* [Qemu-devel] [PATCH 0/2] linux-user: remove guest-base configure parameter
@ 2015-08-23 23:42 Laurent Vivier
2015-08-23 23:42 ` [Qemu-devel] [PATCH 1/2] linux-user: remove --enable-guest-base/--disable-guest-base Laurent Vivier
` (2 more replies)
0 siblings, 3 replies; 7+ messages in thread
From: Laurent Vivier @ 2015-08-23 23:42 UTC (permalink / raw)
To: Riku Voipio, Claudio Fontana, Richard Henderson,
Andrzej Zaborowski, Aurelien Jarno, Vassili Karpov (malc),
Alexander Graf, Blue Swirl
Cc: qemu-devel, Laurent Vivier
These two patches remove the parameters
--enable-guest-base/--disable-guest-base from the configure options.
So, in linux-user mode, guest base is always enabled, and can
be disabled by setting the guest base to 0.
I've checked some softmmu targets with BIOS/firmware, and booted a raspbian
distro in a container in linux-user mode, BUT I recommend each machine
maintainers should check their machines always work well.
Laurent Vivier (2):
linux-user: remove --enable-guest-base/--disable-guest-base
linux-user: remove useless macros GUEST_BASE and RESERVED_VA
bsd-user/elfload.c | 2 --
bsd-user/main.c | 12 ------------
bsd-user/qemu.h | 2 --
configure | 10 ----------
include/exec/cpu-all.h | 9 +--------
include/exec/cpu_ldst.h | 8 ++++----
linux-user/elfload.c | 2 --
linux-user/main.c | 12 ------------
linux-user/mmap.c | 24 ++++++++++--------------
tcg/aarch64/tcg-target.c | 18 +++++++-----------
tcg/arm/tcg-target.c | 8 ++++----
tcg/i386/tcg-target.c | 22 +++++++++++-----------
tcg/ia64/tcg-target.c | 25 ++++++++++---------------
tcg/mips/tcg-target.c | 16 ++++++++--------
tcg/ppc/tcg-target.c | 18 ++++++------------
tcg/s390/tcg-target.c | 15 +++++----------
tcg/sparc/tcg-target.c | 14 ++++++--------
translate-all.c | 2 +-
18 files changed, 73 insertions(+), 146 deletions(-)
--
2.4.3
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Qemu-devel] [PATCH 1/2] linux-user: remove --enable-guest-base/--disable-guest-base
2015-08-23 23:42 [Qemu-devel] [PATCH 0/2] linux-user: remove guest-base configure parameter Laurent Vivier
@ 2015-08-23 23:42 ` Laurent Vivier
2015-08-24 4:59 ` Alexander Graf
2015-08-23 23:42 ` [Qemu-devel] [PATCH 2/2] linux-user: remove useless macros GUEST_BASE and RESERVED_VA Laurent Vivier
2015-08-24 18:16 ` [Qemu-devel] [PATCH 0/2] linux-user: remove guest-base configure parameter Richard Henderson
2 siblings, 1 reply; 7+ messages in thread
From: Laurent Vivier @ 2015-08-23 23:42 UTC (permalink / raw)
To: Riku Voipio, Claudio Fontana, Richard Henderson,
Andrzej Zaborowski, Aurelien Jarno, Vassili Karpov (malc),
Alexander Graf, Blue Swirl
Cc: qemu-devel, Laurent Vivier
All tcg host architectures now support the guest base and as
there is no real performance lost, it can be always enabled.
Anyway, guest base use can be disabled lively by setting guest
base to 0.
CONFIG_USE_GUEST_BASE is defined as (USE_GUEST_BASE && USER_ONLY),
it should have to be replaced by CONFIG_USER_ONLY in non CONFIG_USER_ONLY
parts, but as some other parts are using !CONFIG_SOFTMMU I have chosen to
use !CONFIG_SOFTMMU instead.
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
bsd-user/elfload.c | 2 --
bsd-user/main.c | 12 ------------
bsd-user/qemu.h | 2 --
configure | 10 ----------
include/exec/cpu-all.h | 5 -----
linux-user/elfload.c | 2 --
linux-user/main.c | 12 ------------
linux-user/mmap.c | 4 ----
tcg/aarch64/tcg-target.c | 8 ++------
tcg/ia64/tcg-target.c | 4 +---
tcg/ppc/tcg-target.c | 6 ++----
tcg/s390/tcg-target.c | 2 +-
tcg/sparc/tcg-target.c | 6 ++----
translate-all.c | 2 +-
14 files changed, 9 insertions(+), 68 deletions(-)
diff --git a/bsd-user/elfload.c b/bsd-user/elfload.c
index 2bf57eb..d067779 100644
--- a/bsd-user/elfload.c
+++ b/bsd-user/elfload.c
@@ -1371,7 +1371,6 @@ int load_elf_binary(struct linux_binprm * bprm, struct target_pt_regs * regs,
info->mmap = 0;
elf_entry = (abi_ulong) elf_ex.e_entry;
-#if defined(CONFIG_USE_GUEST_BASE)
/*
* In case where user has not explicitly set the guest_base, we
* probe here that should we set it automatically.
@@ -1392,7 +1391,6 @@ int load_elf_binary(struct linux_binprm * bprm, struct target_pt_regs * regs,
}
}
}
-#endif /* CONFIG_USE_GUEST_BASE */
/* Do this so that we can load the interpreter, if need be. We will
change some of these later */
diff --git a/bsd-user/main.c b/bsd-user/main.c
index ee68daa..f0a1268 100644
--- a/bsd-user/main.c
+++ b/bsd-user/main.c
@@ -35,12 +35,10 @@
#include "qemu/envlist.h"
int singlestep;
-#if defined(CONFIG_USE_GUEST_BASE)
unsigned long mmap_min_addr;
unsigned long guest_base;
int have_guest_base;
unsigned long reserved_va;
-#endif
static const char *interp_prefix = CONFIG_QEMU_INTERP_PREFIX;
const char *qemu_uname_release;
@@ -682,9 +680,7 @@ static void usage(void)
"-drop-ld-preload drop LD_PRELOAD for target process\n"
"-E var=value sets/modifies targets environment variable(s)\n"
"-U var unsets targets environment variable(s)\n"
-#if defined(CONFIG_USE_GUEST_BASE)
"-B address set guest_base address to address\n"
-#endif
"-bsd type select emulated BSD type FreeBSD/NetBSD/OpenBSD (default)\n"
"\n"
"Debug options:\n"
@@ -830,11 +826,9 @@ int main(int argc, char **argv)
#endif
exit(1);
}
-#if defined(CONFIG_USE_GUEST_BASE)
} else if (!strcmp(r, "B")) {
guest_base = strtol(argv[optind++], NULL, 0);
have_guest_base = 1;
-#endif
} else if (!strcmp(r, "drop-ld-preload")) {
(void) envlist_unsetenv(envlist, "LD_PRELOAD");
} else if (!strcmp(r, "bsd")) {
@@ -923,7 +917,6 @@ int main(int argc, char **argv)
target_environ = envlist_to_environ(envlist, NULL);
envlist_free(envlist);
-#if defined(CONFIG_USE_GUEST_BASE)
/*
* Now that page sizes are configured in cpu_init() we can do
* proper page alignment for guest_base.
@@ -950,7 +943,6 @@ int main(int argc, char **argv)
fclose(fp);
}
}
-#endif /* CONFIG_USE_GUEST_BASE */
if (loader_exec(filename, argv+optind, target_environ, regs, info) != 0) {
printf("Error loading %s\n", filename);
@@ -964,9 +956,7 @@ int main(int argc, char **argv)
free(target_environ);
if (qemu_log_enabled()) {
-#if defined(CONFIG_USE_GUEST_BASE)
qemu_log("guest_base 0x%lx\n", guest_base);
-#endif
log_page_dump();
qemu_log("start_brk 0x" TARGET_ABI_FMT_lx "\n", info->start_brk);
@@ -986,12 +976,10 @@ int main(int argc, char **argv)
syscall_init();
signal_init();
-#if defined(CONFIG_USE_GUEST_BASE)
/* Now that we've loaded the binary, GUEST_BASE is fixed. Delay
generating the prologue until now so that the prologue can take
the real value of GUEST_BASE into account. */
tcg_prologue_init(&tcg_ctx);
-#endif
/* build Task State */
memset(ts, 0, sizeof(TaskState));
diff --git a/bsd-user/qemu.h b/bsd-user/qemu.h
index 5362297..21cc602 100644
--- a/bsd-user/qemu.h
+++ b/bsd-user/qemu.h
@@ -101,9 +101,7 @@ typedef struct TaskState {
void init_task_state(TaskState *ts);
extern const char *qemu_uname_release;
-#if defined(CONFIG_USE_GUEST_BASE)
extern unsigned long mmap_min_addr;
-#endif
/* ??? See if we can avoid exposing so much of the loader internals. */
/*
diff --git a/configure b/configure
index cc6ced9..9d24d59 100755
--- a/configure
+++ b/configure
@@ -293,7 +293,6 @@ cocoa="no"
softmmu="yes"
linux_user="no"
bsd_user="no"
-guest_base="yes"
aix="no"
blobs="yes"
pkgversion=""
@@ -975,10 +974,6 @@ for opt do
;;
--enable-bsd-user) bsd_user="yes"
;;
- --enable-guest-base) guest_base="yes"
- ;;
- --disable-guest-base) guest_base="no"
- ;;
--enable-pie) pie="yes"
;;
--disable-pie) pie="no"
@@ -1314,7 +1309,6 @@ disabled with --disable-FEATURE, default is enabled if available:
user supported user emulation targets
linux-user all linux usermode emulation targets
bsd-user all BSD usermode emulation targets
- guest-base GUEST_BASE support for usermode emulation targets
docs build documentation
guest-agent build the QEMU Guest Agent
guest-agent-msi build guest agent Windows MSI installation package
@@ -4544,7 +4538,6 @@ fi
echo "brlapi support $brlapi"
echo "bluez support $bluez"
echo "Documentation $docs"
-echo "GUEST_BASE $guest_base"
echo "PIE $pie"
echo "vde support $vde"
echo "netmap support $netmap"
@@ -5481,9 +5474,6 @@ fi
if test "$target_user_only" = "yes" -a "$bflt" = "yes"; then
echo "TARGET_HAS_BFLT=y" >> $config_target_mak
fi
-if test "$target_user_only" = "yes" -a "$guest_base" = "yes"; then
- echo "CONFIG_USE_GUEST_BASE=y" >> $config_target_mak
-fi
if test "$target_bsd_user" = "yes" ; then
echo "CONFIG_BSD_USER=y" >> $config_target_mak
fi
diff --git a/include/exec/cpu-all.h b/include/exec/cpu-all.h
index ea6a9a6..5713929 100644
--- a/include/exec/cpu-all.h
+++ b/include/exec/cpu-all.h
@@ -160,16 +160,11 @@ static inline void tswap64s(uint64_t *s)
/* On some host systems the guest address space is reserved on the host.
