outbuf[0], es->inbuf + 1, 3);
>> + } else {
>> + continue_send(es);
>> + }
>> + }
>> + ipmi_unlock(s);
>> +}
>> +
>> +static void addchar(IPMIExternBmc *es, unsigned char ch)
>> +{
>> + switch (ch) {
>> + case VM_MSG_CHAR:
>> + case VM_CMD_CHAR:
>> + case VM_ESCAPE_CHAR:
>> + es->outbuf[es->outlen] = VM_ESCAPE_CHAR;
>> + es->outlen++;
>> + ch |= 0x10;
>> + /* No break */
>> +
>> + default:
>> + es->outbuf[es->outlen] = ch;
>> + es->outlen++;
>> + }
>> +}
>> +
>> +static void ipmi_extern_handle_command(IPMIBmc *b,
>> + uint8_t *cmd, unsigned int cmd_len,
>> + unsigned int max_cmd_len,
>> + uint8_t msg_id)
>> +{
>> + IPMIExternBmc *es = IPMI_BMC_EXTERN(b);
>> + IPMIInterface *s = es->parent.intf;
>> + uint8_t err = 0, csum;
>> + unsigned int i;
>> +
>> + ipmi_lock(s);
>> + if (es->outlen) {
>> + /* We already have a command queued. Shouldn't ever happen. */
>> + fprintf(stderr, "IPMI KCS: Got command when not finished with the"
>> + " previous commmand\n");
>> + abort();
>> + }
>> +
>> + /* If it's too short or it was truncated, return an error. */
>> + if (cmd_len < 2) {
>> + err = IPMI_CC_REQUEST_DATA_LENGTH_INVALID;
>> + } else if ((cmd_len > max_cmd_len) || (cmd_len > MAX_IPMI_MSG_SIZE)) {
>> + err = IPMI_CC_REQUEST_DATA_TRUNCATED;
>> + } else if (!es->connected) {
>> + err = IPMI_CC_BMC_INIT_IN_PROGRESS;
>> + }
>> + if (err) {
>> + IPMIInterfaceClass *k = IPMI_INTERFACE_GET_CLASS(s);
>> + unsigned char rsp[3];
>> + rsp[0] = cmd[0] | 0x04;
>> + rsp[1] = cmd[1];
>> + rsp[2] = err;
>> + es->waiting_rsp = 0;
>> + k->handle_rsp(s, msg_id, rsp, 3);
>> + goto out;
>> + }
>> +
>> + addchar(es, msg_id);
>> + for (i = 0; i < cmd_len; i++) {
>> + addchar(es, cmd[i]);
>> + }
>> + csum = ipmb_checksum(&msg_id, 1, 0);
>> + addchar(es, -ipmb_checksum(cmd, cmd_len, csum));
>> +
>> + es->outbuf[es->outlen] = VM_MSG_CHAR;
>> + es->outlen++;
>> +
>> + /* Start the transmit */
>> + continue_send(es);
>> +
>> + out:
>> + ipmi_unlock(s);
>> + return;
>> +}
>> +
>> +static void handle_hw_op(IPMIExternBmc *es, unsigned char hw_op)
>> +{
>> + IPMIInterface *s = es->parent.intf;
>> + IPMIInterfaceClass *k = IPMI_INTERFACE_GET_CLASS(s);
>> +
>> + switch (hw_op) {
>> + case VM_CMD_VERSION:
>> + /* We only support one version at this time. */
>> + break;
>> +
>> + case VM_CMD_NOATTN:
>> + k->set_atn(s, 0, 0);
>> + break;
>> +
>> + case VM_CMD_ATTN:
>> + k->set_atn(s, 1, 0);
>> + break;
>> +
>> + case VM_CMD_ATTN_IRQ:
>> + k->set_atn(s, 1, 1);
>> + break;
>> +
>> + case VM_CMD_POWEROFF:
>> + k->do_hw_op(s, IPMI_POWEROFF_CHASSIS, 0);
>> + break;
>> +
>> + case VM_CMD_RESET:
>> + k->do_hw_op(s, IPMI_RESET_CHASSIS, 0);
>> + break;
>> +
>> + case VM_CMD_ENABLE_IRQ:
>> + k->set_irq_enable(s, 1);
>> + break;
>> +
>> + case VM_CMD_DISABLE_IRQ:
>> + k->set_irq_enable(s, 0);
>> + break;
>> +
>> + case VM_CMD_SEND_NMI:
>> + k->do_hw_op(s, IPMI_SEND_NMI, 0);
>> + break;
>> + }
>> +}
>> +
>> +static void handle_msg(IPMIExternBmc *es)
>> +{
>> + IPMIInterfaceClass *k = IPMI_INTERFACE_GET_CLASS(es->parent.intf);
>> +
>> + if (es->in_escape) {
>> + ipmi_debug("msg escape not ended\n");
>> + return;
>> + }
>> + if (es->inpos < 5) {
>> + ipmi_debug("msg too short\n");
>> + return;
>> + }
>> + if (es->in_too_many) {
>> + es->inbuf[3] = IPMI_CC_REQUEST_DATA_TRUNCATED;
>> + es->inpos = 4;
>> + } else if (ipmb_checksum(es->inbuf, es->inpos, 0) != 0) {
>> + ipmi_debug("msg checksum failure\n");
>> + return;
>> + } else {
>> + es->inpos--; /* Remove checkum */
>> + }
>> +
>> + qemu_del_timer(es->extern_timer);
>> + es->waiting_rsp = 0;
>> + k->handle_rsp(es->parent.intf, es->inbuf[0], es->inbuf + 1, es->inpos - 1);
>> +}
>> +
>> +static int can_receive(void *opaque)
>> +{
>> + return 1;
>> +}
>> +
>> +static void receive(void *opaque, const uint8_t *buf, int size)
>> +{
>> + IPMIExternBmc *es = opaque;
>> + IPMIInterface *s = es->parent.intf;
>> + int i;
>> + unsigned char hw_op;
>> +
>> + ipmi_lock(s);
>> + for (i = 0; i < size; i++) {
>> + unsigned char ch = buf[i];
>> +
>> + switch (ch) {
>> + case VM_MSG_CHAR:
>> + handle_msg(es);
>> + es->in_too_many = 0;
>> + es->inpos = 0;
>> + break;
>> +
>> + case VM_CMD_CHAR:
>> + if (es->in_too_many) {
>> + ipmi_debug("cmd in too many\n");
>> + es->in_too_many = 0;
>> + es->inpos = 0;
>> + break;
>> + }
>> + if (es->in_escape) {
>> + ipmi_debug("cmd in escape\n");
>> + es->in_too_many = 0;
>> + es->inpos = 0;
>> + es->in_escape = 0;
>> + break;
>> + }
>> + es->in_too_many = 0;
>> + if (es->inpos < 1) {
>> + break;
>> + }
>> + hw_op = es->inbuf[0];
>> + es->inpos = 0;
>> + goto out_hw_op;
>> + break;
>> +
>> + case VM_ESCAPE_CHAR:
>> + es->in_escape = 1;
>> + break;
>> +
>> + default:
>> + if (es->in_escape) {
>> + ch &= ~0x10;
>> + es->in_escape = 0;
>> + }
>> + if (es->in_too_many) {
>> + break;
>> + }
>> + if (es->inpos >= sizeof(es->inbuf)) {
>> + es->in_too_many = 1;
>> + break;
>> + }
>> + es->inbuf[es->inpos] = ch;
>> + es->inpos++;
>> + break;
>> + }
>> + }
>> + ipmi_unlock(s);
>> + return;
>> +
>> + out_hw_op:
>> + ipmi_unlock(s);
>> + /*
>> + * We don't want to handle hardware operations while holding the
>> + * lock, that may call back into this code to report a reset.
