[Qemu-devel] [PATCH 2/5] block: bdrv_eject(): Make eject_flag a real bool

[Qemu-devel] [PATCH 2/5] block: bdrv_eject(): Make eject_flag a real bool

[Luiz Capitulino]

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
---
 block.c           |    2 +-
 block.h           |    2 +-
 block/raw-posix.c |    6 +++---
 block/raw.c       |    2 +-
 block_int.h       |    2 +-
 5 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/block.c b/block.c
index 160b9de..4042ada 100644
--- a/block.c
+++ b/block.c
@@ -3560,7 +3560,7 @@ int bdrv_media_changed(BlockDriverState *bs)
 /**
  * If eject_flag is TRUE, eject the media. Otherwise, close the tray
  */
-void bdrv_eject(BlockDriverState *bs, int eject_flag)
+void bdrv_eject(BlockDriverState *bs, bool eject_flag)
 {
     BlockDriver *drv = bs->drv;
 
diff --git a/block.h b/block.h
index 36a53a0..ce8c5ed 100644
--- a/block.h
+++ b/block.h
@@ -257,7 +257,7 @@ int bdrv_enable_write_cache(BlockDriverState *bs);
 int bdrv_is_inserted(BlockDriverState *bs);
 int bdrv_media_changed(BlockDriverState *bs);
 void bdrv_lock_medium(BlockDriverState *bs, bool locked);
-void bdrv_eject(BlockDriverState *bs, int eject_flag);
+void bdrv_eject(BlockDriverState *bs, bool eject_flag);
 void bdrv_get_format(BlockDriverState *bs, char *buf, int buf_size);
 BlockDriverState *bdrv_find(const char *name);
 BlockDriverState *bdrv_next(BlockDriverState *bs);
diff --git a/block/raw-posix.c b/block/raw-posix.c
index 2ee5d69..2d1bc13 100644
--- a/block/raw-posix.c
+++ b/block/raw-posix.c
@@ -994,7 +994,7 @@ static int floppy_media_changed(BlockDriverState *bs)
     return ret;
 }
 
-static void floppy_eject(BlockDriverState *bs, int eject_flag)
+static void floppy_eject(BlockDriverState *bs, bool eject_flag)
 {
     BDRVRawState *s = bs->opaque;
     int fd;
@@ -1084,7 +1084,7 @@ static int cdrom_is_inserted(BlockDriverState *bs)
     return 0;
 }
 
-static void cdrom_eject(BlockDriverState *bs, int eject_flag)
+static void cdrom_eject(BlockDriverState *bs, bool eject_flag)
 {
     BDRVRawState *s = bs->opaque;
 
@@ -1194,7 +1194,7 @@ static int cdrom_is_inserted(BlockDriverState *bs)
     return raw_getlength(bs) > 0;
 }
 
-static void cdrom_eject(BlockDriverState *bs, int eject_flag)
+static void cdrom_eject(BlockDriverState *bs, bool eject_flag)
 {
     BDRVRawState *s = bs->opaque;
 
diff --git a/block/raw.c b/block/raw.c
index 6098070..1cdac0c 100644
--- a/block/raw.c
+++ b/block/raw.c
@@ -61,7 +61,7 @@ static int raw_media_changed(BlockDriverState *bs)
     return bdrv_media_changed(bs->file);
 }
 
-static void raw_eject(BlockDriverState *bs, int eject_flag)
+static void raw_eject(BlockDriverState *bs, bool eject_flag)
 {
     bdrv_eject(bs->file, eject_flag);
 }
diff --git a/block_int.h b/block_int.h
index 7be2988..f954add 100644
--- a/block_int.h
+++ b/block_int.h
@@ -189,7 +189,7 @@ struct BlockDriver {
     /* removable device specific */
     int (*bdrv_is_inserted)(BlockDriverState *bs);
     int (*bdrv_media_changed)(BlockDriverState *bs);
-    void (*bdrv_eject)(BlockDriverState *bs, int eject_flag);
+    void (*bdrv_eject)(BlockDriverState *bs, bool eject_flag);
     void (*bdrv_lock_medium)(BlockDriverState *bs, bool locked);
 
