[Qemu-devel] [PULL 0/9] Ide patches

[Qemu-devel] [PULL 0/9] Ide patches

[John Snow]

The following changes since commit 6bbcb76301a72dc80c8d29af13d40bb9a759c9c6:

  MAINTAINERS: Remove obsolete stable branches (2016-11-10 15:29:59 +0000)

are available in the git repository at:

  https://github.com/jnsnow/qemu.git tags/ide-pull-request

for you to fetch changes up to 317a342cc0e0694549e2bc4e500085ca98a15ba0:

  ahci-test: add QMP tray test for ATAPI (2016-11-11 10:12:21 -0500)

----------------------------------------------------------------

Two bugfixes, and the tests to cover their regressions.
Intended for rc0, thanks.

----------------------------------------------------------------

John Snow (9):
  atapi: classify read_cd as conditionally returning data
  ahci-test: Create smaller test ISO images
  ahci-test: test atapi read_cd with bcl, nb_sectors = 0
  block-backend: Always notify on blk_eject
  libqtest: add qmp_eventwait_ref
  libqos/ahci: Support expected errors
  libqos/ahci: Add ATAPI tray macros
  libqos/ahci: Add get_sense and test_ready
  ahci-test: add QMP tray test for ATAPI

 block/block-backend.c |  13 ++---
 hw/ide/atapi.c        |  51 +++++++++++++++----
 tests/ahci-test.c     | 137 +++++++++++++++++++++++++++++++++++++++++++++++---
 tests/libqos/ahci.c   | 123 ++++++++++++++++++++++++++++++++++++++++----
 tests/libqos/ahci.h   |  41 +++++++++++----
 tests/libqtest.c      |  13 +++--
 tests/libqtest.h      |  22 ++++++++
 7 files changed, 352 insertions(+), 48 deletions(-)

-- 
2.7.4

[Qemu-devel] [PULL 1/9] atapi: classify read_cd as conditionally returning data

[John Snow]

For the purposes of byte_count_limit verification, add a new flag that
identifies read_cd as sometimes returning data, then check the BCL in
its command handler after we know that it will indeed return data.

Reported-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-id: 1477970211-25754-2-git-send-email-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
---
 hw/ide/atapi.c | 51 ++++++++++++++++++++++++++++++++++++++++-----------
 1 file changed, 40 insertions(+), 11 deletions(-)

diff --git a/hw/ide/atapi.c b/hw/ide/atapi.c
index 6189675..fc1d19c 100644
--- a/hw/ide/atapi.c
+++ b/hw/ide/atapi.c
@@ -637,6 +637,23 @@ static unsigned int event_status_media(IDEState *s,
     return 8; /* We wrote to 4 extra bytes from the header */
 }
 
+/*
+ * Before transferring data or otherwise signalling acceptance of a command
+ * marked CONDDATA, we must check the validity of the byte_count_limit.
+ */
+static bool validate_bcl(IDEState *s)
+{
+    /* TODO: Check IDENTIFY data word 125 for defacult BCL (currently 0) */
+    if (s->atapi_dma || atapi_byte_count_limit(s)) {
+        return true;
+    }
+
+    /* TODO: Move abort back into core.c and introduce proper error flow between
+     *       ATAPI layer and IDE core layer */
+    ide_abort_command(s);
+    return false;
+}
+
 static void cmd_get_event_status_notification(IDEState *s,
                                               uint8_t *buf)
 {
@@ -1028,12 +1045,19 @@ static void cmd_read_cd(IDEState *s, uint8_t* buf)
         return;
     }
 
-    transfer_request = buf[9];
-    switch(transfer_request & 0xf8) {
-    case 0x00:
+    transfer_request = buf[9] & 0xf8;
+    if (transfer_request == 0x00) {
         /* nothing */
         ide_atapi_cmd_ok(s);
-        break;
+        return;
+    }
+
+    /* Check validity of BCL before transferring data */
+    if (!validate_bcl(s)) {
+        return;
+    }
+
+    switch (transfer_request) {
     case 0x10:
         /* normal read */
         ide_atapi_cmd_read(s, lba, nb_sectors, 2048);
@@ -1266,6 +1290,14 @@ enum {
      * See ATA8-ACS3 "7.21.5 Byte Count Limit"
      */
     NONDATA = 0x04,
+
+    /*
+     * CONDDATA implies a command that transfers data only conditionally based
+     * on the presence of suboptions. It should be exempt from the BCL check at
+     * command validation time, but it needs to be checked at the command
+     * handler level instead.
+     */
+    CONDDATA = 0x08,
 };
 
 static const struct AtapiCmd {
@@ -1289,7 +1321,7 @@ static const struct AtapiCmd {
     [ 0xad ] = { cmd_read_dvd_structure,            CHECK_READY },
     [ 0xbb ] = { cmd_set_speed,                     NONDATA },
     [ 0xbd ] = { cmd_mechanism_status,              0 },
-    [ 0xbe ] = { cmd_read_cd,                       CHECK_READY },
+    [ 0xbe ] = { cmd_read_cd,                       CHECK_READY | CONDDATA },
     /* [1] handler detects and reports not ready condition itself */
 };
 
@@ -1348,15 +1380,12 @@ void ide_atapi_cmd(IDEState *s)
         return;
     }
 
-    /* Nondata commands permit the byte_count_limit to be 0.
+    /* Commands that don't transfer DATA permit the byte_count_limit to be 0.
      * If this is a data-transferring PIO command and BCL is 0,
      * we abort at the /ATA/ level, not the ATAPI level.
      * See ATA8 ACS3 section 7.17.6.49 and 7.21.5 */
-    if (cmd->handler && !(cmd->flags & NONDATA)) {
-        /* TODO: Check IDENTIFY data word 125 for default BCL (currently 0) */
-        if (!(atapi_byte_count_limit(s) || s->atapi_dma)) {
-            /* TODO: Move abort back into core.c and make static inline again */
-            ide_abort_command(s);
+    if (cmd->handler && !(cmd->flags & (NONDATA | CONDDATA))) {
+        if (!validate_bcl(s)) {
             return;
         }
     }
-- 
2.7.4