>> + */
>> + handle_hw_op(es, hw_op);
>> +}
>> +
>> +static void chr_event(void *opaque, int event)
>> +{
>> + IPMIExternBmc *es = opaque;
>> + IPMIInterface *s = es->parent.intf;
>> + IPMIInterfaceClass *k = IPMI_INTERFACE_GET_CLASS(s);
>> + unsigned char v;
>> +
>> + ipmi_lock(s);
>> + switch (event) {
>> + case CHR_EVENT_OPENED:
>> + es->connected = 1;
>> + es->outpos = 0;
>> + es->outlen = 0;
>> + addchar(es, VM_CMD_VERSION);
>> + addchar(es, VM_PROTOCOL_VERSION);
>> + es->outbuf[es->outlen] = VM_CMD_CHAR;
>> + es->outlen++;
>> + addchar(es, VM_CMD_CAPABILITIES);
>> + v = VM_CAPABILITIES_IRQ | VM_CAPABILITIES_ATTN;
>> + if (k->do_hw_op(es->parent.intf, IPMI_POWEROFF_CHASSIS, 1) == 0) {
>> + v |= VM_CAPABILITIES_POWER;
>> + }
>> + if (k->do_hw_op(es->parent.intf, IPMI_RESET_CHASSIS, 1) == 0) {
>> + v |= VM_CAPABILITIES_RESET;
>> + }
>> + if (k->do_hw_op(es->parent.intf, IPMI_SEND_NMI, 1) == 0) {
>> + v |= VM_CAPABILITIES_NMI;
>> + }
>> + addchar(es, v);
>> + es->outbuf[es->outlen] = VM_CMD_CHAR;
>> + es->outlen++;
>> + es->sending_cmd = 0;
>> + continue_send(es);
>> + break;
>> +
>> + case CHR_EVENT_CLOSED:
>> + if (!es->connected) {
>> + return;
>> + }
>> + es->connected = 0;
>> + if (es->waiting_rsp) {
>> + es->waiting_rsp = 0;
>> + es->inbuf[1] = es->outbuf[1] | 0x04;
>> + es->inbuf[2] = es->outbuf[2];
>> + es->inbuf[3] = IPMI_CC_BMC_INIT_IN_PROGRESS;
>> + k->handle_rsp(s, es->outbuf[0], es->inbuf + 1, 3);
>> + }
>> + break;
>> + }
>> + ipmi_unlock(s);
>> +}
>> +
>> +static void ipmi_extern_handle_reset(IPMIBmc *b)
>> +{
>> + IPMIExternBmc *es = IPMI_BMC_EXTERN(b);
>> + IPMIInterface *s = es->parent.intf;
>> +
>> + ipmi_lock(s);
>> + es->send_reset = 1;
>> + continue_send(es);
>> + ipmi_unlock(s);
>> +}
>> +
>> +static int ipmi_extern_init(IPMIBmc *b)
>> +{
>> + IPMIExternBmc *es = IPMI_BMC_EXTERN(b);
>> +
>> + es->extern_timer = qemu_new_timer_ns(vm_clock, extern_timeout, es);
>> + qemu_chr_add_handlers(es->parent.chr, can_receive, receive, chr_event, es);
>> + return 0;
>> +}
>> +
>> +static void ipmi_extern_class_init(ObjectClass *klass, void *data)
>> +{
>> + IPMIBmcClass *bk = IPMI_BMC_CLASS(klass);
>> +
>> + bk->init = ipmi_extern_init;
>> + bk->handle_command = ipmi_extern_handle_command;
>> + bk->handle_reset = ipmi_extern_handle_reset;
>> +}
>> +
>> +static const TypeInfo ipmi_extern_type = {
>> + .name = TYPE_IPMI_BMC_EXTERN,
>> + .parent = TYPE_IPMI_BMC,
>> + .instance_size = sizeof(IPMIExternBmc),
>> + .class_init = ipmi_extern_class_init,
>> +};
>> +
>> +static void ipmi_extern_register_types(void)
>> +{
>> + type_register_static(&ipmi_extern_type);
>> +}
>> +
>> +type_init(ipmi_extern_register_types)
>
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Qemu-devel] [PATCH 14/16] IPMI: Add tests
2012-09-18 20:00 [Qemu-devel] [PATCH 00/16 v4] Add an IPMI device to qemu minyard
` (12 preceding siblings ...)
2012-09-18 20:00 ` [Qemu-devel] [PATCH 13/16] IPMI: Add an external connection simulation interface minyard
@ 2012-09-18 20:00 ` minyard
2012-09-18 20:00 ` [Qemu-devel] [PATCH 15/16] IPMI: Add documentation minyard
` (2 subsequent siblings)
16 siblings, 0 replies; 20+ messages in thread
From: minyard @ 2012-09-18 20:00 UTC (permalink / raw)
To: qemu-devel; +Cc: Corey Minyard
From: Corey Minyard <cminyard@mvista.com>
Test the KCS interface with a local BMC and a BT interface with an
external BMC.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
---
tests/Makefile | 4 +
tests/ipmi-test-bt.c | 440 +++++++++++++++++++++++++++++++++++++++++++++++++
tests/ipmi-test-kcs.c | 295 +++++++++++++++++++++++++++++++++
3 files changed, 739 insertions(+), 0 deletions(-)
create mode 100644 tests/ipmi-test-bt.c
create mode 100644 tests/ipmi-test-kcs.c
diff --git a/tests/Makefile b/tests/Makefile
index 26a67ce..e1a1959 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -23,6 +23,8 @@ check-block-$(CONFIG_POSIX) += tests/qemu-iotests-quick.sh
check-qtest-i386-y = tests/fdc-test$(EXESUF)
check-qtest-i386-y += tests/hd-geo-test$(EXESUF)
check-qtest-i386-y += tests/rtc-test$(EXESUF)
+check-qtest-i386-y += tests/ipmi-test-kcs$(EXESUF)
+check-qtest-i386-y += tests/ipmi-test-bt$(EXESUF)
check-qtest-x86_64-y = $(check-qtest-i386-y)
check-qtest-sparc-y = tests/m48t59-test$(EXESUF)
check-qtest-sparc64-y = tests/m48t59-test$(EXESUF)
@@ -71,6 +73,8 @@ tests/test-qmp-commands$(EXESUF): tests/test-qmp-commands.o tests/test-qmp-marsh
tests/test-visitor-serialization$(EXESUF): tests/test-visitor-serialization.o $(test-qapi-obj-y)
tests/rtc-test$(EXESUF): tests/rtc-test.o $(trace-obj-y)