     /* to control generic scsi devices */
-- 
1.7.9.111.gf3fb0.dirty

[Qemu-devel] [PATCH 2/5] block: bdrv_eject(): Make eject_flag a real bool

[Luiz Capitulino]

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
---
 block.c           |    2 +-
 block.h           |    2 +-
 block/raw-posix.c |    6 +++---
 block/raw.c       |    2 +-
 block_int.h       |    2 +-
 5 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/block.c b/block.c
index 8d4cfea..bfb0dec 100644
--- a/block.c
+++ b/block.c
@@ -3609,7 +3609,7 @@ int bdrv_media_changed(BlockDriverState *bs)
 /**
  * If eject_flag is TRUE, eject the media. Otherwise, close the tray
  */
-void bdrv_eject(BlockDriverState *bs, int eject_flag)
+void bdrv_eject(BlockDriverState *bs, bool eject_flag)
 {
     BlockDriver *drv = bs->drv;
 
diff --git a/block.h b/block.h
index ec0a6c8..49bca5a 100644
--- a/block.h
+++ b/block.h
@@ -265,7 +265,7 @@ int bdrv_enable_write_cache(BlockDriverState *bs);
 int bdrv_is_inserted(BlockDriverState *bs);
 int bdrv_media_changed(BlockDriverState *bs);
 void bdrv_lock_medium(BlockDriverState *bs, bool locked);
-void bdrv_eject(BlockDriverState *bs, int eject_flag);
+void bdrv_eject(BlockDriverState *bs, bool eject_flag);
 void bdrv_get_format(BlockDriverState *bs, char *buf, int buf_size);
 BlockDriverState *bdrv_find(const char *name);
 BlockDriverState *bdrv_next(BlockDriverState *bs);
diff --git a/block/raw-posix.c b/block/raw-posix.c
index 2ee5d69..2d1bc13 100644
--- a/block/raw-posix.c
+++ b/block/raw-posix.c
@@ -994,7 +994,7 @@ static int floppy_media_changed(BlockDriverState *bs)
     return ret;
 }
 
-static void floppy_eject(BlockDriverState *bs, int eject_flag)
+static void floppy_eject(BlockDriverState *bs, bool eject_flag)
 {
     BDRVRawState *s = bs->opaque;
     int fd;
@@ -1084,7 +1084,7 @@ static int cdrom_is_inserted(BlockDriverState *bs)
     return 0;
 }
 
-static void cdrom_eject(BlockDriverState *bs, int eject_flag)
+static void cdrom_eject(BlockDriverState *bs, bool eject_flag)
 {
     BDRVRawState *s = bs->opaque;
 
@@ -1194,7 +1194,7 @@ static int cdrom_is_inserted(BlockDriverState *bs)
     return raw_getlength(bs) > 0;
 }
 
-static void cdrom_eject(BlockDriverState *bs, int eject_flag)
+static void cdrom_eject(BlockDriverState *bs, bool eject_flag)
 {
     BDRVRawState *s = bs->opaque;
 
diff --git a/block/raw.c b/block/raw.c
index 6098070..1cdac0c 100644
--- a/block/raw.c
+++ b/block/raw.c
@@ -61,7 +61,7 @@ static int raw_media_changed(BlockDriverState *bs)
     return bdrv_media_changed(bs->file);
 }
 
-static void raw_eject(BlockDriverState *bs, int eject_flag)
+static void raw_eject(BlockDriverState *bs, bool eject_flag)
 {
     bdrv_eject(bs->file, eject_flag);
 }
diff --git a/block_int.h b/block_int.h
index 7946cf6..04f4b83 100644
--- a/block_int.h
+++ b/block_int.h
@@ -197,7 +197,7 @@ struct BlockDriver {
     /* removable device specific */
     int (*bdrv_is_inserted)(BlockDriverState *bs);
     int (*bdrv_media_changed)(BlockDriverState *bs);
-    void (*bdrv_eject)(BlockDriverState *bs, int eject_flag);
+    void (*bdrv_eject)(BlockDriverState *bs, bool eject_flag);
     void (*bdrv_lock_medium)(BlockDriverState *bs, bool locked);
 
     /* to control generic scsi devices */
-- 
1.7.9.111.gf3fb0.dirty

[Qemu-devel] [PULL 0/5]: QMP queue

[Luiz Capitulino]

Contains only the DEVICE_TRAY_MOVED event series.