* This allows the guest address space to be offset to a convenient location.
*/
-#if defined(CONFIG_USE_GUEST_BASE)
extern unsigned long guest_base;
extern int have_guest_base;
extern unsigned long reserved_va;
#define GUEST_BASE guest_base
#define RESERVED_VA reserved_va
-#else
-#define GUEST_BASE 0ul
-#define RESERVED_VA 0ul
-#endif
#define GUEST_ADDR_MAX (RESERVED_VA ? RESERVED_VA : \
(1ul << TARGET_VIRT_ADDR_SPACE_BITS) - 1)
diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index 1788368..9c999ac 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -1756,7 +1756,6 @@ static void probe_guest_base(const char *image_name,
* it explicitly, and set guest_base appropriately.
* In case of error we will print a suitable message and exit.
*/
-#if defined(CONFIG_USE_GUEST_BASE)
const char *errmsg;
if (!have_guest_base && !reserved_va) {
unsigned long host_start, real_start, host_size;
@@ -1795,7 +1794,6 @@ static void probe_guest_base(const char *image_name,
exit_errmsg:
fprintf(stderr, "%s: %s\n", image_name, errmsg);
exit(-1);
-#endif
}
diff --git a/linux-user/main.c b/linux-user/main.c
index fdee981..2c9658e 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -43,7 +43,6 @@ int gdbstub_port;
envlist_t *envlist;
static const char *cpu_model;
unsigned long mmap_min_addr;
-#if defined(CONFIG_USE_GUEST_BASE)
unsigned long guest_base;
int have_guest_base;
#if (TARGET_LONG_BITS == 32) && (HOST_LONG_BITS == 64)
@@ -63,7 +62,6 @@ unsigned long reserved_va = 0xf7000000;
#else
unsigned long reserved_va;
#endif
-#endif
static void usage(void);
@@ -3584,7 +3582,6 @@ static void handle_arg_cpu(const char *arg)
}
}
-#if defined(CONFIG_USE_GUEST_BASE)
static void handle_arg_guest_base(const char *arg)
{
guest_base = strtol(arg, NULL, 0);
@@ -3626,7 +3623,6 @@ static void handle_arg_reserved_va(const char *arg)
exit(1);
}
}
-#endif
static void handle_arg_singlestep(const char *arg)
{
@@ -3673,12 +3669,10 @@ static const struct qemu_argument arg_table[] = {
"argv0", "forces target process argv[0] to be 'argv0'"},
{"r", "QEMU_UNAME", true, handle_arg_uname,
"uname", "set qemu uname release string to 'uname'"},
-#if defined(CONFIG_USE_GUEST_BASE)
{"B", "QEMU_GUEST_BASE", true, handle_arg_guest_base,
"address", "set guest_base address to 'address'"},
{"R", "QEMU_RESERVED_VA", true, handle_arg_reserved_va,
"size", "reserve 'size' bytes for guest virtual address space"},
-#endif
{"d", "QEMU_LOG", true, handle_arg_log,
"item[,...]", "enable logging of specified items "
"(use '-d help' for a list of items)"},
@@ -3954,7 +3948,6 @@ int main(int argc, char **argv, char **envp)
target_environ = envlist_to_environ(envlist, NULL);
envlist_free(envlist);
-#if defined(CONFIG_USE_GUEST_BASE)
/*
* Now that page sizes are configured in cpu_init() we can do
* proper page alignment for guest_base.
@@ -3976,7 +3969,6 @@ int main(int argc, char **argv, char **envp)
mmap_next_start = reserved_va;
}
}
-#endif /* CONFIG_USE_GUEST_BASE */
/*
* Read in mmap_min_addr kernel parameter. This value is used
@@ -4050,9 +4042,7 @@ int main(int argc, char **argv, char **envp)
free(target_environ);
if (qemu_log_enabled()) {
-#if defined(CONFIG_USE_GUEST_BASE)
qemu_log("guest_base 0x%lx\n", guest_base);
-#endif
log_page_dump();
qemu_log("start_brk 0x" TARGET_ABI_FMT_lx "\n", info->start_brk);
@@ -4072,12 +4062,10 @@ int main(int argc, char **argv, char **envp)
syscall_init();
signal_init();
-#if defined(CONFIG_USE_GUEST_BASE)
/* Now that we've loaded the binary, GUEST_BASE is fixed. Delay
generating the prologue until now so that the prologue can take
the real value of GUEST_BASE into account. */
tcg_prologue_init(&tcg_ctx);
-#endif
#if defined(TARGET_I386)
env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
diff --git a/linux-user/mmap.c b/linux-user/mmap.c
index 78e1b2d..88276e7 100644
--- a/linux-user/mmap.c
+++ b/linux-user/mmap.c
@@ -206,7 +206,6 @@ abi_ulong mmap_next_start = TASK_UNMAPPED_BASE;
unsigned long last_brk;
-#ifdef CONFIG_USE_GUEST_BASE
/* Subroutine of mmap_find_vma, used when we have pre-allocated a chunk
of guest address space. */
static abi_ulong mmap_find_vma_reserved(abi_ulong start, abi_ulong size)
@@ -253,7 +252,6 @@ static abi_ulong mmap_find_vma_reserved(abi_ulong start, abi_ulong size)
return addr;
}
-#endif
/*
* Find and reserve a free memory area of size 'size'. The search
@@ -276,11 +274,9 @@ abi_ulong mmap_find_vma(abi_ulong start, abi_ulong size)
size = HOST_PAGE_ALIGN(size);
-#ifdef CONFIG_USE_GUEST_BASE
if (RESERVED_VA) {
return mmap_find_vma_reserved(start, size);
}
-#endif
addr = start;
wrapped = repeat = 0;
diff --git a/tcg/aarch64/tcg-target.c b/tcg/aarch64/tcg-target.c
index b7ec4f5..ff51101 100644
--- a/tcg/aarch64/tcg-target.c
+++ b/tcg/aarch64/tcg-target.c
@@ -56,11 +56,7 @@ static const int tcg_target_call_oarg_regs[1] = {
#define TCG_REG_TMP TCG_REG_X30
#ifndef CONFIG_SOFTMMU
-# ifdef CONFIG_USE_GUEST_BASE
-# define TCG_REG_GUEST_BASE TCG_REG_X28
-# else
-# define TCG_REG_GUEST_BASE TCG_REG_XZR
-# endif
+#define TCG_REG_GUEST_BASE TCG_REG_X28
#endif
static inline void reloc_pc26(tcg_insn_unit *code_ptr, tcg_insn_unit *target)
@@ -1794,7 +1790,7 @@ static void tcg_target_qemu_prologue(TCGContext *s)
tcg_set_frame(s, TCG_REG_SP, TCG_STATIC_CALL_ARGS_SIZE,
CPU_TEMP_BUF_NLONGS * sizeof(long));
-#if defined(CONFIG_USE_GUEST_BASE)
+#if !defined(CONFIG_SOFTMMU)
if (GUEST_BASE) {
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_GUEST_BASE, GUEST_BASE);
tcg_regset_set_reg(s->reserved_regs, TCG_REG_GUEST_BASE);
diff --git a/tcg/ia64/tcg-target.c b/tcg/ia64/tcg-target.c
index 81cb9f7..f61f95d 100644
--- a/tcg/ia64/tcg-target.c
+++ b/tcg/ia64/tcg-target.c
@@ -40,10 +40,8 @@ static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
};
#endif
-#ifdef CONFIG_USE_GUEST_BASE
+#ifndef CONFIG_SOFTMMU
#define TCG_GUEST_BASE_REG TCG_REG_R55
-#else
-#define TCG_GUEST_BASE_REG TCG_REG_R0
#endif
#ifndef GUEST_BASE
#define GUEST_BASE 0
diff --git a/tcg/ppc/tcg-target.c b/tcg/ppc/tcg-target.c
index 2b6eafa..4b5af76 100644
--- a/tcg/ppc/tcg-target.c
+++ b/tcg/ppc/tcg-target.c
@@ -89,10 +89,8 @@ static bool have_isa_2_06;
#define HAVE_ISA_2_06 have_isa_2_06
#define HAVE_ISEL have_isa_2_06
-#ifdef CONFIG_USE_GUEST_BASE
+#ifndef CONFIG_SOFTMMU
#define TCG_GUEST_BASE_REG 30
-#else
-#define TCG_GUEST_BASE_REG 0
#endif
#ifndef NDEBUG
@@ -1779,7 +1777,7 @@ static void tcg_target_qemu_prologue(TCGContext *s)
}
tcg_out_st(s, TCG_TYPE_PTR, TCG_REG_R0, TCG_REG_R1, FRAME_SIZE+LR_OFFSET);
-#ifdef CONFIG_USE_GUEST_BASE
+#ifndef CONFIG_SOFTMMU
if (GUEST_BASE) {
tcg_out_movi(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, GUEST_BASE);
tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG);
diff --git a/tcg/s390/tcg-target.c b/tcg/s390/tcg-target.c
index aa718ec..5bf3ae2 100644
--- a/tcg/s390/tcg-target.c
+++ b/tcg/s390/tcg-target.c
@@ -51,7 +51,7 @@
/* A scratch register that may be be used throughout the backend. */
#define TCG_TMP0 TCG_REG_R14
-#ifdef CONFIG_USE_GUEST_BASE
+#ifndef CONFIG_SOFTMMU
#define TCG_GUEST_BASE_REG TCG_REG_R13