+tests/ipmi-test-kcs$(EXESUF): tests/ipmi-test-kcs.o $(trace-obj-y)
+tests/ipmi-test-bt$(EXESUF): tests/ipmi-test-bt.o $(trace-obj-y)
tests/m48t59-test$(EXESUF): tests/m48t59-test.o $(trace-obj-y)
tests/fdc-test$(EXESUF): tests/fdc-test.o tests/libqtest.o $(trace-obj-y)
tests/hd-geo-test$(EXESUF): tests/hd-geo-test.o tests/libqtest.o $(trace-obj-y)
diff --git a/tests/ipmi-test-bt.c b/tests/ipmi-test-bt.c
new file mode 100644
index 0000000..c1da325
--- /dev/null
+++ b/tests/ipmi-test-bt.c
@@ -0,0 +1,440 @@
+/*
+ * IPMI BT test cases, using the external interface for checking
+ *
+ * Copyright (c) 2012 Corey Minyard <cminyard@mvista.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdio.h>
+
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <netinet/tcp.h>
+
+#include <glib.h>
+
+#include "libqtest.h"
+#include "qemu-common.h"
+
+#define IPMI_IRQ 5
+
+#define IPMI_BT_BASE 0xe4
+
+#define IPMI_BT_CTLREG_CLR_WR_PTR 0
+#define IPMI_BT_CTLREG_CLR_RD_PTR 1
+#define IPMI_BT_CTLREG_H2B_ATN 2
+#define IPMI_BT_CTLREG_B2H_ATN 3
+#define IPMI_BT_CTLREG_SMS_ATN 4
+#define IPMI_BT_CTLREG_H_BUSY 6
+#define IPMI_BT_CTLREG_B_BUSY 7
+
+#define IPMI_BT_CTLREG_GET(b) ((bt_get_ctrlreg() >> (b)) & 1)
+#define IPMI_BT_CTLREG_GET_H2B_ATN() IPMI_BT_CTLREG_GET(IPMI_BT_CTLREG_H2B_ATN)
+#define IPMI_BT_CTLREG_GET_B2H_ATN() IPMI_BT_CTLREG_GET(IPMI_BT_CTLREG_B2H_ATN)
+#define IPMI_BT_CTLREG_GET_SMS_ATN() IPMI_BT_CTLREG_GET(IPMI_BT_CTLREG_SMS_ATN)
+#define IPMI_BT_CTLREG_GET_H_BUSY() IPMI_BT_CTLREG_GET(IPMI_BT_CTLREG_H_BUSY)
+#define IPMI_BT_CTLREG_GET_B_BUSY() IPMI_BT_CTLREG_GET(IPMI_BT_CTLREG_B_BUSY)
+
+#define IPMI_BT_CTLREG_SET(b) bt_write_ctrlreg(1 << (b))
+#define IPMI_BT_CTLREG_SET_CLR_WR_PTR() IPMI_BT_CTLREG_SET( \
+ IPMI_BT_CTLREG_CLR_WR_PTR)
+#define IPMI_BT_CTLREG_SET_CLR_RD_PTR() IPMI_BT_CTLREG_SET( \
+ IPMI_BT_CTLREG_CLR_RD_PTR)
+#define IPMI_BT_CTLREG_SET_H2B_ATN() IPMI_BT_CTLREG_SET(IPMI_BT_CTLREG_H2B_ATN)
+#define IPMI_BT_CTLREG_SET_B2H_ATN() IPMI_BT_CTLREG_SET(IPMI_BT_CTLREG_B2H_ATN)
+#define IPMI_BT_CTLREG_SET_SMS_ATN() IPMI_BT_CTLREG_SET(IPMI_BT_CTLREG_SMS_ATN)
+#define IPMI_BT_CTLREG_SET_H_BUSY() IPMI_BT_CTLREG_SET(IPMI_BT_CTLREG_H_BUSY)
+
+static int bt_ints_enabled;
+
+static uint8_t bt_get_ctrlreg(void)
+{
+ return inb(IPMI_BT_BASE);
+}
+
+static void bt_write_ctrlreg(uint8_t val)
+{
+ outb(IPMI_BT_BASE, val);
+}
+
+static uint8_t bt_get_buf(void)
+{
+ return inb(IPMI_BT_BASE + 1);
+}
+
+static void bt_write_buf(uint8_t val)
+{
+ outb(IPMI_BT_BASE + 1, val);
+}
+
+static uint8_t bt_get_irqreg(void)
+{
+ return inb(IPMI_BT_BASE + 2);
+}
+
+static void bt_write_irqreg(uint8_t val)
+{
+ outb(IPMI_BT_BASE + 2, val);
+}
+
+static void bt_wait_b_busy(void)
+{
+ unsigned int count = 1000;
+ while (IPMI_BT_CTLREG_GET_B_BUSY() != 0) {
+ g_assert(--count != 0);
+ }
+}
+
+static void bt_wait_b2h_atn(void)
+{
+ unsigned int count = 1000;
+ while (IPMI_BT_CTLREG_GET_B2H_ATN() == 0) {
+ g_assert(--count != 0);
+ }
+}
+
+
+static int emu_lfd;
+static int emu_fd;
+static in_port_t emu_port;
+static uint8_t inbuf[100];
+static unsigned int inbuf_len;
+static unsigned int inbuf_pos;
+static int last_was_aa;
+
+static void read_emu_data(void)
+{
+ fd_set readfds;
+ int rv;
+ struct timeval tv;
+
+ FD_ZERO(&readfds);
+ FD_SET(emu_fd, &readfds);
+ tv.tv_sec = 10;
+ tv.tv_usec = 0;
+ rv = select(emu_fd + 1, &readfds, NULL, NULL, &tv);
+ if (rv == -1) {
+ perror("select");
+ }
+ g_assert(rv == 1);
+ rv = read(emu_fd, inbuf, sizeof(inbuf));
+ if (rv == -1) {
+ perror("read");
+ }
+ g_assert(rv > 0);
+ inbuf_len = rv;
+ inbuf_pos = 0;
+}
+
+static void write_emu_msg(uint8_t *msg, unsigned int len)
+{
+ int rv;
+
+#ifdef DEBUG_TEST
+ {
+ unsigned int i;
+ printf("sending:");
+ for (i = 0; i < len; i++) {
+ printf(" %2.2x", msg[i]);
+ }
+ printf("\n");
+ }
+#endif
+ rv = write(emu_fd, msg, len);
+ g_assert(rv == len);
+}
+
+static void get_emu_msg(uint8_t *msg, unsigned int *len)
+{
+ unsigned int outpos = 0;
+
+ for (;;) {
+ while (inbuf_pos < inbuf_len) {
+ uint8_t ch = inbuf[inbuf_pos++];
+
+ g_assert(outpos < *len);
+ if (last_was_aa) {
+ assert(ch & 0x10);
+ msg[outpos++] = ch & ~0x10;
+ last_was_aa = 0;
+ } else if (ch == 0xaa) {
+ last_was_aa = 1;
+ } else {
+ msg[outpos++] = ch;
+ if ((ch == 0xa0) || (ch == 0xa1)) {
+ /* Message complete */
+ *len = outpos;
+ goto done;
+ }
+ }
+ }
+ read_emu_data();
+ }
+ done:
+#ifdef DEBUG_TEST
+ {
+ unsigned int i;
+ printf("Msg:");
+ for (i = 0; i < outpos; i++) {
+ printf(" %2.2x", msg[i]);
+ }
+ printf("\n");
+ }
+#endif
+ return;
+}
+
+static uint8_t
+ipmb_checksum(const unsigned char *data, int size, unsigned char start)