The changes (since 235fe3bfd46b1104575b540d0bc3fdf584030b99) are available
in the following repository:

    git://repo.or.cz/qemu/qmp-unstable.git queue/qmp

Luiz Capitulino (5):
      block: Rename bdrv_mon_event() & BlockMonEventAction
      block: bdrv_eject(): Make eject_flag a real bool
      block: Don't call bdrv_eject() if the tray state didn't change
      ide: drop ide_tray_state_post_load()
      qmp: add DEVICE_TRAY_MOVED event

 QMP/qmp-events.txt |   18 +++++++++++
 block.c            |   84 +++++++++++++++++++++++++++++++++------------------
 block.h            |    8 ++--
 block/raw-posix.c  |    6 ++--
 block/raw.c        |    2 +-
 block_int.h        |    2 +-
 hw/ide/atapi.c     |    7 +++-
 hw/ide/core.c      |   16 ++--------
 hw/scsi-disk.c     |   13 +++++---
 hw/virtio-blk.c    |    6 ++--
 monitor.c          |    3 ++
 monitor.h          |    1 +
 12 files changed, 104 insertions(+), 62 deletions(-)

[Qemu-devel] [PATCH 1/5] block: Rename bdrv_mon_event() & BlockMonEventAction

[Luiz Capitulino]

They are QMP events, not monitor events. Rename them accordingly.

Also, move bdrv_emit_qmp_error_event() up in the file. A new event will
be added soon and it's good to have them next each other.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Kevin Wolf <kwolf@redhat.com>
---
 block.c         |   58 +++++++++++++++++++++++++++---------------------------
 block.h         |    6 ++--
 hw/ide/core.c   |    6 ++--
 hw/scsi-disk.c  |    6 ++--
 hw/virtio-blk.c |    6 ++--
 5 files changed, 41 insertions(+), 41 deletions(-)

diff --git a/block.c b/block.c
index ae297bb..8d4cfea 100644
--- a/block.c
+++ b/block.c
@@ -943,6 +943,35 @@ void bdrv_set_dev_ops(BlockDriverState *bs, const BlockDevOps *ops,
     }
 }
 
+void bdrv_emit_qmp_error_event(const BlockDriverState *bdrv,
+                               BlockQMPEventAction action, int is_read)
+{
+    QObject *data;
+    const char *action_str;
+
+    switch (action) {
+    case BDRV_ACTION_REPORT:
+        action_str = "report";
+        break;
+    case BDRV_ACTION_IGNORE:
+        action_str = "ignore";
+        break;
+    case BDRV_ACTION_STOP:
+        action_str = "stop";
+        break;
+    default:
+        abort();
+    }
+
+    data = qobject_from_jsonf("{ 'device': %s, 'action': %s, 'operation': %s }",
+                              bdrv->device_name,
+                              action_str,
+                              is_read ? "read" : "write");
+    monitor_protocol_event(QEVENT_BLOCK_IO_ERROR, data);
+
+    qobject_decref(data);
+}
+
 static void bdrv_dev_change_media_cb(BlockDriverState *bs, bool load)
 {
     if (bs->dev_ops && bs->dev_ops->change_media_cb) {
@@ -2293,35 +2322,6 @@ int bdrv_is_allocated(BlockDriverState *bs, int64_t sector_num, int nb_sectors,
     return data.ret;
 }
 