#else
#define TCG_GUEST_BASE_REG TCG_REG_R0
diff --git a/tcg/sparc/tcg-target.c b/tcg/sparc/tcg-target.c
index 1a870a8..8bb733a 100644
--- a/tcg/sparc/tcg-target.c
+++ b/tcg/sparc/tcg-target.c
@@ -83,10 +83,8 @@ static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
#define TCG_REG_T1 TCG_REG_G1
#define TCG_REG_T2 TCG_REG_O7
-#ifdef CONFIG_USE_GUEST_BASE
+#ifndef CONFIG_SOFTMMU
# define TCG_GUEST_BASE_REG TCG_REG_I5
-#else
-# define TCG_GUEST_BASE_REG TCG_REG_G0
#endif
static const int tcg_target_reg_alloc_order[] = {
@@ -955,7 +953,7 @@ static void tcg_target_qemu_prologue(TCGContext *s)
tcg_out32(s, SAVE | INSN_RD(TCG_REG_O6) | INSN_RS1(TCG_REG_O6) |
INSN_IMM13(-frame_size));
-#ifdef CONFIG_USE_GUEST_BASE
+#ifndef CONFIG_SOFTMMU
if (GUEST_BASE != 0) {
tcg_out_movi(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, GUEST_BASE);
tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG);
diff --git a/translate-all.c b/translate-all.c
index 9c46ffa..2a40530 100644
--- a/translate-all.c
+++ b/translate-all.c
@@ -688,7 +688,7 @@ void tcg_exec_init(unsigned long tb_size)
tcg_ctx.code_gen_ptr = tcg_ctx.code_gen_buffer;
tcg_register_jit(tcg_ctx.code_gen_buffer, tcg_ctx.code_gen_buffer_size);
page_init();
-#if !defined(CONFIG_USER_ONLY) || !defined(CONFIG_USE_GUEST_BASE)
+#if defined(CONFIG_SOFTMMU)
/* There's no guest base to take into account, so go ahead and
initialize the prologue now. */
tcg_prologue_init(&tcg_ctx);
--
2.4.3
^ permalink raw reply related [flat|nested] 7+ messages in thread
* [Qemu-devel] [PATCH 2/2] linux-user: remove useless macros GUEST_BASE and RESERVED_VA
2015-08-23 23:42 [Qemu-devel] [PATCH 0/2] linux-user: remove guest-base configure parameter Laurent Vivier
2015-08-23 23:42 ` [Qemu-devel] [PATCH 1/2] linux-user: remove --enable-guest-base/--disable-guest-base Laurent Vivier
@ 2015-08-23 23:42 ` Laurent Vivier
2015-08-24 5:00 ` Alexander Graf
2015-08-24 18:16 ` [Qemu-devel] [PATCH 0/2] linux-user: remove guest-base configure parameter Richard Henderson
2 siblings, 1 reply; 7+ messages in thread
From: Laurent Vivier @ 2015-08-23 23:42 UTC (permalink / raw)
To: Riku Voipio, Claudio Fontana, Richard Henderson,
Andrzej Zaborowski, Aurelien Jarno, Vassili Karpov (malc),
Alexander Graf, Blue Swirl
Cc: qemu-devel, Laurent Vivier
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
include/exec/cpu-all.h | 4 +---
include/exec/cpu_ldst.h | 8 ++++----
linux-user/mmap.c | 20 ++++++++++----------
tcg/aarch64/tcg-target.c | 10 +++++-----
tcg/arm/tcg-target.c | 8 ++++----
tcg/i386/tcg-target.c | 22 +++++++++++-----------
tcg/ia64/tcg-target.c | 21 +++++++++------------
tcg/mips/tcg-target.c | 16 ++++++++--------
tcg/ppc/tcg-target.c | 12 ++++--------
tcg/s390/tcg-target.c | 13 ++++---------
tcg/sparc/tcg-target.c | 8 ++++----
11 files changed, 64 insertions(+), 78 deletions(-)
diff --git a/include/exec/cpu-all.h b/include/exec/cpu-all.h
index 5713929..89db792 100644
--- a/include/exec/cpu-all.h
+++ b/include/exec/cpu-all.h
@@ -163,10 +163,8 @@ static inline void tswap64s(uint64_t *s)
extern unsigned long guest_base;
extern int have_guest_base;
extern unsigned long reserved_va;
-#define GUEST_BASE guest_base
-#define RESERVED_VA reserved_va
-#define GUEST_ADDR_MAX (RESERVED_VA ? RESERVED_VA : \
+#define GUEST_ADDR_MAX (reserved_va ? reserved_va : \
(1ul << TARGET_VIRT_ADDR_SPACE_BITS) - 1)
#endif
diff --git a/include/exec/cpu_ldst.h b/include/exec/cpu_ldst.h
index 1239c60..26f4794 100644
--- a/include/exec/cpu_ldst.h
+++ b/include/exec/cpu_ldst.h
@@ -49,20 +49,20 @@
#if defined(CONFIG_USER_ONLY)
/* All direct uses of g2h and h2g need to go away for usermode softmmu. */
-#define g2h(x) ((void *)((unsigned long)(target_ulong)(x) + GUEST_BASE))
+#define g2h(x) ((void *)((unsigned long)(target_ulong)(x) + guest_base))
#if HOST_LONG_BITS <= TARGET_VIRT_ADDR_SPACE_BITS
#define h2g_valid(x) 1
#else
#define h2g_valid(x) ({ \
- unsigned long __guest = (unsigned long)(x) - GUEST_BASE; \
+ unsigned long __guest = (unsigned long)(x) - guest_base; \
(__guest < (1ul << TARGET_VIRT_ADDR_SPACE_BITS)) && \
- (!RESERVED_VA || (__guest < RESERVED_VA)); \
+ (!reserved_va || (__guest < reserved_va)); \
})
#endif
#define h2g_nocheck(x) ({ \
- unsigned long __ret = (unsigned long)(x) - GUEST_BASE; \
+ unsigned long __ret = (unsigned long)(x) - guest_base; \
(abi_ulong)__ret; \
})
diff --git a/linux-user/mmap.c b/linux-user/mmap.c
index 88276e7..b2126c7 100644
--- a/linux-user/mmap.c
+++ b/linux-user/mmap.c
@@ -215,14 +215,14 @@ static abi_ulong mmap_find_vma_reserved(abi_ulong start, abi_ulong size)
int prot;
int looped = 0;
- if (size > RESERVED_VA) {
+ if (size > reserved_va) {
return (abi_ulong)-1;
}
size = HOST_PAGE_ALIGN(size);
end_addr = start + size;
- if (end_addr > RESERVED_VA) {
- end_addr = RESERVED_VA;
+ if (end_addr > reserved_va) {
+ end_addr = reserved_va;
}
addr = end_addr - qemu_host_page_size;
@@ -231,7 +231,7 @@ static abi_ulong mmap_find_vma_reserved(abi_ulong start, abi_ulong size)
if (looped) {
return (abi_ulong)-1;
}
- end_addr = RESERVED_VA;
+ end_addr = reserved_va;
addr = end_addr - qemu_host_page_size;
looped = 1;
continue;
@@ -274,7 +274,7 @@ abi_ulong mmap_find_vma(abi_ulong start, abi_ulong size)
size = HOST_PAGE_ALIGN(size);
- if (RESERVED_VA) {
+ if (reserved_va) {
return mmap_find_vma_reserved(start, size);
}
@@ -667,7 +667,7 @@ int target_munmap(abi_ulong start, abi_ulong len)
ret = 0;
/* unmap what we can */
if (real_start < real_end) {
- if (RESERVED_VA) {
+ if (reserved_va) {
mmap_reserve(real_start, real_end - real_start);
} else {
ret = munmap(g2h(real_start), real_end - real_start);
@@ -697,7 +697,7 @@ abi_long target_mremap(abi_ulong old_addr, abi_ulong old_size,
flags,
g2h(new_addr));
- if (RESERVED_VA && host_addr != MAP_FAILED) {
+ if (reserved_va && host_addr != MAP_FAILED) {
/* If new and old addresses overlap then the above mremap will
already have failed with EINVAL. */
mmap_reserve(old_addr, old_size);
@@ -715,13 +715,13 @@ abi_long target_mremap(abi_ulong old_addr, abi_ulong old_size,
old_size, new_size,
flags | MREMAP_FIXED,
g2h(mmap_start));
- if ( RESERVED_VA ) {
+ if (reserved_va) {
mmap_reserve(old_addr, old_size);
}
}
} else {
int prot = 0;
- if (RESERVED_VA && old_size < new_size) {
+ if (reserved_va && old_size < new_size) {
abi_ulong addr;
for (addr = old_addr + old_size;
addr < old_addr + new_size;
@@ -731,7 +731,7 @@ abi_long target_mremap(abi_ulong old_addr, abi_ulong old_size,
}
if (prot == 0) {
host_addr = mremap(g2h(old_addr), old_size, new_size, flags);
- if (host_addr != MAP_FAILED && RESERVED_VA && old_size > new_size) {
+ if (host_addr != MAP_FAILED && reserved_va && old_size > new_size) {
mmap_reserve(old_addr + old_size, new_size - old_size);
}
} else {
diff --git a/tcg/aarch64/tcg-target.c b/tcg/aarch64/tcg-target.c
index ff51101..80890e7 100644
--- a/tcg/aarch64/tcg-target.c
+++ b/tcg/aarch64/tcg-target.c
@@ -30,7 +30,7 @@ static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
static const int tcg_target_reg_alloc_order[] = {