[Qemu-devel] [PULL 2/9] ahci-test: Create smaller test ISO images

[John Snow]

These can simply be the size of the number of sectors we're reading,
plus one for a buffer. We don't need them to be any larger.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-id: 1477970211-25754-3-git-send-email-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
---
 tests/ahci-test.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tests/ahci-test.c b/tests/ahci-test.c
index 70bcafa..a271cad 100644
--- a/tests/ahci-test.c
+++ b/tests/ahci-test.c
@@ -1494,9 +1494,10 @@ static void ahci_test_cdrom(int nsectors, bool dma)
         .atapi_dma = dma,
         .post_cb = ahci_cb_cmp_buff,
     };
+    uint64_t iso_size = ATAPI_SECTOR_SIZE * (nsectors + 1);
 
     /* Prepare ISO and fill 'tx' buffer */
-    fd = prepare_iso(1024 * 1024, &tx, &iso);
+    fd = prepare_iso(iso_size, &tx, &iso);
     opts.opaque = tx;
 
     /* Standard startup wonkery, but use ide-cd and our special iso file */
-- 
2.7.4

[Qemu-devel] [PULL 3/9] ahci-test: test atapi read_cd with bcl, nb_sectors = 0

[John Snow]

Commit 9ef2e93f introduced the concept of tagging ATAPI commands as
NONDATA, but this introduced a regression for certain commands better
described as CONDDATA. read_cd is such a command that both requires
a non-zero BCL if a transfer size is set, but is perfectly content to
accept a zero BCL if the transfer size is 0.

This test adds a regression test for the case where BCL and nb_sectors
are both 0.

Flesh out the CDROM tests by:

(1) Allowing the test to specify a BCL
(2) Allowing the buffer comparison test to compare a 0-size buffer
(3) Fix the BCL specification in libqos (It is LE, not BE)
(4) Add a nice human-readable message for future SCSI command additions

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-id: 1477970211-25754-4-git-send-email-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
---
 tests/ahci-test.c   | 36 +++++++++++++++++++++++++++++-------
 tests/libqos/ahci.c | 27 ++++++++++++++++++++-------
 tests/libqos/ahci.h | 17 ++++++++++-------
 3 files changed, 59 insertions(+), 21 deletions(-)

diff --git a/tests/ahci-test.c b/tests/ahci-test.c
index a271cad..0b1b6f7 100644
--- a/tests/ahci-test.c
+++ b/tests/ahci-test.c
@@ -1473,8 +1473,13 @@ static int ahci_cb_cmp_buff(AHCIQState *ahci, AHCICommand *cmd,
                             const AHCIOpts *opts)
 {
     unsigned char *tx = opts->opaque;
-    unsigned char *rx = g_malloc0(opts->size);
+    unsigned char *rx;
 
+    if (!opts->size) {
+        return 0;
+    }
+
+    rx = g_malloc0(opts->size);
     bufread(opts->buffer, rx, opts->size);
     g_assert_cmphex(memcmp(tx, rx, opts->size), ==, 0);
     g_free(rx);
@@ -1482,7 +1487,8 @@ static int ahci_cb_cmp_buff(AHCIQState *ahci, AHCICommand *cmd,
     return 0;
 }
 
-static void ahci_test_cdrom(int nsectors, bool dma)
+static void ahci_test_cdrom(int nsectors, bool dma, uint8_t cmd,
+                            bool override_bcl, uint16_t bcl)
 {
     AHCIQState *ahci;
     unsigned char *tx;
@@ -1493,6 +1499,8 @@ static void ahci_test_cdrom(int nsectors, bool dma)
         .atapi = true,
         .atapi_dma = dma,
         .post_cb = ahci_cb_cmp_buff,
+        .set_bcl = override_bcl,
+        .bcl = bcl,
     };
     uint64_t iso_size = ATAPI_SECTOR_SIZE * (nsectors + 1);
 
@@ -1506,7 +1514,7 @@ static void ahci_test_cdrom(int nsectors, bool dma)
                                 "-device ide-cd,drive=drive0 ", iso);
 
     /* Build & Send AHCI command */
-    ahci_exec(ahci, ahci_port_select(ahci), CMD_ATAPI_READ_10, &opts);
+    ahci_exec(ahci, ahci_port_select(ahci), cmd, &opts);
 
     /* Cleanup */
     g_free(tx);
@@ -1514,24 +1522,36 @@ static void ahci_test_cdrom(int nsectors, bool dma)
     remove_iso(fd, iso);
 }
 
+static void ahci_test_cdrom_read10(int nsectors, bool dma)
+{
+    ahci_test_cdrom(nsectors, dma, CMD_ATAPI_READ_10, false, 0);
+}
+
 static void test_cdrom_dma(void)
 {
-    ahci_test_cdrom(1, true);
+    ahci_test_cdrom_read10(1, true);
 }
 
 static void test_cdrom_dma_multi(void)
 {
-    ahci_test_cdrom(3, true);
+    ahci_test_cdrom_read10(3, true);
 }
 
 static void test_cdrom_pio(void)
 {
-    ahci_test_cdrom(1, false);
+    ahci_test_cdrom_read10(1, false);
 }
 
 static void test_cdrom_pio_multi(void)
 {
-    ahci_test_cdrom(3, false);
+    ahci_test_cdrom_read10(3, false);
+}
+
+/* Regression test: Test that a READ_CD command with a BCL of 0 but a size of 0
+ * completes as a NOP instead of erroring out. */
+static void test_atapi_bcl(void)
+{
+    ahci_test_cdrom(0, false, CMD_ATAPI_READ_CD, true, 0);
 }
 