+{
+ unsigned char csum = start;
+
+ for (; size > 0; size--, data++) {
+ csum += *data;
+ }
+ return csum;
+}
+
+static uint8_t get_dev_id_cmd[] = { 0x18, 0x01 };
+static uint8_t get_dev_id_rsp[] = { 0x1c, 0x01, 0x00, 0x20, 0x00, 0x00, 0x00,
+ 0x02, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 };
+
+static uint8_t set_bmc_globals_cmd[] = { 0x18, 0x2e, 0x0f };
+static uint8_t set_bmc_globals_rsp[] = { 0x1c, 0x2e, 0x00 };
+static uint8_t enable_irq_cmd[] = { 0x05, 0xa1 };
+
+static void emu_msg_handler(void)
+{
+ uint8_t msg[100];
+ unsigned int msg_len = sizeof(msg);
+
+ get_emu_msg(msg, &msg_len);
+ g_assert(msg_len >= 5);
+ g_assert(msg[msg_len - 1] == 0xa0);
+ msg_len--;
+ g_assert(ipmb_checksum(msg, msg_len, 0) == 0);
+ msg_len--;
+ if ((msg[1] == get_dev_id_cmd[0]) && (msg[2] == get_dev_id_cmd[1])) {
+ memcpy(msg + 1, get_dev_id_rsp, sizeof(get_dev_id_rsp));
+ msg_len = sizeof(get_dev_id_rsp) + 1;
+ msg[msg_len] = -ipmb_checksum(msg, msg_len, 0);
+ msg_len++;
+ msg[msg_len++] = 0xa0;
+ write_emu_msg(msg, msg_len);
+ } else if ((msg[1] == set_bmc_globals_cmd[0]) &&
+ (msg[2] == set_bmc_globals_cmd[1])) {
+ memcpy(msg + 1, set_bmc_globals_rsp, sizeof(set_bmc_globals_rsp));
+ msg_len = sizeof(set_bmc_globals_rsp) + 1;
+ msg[msg_len] = -ipmb_checksum(msg, msg_len, 0);
+ msg_len++;
+ msg[msg_len++] = 0xa0;
+ write_emu_msg(msg, msg_len);
+ write_emu_msg(enable_irq_cmd, sizeof(enable_irq_cmd));
+ } else {
+ g_assert(0);
+ }
+}
+
+static void bt_cmd(uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len)
+{
+ unsigned int i, len, j = 0;
+ uint8_t seq = 5;
+
+ /* Should be idle */
+ g_assert(bt_get_ctrlreg() == 0);
+
+ bt_wait_b_busy();
+ IPMI_BT_CTLREG_SET_CLR_WR_PTR();
+ bt_write_buf(cmd_len + 1);
+ bt_write_buf(cmd[0]);
+ bt_write_buf(seq);
+ for (i = 1; i < cmd_len; i++) {
+ bt_write_buf(cmd[i]);
+ }
+ IPMI_BT_CTLREG_SET_H2B_ATN();
+
+ emu_msg_handler(); /* We should get a message on the socket here. */
+
+ bt_wait_b2h_atn();
+ if (bt_ints_enabled) {
+ g_assert((bt_get_irqreg() & 0x02) == 0x02);
+ g_assert(get_irq(IPMI_IRQ));
+ bt_write_irqreg(0x03);
+ } else {
+ g_assert(!get_irq(IPMI_IRQ));
+ }
+ IPMI_BT_CTLREG_SET_H_BUSY();
+ IPMI_BT_CTLREG_SET_B2H_ATN();
+ IPMI_BT_CTLREG_SET_CLR_RD_PTR();
+ len = bt_get_buf();
+ g_assert(len >= 4);
+ rsp[0] = bt_get_buf();
+ assert(bt_get_buf() == seq);
+ len--;
+ for (j = 1; j < len; j++) {
+ rsp[j] = bt_get_buf();
+ }
+ IPMI_BT_CTLREG_SET_H_BUSY();
+ *rsp_len = j;
+}
+
+
+/*
+ * We should get a connect request and a short message with capabilities.
+ */
+static void test_connect(void)
+{
+ fd_set readfds;
+ int rv;
+ int val;
+ struct timeval tv;
+ uint8_t msg[100];
+ unsigned int msglen;
+ static uint8_t exp1[] = { 0xff, 0x01, 0xa1 }; /* A protocol version */
+ static uint8_t exp2[] = { 0x08, 0x1f, 0xa1 }; /* A capabilities cmd */
+ static uint8_t exp3[] = { 0x04, 0xa1 }; /* A reset is reported */
+
+ FD_ZERO(&readfds);
+ FD_SET(emu_lfd, &readfds);
+ tv.tv_sec = 10;
+ tv.tv_usec = 0;
+ rv = select(emu_lfd + 1, &readfds, NULL, NULL, &tv);
+ g_assert(rv == 1);
+ emu_fd = accept(emu_lfd, NULL, 0);
+ if (emu_fd < 0) {
+ perror("accept");
+ }
+ g_assert(emu_fd >= 0);
+
+ val = 1;
+ rv = setsockopt(emu_fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof(val));
+ g_assert(rv != -1);
+
+ /* Report our version */
+ write_emu_msg(exp1, sizeof(exp1));
+
+ /* Validate that we get the info we expect. */
+ msglen = sizeof(msg);
+ get_emu_msg(msg, &msglen);
+ g_assert(msglen == sizeof(exp1));
+ g_assert(memcmp(msg, exp1, msglen) == 0);
+ msglen = sizeof(msg);
+ get_emu_msg(msg, &msglen);
+ g_assert(msglen == sizeof(exp2));
+ g_assert(memcmp(msg, exp2, msglen) == 0);
+ msglen = sizeof(msg);
+ get_emu_msg(msg, &msglen);
+ g_assert(msglen == sizeof(exp3));
+ g_assert(memcmp(msg, exp3, msglen) == 0);
+}
+
+/*
+ * Send a get_device_id to do a basic test.
+ */
+static void test_bt_base(void)
+{
+ uint8_t rsp[20];
+ unsigned int rsplen = sizeof(rsp);
+
+ bt_cmd(get_dev_id_cmd, sizeof(get_dev_id_cmd), rsp, &rsplen);
+ g_assert(rsplen == sizeof(get_dev_id_rsp));
+ g_assert(memcmp(get_dev_id_rsp, rsp, rsplen) == 0);
+}
+
+/*
+ * Enable IRQs for the interface.
+ */
+static void test_enable_irq(void)
+{
+ uint8_t rsp[20];
+ unsigned int rsplen = sizeof(rsp);
+
+ bt_cmd(set_bmc_globals_cmd, sizeof(set_bmc_globals_cmd), rsp, &rsplen);
+ g_assert(rsplen == sizeof(set_bmc_globals_rsp));
+ g_assert(memcmp(set_bmc_globals_rsp, rsp, rsplen) == 0);
+ bt_write_irqreg(0x01);
+ bt_ints_enabled = 1;
+}
+
+/*
+ * Create a local TCP socket with any port, then save off the port we got.