TCG_REG_X20, TCG_REG_X21, TCG_REG_X22, TCG_REG_X23,
TCG_REG_X24, TCG_REG_X25, TCG_REG_X26, TCG_REG_X27,
- TCG_REG_X28, /* we will reserve this for GUEST_BASE if configured */
+ TCG_REG_X28, /* we will reserve this for guest_base if configured */
TCG_REG_X8, TCG_REG_X9, TCG_REG_X10, TCG_REG_X11,
TCG_REG_X12, TCG_REG_X13, TCG_REG_X14, TCG_REG_X15,
@@ -1213,7 +1213,7 @@ static void tcg_out_qemu_ld(TCGContext *s, TCGReg data_reg, TCGReg addr_reg,
s->code_ptr, label_ptr);
#else /* !CONFIG_SOFTMMU */
tcg_out_qemu_ld_direct(s, memop, ext, data_reg,
- GUEST_BASE ? TCG_REG_GUEST_BASE : TCG_REG_XZR,
+ guest_base ? TCG_REG_GUEST_BASE : TCG_REG_XZR,
otype, addr_reg);
#endif /* CONFIG_SOFTMMU */
}
@@ -1235,7 +1235,7 @@ static void tcg_out_qemu_st(TCGContext *s, TCGReg data_reg, TCGReg addr_reg,
s->code_ptr, label_ptr);
#else /* !CONFIG_SOFTMMU */
tcg_out_qemu_st_direct(s, memop, data_reg,
- GUEST_BASE ? TCG_REG_GUEST_BASE : TCG_REG_XZR,
+ guest_base ? TCG_REG_GUEST_BASE : TCG_REG_XZR,
otype, addr_reg);
#endif /* CONFIG_SOFTMMU */
}
@@ -1791,8 +1791,8 @@ static void tcg_target_qemu_prologue(TCGContext *s)
CPU_TEMP_BUF_NLONGS * sizeof(long));
#if !defined(CONFIG_SOFTMMU)
- if (GUEST_BASE) {
- tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_GUEST_BASE, GUEST_BASE);
+ if (guest_base) {
+ tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_GUEST_BASE, guest_base);
tcg_regset_set_reg(s->reserved_regs, TCG_REG_GUEST_BASE);
}
#endif
diff --git a/tcg/arm/tcg-target.c b/tcg/arm/tcg-target.c
index ae2ec7a..3edf6a6 100644
--- a/tcg/arm/tcg-target.c
+++ b/tcg/arm/tcg-target.c
@@ -1493,8 +1493,8 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, bool is64)
add_qemu_ldst_label(s, true, oi, datalo, datahi, addrlo, addrhi,
s->code_ptr, label_ptr);
#else /* !CONFIG_SOFTMMU */
- if (GUEST_BASE) {
- tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_TMP, GUEST_BASE);
+ if (guest_base) {
+ tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_TMP, guest_base);
tcg_out_qemu_ld_index(s, opc, datalo, datahi, addrlo, TCG_REG_TMP);
} else {
tcg_out_qemu_ld_direct(s, opc, datalo, datahi, addrlo);
@@ -1623,8 +1623,8 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is64)
add_qemu_ldst_label(s, false, oi, datalo, datahi, addrlo, addrhi,
s->code_ptr, label_ptr);
#else /* !CONFIG_SOFTMMU */
- if (GUEST_BASE) {
- tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_TMP, GUEST_BASE);
+ if (guest_base) {
+ tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_TMP, guest_base);
tcg_out_qemu_st_index(s, COND_AL, opc, datalo,
datahi, addrlo, TCG_REG_TMP);
} else {
diff --git a/tcg/i386/tcg-target.c b/tcg/i386/tcg-target.c
index 887f22f..5df735d 100644
--- a/tcg/i386/tcg-target.c
+++ b/tcg/i386/tcg-target.c
@@ -1424,7 +1424,7 @@ int arch_prctl(int code, unsigned long addr);
static int guest_base_flags;
static inline void setup_guest_base_seg(void)
{
- if (arch_prctl(ARCH_SET_GS, GUEST_BASE) == 0) {
+ if (arch_prctl(ARCH_SET_GS, guest_base) == 0) {
guest_base_flags = P_GS;
}
}
@@ -1571,7 +1571,7 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, bool is64)
s->code_ptr, label_ptr);
#else
{
- int32_t offset = GUEST_BASE;
+ int32_t offset = guest_base;
TCGReg base = addrlo;
int index = -1;
int seg = 0;
@@ -1580,7 +1580,7 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, bool is64)
We can do this with the ADDR32 prefix if we're not using
a guest base, or when using segmentation. Otherwise we
need to zero-extend manually. */
- if (GUEST_BASE == 0 || guest_base_flags) {
+ if (guest_base == 0 || guest_base_flags) {
seg = guest_base_flags;
offset = 0;
if (TCG_TARGET_REG_BITS > TARGET_LONG_BITS) {
@@ -1591,8 +1591,8 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, bool is64)
tcg_out_ext32u(s, TCG_REG_L0, base);
base = TCG_REG_L0;
}
- if (offset != GUEST_BASE) {
- tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_L1, GUEST_BASE);
+ if (offset != guest_base) {
+ tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_L1, guest_base);
index = TCG_REG_L1;
offset = 0;
}
@@ -1713,12 +1713,12 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is64)
s->code_ptr, label_ptr);
#else
{
- int32_t offset = GUEST_BASE;
+ int32_t offset = guest_base;
TCGReg base = addrlo;
int seg = 0;
/* See comment in tcg_out_qemu_ld re zero-extension of addrlo. */
- if (GUEST_BASE == 0 || guest_base_flags) {
+ if (guest_base == 0 || guest_base_flags) {
seg = guest_base_flags;
offset = 0;
if (TCG_TARGET_REG_BITS > TARGET_LONG_BITS) {
@@ -1727,12 +1727,12 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is64)
} else if (TCG_TARGET_REG_BITS == 64) {
/* ??? Note that we can't use the same SIB addressing scheme
as for loads, since we require L0 free for bswap. */
- if (offset != GUEST_BASE) {
+ if (offset != guest_base) {
if (TARGET_LONG_BITS == 32) {
tcg_out_ext32u(s, TCG_REG_L0, base);
base = TCG_REG_L0;
}
- tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_L1, GUEST_BASE);
+ tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_L1, guest_base);
tgen_arithr(s, ARITH_ADD + P_REXW, TCG_REG_L1, base);
base = TCG_REG_L1;
offset = 0;
@@ -2306,8 +2306,8 @@ static void tcg_target_qemu_prologue(TCGContext *s)
tcg_out_opc(s, OPC_RET, 0, 0, 0);
#if !defined(CONFIG_SOFTMMU)
- /* Try to set up a segment register to point to GUEST_BASE. */
- if (GUEST_BASE) {
+ /* Try to set up a segment register to point to guest_base. */
+ if (guest_base) {
setup_guest_base_seg();
}
#endif
diff --git a/tcg/ia64/tcg-target.c b/tcg/ia64/tcg-target.c
index f61f95d..8f0aa23 100644
--- a/tcg/ia64/tcg-target.c
+++ b/tcg/ia64/tcg-target.c
@@ -43,9 +43,6 @@ static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
#ifndef CONFIG_SOFTMMU
#define TCG_GUEST_BASE_REG TCG_REG_R55
#endif
-#ifndef GUEST_BASE
-#define GUEST_BASE 0
-#endif
/* Branch registers */
enum {
@@ -1763,7 +1760,7 @@ static inline void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args)
bswap = opc & MO_BSWAP;
#if TARGET_LONG_BITS == 32
- if (GUEST_BASE != 0) {
+ if (guest_base != 0) {
tcg_out_bundle(s, mII,
INSN_NOP_M,
tcg_opc_i29(TCG_REG_P0, OPC_ZXT4_I29,
@@ -1827,7 +1824,7 @@ static inline void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args)
}
}
#else
- if (GUEST_BASE != 0) {
+ if (guest_base != 0) {
tcg_out_bundle(s, MmI,
tcg_opc_a1 (TCG_REG_P0, OPC_ADD_A1, TCG_REG_R2,
TCG_GUEST_BASE_REG, addr_reg),
@@ -1887,7 +1884,7 @@ static inline void tcg_out_qemu_st(TCGContext *s, const TCGArg *args)
bswap = opc & MO_BSWAP;
#if TARGET_LONG_BITS == 32
- if (GUEST_BASE != 0) {
+ if (guest_base != 0) {
tcg_out_bundle(s, mII,
INSN_NOP_M,
tcg_opc_i29(TCG_REG_P0, OPC_ZXT4_I29,
@@ -1933,7 +1930,7 @@ static inline void tcg_out_qemu_st(TCGContext *s, const TCGArg *args)
INSN_NOP_M,
INSN_NOP_I);
#else
- if (GUEST_BASE != 0) {
+ if (guest_base != 0) {
add_guest_base = tcg_opc_a1 (TCG_REG_P0, OPC_ADD_A1, TCG_REG_R2,
TCG_GUEST_BASE_REG, addr_reg);
addr_reg = TCG_REG_R2;
@@ -1942,7 +1939,7 @@ static inline void tcg_out_qemu_st(TCGContext *s, const TCGArg *args)
}
if (!bswap) {
- tcg_out_bundle(s, (GUEST_BASE ? MmI : mmI),