-void bdrv_mon_event(const BlockDriverState *bdrv,
-                    BlockMonEventAction action, int is_read)
-{
-    QObject *data;
-    const char *action_str;
-
-    switch (action) {
-    case BDRV_ACTION_REPORT:
-        action_str = "report";
-        break;
-    case BDRV_ACTION_IGNORE:
-        action_str = "ignore";
-        break;
-    case BDRV_ACTION_STOP:
-        action_str = "stop";
-        break;
-    default:
-        abort();
-    }
-
-    data = qobject_from_jsonf("{ 'device': %s, 'action': %s, 'operation': %s }",
-                              bdrv->device_name,
-                              action_str,
-                              is_read ? "read" : "write");
-    monitor_protocol_event(QEVENT_BLOCK_IO_ERROR, data);
-
-    qobject_decref(data);
-}
-
 BlockInfoList *qmp_query_block(Error **errp)
 {
     BlockInfoList *head = NULL, *cur_item = NULL;
diff --git a/block.h b/block.h
index 60ea730..ec0a6c8 100644
--- a/block.h
+++ b/block.h
@@ -85,15 +85,15 @@ typedef enum {
 
 typedef enum {
     BDRV_ACTION_REPORT, BDRV_ACTION_IGNORE, BDRV_ACTION_STOP
-} BlockMonEventAction;
+} BlockQMPEventAction;
 
 void bdrv_iostatus_enable(BlockDriverState *bs);
 void bdrv_iostatus_reset(BlockDriverState *bs);
 void bdrv_iostatus_disable(BlockDriverState *bs);
 bool bdrv_iostatus_is_enabled(const BlockDriverState *bs);
 void bdrv_iostatus_set_err(BlockDriverState *bs, int error);
-void bdrv_mon_event(const BlockDriverState *bdrv,
-                    BlockMonEventAction action, int is_read);
+void bdrv_emit_qmp_error_event(const BlockDriverState *bdrv,
+                               BlockQMPEventAction action, int is_read);
 void bdrv_info_print(Monitor *mon, const QObject *data);
 void bdrv_info(Monitor *mon, QObject **ret_data);
 void bdrv_stats_print(Monitor *mon, const QObject *data);
diff --git a/hw/ide/core.c b/hw/ide/core.c
index 56b219b..0856385 100644
--- a/hw/ide/core.c
+++ b/hw/ide/core.c
@@ -519,7 +519,7 @@ static int ide_handle_rw_error(IDEState *s, int error, int op)
     BlockErrorAction action = bdrv_get_on_error(s->bs, is_read);
 
     if (action == BLOCK_ERR_IGNORE) {
-        bdrv_mon_event(s->bs, BDRV_ACTION_IGNORE, is_read);
+        bdrv_emit_qmp_error_event(s->bs, BDRV_ACTION_IGNORE, is_read);
         return 0;
     }
 
@@ -527,7 +527,7 @@ static int ide_handle_rw_error(IDEState *s, int error, int op)
             || action == BLOCK_ERR_STOP_ANY) {
         s->bus->dma->ops->set_unit(s->bus->dma, s->unit);
         s->bus->error_status = op;
-        bdrv_mon_event(s->bs, BDRV_ACTION_STOP, is_read);
+        bdrv_emit_qmp_error_event(s->bs, BDRV_ACTION_STOP, is_read);
         vm_stop(RUN_STATE_IO_ERROR);
         bdrv_iostatus_set_err(s->bs, error);
     } else {
@@ -537,7 +537,7 @@ static int ide_handle_rw_error(IDEState *s, int error, int op)
         } else {
             ide_rw_error(s);
         }
-        bdrv_mon_event(s->bs, BDRV_ACTION_REPORT, is_read);
+        bdrv_emit_qmp_error_event(s->bs, BDRV_ACTION_REPORT, is_read);
     }
 
     return 1;
diff --git a/hw/scsi-disk.c b/hw/scsi-disk.c
index c12e3a6..a5d2fd1 100644
--- a/hw/scsi-disk.c
+++ b/hw/scsi-disk.c
@@ -233,14 +233,14 @@ static int scsi_handle_rw_error(SCSIDiskReq *r, int error)
     BlockErrorAction action = bdrv_get_on_error(s->qdev.conf.bs, is_read);
 
     if (action == BLOCK_ERR_IGNORE) {
-        bdrv_mon_event(s->qdev.conf.bs, BDRV_ACTION_IGNORE, is_read);
+        bdrv_emit_qmp_error_event(s->qdev.conf.bs, BDRV_ACTION_IGNORE, is_read);
         return 0;
     }
 
     if ((error == ENOSPC && action == BLOCK_ERR_STOP_ENOSPC)
             || action == BLOCK_ERR_STOP_ANY) {
 