 /******************************************************************************/
@@ -1823,6 +1843,8 @@ int main(int argc, char **argv)
     qtest_add_func("/ahci/cdrom/pio/single", test_cdrom_pio);
     qtest_add_func("/ahci/cdrom/pio/multi", test_cdrom_pio_multi);
 
+    qtest_add_func("/ahci/cdrom/pio/bcl", test_atapi_bcl);
+
     ret = g_test_run();
 
     /* Cleanup */
diff --git a/tests/libqos/ahci.c b/tests/libqos/ahci.c
index 5180d65..15fa888 100644
--- a/tests/libqos/ahci.c
+++ b/tests/libqos/ahci.c
@@ -633,7 +633,8 @@ void ahci_exec(AHCIQState *ahci, uint8_t port,
 
     /* Command creation */
     if (opts->atapi) {
-        cmd = ahci_atapi_command_create(op);
+        uint16_t bcl = opts->set_bcl ? opts->bcl : ATAPI_SECTOR_SIZE;
+        cmd = ahci_atapi_command_create(op, bcl);
         if (opts->atapi_dma) {
             ahci_command_enable_atapi_dma(cmd);
         }
@@ -864,16 +865,12 @@ AHCICommand *ahci_command_create(uint8_t command_name)
     return cmd;
 }
 
-AHCICommand *ahci_atapi_command_create(uint8_t scsi_cmd)
+AHCICommand *ahci_atapi_command_create(uint8_t scsi_cmd, uint16_t bcl)
 {
     AHCICommand *cmd = ahci_command_create(CMD_PACKET);
     cmd->atapi_cmd = g_malloc0(16);
     cmd->atapi_cmd[0] = scsi_cmd;
-    /* ATAPI needs a PIO transfer chunk size set inside of the LBA registers.
-     * The block/sector size is a natural default. */
-    cmd->fis.lba_lo[1] = ATAPI_SECTOR_SIZE >> 8 & 0xFF;
-    cmd->fis.lba_lo[2] = ATAPI_SECTOR_SIZE & 0xFF;
-
+    stw_le_p(&cmd->fis.lba_lo[1], bcl);
     return cmd;
 }
 
@@ -901,12 +898,16 @@ static void ahci_atapi_command_set_offset(AHCICommand *cmd, uint64_t lba)
 
     switch (cbd[0]) {
     case CMD_ATAPI_READ_10:
+    case CMD_ATAPI_READ_CD:
         g_assert_cmpuint(lba, <=, UINT32_MAX);
         stl_be_p(&cbd[2], lba);
         break;
     default:
         /* SCSI doesn't have uniform packet formats,
          * so you have to add support for it manually. Sorry! */
+        fprintf(stderr, "The Libqos AHCI driver does not support the set_offset "
+                "operation for ATAPI command 0x%02x, please add support.\n",
+                cbd[0]);
         g_assert_not_reached();
     }
 }
@@ -951,6 +952,7 @@ static void ahci_atapi_set_size(AHCICommand *cmd, uint64_t xbytes)
 {
     unsigned char *cbd = cmd->atapi_cmd;
     uint64_t nsectors = xbytes / 2048;
+    uint32_t tmp;
     g_assert(cbd);
 
     switch (cbd[0]) {
@@ -958,9 +960,20 @@ static void ahci_atapi_set_size(AHCICommand *cmd, uint64_t xbytes)
         g_assert_cmpuint(nsectors, <=, UINT16_MAX);
         stw_be_p(&cbd[7], nsectors);
         break;
+    case CMD_ATAPI_READ_CD:
+        /* 24bit BE store */
+        g_assert_cmpuint(nsectors, <, 1ULL << 24);
+        tmp = nsectors;
+        cbd[6] = (tmp & 0xFF0000) >> 16;
+        cbd[7] = (tmp & 0xFF00) >> 8;
+        cbd[8] = (tmp & 0xFF);
+        break;
     default:
         /* SCSI doesn't have uniform packet formats,
          * so you have to add support for it manually. Sorry! */
+        fprintf(stderr, "The Libqos AHCI driver does not support the set_size "
+                "operation for ATAPI command 0x%02x, please add support.\n",
+                cbd[0]);
         g_assert_not_reached();
     }
 }
diff --git a/tests/libqos/ahci.h b/tests/libqos/ahci.h
index caaafe3..f144fab 100644
--- a/tests/libqos/ahci.h
+++ b/tests/libqos/ahci.h
@@ -288,6 +288,7 @@ enum {
 /* ATAPI Commands */
 enum {
     CMD_ATAPI_READ_10 = 0x28,
+    CMD_ATAPI_READ_CD = 0xbe,
 };
 
 /* AHCI Command Header Flags & Masks*/
@@ -462,12 +463,14 @@ typedef struct AHCICommand AHCICommand;
 
 /* Options to ahci_exec */
 typedef struct AHCIOpts {
-    size_t size;
-    unsigned prd_size;
-    uint64_t lba;
-    uint64_t buffer;
-    bool atapi;
-    bool atapi_dma;
+    size_t size;        /* Size of transfer */
+    unsigned prd_size;  /* Size per-each PRD */
+    bool set_bcl;       /* Override the default BCL of ATAPI_SECTOR_SIZE */
+    unsigned bcl;       /* Byte Count Limit, for ATAPI PIO */
+    uint64_t lba;       /* Starting LBA offset */
+    uint64_t buffer;    /* Pointer to source or destination guest buffer */
+    bool atapi;         /* ATAPI command? */
+    bool atapi_dma;     /* Use DMA for ATAPI? */
     bool error;
     int (*pre_cb)(AHCIQState*, AHCICommand*, const struct AHCIOpts *);
     int (*mid_cb)(AHCIQState*, AHCICommand*, const struct AHCIOpts *);
@@ -599,7 +602,7 @@ void ahci_exec(AHCIQState *ahci, uint8_t port,
 