+ tcg_out_bundle(s, (guest_base ? MmI : mmI),
add_guest_base,
tcg_opc_m4 (TCG_REG_P0, opc_st_m4[s_bits],
data_reg, addr_reg),
@@ -2347,14 +2344,14 @@ static void tcg_target_qemu_prologue(TCGContext *s)
tcg_opc_i21(TCG_REG_P0, OPC_MOV_I21,
TCG_REG_B6, TCG_REG_R33, 0));
- /* ??? If GUEST_BASE < 0x200000, we could load the register via
+ /* ??? If guest_base < 0x200000, we could load the register via
an ADDL in the M slot of the next bundle. */
- if (GUEST_BASE != 0) {
+ if (guest_base != 0) {
tcg_out_bundle(s, mlx,
INSN_NOP_M,
- tcg_opc_l2 (GUEST_BASE),
+ tcg_opc_l2(guest_base),
tcg_opc_x2 (TCG_REG_P0, OPC_MOVL_X2,
- TCG_GUEST_BASE_REG, GUEST_BASE));
+ TCG_GUEST_BASE_REG, guest_base));
tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG);
}
diff --git a/tcg/mips/tcg-target.c b/tcg/mips/tcg-target.c
index e97980d..c0ce520 100644
--- a/tcg/mips/tcg-target.c
+++ b/tcg/mips/tcg-target.c
@@ -1180,12 +1180,12 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, bool is_64)
add_qemu_ldst_label(s, 1, oi, data_regl, data_regh, addr_regl, addr_regh,
s->code_ptr, label_ptr);
#else
- if (GUEST_BASE == 0 && data_regl != addr_regl) {
+ if (guest_base == 0 && data_regl != addr_regl) {
base = addr_regl;
- } else if (GUEST_BASE == (int16_t)GUEST_BASE) {
- tcg_out_opc_imm(s, OPC_ADDIU, base, addr_regl, GUEST_BASE);
+ } else if (guest_base == (int16_t)guest_base) {
+ tcg_out_opc_imm(s, OPC_ADDIU, base, addr_regl, guest_base);
} else {
- tcg_out_movi(s, TCG_TYPE_PTR, base, GUEST_BASE);
+ tcg_out_movi(s, TCG_TYPE_PTR, base, guest_base);
tcg_out_opc_reg(s, OPC_ADDU, base, base, addr_regl);
}
tcg_out_qemu_ld_direct(s, data_regl, data_regh, base, opc);
@@ -1314,14 +1314,14 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is_64)
add_qemu_ldst_label(s, 0, oi, data_regl, data_regh, addr_regl, addr_regh,
s->code_ptr, label_ptr);
#else
- if (GUEST_BASE == 0) {
+ if (guest_base == 0) {
base = addr_regl;
} else {
base = TCG_REG_A0;
- if (GUEST_BASE == (int16_t)GUEST_BASE) {
- tcg_out_opc_imm(s, OPC_ADDIU, base, addr_regl, GUEST_BASE);
+ if (guest_base == (int16_t)guest_base) {
+ tcg_out_opc_imm(s, OPC_ADDIU, base, addr_regl, guest_base);
} else {
- tcg_out_movi(s, TCG_TYPE_PTR, base, GUEST_BASE);
+ tcg_out_movi(s, TCG_TYPE_PTR, base, guest_base);
tcg_out_opc_reg(s, OPC_ADDU, base, base, addr_regl);
}
}
diff --git a/tcg/ppc/tcg-target.c b/tcg/ppc/tcg-target.c
index 4b5af76..df9759c 100644
--- a/tcg/ppc/tcg-target.c
+++ b/tcg/ppc/tcg-target.c
@@ -80,10 +80,6 @@
static tcg_insn_unit *tb_ret_addr;
-#ifndef GUEST_BASE
-#define GUEST_BASE 0
-#endif
-
#include "elf.h"
static bool have_isa_2_06;
#define HAVE_ISA_2_06 have_isa_2_06
@@ -1598,7 +1594,7 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, bool is_64)
rbase = TCG_REG_R3;
#else /* !CONFIG_SOFTMMU */
- rbase = GUEST_BASE ? TCG_GUEST_BASE_REG : 0;
+ rbase = guest_base ? TCG_GUEST_BASE_REG : 0;
if (TCG_TARGET_REG_BITS > TARGET_LONG_BITS) {
tcg_out_ext32u(s, TCG_REG_TMP1, addrlo);
addrlo = TCG_REG_TMP1;
@@ -1673,7 +1669,7 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is_64)
rbase = TCG_REG_R3;
#else /* !CONFIG_SOFTMMU */
- rbase = GUEST_BASE ? TCG_GUEST_BASE_REG : 0;
+ rbase = guest_base ? TCG_GUEST_BASE_REG : 0;
if (TCG_TARGET_REG_BITS > TARGET_LONG_BITS) {
tcg_out_ext32u(s, TCG_REG_TMP1, addrlo);
addrlo = TCG_REG_TMP1;
@@ -1778,8 +1774,8 @@ static void tcg_target_qemu_prologue(TCGContext *s)
tcg_out_st(s, TCG_TYPE_PTR, TCG_REG_R0, TCG_REG_R1, FRAME_SIZE+LR_OFFSET);
#ifndef CONFIG_SOFTMMU
- if (GUEST_BASE) {
- tcg_out_movi(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, GUEST_BASE);
+ if (guest_base) {
+ tcg_out_movi(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, guest_base);
tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG);
}
#endif
diff --git a/tcg/s390/tcg-target.c b/tcg/s390/tcg-target.c
index 5bf3ae2..cf7cda9 100644
--- a/tcg/s390/tcg-target.c
+++ b/tcg/s390/tcg-target.c
@@ -57,11 +57,6 @@
#define TCG_GUEST_BASE_REG TCG_REG_R0
#endif
-#ifndef GUEST_BASE
-#define GUEST_BASE 0
-#endif
-
-
/* All of the following instructions are prefixed with their instruction
format, and are defined as 8- or 16-bit quantities, even when the two
halves of the 16-bit quantity may appear 32 bits apart in the insn.
@@ -1622,9 +1617,9 @@ static void tcg_prepare_user_ldst(TCGContext *s, TCGReg *addr_reg,
tgen_ext32u(s, TCG_TMP0, *addr_reg);
*addr_reg = TCG_TMP0;
}
- if (GUEST_BASE < 0x80000) {
+ if (guest_base < 0x80000) {
*index_reg = TCG_REG_NONE;
- *disp = GUEST_BASE;
+ *disp = guest_base;
} else {
*index_reg = TCG_GUEST_BASE_REG;
*disp = 0;
@@ -2328,8 +2323,8 @@ static void tcg_target_qemu_prologue(TCGContext *s)
TCG_STATIC_CALL_ARGS_SIZE + TCG_TARGET_CALL_STACK_OFFSET,
CPU_TEMP_BUF_NLONGS * sizeof(long));
- if (GUEST_BASE >= 0x80000) {
- tcg_out_movi(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, GUEST_BASE);
+ if (guest_base >= 0x80000) {
+ tcg_out_movi(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, guest_base);
tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG);
}
diff --git a/tcg/sparc/tcg-target.c b/tcg/sparc/tcg-target.c
index 8bb733a..875765d 100644
--- a/tcg/sparc/tcg-target.c
+++ b/tcg/sparc/tcg-target.c
@@ -954,8 +954,8 @@ static void tcg_target_qemu_prologue(TCGContext *s)
INSN_IMM13(-frame_size));
#ifndef CONFIG_SOFTMMU
- if (GUEST_BASE != 0) {
- tcg_out_movi(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, GUEST_BASE);
+ if (guest_base != 0) {
+ tcg_out_movi(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, guest_base);
tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG);
}
#endif
@@ -1144,7 +1144,7 @@ static void tcg_out_qemu_ld(TCGContext *s, TCGReg data, TCGReg addr,
addr = TCG_REG_T1;
}
tcg_out_ldst_rr(s, data, addr,
- (GUEST_BASE ? TCG_GUEST_BASE_REG : TCG_REG_G0),
+ (guest_base ? TCG_GUEST_BASE_REG : TCG_REG_G0),
qemu_ld_opc[memop & (MO_BSWAP | MO_SSIZE)]);
#endif /* CONFIG_SOFTMMU */
}
@@ -1199,7 +1199,7 @@ static void tcg_out_qemu_st(TCGContext *s, TCGReg data, TCGReg addr,
addr = TCG_REG_T1;
}
tcg_out_ldst_rr(s, data, addr,
- (GUEST_BASE ? TCG_GUEST_BASE_REG : TCG_REG_G0),
+ (guest_base ? TCG_GUEST_BASE_REG : TCG_REG_G0),
qemu_st_opc[memop & (MO_BSWAP | MO_SIZE)]);
#endif /* CONFIG_SOFTMMU */
}
--
2.4.3
^ permalink raw reply related [flat|nested] 7+ messages in thread
* Re: [Qemu-devel] [PATCH 1/2] linux-user: remove --enable-guest-base/--disable-guest-base
2015-08-23 23:42 ` [Qemu-devel] [PATCH 1/2] linux-user: remove --enable-guest-base/--disable-guest-base Laurent Vivier
@ 2015-08-24 4:59 ` Alexander Graf
0 siblings, 0 replies; 7+ messages in thread
From: Alexander Graf @ 2015-08-24 4:59 UTC (permalink / raw)
To: Laurent Vivier, Riku Voipio, Claudio Fontana, Richard Henderson,
Andrzej Zaborowski, Aurelien Jarno, Vassili Karpov (malc),
Blue Swirl
Cc: qemu-devel
On 23.08.15 16:42, Laurent Vivier wrote:
> All tcg host architectures now support the guest base and as
> there is no real performance lost, it can be always enabled.
>
> Anyway, guest base use can be disabled lively by setting guest
> base to 0.