+ */
+static void open_socket(void)
+{
+ struct sockaddr_in myaddr;
+ socklen_t addrlen;
+
+ myaddr.sin_family = AF_INET;
+ myaddr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+ myaddr.sin_port = 0;
+ emu_lfd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+ if (emu_lfd == -1) {
+ perror("socket");
+ exit(1);
+ }
+ if (bind(emu_lfd, (struct sockaddr *) &myaddr, sizeof(myaddr)) == -1) {
+ perror("bind");
+ exit(1);
+ }
+ addrlen = sizeof(myaddr);
+ if (getsockname(emu_lfd, (struct sockaddr *) &myaddr , &addrlen) == -1) {
+ perror("getsockname");
+ exit(1);
+ }
+ emu_port = ntohs(myaddr.sin_port);
+ assert(listen(emu_lfd, 1) != -1);
+}
+
+int main(int argc, char **argv)
+{
+ const char *arch = qtest_get_arch();
+ char *cmdline;
+ int ret;
+
+ /* Check architecture */
+ if (strcmp(arch, "i386") && strcmp(arch, "x86_64")) {
+ g_test_message("Skipping test for non-x86\n");
+ return 0;
+ }
+
+ open_socket();
+
+ /* Run the tests */
+ g_test_init(&argc, &argv, NULL);
+
+ cmdline = g_strdup_printf("-vnc none"
+ " -chardev socket,id=ipmi0,host=localhost,port=%d,reconnect=10"
+ " -device isa-ipmi,interface=bt,chardev=ipmi0", emu_port);
+ qtest_start(cmdline);
+ qtest_irq_intercept_in(global_qtest, "ioapic");
+ qtest_add_func("/ipmi/extern/connect", test_connect);
+ qtest_add_func("/ipmi/extern/bt_base", test_bt_base);
+ qtest_add_func("/ipmi/extern/bt_enable_irq", test_enable_irq);
+ qtest_add_func("/ipmi/extern/bt_base_irq", test_bt_base);
+ ret = g_test_run();
+ qtest_quit(global_qtest);
+
+ return ret;
+}
diff --git a/tests/ipmi-test-kcs.c b/tests/ipmi-test-kcs.c
new file mode 100644
index 0000000..66799dc
--- /dev/null
+++ b/tests/ipmi-test-kcs.c
@@ -0,0 +1,295 @@
+/*
+ * IPMI KCS test cases, using the local interface.
+ *
+ * Copyright (c) 2012 Corey Minyard <cminyard@mvista.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <stdint.h>
+#include <string.h>
+#include <stdio.h>
+
+#include <glib.h>
+
+#include "libqtest.h"
+#include "qemu-common.h"
+
+#define IPMI_IRQ 5
+
+#define IPMI_KCS_BASE 0xca2
+
+#define IPMI_KCS_STATUS_ABORT 0x60
+#define IPMI_KCS_CMD_WRITE_START 0x61
+#define IPMI_KCS_CMD_WRITE_END 0x62
+#define IPMI_KCS_CMD_READ 0x68
+
+#define IPMI_KCS_ABORTED_BY_CMD 0x01
+
+#define IPMI_KCS_CMDREG_GET_STATE() ((kcs_get_cmdreg() >> 6) & 3)
+#define IPMI_KCS_STATE_IDLE 0
+#define IPMI_KCS_STATE_READ 1
+#define IPMI_KCS_STATE_WRITE 2
+#define IPMI_KCS_STATE_ERROR 3
+#define IPMI_KCS_CMDREG_GET_CD() ((kcs_get_cmdreg() >> 3) & 1)
+#define IPMI_KCS_CMDREG_GET_ATN() ((kcs_get_cmdreg() >> 2) & 1)
+#define IPMI_KCS_CMDREG_GET_IBF() ((kcs_get_cmdreg() >> 1) & 1)
+#define IPMI_KCS_CMDREG_GET_OBF() ((kcs_get_cmdreg() >> 0) & 1)
+
+static int kcs_ints_enabled;
+
+static uint8_t kcs_get_cmdreg(void)
+{
+ return inb(IPMI_KCS_BASE + 1);
+}
+
+static void kcs_write_cmdreg(uint8_t val)
+{
+ outb(IPMI_KCS_BASE + 1, val);
+}
+
+static uint8_t kcs_get_datareg(void)
+{
+ return inb(IPMI_KCS_BASE);
+}
+
+static void kcs_write_datareg(uint8_t val)
+{
+ outb(IPMI_KCS_BASE, val);
+}
+
+static void kcs_wait_ibf(void)
+{
+ unsigned int count = 1000;
+ while (IPMI_KCS_CMDREG_GET_IBF() != 0) {
+ g_assert(--count != 0);
+ }
+}
+
+static void kcs_wait_obf(void)
+{
+ unsigned int count = 1000;
+ while (IPMI_KCS_CMDREG_GET_OBF() == 0) {
+ g_assert(--count != 0);
+ }
+}
+
+static void kcs_clear_obf(void)
+{
+ if (kcs_ints_enabled) {
+ g_assert(get_irq(IPMI_IRQ));
+ } else {
+ g_assert(!get_irq(IPMI_IRQ));
+ }
+ g_assert(IPMI_KCS_CMDREG_GET_OBF() == 1);
+ kcs_get_datareg();
+ g_assert(IPMI_KCS_CMDREG_GET_OBF() == 0);
+ g_assert(!get_irq(IPMI_IRQ));
+}
+
+static void kcs_check_state(uint8_t state)
+{
+ g_assert(IPMI_KCS_CMDREG_GET_STATE() == state);
+}
+
+static void kcs_cmd(uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len)
+{
+ unsigned int i, j = 0;
+
+ /* Should be idle */
+ g_assert(kcs_get_cmdreg() == 0);
+
+ kcs_write_cmdreg(IPMI_KCS_CMD_WRITE_START);
+ kcs_wait_ibf();
+ kcs_check_state(IPMI_KCS_STATE_WRITE);
+ kcs_clear_obf();
+ for (i = 0; i < cmd_len; i++) {
+ kcs_write_datareg(cmd[i]);
+ kcs_wait_ibf();
+ kcs_check_state(IPMI_KCS_STATE_WRITE);
+ kcs_clear_obf();
+ }
+ kcs_write_cmdreg(IPMI_KCS_CMD_WRITE_END);
+ kcs_wait_ibf();
+ kcs_check_state(IPMI_KCS_STATE_WRITE);
+ kcs_clear_obf();
+ kcs_write_datareg(0);
+ next_read_byte:
+ kcs_wait_ibf();
+ switch (IPMI_KCS_CMDREG_GET_STATE()) {
+ case IPMI_KCS_STATE_READ:
+ kcs_wait_obf();
+ g_assert(j < *rsp_len);
+ rsp[j++] = kcs_get_datareg();
+ kcs_write_datareg(IPMI_KCS_CMD_READ);
+ goto next_read_byte;
+ break;
+
+ case IPMI_KCS_STATE_IDLE:
+ kcs_wait_obf();
+ kcs_get_datareg();
+ break;
+
+ default:
+ g_assert(0);
+ }
+ *rsp_len = j;
+}
+
+static void kcs_abort(uint8_t *cmd, unsigned int cmd_len,