 /* Command: Fine-grained lifecycle */
 AHCICommand *ahci_command_create(uint8_t command_name);
-AHCICommand *ahci_atapi_command_create(uint8_t scsi_cmd);
+AHCICommand *ahci_atapi_command_create(uint8_t scsi_cmd, uint16_t bcl);
 void ahci_command_commit(AHCIQState *ahci, AHCICommand *cmd, uint8_t port);
 void ahci_command_issue(AHCIQState *ahci, AHCICommand *cmd);
 void ahci_command_issue_async(AHCIQState *ahci, AHCICommand *cmd);
-- 
2.7.4

[Qemu-devel] [PULL 4/9] block-backend: Always notify on blk_eject

[John Snow]

blk_eject is only used by scsi-disk and atapi, and in both cases we
only attempt to invoke blk_eject if we have a bona-fide change in
tray state.

The "issue" here is that the tray state does not generate a QMP event
unless there is a medium/BDS attached to the device, so if libvirt et al
are waiting for a tray event to occur from an empty-but-closed drive,
software opening that drive will not emit an event and libvirt will
wait forever.

Change this by modifying blk_eject to always emit an event, instead of
conditionally on a "real" backend eject.

Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1373264

Reported-by: Peter Krempa <pkrempa@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1478553214-497-2-git-send-email-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
---
 block/block-backend.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/block/block-backend.c b/block/block-backend.c
index 27a7f6f..efbf398 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -1393,13 +1393,14 @@ void blk_eject(BlockBackend *blk, bool eject_flag)
 
     if (bs) {
         bdrv_eject(bs, eject_flag);
-
-        id = blk_get_attached_dev_id(blk);
-        qapi_event_send_device_tray_moved(blk_name(blk), id,
-                                          eject_flag, &error_abort);
-        g_free(id);
-
     }
+
+    /* Whether or not we ejected on the backend,
+     * the frontend experienced a tray event. */
+    id = blk_get_attached_dev_id(blk);
+    qapi_event_send_device_tray_moved(blk_name(blk), id,
+                                      eject_flag, &error_abort);
+    g_free(id);
 }
 
 int blk_get_flags(BlockBackend *blk)
-- 
2.7.4

[Qemu-devel] [PULL 5/9] libqtest: add qmp_eventwait_ref

[John Snow]

Wait for an event, but return a copy so we can investigate parameters.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1478553214-497-3-git-send-email-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
---
 tests/libqtest.c | 13 ++++++++++---
 tests/libqtest.h | 22 ++++++++++++++++++++++
 2 files changed, 32 insertions(+), 3 deletions(-)

diff --git a/tests/libqtest.c b/tests/libqtest.c
index d4e6bff..6f69752 100644
--- a/tests/libqtest.c
+++ b/tests/libqtest.c
@@ -533,7 +533,7 @@ void qtest_qmp_discard_response(QTestState *s, const char *fmt, ...)
     QDECREF(response);
 }
 
-void qtest_qmp_eventwait(QTestState *s, const char *event)
+QDict *qtest_qmp_eventwait_ref(QTestState *s, const char *event)
 {
     QDict *response;
 
@@ -541,13 +541,20 @@ void qtest_qmp_eventwait(QTestState *s, const char *event)
         response = qtest_qmp_receive(s);
         if ((qdict_haskey(response, "event")) &&
             (strcmp(qdict_get_str(response, "event"), event) == 0)) {
-            QDECREF(response);
-            break;
+            return response;
         }
         QDECREF(response);
     }
 }
 
+void qtest_qmp_eventwait(QTestState *s, const char *event)
+{
+    QDict *response;
+
+    response = qtest_qmp_eventwait_ref(s, event);
+    QDECREF(response);
+}
+
 char *qtest_hmpv(QTestState *s, const char *fmt, va_list ap)
 {
     char *cmd;
diff --git a/tests/libqtest.h b/tests/libqtest.h
index 0224f06..90f182e 100644
--- a/tests/libqtest.h
+++ b/tests/libqtest.h
@@ -114,6 +114,16 @@ QDict *qtest_qmp_receive(QTestState *s);
 void qtest_qmp_eventwait(QTestState *s, const char *event);
 
 /**
+ * qtest_qmp_eventwait_ref:
+ * @s: #QTestState instance to operate on.
+ * @s: #event event to wait for.
+ *
+ * Continuosly polls for QMP responses until it receives the desired event.
+ * Returns a copy of the event for further investigation.
+ */
+QDict *qtest_qmp_eventwait_ref(QTestState *s, const char *event);
+
+/**
  * qtest_hmpv:
  * @s: #QTestState instance to operate on.
  * @fmt...: HMP command to send to QEMU
@@ -559,6 +569,18 @@ static inline void qmp_eventwait(const char *event)
 }
 
 /**
+ * qmp_eventwait_ref:
+ * @s: #event event to wait for.
+ *
+ * Continuosly polls for QMP responses until it receives the desired event.
+ * Returns a copy of the event for further investigation.
+ */
+static inline QDict *qmp_eventwait_ref(const char *event)
+{
+    return qtest_qmp_eventwait_ref(global_qtest, event);
+}
+
+/**
  * hmp:
  * @fmt...: HMP command to send to QEMU
  *
-- 
2.7.4