>
> CONFIG_USE_GUEST_BASE is defined as (USE_GUEST_BASE && USER_ONLY),
> it should have to be replaced by CONFIG_USER_ONLY in non CONFIG_USER_ONLY
> parts, but as some other parts are using !CONFIG_SOFTMMU I have chosen to
> use !CONFIG_SOFTMMU instead.
>
> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Alexander Graf <agraf@suse.de>
Alex
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [Qemu-devel] [PATCH 2/2] linux-user: remove useless macros GUEST_BASE and RESERVED_VA
2015-08-23 23:42 ` [Qemu-devel] [PATCH 2/2] linux-user: remove useless macros GUEST_BASE and RESERVED_VA Laurent Vivier
@ 2015-08-24 5:00 ` Alexander Graf
2015-08-24 12:53 ` [Qemu-devel] [PATCH v2 " Laurent Vivier
0 siblings, 1 reply; 7+ messages in thread
From: Alexander Graf @ 2015-08-24 5:00 UTC (permalink / raw)
To: Laurent Vivier, Riku Voipio, Claudio Fontana, Richard Henderson,
Andrzej Zaborowski, Aurelien Jarno, Vassili Karpov (malc),
Blue Swirl
Cc: qemu-devel
On 23.08.15 16:42, Laurent Vivier wrote:
> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
I would prefer to have a commit message here. It's not critical in this
patch, but makes life easier for people who dig through them later in
the git log, so they don't see the patch contents.
Reviewed-by: Alexander Graf <agraf@suse.de>
Alex
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Qemu-devel] [PATCH v2 2/2] linux-user: remove useless macros GUEST_BASE and RESERVED_VA
2015-08-24 5:00 ` Alexander Graf
@ 2015-08-24 12:53 ` Laurent Vivier
0 siblings, 0 replies; 7+ messages in thread
From: Laurent Vivier @ 2015-08-24 12:53 UTC (permalink / raw)
To: Riku Voipio, Claudio Fontana, Richard Henderson,
Andrzej Zaborowski, Aurelien Jarno, Alexander Graf, Blue Swirl
Cc: qemu-devel, Laurent Vivier
As we have removed CONFIG_USE_GUEST_BASE, we always use a guest base
and the macros GUEST_BASE and RESERVED_VA become useless: replace
them by their values.
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
v2: add a commit message. Repost only PATCH 2.
include/exec/cpu-all.h | 4 +---
include/exec/cpu_ldst.h | 8 ++++----
linux-user/mmap.c | 20 ++++++++++----------
tcg/aarch64/tcg-target.c | 10 +++++-----
tcg/arm/tcg-target.c | 8 ++++----
tcg/i386/tcg-target.c | 22 +++++++++++-----------
tcg/ia64/tcg-target.c | 21 +++++++++------------
tcg/mips/tcg-target.c | 16 ++++++++--------
tcg/ppc/tcg-target.c | 12 ++++--------
tcg/s390/tcg-target.c | 13 ++++---------
tcg/sparc/tcg-target.c | 8 ++++----
11 files changed, 64 insertions(+), 78 deletions(-)
diff --git a/include/exec/cpu-all.h b/include/exec/cpu-all.h
index 5713929..89db792 100644
--- a/include/exec/cpu-all.h
+++ b/include/exec/cpu-all.h
@@ -163,10 +163,8 @@ static inline void tswap64s(uint64_t *s)
extern unsigned long guest_base;
extern int have_guest_base;
extern unsigned long reserved_va;
-#define GUEST_BASE guest_base
-#define RESERVED_VA reserved_va
-#define GUEST_ADDR_MAX (RESERVED_VA ? RESERVED_VA : \
+#define GUEST_ADDR_MAX (reserved_va ? reserved_va : \
(1ul << TARGET_VIRT_ADDR_SPACE_BITS) - 1)
#endif
diff --git a/include/exec/cpu_ldst.h b/include/exec/cpu_ldst.h
index 1239c60..26f4794 100644
--- a/include/exec/cpu_ldst.h
+++ b/include/exec/cpu_ldst.h
@@ -49,20 +49,20 @@
#if defined(CONFIG_USER_ONLY)
/* All direct uses of g2h and h2g need to go away for usermode softmmu. */
-#define g2h(x) ((void *)((unsigned long)(target_ulong)(x) + GUEST_BASE))
+#define g2h(x) ((void *)((unsigned long)(target_ulong)(x) + guest_base))
#if HOST_LONG_BITS <= TARGET_VIRT_ADDR_SPACE_BITS
#define h2g_valid(x) 1
#else
#define h2g_valid(x) ({ \
- unsigned long __guest = (unsigned long)(x) - GUEST_BASE; \
+ unsigned long __guest = (unsigned long)(x) - guest_base; \
(__guest < (1ul << TARGET_VIRT_ADDR_SPACE_BITS)) && \
- (!RESERVED_VA || (__guest < RESERVED_VA)); \
+ (!reserved_va || (__guest < reserved_va)); \
})
#endif
#define h2g_nocheck(x) ({ \
- unsigned long __ret = (unsigned long)(x) - GUEST_BASE; \
+ unsigned long __ret = (unsigned long)(x) - guest_base; \
(abi_ulong)__ret; \
})
diff --git a/linux-user/mmap.c b/linux-user/mmap.c
index 88276e7..b2126c7 100644
--- a/linux-user/mmap.c
+++ b/linux-user/mmap.c
@@ -215,14 +215,14 @@ static abi_ulong mmap_find_vma_reserved(abi_ulong start, abi_ulong size)
int prot;
int looped = 0;
- if (size > RESERVED_VA) {
+ if (size > reserved_va) {
return (abi_ulong)-1;
}
size = HOST_PAGE_ALIGN(size);
end_addr = start + size;
- if (end_addr > RESERVED_VA) {
- end_addr = RESERVED_VA;
+ if (end_addr > reserved_va) {
+ end_addr = reserved_va;
}
addr = end_addr - qemu_host_page_size;
@@ -231,7 +231,7 @@ static abi_ulong mmap_find_vma_reserved(abi_ulong start, abi_ulong size)
if (looped) {
return (abi_ulong)-1;
}
- end_addr = RESERVED_VA;
+ end_addr = reserved_va;
addr = end_addr - qemu_host_page_size;
looped = 1;
continue;
@@ -274,7 +274,7 @@ abi_ulong mmap_find_vma(abi_ulong start, abi_ulong size)
size = HOST_PAGE_ALIGN(size);
- if (RESERVED_VA) {
+ if (reserved_va) {
return mmap_find_vma_reserved(start, size);
}
@@ -667,7 +667,7 @@ int target_munmap(abi_ulong start, abi_ulong len)
ret = 0;
/* unmap what we can */
if (real_start < real_end) {
- if (RESERVED_VA) {
+ if (reserved_va) {
mmap_reserve(real_start, real_end - real_start);
} else {
ret = munmap(g2h(real_start), real_end - real_start);
@@ -697,7 +697,7 @@ abi_long target_mremap(abi_ulong old_addr, abi_ulong old_size,
flags,
g2h(new_addr));
- if (RESERVED_VA && host_addr != MAP_FAILED) {
+ if (reserved_va && host_addr != MAP_FAILED) {
/* If new and old addresses overlap then the above mremap will
already have failed with EINVAL. */
mmap_reserve(old_addr, old_size);
@@ -715,13 +715,13 @@ abi_long target_mremap(abi_ulong old_addr, abi_ulong old_size,
old_size, new_size,
flags | MREMAP_FIXED,
g2h(mmap_start));
- if ( RESERVED_VA ) {
+ if (reserved_va) {
mmap_reserve(old_addr, old_size);
}
}
} else {
int prot = 0;
- if (RESERVED_VA && old_size < new_size) {
+ if (reserved_va && old_size < new_size) {
abi_ulong addr;
for (addr = old_addr + old_size;
addr < old_addr + new_size;
@@ -731,7 +731,7 @@ abi_long target_mremap(abi_ulong old_addr, abi_ulong old_size,
}
if (prot == 0) {
host_addr = mremap(g2h(old_addr), old_size, new_size, flags);
- if (host_addr != MAP_FAILED && RESERVED_VA && old_size > new_size) {
+ if (host_addr != MAP_FAILED && reserved_va && old_size > new_size) {
mmap_reserve(old_addr + old_size, new_size - old_size);
}
} else {
diff --git a/tcg/aarch64/tcg-target.c b/tcg/aarch64/tcg-target.c
index ff51101..80890e7 100644
--- a/tcg/aarch64/tcg-target.c
+++ b/tcg/aarch64/tcg-target.c
@@ -30,7 +30,7 @@ static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
static const int tcg_target_reg_alloc_order[] = {
TCG_REG_X20, TCG_REG_X21, TCG_REG_X22, TCG_REG_X23,
TCG_REG_X24, TCG_REG_X25, TCG_REG_X26, TCG_REG_X27,
- TCG_REG_X28, /* we will reserve this for GUEST_BASE if configured */
+ TCG_REG_X28, /* we will reserve this for guest_base if configured */
TCG_REG_X8, TCG_REG_X9, TCG_REG_X10, TCG_REG_X11,
TCG_REG_X12, TCG_REG_X13, TCG_REG_X14, TCG_REG_X15,
@@ -1213,7 +1213,7 @@ static void tcg_out_qemu_ld(TCGContext *s, TCGReg data_reg, TCGReg addr_reg,
s->code_ptr, label_ptr);
#else /* !CONFIG_SOFTMMU */
tcg_out_qemu_ld_direct(s, memop, ext, data_reg,
- GUEST_BASE ? TCG_REG_GUEST_BASE : TCG_REG_XZR,
+ guest_base ? TCG_REG_GUEST_BASE : TCG_REG_XZR,
otype, addr_reg);
#endif /* CONFIG_SOFTMMU */
}