+ uint8_t *rsp, unsigned int *rsp_len)
+{
+ unsigned int i, j = 0;
+ unsigned int retries = 4;
+
+ /* Should be idle */
+ g_assert(kcs_get_cmdreg() == 0);
+
+ kcs_write_cmdreg(IPMI_KCS_CMD_WRITE_START);
+ kcs_wait_ibf();
+ kcs_check_state(IPMI_KCS_STATE_WRITE);
+ kcs_clear_obf();
+ for (i = 0; i < cmd_len; i++) {
+ kcs_write_datareg(cmd[i]);
+ kcs_wait_ibf();
+ kcs_check_state(IPMI_KCS_STATE_WRITE);
+ kcs_clear_obf();
+ }
+ kcs_write_cmdreg(IPMI_KCS_CMD_WRITE_END);
+ kcs_wait_ibf();
+ kcs_check_state(IPMI_KCS_STATE_WRITE);
+ kcs_clear_obf();
+ kcs_write_datareg(0);
+ kcs_wait_ibf();
+ switch (IPMI_KCS_CMDREG_GET_STATE()) {
+ case IPMI_KCS_STATE_READ:
+ kcs_wait_obf();
+ g_assert(j < *rsp_len);
+ rsp[j++] = kcs_get_datareg();
+ kcs_write_datareg(IPMI_KCS_CMD_READ);
+ break;
+
+ default:
+ g_assert(0);
+ }
+
+ /* Start the abort here */
+ retry_abort:
+ g_assert(retries > 0);
+
+ kcs_wait_ibf();
+ kcs_write_cmdreg(IPMI_KCS_STATUS_ABORT);
+ kcs_wait_ibf();
+ kcs_clear_obf();
+ kcs_write_datareg(0);
+ kcs_wait_ibf();
+ if (IPMI_KCS_CMDREG_GET_STATE() != IPMI_KCS_STATE_READ) {
+ retries--;
+ goto retry_abort;
+ }
+ kcs_wait_obf();
+ rsp[0] = kcs_get_datareg();
+ kcs_write_datareg(IPMI_KCS_CMD_READ);
+ kcs_wait_ibf();
+ if (IPMI_KCS_CMDREG_GET_STATE() != IPMI_KCS_STATE_IDLE) {
+ retries--;
+ goto retry_abort;
+ }
+ kcs_wait_obf();
+ kcs_clear_obf();
+
+ *rsp_len = j;
+}
+
+
+static uint8_t get_dev_id_cmd[] = { 0x18, 0x01 };
+static uint8_t get_dev_id_rsp[] = { 0x1c, 0x01, 0x00, 0x20, 0x00, 0x00, 0x00,
+ 0x02, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00 };
+
+/*
+ * Send a get_device_id to do a basic test.
+ */
+static void test_kcs_base(void)
+{
+ uint8_t rsp[20];
+ unsigned int rsplen = sizeof(rsp);
+
+ kcs_cmd(get_dev_id_cmd, sizeof(get_dev_id_cmd), rsp, &rsplen);
+ g_assert(rsplen == sizeof(get_dev_id_rsp));
+ g_assert(memcmp(get_dev_id_rsp, rsp, rsplen) == 0);
+}
+
+/*
+ * Abort a kcs operation while reading
+ */
+static void test_kcs_abort(void)
+{
+ uint8_t rsp[20];
+ unsigned int rsplen = sizeof(rsp);
+
+ kcs_abort(get_dev_id_cmd, sizeof(get_dev_id_cmd), rsp, &rsplen);
+ g_assert(rsp[0] == IPMI_KCS_ABORTED_BY_CMD);
+}
+
+static uint8_t set_bmc_globals_cmd[] = { 0x18, 0x2e, 0x0f };
+static uint8_t set_bmc_globals_rsp[] = { 0x1c, 0x2e, 0x00 };
+
+/*
+ * Enable interrupts
+ */
+static void test_enable_irq(void)
+{
+ uint8_t rsp[20];
+ unsigned int rsplen = sizeof(rsp);
+
+ kcs_cmd(set_bmc_globals_cmd, sizeof(set_bmc_globals_cmd), rsp, &rsplen);
+ g_assert(rsplen == sizeof(set_bmc_globals_rsp));
+ g_assert(memcmp(set_bmc_globals_rsp, rsp, rsplen) == 0);
+ kcs_ints_enabled = 1;
+}
+
+int main(int argc, char **argv)
+{
+ const char *arch = qtest_get_arch();
+ char *cmdline;
+ int ret;
+
+ /* Check architecture */
+ if (strcmp(arch, "i386") && strcmp(arch, "x86_64")) {
+ g_test_message("Skipping test for non-x86\n");
+ return 0;
+ }
+
+ /* Run the tests */
+ g_test_init(&argc, &argv, NULL);
+
+ cmdline = g_strdup_printf("-vnc none -device isa-ipmi");
+ qtest_start(cmdline);
+ qtest_irq_intercept_in(global_qtest, "ioapic");
+ qtest_add_func("/ipmi/local/kcs_base", test_kcs_base);
+ qtest_add_func("/ipmi/local/kcs_abort", test_kcs_abort);
+ qtest_add_func("/ipmi/local/kcs_enable_irq", test_enable_irq);
+ qtest_add_func("/ipmi/local/kcs_base_irq", test_kcs_base);
+ qtest_add_func("/ipmi/local/kcs_abort_irq", test_kcs_abort);
+ ret = g_test_run();
+ qtest_quit(global_qtest);
+
+ return ret;
+}
--
1.7.4.1
^ permalink raw reply related [flat|nested] 20+ messages in thread* [Qemu-devel] [PATCH 15/16] IPMI: Add documentation.
2012-09-18 20:00 [Qemu-devel] [PATCH 00/16 v4] Add an IPMI device to qemu minyard
` (13 preceding siblings ...)
2012-09-18 20:00 ` [Qemu-devel] [PATCH 14/16] IPMI: Add tests minyard
@ 2012-09-18 20:00 ` minyard
2012-09-18 20:00 ` [Qemu-devel] [PATCH 16/16] ipmi: Add migration capability to the IPMI device minyard
2012-10-04 21:29 ` [Qemu-devel] [PATCH 00/16 v4] Add an IPMI device to qemu Corey Minyard
16 siblings, 0 replies; 20+ messages in thread
From: minyard @ 2012-09-18 20:00 UTC (permalink / raw)
To: qemu-devel; +Cc: Corey Minyard
From: Corey Minyard <cminyard@mvista.com>
Add some basic documentation for the IPMI device.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
---
qemu-options.hx | 35 +++++++++++++++++++++++++++++++++++
1 files changed, 35 insertions(+), 0 deletions(-)
diff --git a/qemu-options.hx b/qemu-options.hx
index d60af6a..748758b 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -565,6 +565,41 @@ Add device @var{driver}. @var{prop}=@var{value} sets driver
properties. Valid properties depend on the driver. To get help on
possible drivers and properties, use @code{-device ?} and
@code{-device @var{driver},?}.