[Qemu-devel] [PULL 6/9] libqos/ahci: Support expected errors

[John Snow]

Sometimes we know we'll get back an error, so let's have the
test framework understand that.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1478553214-497-4-git-send-email-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
---
 tests/libqos/ahci.c | 16 ++++++++++++----
 tests/libqos/ahci.h |  3 ++-
 2 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/tests/libqos/ahci.c b/tests/libqos/ahci.c
index 15fa888..77f9bed 100644
--- a/tests/libqos/ahci.c
+++ b/tests/libqos/ahci.c
@@ -86,6 +86,7 @@ struct AHCICommand {
     uint8_t name;
     uint8_t port;
     uint8_t slot;
+    uint8_t errors;
     uint32_t interrupts;
     uint64_t xbytes;
     uint32_t prd_size;
@@ -402,12 +403,14 @@ void ahci_port_clear(AHCIQState *ahci, uint8_t port)
 /**
  * Check a port for errors.
  */
-void ahci_port_check_error(AHCIQState *ahci, uint8_t port)
+void ahci_port_check_error(AHCIQState *ahci, uint8_t port,
+                           uint32_t imask, uint8_t emask)
 {
     uint32_t reg;
 
     /* The upper 9 bits of the IS register all indicate errors. */
     reg = ahci_px_rreg(ahci, port, AHCI_PX_IS);
+    reg &= ~imask;
     reg >>= 23;
     g_assert_cmphex(reg, ==, 0);
 
@@ -417,8 +420,13 @@ void ahci_port_check_error(AHCIQState *ahci, uint8_t port)
 
     /* The TFD also has two error sections. */
     reg = ahci_px_rreg(ahci, port, AHCI_PX_TFD);
-    ASSERT_BIT_CLEAR(reg, AHCI_PX_TFD_STS_ERR);
-    ASSERT_BIT_CLEAR(reg, AHCI_PX_TFD_ERR);
+    if (!emask) {
+        ASSERT_BIT_CLEAR(reg, AHCI_PX_TFD_STS_ERR);
+    } else {
+        ASSERT_BIT_SET(reg, AHCI_PX_TFD_STS_ERR);
+    }
+    ASSERT_BIT_CLEAR(reg, AHCI_PX_TFD_ERR & (~emask << 8));
+    ASSERT_BIT_SET(reg, AHCI_PX_TFD_ERR & (emask << 8));
 }
 
 void ahci_port_check_interrupts(AHCIQState *ahci, uint8_t port,
@@ -1118,7 +1126,7 @@ void ahci_command_verify(AHCIQState *ahci, AHCICommand *cmd)
     uint8_t slot = cmd->slot;
     uint8_t port = cmd->port;
 
-    ahci_port_check_error(ahci, port);
+    ahci_port_check_error(ahci, port, cmd->interrupts, cmd->errors);
     ahci_port_check_interrupts(ahci, port, cmd->interrupts);
     ahci_port_check_nonbusy(ahci, port, slot);
     ahci_port_check_cmd_sanity(ahci, cmd);
diff --git a/tests/libqos/ahci.h b/tests/libqos/ahci.h
index f144fab..bbe04f8 100644
--- a/tests/libqos/ahci.h
+++ b/tests/libqos/ahci.h
@@ -576,7 +576,8 @@ void ahci_set_command_header(AHCIQState *ahci, uint8_t port,
 void ahci_destroy_command(AHCIQState *ahci, uint8_t port, uint8_t slot);
 
 /* AHCI sanity check routines */
-void ahci_port_check_error(AHCIQState *ahci, uint8_t port);
+void ahci_port_check_error(AHCIQState *ahci, uint8_t port,
+                           uint32_t imask, uint8_t emask);
 void ahci_port_check_interrupts(AHCIQState *ahci, uint8_t port,
                                 uint32_t intr_mask);
 void ahci_port_check_nonbusy(AHCIQState *ahci, uint8_t port, uint8_t slot);
-- 
2.7.4

[Qemu-devel] [PULL 7/9] libqos/ahci: Add ATAPI tray macros

[John Snow]

(1) Add START_STOP_UNIT command to ahci-test suite
(2) Add eject/start macro commands; this is not a data transfer
    command so it is not well-served by the existing generic pipeline.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1478553214-497-5-git-send-email-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
---
 tests/libqos/ahci.c | 30 ++++++++++++++++++++++++++++++
 tests/libqos/ahci.h |  7 +++++--
 2 files changed, 35 insertions(+), 2 deletions(-)

diff --git a/tests/libqos/ahci.c b/tests/libqos/ahci.c
index 77f9bed..603ecb6 100644
--- a/tests/libqos/ahci.c
+++ b/tests/libqos/ahci.c
@@ -882,6 +882,30 @@ AHCICommand *ahci_atapi_command_create(uint8_t scsi_cmd, uint16_t bcl)
     return cmd;
 }
 