-        bdrv_mon_event(s->qdev.conf.bs, BDRV_ACTION_STOP, is_read);
+        bdrv_emit_qmp_error_event(s->qdev.conf.bs, BDRV_ACTION_STOP, is_read);
         vm_stop(RUN_STATE_IO_ERROR);
         bdrv_iostatus_set_err(s->qdev.conf.bs, error);
         scsi_req_retry(&r->req);
@@ -259,7 +259,7 @@ static int scsi_handle_rw_error(SCSIDiskReq *r, int error)
             scsi_check_condition(r, SENSE_CODE(IO_ERROR));
             break;
         }
-        bdrv_mon_event(s->qdev.conf.bs, BDRV_ACTION_REPORT, is_read);
+        bdrv_emit_qmp_error_event(s->qdev.conf.bs, BDRV_ACTION_REPORT, is_read);
     }
     return 1;
 }
diff --git a/hw/virtio-blk.c b/hw/virtio-blk.c
index a5a4396..49990f8 100644
--- a/hw/virtio-blk.c
+++ b/hw/virtio-blk.c
@@ -69,7 +69,7 @@ static int virtio_blk_handle_rw_error(VirtIOBlockReq *req, int error,
     VirtIOBlock *s = req->dev;
 
     if (action == BLOCK_ERR_IGNORE) {
-        bdrv_mon_event(s->bs, BDRV_ACTION_IGNORE, is_read);
+        bdrv_emit_qmp_error_event(s->bs, BDRV_ACTION_IGNORE, is_read);
         return 0;
     }
 
@@ -77,14 +77,14 @@ static int virtio_blk_handle_rw_error(VirtIOBlockReq *req, int error,
             || action == BLOCK_ERR_STOP_ANY) {
         req->next = s->rq;
         s->rq = req;
-        bdrv_mon_event(s->bs, BDRV_ACTION_STOP, is_read);
+        bdrv_emit_qmp_error_event(s->bs, BDRV_ACTION_STOP, is_read);
         vm_stop(RUN_STATE_IO_ERROR);
         bdrv_iostatus_set_err(s->bs, error);
     } else {
         virtio_blk_req_complete(req, VIRTIO_BLK_S_IOERR);
         bdrv_acct_done(s->bs, &req->acct);
         g_free(req);
-        bdrv_mon_event(s->bs, BDRV_ACTION_REPORT, is_read);
+        bdrv_emit_qmp_error_event(s->bs, BDRV_ACTION_REPORT, is_read);
     }
 
     return 1;
-- 
1.7.9.111.gf3fb0.dirty

[Qemu-devel] [PATCH 2/5] block: bdrv_eject(): Make eject_flag a real bool

[Luiz Capitulino]

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Kevin Wolf <kwolf@redhat.com>
---
 block.c           |    2 +-
 block.h           |    2 +-
 block/raw-posix.c |    6 +++---
 block/raw.c       |    2 +-
 block_int.h       |    2 +-
 5 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/block.c b/block.c
index 8d4cfea..bfb0dec 100644
--- a/block.c
+++ b/block.c
@@ -3609,7 +3609,7 @@ int bdrv_media_changed(BlockDriverState *bs)
 /**
  * If eject_flag is TRUE, eject the media. Otherwise, close the tray
  */
-void bdrv_eject(BlockDriverState *bs, int eject_flag)
+void bdrv_eject(BlockDriverState *bs, bool eject_flag)
 {
     BlockDriver *drv = bs->drv;
 