+
+Some drivers are:
+@item -device isa-ipmi[,interface=kcs|bt][,iobase=@var{val}][,irq=@var{val}][,slave_addr=@var{val}][,chardev=name]
+
+Add an IPMI device. This also adds a corresponding SMBIOS entry to the
+SMBIOS tables for x86. The following options are handled:
+@table @option
+@item interface=kcs|bt
+Define the interface type to use. Currently the IPMI-defined KCS and
+BT interfaces are handled. The default is KCS.
+@item iobase=@var{val}
+Define the I/O address of the interface. The default is 0xca0 for KCS
+and 0xe4 for BT.
+@item irq=@var{val}
+Define the interrupt to use. The default is 5. To disable interrupts,
+set this to 0.
+@item slave_addr=@var{val}
+The IPMI slave address to use for the BMC. The default is 0x20.
+@item chardev=name
+If a chardev is not specified, the IPMI driver uses a built-in baseboard
+management controller (BMC) simulator. It provides a basic BMC with a
+watchdog timer and associated sensor.
+
+If a chardev is specified, A connection is made to an external BMC
+simulator. If you do this, it is strongly recommended that you use
+the "reconnect=" chardev option to reconnect to the simulator if the
+connection is lost. Note that if this is not used carefully, it can
+be a security issue, as the interface has the ability to send resets,
+NMIs, and power off the VM. It's best if QEMU makes a connection to
+an external simulator running on a secure port on localhost, so
+neither the simulator nor QEMU is exposed to any outside network.
+
+See the "lanserv/README.vm" file in the OpenIPMI library for more
+details on the external interface.
+@end table
ETEXI
DEFHEADING()
--
1.7.4.1
^ permalink raw reply related [flat|nested] 20+ messages in thread* [Qemu-devel] [PATCH 16/16] ipmi: Add migration capability to the IPMI device.
2012-09-18 20:00 [Qemu-devel] [PATCH 00/16 v4] Add an IPMI device to qemu minyard
` (14 preceding siblings ...)
2012-09-18 20:00 ` [Qemu-devel] [PATCH 15/16] IPMI: Add documentation minyard
@ 2012-09-18 20:00 ` minyard
2012-10-04 21:29 ` [Qemu-devel] [PATCH 00/16 v4] Add an IPMI device to qemu Corey Minyard
16 siblings, 0 replies; 20+ messages in thread
From: minyard @ 2012-09-18 20:00 UTC (permalink / raw)
To: qemu-devel; +Cc: Corey Minyard
From: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com
---
hw/ipmi.c | 17 +++++++++++++++++
hw/ipmi.h | 2 ++
hw/ipmi_bt.c | 14 ++++++++++++++
hw/ipmi_extern.c | 42 ++++++++++++++++++++++++++++++++++++++----
hw/ipmi_kcs.c | 15 +++++++++++++++
hw/ipmi_sim.c | 31 +++++++++++++++++++++++++++++++
hw/isa_ipmi.c | 12 ++++++++++++
7 files changed, 129 insertions(+), 4 deletions(-)
diff --git a/hw/ipmi.c b/hw/ipmi.c
index 252eab0..56c0438 100644
--- a/hw/ipmi.c
+++ b/hw/ipmi.c
@@ -150,6 +150,23 @@ int ipmi_bmc_init(IPMIBmc *s)
return 0;
}
+const VMStateDescription vmstate_IPMIInterface = {
+ .name = TYPE_IPMI_INTERFACE,
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_BOOL(obf_irq_set, IPMIInterface),
+ VMSTATE_BOOL(atn_irq_set, IPMIInterface),
+ VMSTATE_BOOL(use_irq, IPMIInterface),
+ VMSTATE_BOOL(irqs_enabled, IPMIInterface),
+ VMSTATE_UINT32(outpos, IPMIInterface),
+ VMSTATE_UINT32(outlen, IPMIInterface),
+ VMSTATE_VBUFFER_UINT32(inmsg, IPMIInterface, 1, NULL, 0, inlen),
+ VMSTATE_BOOL(write_end, IPMIInterface),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
static TypeInfo ipmi_bmc_type_info = {
.name = TYPE_IPMI_BMC,
.parent = TYPE_OBJECT,
diff --git a/hw/ipmi.h b/hw/ipmi.h
index 13f0562..cbf2b18 100644
--- a/hw/ipmi.h
+++ b/hw/ipmi.h
@@ -187,6 +187,8 @@ typedef struct IPMIInterfaceClass {
unsigned char *rsp, unsigned int rsp_len);
} IPMIInterfaceClass;
+extern const VMStateDescription vmstate_IPMIInterface;
+
int ipmi_interface_init(IPMIInterface *s);
void ipmi_interface_reset(IPMIInterface *s);
diff --git a/hw/ipmi_bt.c b/hw/ipmi_bt.c
index d068db0..a9d87eb 100644
--- a/hw/ipmi_bt.c
+++ b/hw/ipmi_bt.c
@@ -325,6 +325,19 @@ static void ipmi_bt_set_atn(IPMIInterface *s, int val, int irq)
}
}
+static const VMStateDescription vmstate_ipmi_bt = {
+ .name = TYPE_IPMI_INTERFACE_BT,
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT8(control_reg, IPMIBtInterface),
+ VMSTATE_UINT8(mask_reg, IPMIBtInterface),
+ VMSTATE_UINT8(waiting_rsp, IPMIBtInterface),
+ VMSTATE_UINT8(waiting_seq, IPMIBtInterface),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
static int ipmi_bt_init(IPMIInterface *s)
{
IPMIBtInterface *bt = IPMI_INTERFACE_BT(s);
@@ -335,6 +348,7 @@ static int ipmi_bt_init(IPMIInterface *s)
s->io_length = 3;
memory_region_init_io(&s->io, &ipmi_bt_io_ops, bt, "ipmi-bt", 3);
+ vmstate_register(NULL, 0, &vmstate_ipmi_bt, bt);
return 0;
}
diff --git a/hw/ipmi_extern.c b/hw/ipmi_extern.c
index b31aea0..803331c 100644
--- a/hw/ipmi_extern.c
+++ b/hw/ipmi_extern.c
@@ -63,10 +63,10 @@ typedef struct IPMIExternBmc {
unsigned char inbuf[MAX_IPMI_MSG_SIZE + 2];
unsigned int inpos;
- int in_escape;
- int in_too_many;
- int waiting_rsp;
- int sending_cmd;
+ bool in_escape;
+ bool in_too_many;
+ bool waiting_rsp;
+ bool sending_cmd;
unsigned char outbuf[(MAX_IPMI_MSG_SIZE + 2) * 2 + 1];
unsigned int outpos;
@@ -442,12 +442,46 @@ static void ipmi_extern_handle_reset(IPMIBmc *b)
ipmi_unlock(s);
}
+static int ipmi_extern_post_migrate(void *opaque, int version_id)
+{
+ IPMIExternBmc *es = opaque;
+
+ /*
+ * We don't directly restore waiting_rsp, Instead, we return an
+ * error on the interface if a response was being waited for.