@@ -1235,7 +1235,7 @@ static void tcg_out_qemu_st(TCGContext *s, TCGReg data_reg, TCGReg addr_reg,
s->code_ptr, label_ptr);
#else /* !CONFIG_SOFTMMU */
tcg_out_qemu_st_direct(s, memop, data_reg,
- GUEST_BASE ? TCG_REG_GUEST_BASE : TCG_REG_XZR,
+ guest_base ? TCG_REG_GUEST_BASE : TCG_REG_XZR,
otype, addr_reg);
#endif /* CONFIG_SOFTMMU */
}
@@ -1791,8 +1791,8 @@ static void tcg_target_qemu_prologue(TCGContext *s)
CPU_TEMP_BUF_NLONGS * sizeof(long));
#if !defined(CONFIG_SOFTMMU)
- if (GUEST_BASE) {
- tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_GUEST_BASE, GUEST_BASE);
+ if (guest_base) {
+ tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_GUEST_BASE, guest_base);
tcg_regset_set_reg(s->reserved_regs, TCG_REG_GUEST_BASE);
}
#endif
diff --git a/tcg/arm/tcg-target.c b/tcg/arm/tcg-target.c
index ae2ec7a..3edf6a6 100644
--- a/tcg/arm/tcg-target.c
+++ b/tcg/arm/tcg-target.c
@@ -1493,8 +1493,8 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, bool is64)
add_qemu_ldst_label(s, true, oi, datalo, datahi, addrlo, addrhi,
s->code_ptr, label_ptr);
#else /* !CONFIG_SOFTMMU */
- if (GUEST_BASE) {
- tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_TMP, GUEST_BASE);
+ if (guest_base) {
+ tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_TMP, guest_base);
tcg_out_qemu_ld_index(s, opc, datalo, datahi, addrlo, TCG_REG_TMP);
} else {
tcg_out_qemu_ld_direct(s, opc, datalo, datahi, addrlo);
@@ -1623,8 +1623,8 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is64)
add_qemu_ldst_label(s, false, oi, datalo, datahi, addrlo, addrhi,
s->code_ptr, label_ptr);
#else /* !CONFIG_SOFTMMU */
- if (GUEST_BASE) {
- tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_TMP, GUEST_BASE);
+ if (guest_base) {
+ tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_TMP, guest_base);
tcg_out_qemu_st_index(s, COND_AL, opc, datalo,
datahi, addrlo, TCG_REG_TMP);
} else {
diff --git a/tcg/i386/tcg-target.c b/tcg/i386/tcg-target.c
index 887f22f..5df735d 100644
--- a/tcg/i386/tcg-target.c
+++ b/tcg/i386/tcg-target.c
@@ -1424,7 +1424,7 @@ int arch_prctl(int code, unsigned long addr);
static int guest_base_flags;
static inline void setup_guest_base_seg(void)
{
- if (arch_prctl(ARCH_SET_GS, GUEST_BASE) == 0) {
+ if (arch_prctl(ARCH_SET_GS, guest_base) == 0) {
guest_base_flags = P_GS;
}
}
@@ -1571,7 +1571,7 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, bool is64)
s->code_ptr, label_ptr);
#else
{
- int32_t offset = GUEST_BASE;
+ int32_t offset = guest_base;
TCGReg base = addrlo;
int index = -1;
int seg = 0;
@@ -1580,7 +1580,7 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, bool is64)
We can do this with the ADDR32 prefix if we're not using
a guest base, or when using segmentation. Otherwise we
need to zero-extend manually. */
- if (GUEST_BASE == 0 || guest_base_flags) {
+ if (guest_base == 0 || guest_base_flags) {
seg = guest_base_flags;
offset = 0;
if (TCG_TARGET_REG_BITS > TARGET_LONG_BITS) {
@@ -1591,8 +1591,8 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, bool is64)
tcg_out_ext32u(s, TCG_REG_L0, base);
base = TCG_REG_L0;
}
- if (offset != GUEST_BASE) {
- tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_L1, GUEST_BASE);
+ if (offset != guest_base) {
+ tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_L1, guest_base);
index = TCG_REG_L1;
offset = 0;
}
@@ -1713,12 +1713,12 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is64)
s->code_ptr, label_ptr);
#else
{
- int32_t offset = GUEST_BASE;
+ int32_t offset = guest_base;
TCGReg base = addrlo;
int seg = 0;
/* See comment in tcg_out_qemu_ld re zero-extension of addrlo. */
- if (GUEST_BASE == 0 || guest_base_flags) {
+ if (guest_base == 0 || guest_base_flags) {
seg = guest_base_flags;
offset = 0;
if (TCG_TARGET_REG_BITS > TARGET_LONG_BITS) {
@@ -1727,12 +1727,12 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is64)
} else if (TCG_TARGET_REG_BITS == 64) {
/* ??? Note that we can't use the same SIB addressing scheme
as for loads, since we require L0 free for bswap. */
- if (offset != GUEST_BASE) {
+ if (offset != guest_base) {
if (TARGET_LONG_BITS == 32) {
tcg_out_ext32u(s, TCG_REG_L0, base);
base = TCG_REG_L0;
}
- tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_L1, GUEST_BASE);
+ tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_L1, guest_base);
tgen_arithr(s, ARITH_ADD + P_REXW, TCG_REG_L1, base);
base = TCG_REG_L1;
offset = 0;
@@ -2306,8 +2306,8 @@ static void tcg_target_qemu_prologue(TCGContext *s)
tcg_out_opc(s, OPC_RET, 0, 0, 0);
#if !defined(CONFIG_SOFTMMU)
- /* Try to set up a segment register to point to GUEST_BASE. */
- if (GUEST_BASE) {
+ /* Try to set up a segment register to point to guest_base. */
+ if (guest_base) {
setup_guest_base_seg();
}
#endif
diff --git a/tcg/ia64/tcg-target.c b/tcg/ia64/tcg-target.c
index f61f95d..8f0aa23 100644
--- a/tcg/ia64/tcg-target.c
+++ b/tcg/ia64/tcg-target.c
@@ -43,9 +43,6 @@ static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
#ifndef CONFIG_SOFTMMU
#define TCG_GUEST_BASE_REG TCG_REG_R55
#endif
-#ifndef GUEST_BASE
-#define GUEST_BASE 0
-#endif
/* Branch registers */
enum {
@@ -1763,7 +1760,7 @@ static inline void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args)
bswap = opc & MO_BSWAP;
#if TARGET_LONG_BITS == 32
- if (GUEST_BASE != 0) {
+ if (guest_base != 0) {
tcg_out_bundle(s, mII,
INSN_NOP_M,
tcg_opc_i29(TCG_REG_P0, OPC_ZXT4_I29,
@@ -1827,7 +1824,7 @@ static inline void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args)
}
}
#else
- if (GUEST_BASE != 0) {
+ if (guest_base != 0) {
tcg_out_bundle(s, MmI,
tcg_opc_a1 (TCG_REG_P0, OPC_ADD_A1, TCG_REG_R2,
TCG_GUEST_BASE_REG, addr_reg),
@@ -1887,7 +1884,7 @@ static inline void tcg_out_qemu_st(TCGContext *s, const TCGArg *args)
bswap = opc & MO_BSWAP;
#if TARGET_LONG_BITS == 32
- if (GUEST_BASE != 0) {
+ if (guest_base != 0) {
tcg_out_bundle(s, mII,
INSN_NOP_M,
tcg_opc_i29(TCG_REG_P0, OPC_ZXT4_I29,
@@ -1933,7 +1930,7 @@ static inline void tcg_out_qemu_st(TCGContext *s, const TCGArg *args)
INSN_NOP_M,
INSN_NOP_I);
#else
- if (GUEST_BASE != 0) {
+ if (guest_base != 0) {
add_guest_base = tcg_opc_a1 (TCG_REG_P0, OPC_ADD_A1, TCG_REG_R2,
TCG_GUEST_BASE_REG, addr_reg);
addr_reg = TCG_REG_R2;
@@ -1942,7 +1939,7 @@ static inline void tcg_out_qemu_st(TCGContext *s, const TCGArg *args)
}
if (!bswap) {
- tcg_out_bundle(s, (GUEST_BASE ? MmI : mmI),
+ tcg_out_bundle(s, (guest_base ? MmI : mmI),
add_guest_base,
tcg_opc_m4 (TCG_REG_P0, opc_st_m4[s_bits],
data_reg, addr_reg),
@@ -2347,14 +2344,14 @@ static void tcg_target_qemu_prologue(TCGContext *s)
tcg_opc_i21(TCG_REG_P0, OPC_MOV_I21,
TCG_REG_B6, TCG_REG_R33, 0));
- /* ??? If GUEST_BASE < 0x200000, we could load the register via
+ /* ??? If guest_base < 0x200000, we could load the register via
an ADDL in the M slot of the next bundle. */
- if (GUEST_BASE != 0) {
+ if (guest_base != 0) {
tcg_out_bundle(s, mlx,
INSN_NOP_M,
- tcg_opc_l2 (GUEST_BASE),
+ tcg_opc_l2(guest_base),
tcg_opc_x2 (TCG_REG_P0, OPC_MOVL_X2,
- TCG_GUEST_BASE_REG, GUEST_BASE));
+ TCG_GUEST_BASE_REG, guest_base));
tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG);
}
diff --git a/tcg/mips/tcg-target.c b/tcg/mips/tcg-target.c
index e97980d..c0ce520 100644
--- a/tcg/mips/tcg-target.c
+++ b/tcg/mips/tcg-target.c
@@ -1180,12 +1180,12 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, bool is_64)
add_qemu_ldst_label(s, 1, oi, data_regl, data_regh, addr_regl, addr_regh,
s->code_ptr, label_ptr);
#else