+void ahci_atapi_eject(AHCIQState *ahci, uint8_t port)
+{
+    AHCICommand *cmd = ahci_atapi_command_create(CMD_ATAPI_START_STOP_UNIT, 0);
+    ahci_command_set_size(cmd, 0);
+
+    cmd->atapi_cmd[4] = 0x02; /* loej = true */
+    ahci_command_commit(ahci, cmd, port);
+    ahci_command_issue(ahci, cmd);
+    ahci_command_verify(ahci, cmd);
+    ahci_command_free(cmd);
+}
+
+void ahci_atapi_load(AHCIQState *ahci, uint8_t port)
+{
+    AHCICommand *cmd = ahci_atapi_command_create(CMD_ATAPI_START_STOP_UNIT, 0);
+    ahci_command_set_size(cmd, 0);
+
+    cmd->atapi_cmd[4] = 0x03; /* loej,start = true */
+    ahci_command_commit(ahci, cmd, port);
+    ahci_command_issue(ahci, cmd);
+    ahci_command_verify(ahci, cmd);
+    ahci_command_free(cmd);
+}
+
 void ahci_command_free(AHCICommand *cmd)
 {
     g_free(cmd->atapi_cmd);
@@ -910,6 +934,9 @@ static void ahci_atapi_command_set_offset(AHCICommand *cmd, uint64_t lba)
         g_assert_cmpuint(lba, <=, UINT32_MAX);
         stl_be_p(&cbd[2], lba);
         break;
+    case CMD_ATAPI_START_STOP_UNIT:
+        g_assert_cmpuint(lba, ==, 0x00);
+        break;
     default:
         /* SCSI doesn't have uniform packet formats,
          * so you have to add support for it manually. Sorry! */
@@ -976,6 +1003,9 @@ static void ahci_atapi_set_size(AHCICommand *cmd, uint64_t xbytes)
         cbd[7] = (tmp & 0xFF00) >> 8;
         cbd[8] = (tmp & 0xFF);
         break;
+    case CMD_ATAPI_START_STOP_UNIT:
+        g_assert_cmpuint(xbytes, ==, 0);
+        break;
     default:
         /* SCSI doesn't have uniform packet formats,
          * so you have to add support for it manually. Sorry! */
diff --git a/tests/libqos/ahci.h b/tests/libqos/ahci.h
index bbe04f8..05ce3de 100644
--- a/tests/libqos/ahci.h
+++ b/tests/libqos/ahci.h
@@ -287,8 +287,9 @@ enum {
 
 /* ATAPI Commands */
 enum {
-    CMD_ATAPI_READ_10 = 0x28,
-    CMD_ATAPI_READ_CD = 0xbe,
+    CMD_ATAPI_START_STOP_UNIT = 0x1b,
+    CMD_ATAPI_READ_10         = 0x28,
+    CMD_ATAPI_READ_CD         = 0xbe,
 };
 
 /* AHCI Command Header Flags & Masks*/
@@ -600,6 +601,8 @@ void ahci_io(AHCIQState *ahci, uint8_t port, uint8_t ide_cmd,
              void *buffer, size_t bufsize, uint64_t sector);
 void ahci_exec(AHCIQState *ahci, uint8_t port,
                uint8_t op, const AHCIOpts *opts);
+void ahci_atapi_eject(AHCIQState *ahci, uint8_t port);
+void ahci_atapi_load(AHCIQState *ahci, uint8_t port);
 
 /* Command: Fine-grained lifecycle */
 AHCICommand *ahci_command_create(uint8_t command_name);
-- 
2.7.4

[Qemu-devel] [PULL 8/9] libqos/ahci: Add get_sense and test_ready

[John Snow]

Required for tray tests once a medium may have changed.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1478553214-497-6-git-send-email-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
---
 tests/libqos/ahci.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 tests/libqos/ahci.h | 16 ++++++++++++++++
 2 files changed, 66 insertions(+)

diff --git a/tests/libqos/ahci.c b/tests/libqos/ahci.c
index 603ecb6..924c6a8 100644
--- a/tests/libqos/ahci.c
+++ b/tests/libqos/ahci.c
@@ -882,6 +882,49 @@ AHCICommand *ahci_atapi_command_create(uint8_t scsi_cmd, uint16_t bcl)
     return cmd;
 }
 
+void ahci_atapi_test_ready(AHCIQState *ahci, uint8_t port,
+                           bool ready, uint8_t expected_sense)
+{
+    AHCICommand *cmd = ahci_atapi_command_create(CMD_ATAPI_TEST_UNIT_READY, 0);
+    ahci_command_set_size(cmd, 0);
+    if (!ready) {
+        cmd->interrupts |= AHCI_PX_IS_TFES;
+        cmd->errors |= expected_sense << 4;
+    }
+    ahci_command_commit(ahci, cmd, port);
+    ahci_command_issue(ahci, cmd);
+    ahci_command_verify(ahci, cmd);
+    ahci_command_free(cmd);
+}
+
+static int copy_buffer(AHCIQState *ahci, AHCICommand *cmd,
+                        const AHCIOpts *opts)
+{
+    unsigned char *rx = opts->opaque;
+    bufread(opts->buffer, rx, opts->size);
+    return 0;
+}
+
+void ahci_atapi_get_sense(AHCIQState *ahci, uint8_t port,
+                          uint8_t *sense, uint8_t *asc)
+{
+    unsigned char *rx;
+    AHCIOpts opts = {
+        .size = 18,
+        .atapi = true,
+        .post_cb = copy_buffer,
+    };
+    rx = g_malloc(18);
+    opts.opaque = rx;
+
+    ahci_exec(ahci, port, CMD_ATAPI_REQUEST_SENSE, &opts);
+
+    *sense = rx[2];
+    *asc = rx[12];
+
+    g_free(rx);
+}
+
 void ahci_atapi_eject(AHCIQState *ahci, uint8_t port)
 {
     AHCICommand *cmd = ahci_atapi_command_create(CMD_ATAPI_START_STOP_UNIT, 0);
@@ -934,6 +977,8 @@ static void ahci_atapi_command_set_offset(AHCICommand *cmd, uint64_t lba)
         g_assert_cmpuint(lba, <=, UINT32_MAX);
         stl_be_p(&cbd[2], lba);
         break;
+    case CMD_ATAPI_REQUEST_SENSE:
+    case CMD_ATAPI_TEST_UNIT_READY:
     case CMD_ATAPI_START_STOP_UNIT:
         g_assert_cmpuint(lba, ==, 0x00);
         break;
@@ -1003,6 +1048,11 @@ static void ahci_atapi_set_size(AHCICommand *cmd, uint64_t xbytes)
         cbd[7] = (tmp & 0xFF00) >> 8;
         cbd[8] = (tmp & 0xFF);
         break;
+    case CMD_ATAPI_REQUEST_SENSE:
+        g_assert_cmpuint(xbytes, <=, UINT8_MAX);
+        cbd[4] = (uint8_t)xbytes;
+        break;
+    case CMD_ATAPI_TEST_UNIT_READY:
     case CMD_ATAPI_START_STOP_UNIT:
         g_assert_cmpuint(xbytes, ==, 0);
         break;
diff --git a/tests/libqos/ahci.h b/tests/libqos/ahci.h
index 05ce3de..ca83afc 100644
--- a/tests/libqos/ahci.h
+++ b/tests/libqos/ahci.h
@@ -287,11 +287,24 @@ enum {
 