diff --git a/block.h b/block.h
index ec0a6c8..49bca5a 100644
--- a/block.h
+++ b/block.h
@@ -265,7 +265,7 @@ int bdrv_enable_write_cache(BlockDriverState *bs);
 int bdrv_is_inserted(BlockDriverState *bs);
 int bdrv_media_changed(BlockDriverState *bs);
 void bdrv_lock_medium(BlockDriverState *bs, bool locked);
-void bdrv_eject(BlockDriverState *bs, int eject_flag);
+void bdrv_eject(BlockDriverState *bs, bool eject_flag);
 void bdrv_get_format(BlockDriverState *bs, char *buf, int buf_size);
 BlockDriverState *bdrv_find(const char *name);
 BlockDriverState *bdrv_next(BlockDriverState *bs);
diff --git a/block/raw-posix.c b/block/raw-posix.c
index 2ee5d69..2d1bc13 100644
--- a/block/raw-posix.c
+++ b/block/raw-posix.c
@@ -994,7 +994,7 @@ static int floppy_media_changed(BlockDriverState *bs)
     return ret;
 }
 
-static void floppy_eject(BlockDriverState *bs, int eject_flag)
+static void floppy_eject(BlockDriverState *bs, bool eject_flag)
 {
     BDRVRawState *s = bs->opaque;
     int fd;
@@ -1084,7 +1084,7 @@ static int cdrom_is_inserted(BlockDriverState *bs)
     return 0;
 }
 
-static void cdrom_eject(BlockDriverState *bs, int eject_flag)
+static void cdrom_eject(BlockDriverState *bs, bool eject_flag)
 {
     BDRVRawState *s = bs->opaque;
 
@@ -1194,7 +1194,7 @@ static int cdrom_is_inserted(BlockDriverState *bs)
     return raw_getlength(bs) > 0;
 }
 
-static void cdrom_eject(BlockDriverState *bs, int eject_flag)
+static void cdrom_eject(BlockDriverState *bs, bool eject_flag)
 {
     BDRVRawState *s = bs->opaque;
 
diff --git a/block/raw.c b/block/raw.c
index 6098070..1cdac0c 100644
--- a/block/raw.c
+++ b/block/raw.c
@@ -61,7 +61,7 @@ static int raw_media_changed(BlockDriverState *bs)
     return bdrv_media_changed(bs->file);
 }
 
-static void raw_eject(BlockDriverState *bs, int eject_flag)
+static void raw_eject(BlockDriverState *bs, bool eject_flag)
 {
     bdrv_eject(bs->file, eject_flag);
 }
diff --git a/block_int.h b/block_int.h
index 7946cf6..04f4b83 100644
--- a/block_int.h
+++ b/block_int.h
@@ -197,7 +197,7 @@ struct BlockDriver {
     /* removable device specific */
     int (*bdrv_is_inserted)(BlockDriverState *bs);
     int (*bdrv_media_changed)(BlockDriverState *bs);
-    void (*bdrv_eject)(BlockDriverState *bs, int eject_flag);
+    void (*bdrv_eject)(BlockDriverState *bs, bool eject_flag);
     void (*bdrv_lock_medium)(BlockDriverState *bs, bool locked);
 
     /* to control generic scsi devices */
-- 
1.7.9.111.gf3fb0.dirty

[Qemu-devel] [PATCH 3/5] block: Don't call bdrv_eject() if the tray state didn't change

[Luiz Capitulino]

It's not needed. Besides we can then assume that bdrv_eject() is
only called when there's a tray state change, which is useful to
the DEVICE_TRAY_MOVED event (going to be added in a future
commit).