- if (GUEST_BASE == 0 && data_regl != addr_regl) {
+ if (guest_base == 0 && data_regl != addr_regl) {
base = addr_regl;
- } else if (GUEST_BASE == (int16_t)GUEST_BASE) {
- tcg_out_opc_imm(s, OPC_ADDIU, base, addr_regl, GUEST_BASE);
+ } else if (guest_base == (int16_t)guest_base) {
+ tcg_out_opc_imm(s, OPC_ADDIU, base, addr_regl, guest_base);
} else {
- tcg_out_movi(s, TCG_TYPE_PTR, base, GUEST_BASE);
+ tcg_out_movi(s, TCG_TYPE_PTR, base, guest_base);
tcg_out_opc_reg(s, OPC_ADDU, base, base, addr_regl);
}
tcg_out_qemu_ld_direct(s, data_regl, data_regh, base, opc);
@@ -1314,14 +1314,14 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is_64)
add_qemu_ldst_label(s, 0, oi, data_regl, data_regh, addr_regl, addr_regh,
s->code_ptr, label_ptr);
#else
- if (GUEST_BASE == 0) {
+ if (guest_base == 0) {
base = addr_regl;
} else {
base = TCG_REG_A0;
- if (GUEST_BASE == (int16_t)GUEST_BASE) {
- tcg_out_opc_imm(s, OPC_ADDIU, base, addr_regl, GUEST_BASE);
+ if (guest_base == (int16_t)guest_base) {
+ tcg_out_opc_imm(s, OPC_ADDIU, base, addr_regl, guest_base);
} else {
- tcg_out_movi(s, TCG_TYPE_PTR, base, GUEST_BASE);
+ tcg_out_movi(s, TCG_TYPE_PTR, base, guest_base);
tcg_out_opc_reg(s, OPC_ADDU, base, base, addr_regl);
}
}
diff --git a/tcg/ppc/tcg-target.c b/tcg/ppc/tcg-target.c
index 4b5af76..df9759c 100644
--- a/tcg/ppc/tcg-target.c
+++ b/tcg/ppc/tcg-target.c
@@ -80,10 +80,6 @@
static tcg_insn_unit *tb_ret_addr;
-#ifndef GUEST_BASE
-#define GUEST_BASE 0
-#endif
-
#include "elf.h"
static bool have_isa_2_06;
#define HAVE_ISA_2_06 have_isa_2_06
@@ -1598,7 +1594,7 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, bool is_64)
rbase = TCG_REG_R3;
#else /* !CONFIG_SOFTMMU */
- rbase = GUEST_BASE ? TCG_GUEST_BASE_REG : 0;
+ rbase = guest_base ? TCG_GUEST_BASE_REG : 0;
if (TCG_TARGET_REG_BITS > TARGET_LONG_BITS) {
tcg_out_ext32u(s, TCG_REG_TMP1, addrlo);
addrlo = TCG_REG_TMP1;
@@ -1673,7 +1669,7 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is_64)
rbase = TCG_REG_R3;
#else /* !CONFIG_SOFTMMU */
- rbase = GUEST_BASE ? TCG_GUEST_BASE_REG : 0;
+ rbase = guest_base ? TCG_GUEST_BASE_REG : 0;
if (TCG_TARGET_REG_BITS > TARGET_LONG_BITS) {
tcg_out_ext32u(s, TCG_REG_TMP1, addrlo);
addrlo = TCG_REG_TMP1;
@@ -1778,8 +1774,8 @@ static void tcg_target_qemu_prologue(TCGContext *s)
tcg_out_st(s, TCG_TYPE_PTR, TCG_REG_R0, TCG_REG_R1, FRAME_SIZE+LR_OFFSET);
#ifndef CONFIG_SOFTMMU
- if (GUEST_BASE) {
- tcg_out_movi(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, GUEST_BASE);
+ if (guest_base) {
+ tcg_out_movi(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, guest_base);
tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG);
}
#endif
diff --git a/tcg/s390/tcg-target.c b/tcg/s390/tcg-target.c
index 5bf3ae2..cf7cda9 100644
--- a/tcg/s390/tcg-target.c
+++ b/tcg/s390/tcg-target.c
@@ -57,11 +57,6 @@
#define TCG_GUEST_BASE_REG TCG_REG_R0
#endif
-#ifndef GUEST_BASE
-#define GUEST_BASE 0
-#endif
-
-
/* All of the following instructions are prefixed with their instruction
format, and are defined as 8- or 16-bit quantities, even when the two
halves of the 16-bit quantity may appear 32 bits apart in the insn.
@@ -1622,9 +1617,9 @@ static void tcg_prepare_user_ldst(TCGContext *s, TCGReg *addr_reg,
tgen_ext32u(s, TCG_TMP0, *addr_reg);
*addr_reg = TCG_TMP0;
}
- if (GUEST_BASE < 0x80000) {
+ if (guest_base < 0x80000) {
*index_reg = TCG_REG_NONE;
- *disp = GUEST_BASE;
+ *disp = guest_base;
} else {
*index_reg = TCG_GUEST_BASE_REG;
*disp = 0;
@@ -2328,8 +2323,8 @@ static void tcg_target_qemu_prologue(TCGContext *s)
TCG_STATIC_CALL_ARGS_SIZE + TCG_TARGET_CALL_STACK_OFFSET,
CPU_TEMP_BUF_NLONGS * sizeof(long));
- if (GUEST_BASE >= 0x80000) {
- tcg_out_movi(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, GUEST_BASE);
+ if (guest_base >= 0x80000) {
+ tcg_out_movi(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, guest_base);
tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG);
}
diff --git a/tcg/sparc/tcg-target.c b/tcg/sparc/tcg-target.c
index 8bb733a..875765d 100644
--- a/tcg/sparc/tcg-target.c
+++ b/tcg/sparc/tcg-target.c
@@ -954,8 +954,8 @@ static void tcg_target_qemu_prologue(TCGContext *s)
INSN_IMM13(-frame_size));
#ifndef CONFIG_SOFTMMU
- if (GUEST_BASE != 0) {
- tcg_out_movi(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, GUEST_BASE);
+ if (guest_base != 0) {
+ tcg_out_movi(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, guest_base);
tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG);
}
#endif
@@ -1144,7 +1144,7 @@ static void tcg_out_qemu_ld(TCGContext *s, TCGReg data, TCGReg addr,
addr = TCG_REG_T1;
}
tcg_out_ldst_rr(s, data, addr,
- (GUEST_BASE ? TCG_GUEST_BASE_REG : TCG_REG_G0),
+ (guest_base ? TCG_GUEST_BASE_REG : TCG_REG_G0),
qemu_ld_opc[memop & (MO_BSWAP | MO_SSIZE)]);
#endif /* CONFIG_SOFTMMU */
}
@@ -1199,7 +1199,7 @@ static void tcg_out_qemu_st(TCGContext *s, TCGReg data, TCGReg addr,
addr = TCG_REG_T1;
}
tcg_out_ldst_rr(s, data, addr,
- (GUEST_BASE ? TCG_GUEST_BASE_REG : TCG_REG_G0),
+ (guest_base ? TCG_GUEST_BASE_REG : TCG_REG_G0),
qemu_st_opc[memop & (MO_BSWAP | MO_SIZE)]);
#endif /* CONFIG_SOFTMMU */
}
--
2.4.3
^ permalink raw reply related [flat|nested] 7+ messages in thread
* Re: [Qemu-devel] [PATCH 0/2] linux-user: remove guest-base configure parameter
2015-08-23 23:42 [Qemu-devel] [PATCH 0/2] linux-user: remove guest-base configure parameter Laurent Vivier
2015-08-23 23:42 ` [Qemu-devel] [PATCH 1/2] linux-user: remove --enable-guest-base/--disable-guest-base Laurent Vivier
2015-08-23 23:42 ` [Qemu-devel] [PATCH 2/2] linux-user: remove useless macros GUEST_BASE and RESERVED_VA Laurent Vivier
@ 2015-08-24 18:16 ` Richard Henderson
2 siblings, 0 replies; 7+ messages in thread
From: Richard Henderson @ 2015-08-24 18:16 UTC (permalink / raw)
To: Laurent Vivier, Riku Voipio, Claudio Fontana, Andrzej Zaborowski,
Aurelien Jarno, Vassili Karpov (malc), Alexander Graf, Blue Swirl
Cc: qemu-devel
On 08/23/2015 04:42 PM, Laurent Vivier wrote:
> These two patches remove the parameters
> --enable-guest-base/--disable-guest-base from the configure options.
>
> So, in linux-user mode, guest base is always enabled, and can
> be disabled by setting the guest base to 0.
>
> I've checked some softmmu targets with BIOS/firmware, and booted a raspbian
> distro in a container in linux-user mode, BUT I recommend each machine
> maintainers should check their machines always work well.
>
> Laurent Vivier (2):
> linux-user: remove --enable-guest-base/--disable-guest-base
> linux-user: remove useless macros GUEST_BASE and RESERVED_VA
Since this is really TCG related, and not really linux-user,
I've taken this into the tcg-next tree.
Thanks!
r~
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2015-08-24 18:16 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2015-08-23 23:42 [Qemu-devel] [PATCH 0/2] linux-user: remove guest-base configure parameter Laurent Vivier
2015-08-23 23:42 ` [Qemu-devel] [PATCH 1/2] linux-user: remove --enable-guest-base/--disable-guest-base Laurent Vivier
2015-08-24 4:59 ` Alexander Graf
2015-08-23 23:42 ` [Qemu-devel] [PATCH 2/2] linux-user: remove useless macros GUEST_BASE and RESERVED_VA Laurent Vivier
2015-08-24 5:00 ` Alexander Graf
2015-08-24 12:53 ` [Qemu-devel] [PATCH v2 " Laurent Vivier
2015-08-24 18:16 ` [Qemu-devel] [PATCH 0/2] linux-user: remove guest-base configure parameter Richard Henderson
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