+ */
+ if (es->waiting_rsp) {
+ IPMIInterface *s = es->parent.intf;
+ IPMIInterfaceClass *k = IPMI_INTERFACE_GET_CLASS(s);
+
+ es->waiting_rsp = 0;
+ es->inbuf[1] = es->outbuf[1] | 0x04;
+ es->inbuf[2] = es->outbuf[2];
+ es->inbuf[3] = IPMI_CC_BMC_INIT_IN_PROGRESS;
+ k->handle_rsp(s, es->outbuf[0], es->inbuf + 1, 3);
+ }
+ return 0;
+}
+
+static const VMStateDescription vmstate_ipmi_extern = {
+ .name = TYPE_IPMI_BMC_EXTERN,
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .post_load = ipmi_extern_post_migrate,
+ .fields = (VMStateField[]) {
+ VMSTATE_BOOL(send_reset, IPMIExternBmc),
+ VMSTATE_BOOL(waiting_rsp, IPMIExternBmc),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
static int ipmi_extern_init(IPMIBmc *b)
{
IPMIExternBmc *es = IPMI_BMC_EXTERN(b);
es->extern_timer = qemu_new_timer_ns(vm_clock, extern_timeout, es);
qemu_chr_add_handlers(es->parent.chr, can_receive, receive, chr_event, es);
+ vmstate_register(NULL, 0, &vmstate_ipmi_extern, es);
return 0;
}
diff --git a/hw/ipmi_kcs.c b/hw/ipmi_kcs.c
index ca934f6..b61335f 100644
--- a/hw/ipmi_kcs.c
+++ b/hw/ipmi_kcs.c
@@ -302,6 +302,20 @@ static void ipmi_kcs_set_atn(IPMIInterface *s, int val, int irq)
}
}
+static const VMStateDescription vmstate_ipmi_kcs = {
+ .name = TYPE_IPMI_INTERFACE_KCS,
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT8(status_reg, IPMIKcsInterface),
+ VMSTATE_UINT8(data_out_reg, IPMIKcsInterface),
+ VMSTATE_INT16(data_in_reg, IPMIKcsInterface),
+ VMSTATE_INT16(cmd_reg, IPMIKcsInterface),
+ VMSTATE_UINT8(waiting_rsp, IPMIKcsInterface),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
static int ipmi_kcs_init(IPMIInterface *s)
{
IPMIKcsInterface *kcs = IPMI_INTERFACE_KCS(s);
@@ -312,6 +326,7 @@ static int ipmi_kcs_init(IPMIInterface *s)
s->io_length = 2;
memory_region_init_io(&s->io, &ipmi_kcs_io_ops, kcs, "ipmi-kcs", 2);
+ vmstate_register(NULL, 0, &vmstate_ipmi_kcs, kcs);
return 0;
}
diff --git a/hw/ipmi_sim.c b/hw/ipmi_sim.c
index d41ac80..362c96e 100644
--- a/hw/ipmi_sim.c
+++ b/hw/ipmi_sim.c
@@ -1481,6 +1481,34 @@ static const uint8_t init_sdrs[] = {
0xff, 0xff, 0x00, 0x00, 0x00
};
+static const VMStateDescription vmstate_ipmi_sim = {
+ .name = TYPE_IPMI_BMC_SIMULATOR,
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT8(bmc_global_enables, IPMISimBmc),
+ VMSTATE_UINT8(msg_flags, IPMISimBmc),
+ VMSTATE_BOOL(watchdog_initialized, IPMISimBmc),
+ VMSTATE_UINT8(watchdog_use, IPMISimBmc),
+ VMSTATE_UINT8(watchdog_action, IPMISimBmc),
+ VMSTATE_UINT8(watchdog_pretimeout, IPMISimBmc),
+ VMSTATE_BOOL(watchdog_expired, IPMISimBmc),
+ VMSTATE_UINT16(watchdog_timeout, IPMISimBmc),
+ VMSTATE_BOOL(watchdog_running, IPMISimBmc),
+ VMSTATE_BOOL(watchdog_preaction_ran, IPMISimBmc),
+ VMSTATE_INT64(watchdog_expiry, IPMISimBmc),
+ VMSTATE_UINT8_ARRAY(evtbuf, IPMISimBmc, 16),
+ VMSTATE_UINT8(sensors[IPMI_WATCHDOG_SENSOR].status, IPMISimBmc),
+ VMSTATE_UINT8(sensors[IPMI_WATCHDOG_SENSOR].reading, IPMISimBmc),
+ VMSTATE_UINT16(sensors[IPMI_WATCHDOG_SENSOR].states, IPMISimBmc),
+ VMSTATE_UINT16(sensors[IPMI_WATCHDOG_SENSOR].assert_states, IPMISimBmc),
+ VMSTATE_UINT16(sensors[IPMI_WATCHDOG_SENSOR].deassert_states,
+ IPMISimBmc),
+ VMSTATE_UINT16(sensors[IPMI_WATCHDOG_SENSOR].assert_enable, IPMISimBmc),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
static int ipmi_sim_init(IPMIBmc *b)
{
unsigned int i;
@@ -1525,6 +1553,9 @@ static int ipmi_sim_init(IPMIBmc *b)
register_cmds(ss);
ss->timer = qemu_new_timer_ns(vm_clock, ipmi_timeout, ss);
+
+ vmstate_register(NULL, 0, &vmstate_ipmi_sim, ss);
+
return 0;
}
diff --git a/hw/isa_ipmi.c b/hw/isa_ipmi.c
index f8afbb9..2e4cc27 100644
--- a/hw/isa_ipmi.c
+++ b/hw/isa_ipmi.c
@@ -126,12 +126,24 @@ static Property ipmi_isa_properties[] = {
DEFINE_PROP_END_OF_LIST(),
};
+static const VMStateDescription vmstate_isa_ipmi = {
+ .name = TYPE_ISA_IPMI,
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_STRUCT_POINTER(intf, ISAIPMIDevice, vmstate_IPMIInterface,
+ IPMIInterface *),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
static void ipmi_isa_class_initfn(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
ISADeviceClass *ic = ISA_DEVICE_CLASS(klass);
ic->init = ipmi_isa_initfn;
dc->reset = ipmi_isa_reset;
+ dc->vmsd = &vmstate_isa_ipmi;
dc->props = ipmi_isa_properties;
}
--
1.7.4.1
^ permalink raw reply related [flat|nested] 20+ messages in thread* Re: [Qemu-devel] [PATCH 00/16 v4] Add an IPMI device to qemu
2012-09-18 20:00 [Qemu-devel] [PATCH 00/16 v4] Add an IPMI device to qemu minyard
` (15 preceding siblings ...)
2012-09-18 20:00 ` [Qemu-devel] [PATCH 16/16] ipmi: Add migration capability to the IPMI device minyard
@ 2012-10-04 21:29 ` Corey Minyard
16 siblings, 0 replies; 20+ messages in thread
From: Corey Minyard @ 2012-10-04 21:29 UTC (permalink / raw)
To: qemu-devel
On 09/18/2012 03:00 PM, minyard@acm.org wrote:
> I haven't pushed on the SEABIOS changes for IPMI, and the changes for
> qemu for BIOS support are quite small, anyway. So I've separated out
> those changes; here's the driver without BIOS table support.
>
> -corey
>
>
I haven't seen any comments on this. I'd like to get this in sometime.
I'm not in a big hurry, but I don't want to be constantly porting it
forward.
-corey
^ permalink raw reply [flat|nested] 20+ messages in thread