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Kevin Wolf <kwolf@redhat.com>
---
 hw/ide/atapi.c |    7 +++++--
 hw/scsi-disk.c |    7 +++++--
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/hw/ide/atapi.c b/hw/ide/atapi.c
index 0adb27b..5919cf5 100644
--- a/hw/ide/atapi.c
+++ b/hw/ide/atapi.c
@@ -883,8 +883,11 @@ static void cmd_start_stop_unit(IDEState *s, uint8_t* buf)
             ide_atapi_cmd_error(s, sense, ASC_MEDIA_REMOVAL_PREVENTED);
             return;
         }
-        bdrv_eject(s->bs, !start);
-        s->tray_open = !start;
+
+        if (s->tray_open != !start) {
+            bdrv_eject(s->bs, !start);
+            s->tray_open = !start;
+        }
     }
 
     ide_atapi_cmd_ok(s);
diff --git a/hw/scsi-disk.c b/hw/scsi-disk.c
index a5d2fd1..091ecdc 100644
--- a/hw/scsi-disk.c
+++ b/hw/scsi-disk.c
@@ -1050,8 +1050,11 @@ static int scsi_disk_emulate_start_stop(SCSIDiskReq *r)
                                  : SENSE_CODE(NOT_READY_REMOVAL_PREVENTED));
             return -1;
         }
-        bdrv_eject(s->qdev.conf.bs, !start);
-        s->tray_open = !start;
+
+        if (s->tray_open != !start) {
+            bdrv_eject(s->qdev.conf.bs, !start);
+            s->tray_open = !start;
+        }
     }
     return 0;
 }
-- 
1.7.9.111.gf3fb0.dirty

[Qemu-devel] [PATCH 4/5] ide: drop ide_tray_state_post_load()

[Luiz Capitulino]

This is used to sync the physical tray state after migration when
using CD-ROM passthrough. However, migrating when using passthrough
is broken anyway and shouldn't be supported...

So, drop this function as it causes a problem with the DEVICE_TRAY_MOVED
event, which is going to be introduced by the next commit.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Kevin Wolf <kwolf@redhat.com>
---
 hw/ide/core.c |   10 ----------
 1 files changed, 0 insertions(+), 10 deletions(-)

diff --git a/hw/ide/core.c b/hw/ide/core.c
index 0856385..ce570a7 100644
--- a/hw/ide/core.c
+++ b/hw/ide/core.c
@@ -2077,15 +2077,6 @@ static bool ide_drive_pio_state_needed(void *opaque)
         || (s->bus->error_status & BM_STATUS_PIO_RETRY);
 }
 
-static int ide_tray_state_post_load(void *opaque, int version_id)
-{
-    IDEState *s = opaque;
-
-    bdrv_eject(s->bs, s->tray_open);
-    bdrv_lock_medium(s->bs, s->tray_locked);
-    return 0;
-}
-
 static bool ide_tray_state_needed(void *opaque)
 {
     IDEState *s = opaque;
@@ -2125,7 +2116,6 @@ static const VMStateDescription vmstate_ide_tray_state = {
     .version_id = 1,
     .minimum_version_id = 1,
     .minimum_version_id_old = 1,
-    .post_load = ide_tray_state_post_load,
     .fields = (VMStateField[]) {
         VMSTATE_BOOL(tray_open, IDEState),
         VMSTATE_BOOL(tray_locked, IDEState),
-- 
1.7.9.111.gf3fb0.dirty

[Qemu-devel] [PATCH 5/5] qmp: add DEVICE_TRAY_MOVED event

[Luiz Capitulino]

It's emitted whenever the tray is moved by the guest or by HMP/QMP
commands.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Kevin Wolf <kwolf@redhat.com>
---
 QMP/qmp-events.txt |   18 ++++++++++++++++++
 block.c            |   24 ++++++++++++++++++++++++
 monitor.c          |    3 +++
 monitor.h          |    1 +
 4 files changed, 46 insertions(+), 0 deletions(-)

diff --git a/QMP/qmp-events.txt b/QMP/qmp-events.txt
index 06cb404..9286af5 100644
--- a/QMP/qmp-events.txt
+++ b/QMP/qmp-events.txt
@@ -26,6 +26,24 @@ Example:
 Note: If action is "stop", a STOP event will eventually follow the
 BLOCK_IO_ERROR event.
 