 /* ATAPI Commands */
 enum {
+    CMD_ATAPI_TEST_UNIT_READY = 0x00,
+    CMD_ATAPI_REQUEST_SENSE   = 0x03,
     CMD_ATAPI_START_STOP_UNIT = 0x1b,
     CMD_ATAPI_READ_10         = 0x28,
     CMD_ATAPI_READ_CD         = 0xbe,
 };
 
+enum {
+    SENSE_NO_SENSE       = 0x00,
+    SENSE_NOT_READY      = 0x02,
+    SENSE_UNIT_ATTENTION = 0x06,
+};
+
+enum {
+    ASC_MEDIUM_MAY_HAVE_CHANGED = 0x28,
+    ASC_MEDIUM_NOT_PRESENT      = 0x3a,
+};
+
 /* AHCI Command Header Flags & Masks*/
 #define CMDH_CFL        (0x1F)
 #define CMDH_ATAPI      (0x20)
@@ -601,6 +614,9 @@ void ahci_io(AHCIQState *ahci, uint8_t port, uint8_t ide_cmd,
              void *buffer, size_t bufsize, uint64_t sector);
 void ahci_exec(AHCIQState *ahci, uint8_t port,
                uint8_t op, const AHCIOpts *opts);
+void ahci_atapi_test_ready(AHCIQState *ahci, uint8_t port, bool ready, uint8_t expected_sense);
+void ahci_atapi_get_sense(AHCIQState *ahci, uint8_t port,
+                          uint8_t *sense, uint8_t *asc);
 void ahci_atapi_eject(AHCIQState *ahci, uint8_t port);
 void ahci_atapi_load(AHCIQState *ahci, uint8_t port);
 
-- 
2.7.4

[Qemu-devel] [PULL 9/9] ahci-test: add QMP tray test for ATAPI

[John Snow]

Test QMP events for a CDROM device with or without a media inserted,
including both guest-initiated and hw-initiated eject/load requests.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1478553214-497-7-git-send-email-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
---
 tests/ahci-test.c | 98 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 98 insertions(+)

diff --git a/tests/ahci-test.c b/tests/ahci-test.c
index 0b1b6f7..ef17629 100644
--- a/tests/ahci-test.c
+++ b/tests/ahci-test.c
@@ -1554,6 +1554,103 @@ static void test_atapi_bcl(void)
     ahci_test_cdrom(0, false, CMD_ATAPI_READ_CD, true, 0);
 }
 
+
+static void atapi_wait_tray(bool open)
+{
+    QDict *rsp = qmp_eventwait_ref("DEVICE_TRAY_MOVED");
+    QDict *data = qdict_get_qdict(rsp, "data");
+    if (open) {
+        g_assert(qdict_get_bool(data, "tray-open"));
+    } else {
+        g_assert(!qdict_get_bool(data, "tray-open"));
+    }
+    QDECREF(rsp);
+}
+
+static void test_atapi_tray(void)
+{
+    AHCIQState *ahci;
+    unsigned char *tx;
+    char *iso;
+    int fd;
+    uint8_t port, sense, asc;
+    uint64_t iso_size = ATAPI_SECTOR_SIZE;
+    QDict *rsp;
+
+    fd = prepare_iso(iso_size, &tx, &iso);
+    ahci = ahci_boot_and_enable("-drive if=none,id=drive0,file=%s,format=raw "
+                                "-M q35 "
+                                "-device ide-cd,drive=drive0 ", iso);
+    port = ahci_port_select(ahci);
+
+    ahci_atapi_eject(ahci, port);
+    atapi_wait_tray(true);
+
+    ahci_atapi_load(ahci, port);
+    atapi_wait_tray(false);
+
+    /* Remove media */
+    qmp_async("{'execute': 'blockdev-open-tray', "
+               "'arguments': {'device': 'drive0'}}");
+    atapi_wait_tray(true);
+    rsp = qmp_receive();
+    QDECREF(rsp);
+
+    qmp_discard_response("{'execute': 'x-blockdev-remove-medium', "
+                         "'arguments': {'device': 'drive0'}}");
+
+    /* Test the tray without a medium */
+    ahci_atapi_load(ahci, port);
+    atapi_wait_tray(false);
+
+    ahci_atapi_eject(ahci, port);
+    atapi_wait_tray(true);
+
+    /* Re-insert media */
+    qmp_discard_response("{'execute': 'blockdev-add', "
+                          "'arguments': {'node-name': 'node0', "
+                                        "'driver': 'raw', "
+                                        "'file': { 'driver': 'file', "
+                                                  "'filename': %s }}}", iso);
+    qmp_discard_response("{'execute': 'x-blockdev-insert-medium',"
+                          "'arguments': { 'device': 'drive0', "
+                                         "'node-name': 'node0' }}");
+
+    /* Again, the event shows up first */
+    qmp_async("{'execute': 'blockdev-close-tray', "
+               "'arguments': {'device': 'drive0'}}");
+    atapi_wait_tray(false);
+    rsp = qmp_receive();
+    QDECREF(rsp);
+
+    /* Now, to convince ATAPI we understand the media has changed... */
+    ahci_atapi_test_ready(ahci, port, false, SENSE_NOT_READY);
+    ahci_atapi_get_sense(ahci, port, &sense, &asc);
+    g_assert_cmpuint(sense, ==, SENSE_NOT_READY);
+    g_assert_cmpuint(asc, ==, ASC_MEDIUM_NOT_PRESENT);
+
+    ahci_atapi_test_ready(ahci, port, false, SENSE_UNIT_ATTENTION);
+    ahci_atapi_get_sense(ahci, port, &sense, &asc);
+    g_assert_cmpuint(sense, ==, SENSE_UNIT_ATTENTION);
+    g_assert_cmpuint(asc, ==, ASC_MEDIUM_MAY_HAVE_CHANGED);
+
+    ahci_atapi_test_ready(ahci, port, true, SENSE_NO_SENSE);
+    ahci_atapi_get_sense(ahci, port, &sense, &asc);
+    g_assert_cmpuint(sense, ==, SENSE_NO_SENSE);
+
+    /* Final tray test. */
+    ahci_atapi_eject(ahci, port);
+    atapi_wait_tray(true);
+
+    ahci_atapi_load(ahci, port);
+    atapi_wait_tray(false);
+
+    /* Cleanup */
+    g_free(tx);
+    ahci_shutdown(ahci);
+    remove_iso(fd, iso);
+}
+
 /******************************************************************************/
 /* AHCI I/O Test Matrix Definitions                                           */
 
@@ -1844,6 +1941,7 @@ int main(int argc, char **argv)
     qtest_add_func("/ahci/cdrom/pio/multi", test_cdrom_pio_multi);
 
     qtest_add_func("/ahci/cdrom/pio/bcl", test_atapi_bcl);
+    qtest_add_func("/ahci/cdrom/eject", test_atapi_tray);
 
     ret = g_test_run();
 
-- 
2.7.4

Re: [Qemu-devel] [PULL 0/9] Ide patches

[no-reply]

Hi,

Your series seems to have some coding style problems. See output below for
more information:

Type: series
Subject: [Qemu-devel] [PULL 0/9] Ide patches
Message-id: 1478890195-30841-1-git-send-email-jsnow@redhat.com

=== TEST SCRIPT BEGIN ===
#!/bin/bash

BASE=base
n=1
total=$(git log --oneline $BASE.. | wc -l)
failed=0

# Useful git options
git config --local diff.renamelimit 0
git config --local diff.renames True

commits="$(git log --format=%H --reverse $BASE..)"
for c in $commits; do
    echo "Checking PATCH $n/$total: $(git show --no-patch --format=%s $c)..."
    if ! git show $c --format=email | ./scripts/checkpatch.pl --mailback -; then
        failed=1
        echo
    fi
    n=$((n+1))
done

exit $failed
=== TEST SCRIPT END ===

Updating 3c8cf5a9c21ff8782164d1def7f44bd888713384
Switched to a new branch 'test'
5e96eb8 ahci-test: add QMP tray test for ATAPI
5fd60af libqos/ahci: Add get_sense and test_ready
14049ed libqos/ahci: Add ATAPI tray macros
330e1d8 libqos/ahci: Support expected errors
d895cc8 libqtest: add qmp_eventwait_ref
12f6469 block-backend: Always notify on blk_eject
d1277ce ahci-test: test atapi read_cd with bcl, nb_sectors = 0
4cf7858 ahci-test: Create smaller test ISO images
5f77a05 atapi: classify read_cd as conditionally returning data

=== OUTPUT BEGIN ===
fatal: unrecognized argument: --no-patch
Checking PATCH 1/9: ...
ERROR: space prohibited after that open square bracket '['
#92: FILE: hw/ide/atapi.c:1324:
+    [ 0xbe ] = { cmd_read_cd,                       CHECK_READY | CONDDATA },

ERROR: space prohibited before that close square bracket ']'
#92: FILE: hw/ide/atapi.c:1324:
+    [ 0xbe ] = { cmd_read_cd,                       CHECK_READY | CONDDATA },

total: 2 errors, 0 warnings, 86 lines checked

Your patch has style problems, please review.  If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.

fatal: unrecognized argument: --no-patch
Checking PATCH 2/9: ...
fatal: unrecognized argument: --no-patch
Checking PATCH 3/9: ...
WARNING: line over 80 characters
#169: FILE: tests/libqos/ahci.c:908:
+        fprintf(stderr, "The Libqos AHCI driver does not support the set_offset "

total: 0 errors, 1 warnings, 192 lines checked

Your patch has style problems, please review.  If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.
fatal: unrecognized argument: --no-patch
Checking PATCH 4/9: ...
fatal: unrecognized argument: --no-patch
Checking PATCH 5/9: ...
fatal: unrecognized argument: --no-patch
Checking PATCH 6/9: ...
fatal: unrecognized argument: --no-patch
Checking PATCH 7/9: ...
fatal: unrecognized argument: --no-patch
Checking PATCH 8/9: ...
ERROR: line over 90 characters
#121: FILE: tests/libqos/ahci.h:617:
+void ahci_atapi_test_ready(AHCIQState *ahci, uint8_t port, bool ready, uint8_t expected_sense);

total: 1 errors, 0 warnings, 101 lines checked

Your patch has style problems, please review.  If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.

fatal: unrecognized argument: --no-patch
Checking PATCH 9/9: ...
=== OUTPUT END ===

Test command exited with code: 1


---
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