+DEVICE_TRAY_MOVED
+-----------------
+
+It's emitted whenever the tray of a removable device is moved by the guest
+or by HMP/QMP commands.
+
+Data:
+
+- "device": device name (json-string)
+- "tray-open": true if the tray has been opened or false if it has been closed
+               (json-bool)
+
+{ "event": "DEVICE_TRAY_MOVED",
+  "data": { "device": "ide1-cd0",
+            "tray-open": true
+  },
+  "timestamp": { "seconds": 1265044230, "microseconds": 450486 } }
+
 RESET
 -----
 
diff --git a/block.c b/block.c
index bfb0dec..e27d528 100644
--- a/block.c
+++ b/block.c
@@ -972,10 +972,30 @@ void bdrv_emit_qmp_error_event(const BlockDriverState *bdrv,
     qobject_decref(data);
 }
 
+static void bdrv_emit_qmp_eject_event(BlockDriverState *bs, bool ejected)
+{
+    QObject *data;
+
+    data = qobject_from_jsonf("{ 'device': %s, 'tray-open': %i }",
+                              bdrv_get_device_name(bs), ejected);
+    monitor_protocol_event(QEVENT_DEVICE_TRAY_MOVED, data);
+
+    qobject_decref(data);
+}
+
 static void bdrv_dev_change_media_cb(BlockDriverState *bs, bool load)
 {
     if (bs->dev_ops && bs->dev_ops->change_media_cb) {
+        bool tray_was_closed = !bdrv_dev_is_tray_open(bs);
         bs->dev_ops->change_media_cb(bs->dev_opaque, load);
+        if (tray_was_closed) {
+            /* tray open */
+            bdrv_emit_qmp_eject_event(bs, true);
+        }
+        if (load) {
+            /* tray close */
+            bdrv_emit_qmp_eject_event(bs, false);
+        }
     }
 }
 
@@ -3616,6 +3636,10 @@ void bdrv_eject(BlockDriverState *bs, bool eject_flag)
     if (drv && drv->bdrv_eject) {
         drv->bdrv_eject(bs, eject_flag);
     }
+
+    if (bs->device_name[0] != '\0') {
+        bdrv_emit_qmp_eject_event(bs, eject_flag);
+    }
 }
 
 /**
diff --git a/monitor.c b/monitor.c
index 0d4daad..03beab3 100644
--- a/monitor.c
+++ b/monitor.c
@@ -485,6 +485,9 @@ void monitor_protocol_event(MonitorEvent event, QObject *data)
         case QEVENT_BLOCK_JOB_CANCELLED:
             event_name = "BLOCK_JOB_CANCELLED";
             break;
+        case QEVENT_DEVICE_TRAY_MOVED:
+             event_name = "DEVICE_TRAY_MOVED";
+            break;
         default:
             abort();
             break;
diff --git a/monitor.h b/monitor.h
index b72ea07..b6f700f 100644
--- a/monitor.h
+++ b/monitor.h
@@ -38,6 +38,7 @@ typedef enum MonitorEvent {
     QEVENT_SPICE_DISCONNECTED,
     QEVENT_BLOCK_JOB_COMPLETED,
     QEVENT_BLOCK_JOB_CANCELLED,
+    QEVENT_DEVICE_TRAY_MOVED,
     QEVENT_MAX,
 } MonitorEvent;
 
-- 
1.7.9.111.gf3fb0.dirty

Re: [Qemu-devel] [PULL 0/5]: QMP queue

[Anthony Liguori]

On 02/23/2012 08:42 AM, Luiz Capitulino wrote:
> Contains only the DEVICE_TRAY_MOVED event series.
>
> The changes (since 235fe3bfd46b1104575b540d0bc3fdf584030b99) are available
> in the following repository:
>
>      git://repo.or.cz/qemu/qmp-unstable.git queue/qmp

Pulled.  Thanks.

Regards,

Anthony Liguori

>
> Luiz Capitulino (5):
>        block: Rename bdrv_mon_event()&  BlockMonEventAction
>        block: bdrv_eject(): Make eject_flag a real bool
>        block: Don't call bdrv_eject() if the tray state didn't change
>        ide: drop ide_tray_state_post_load()
>        qmp: add DEVICE_TRAY_MOVED event
>
>   QMP/qmp-events.txt |   18 +++++++++++
>   block.c            |   84 +++++++++++++++++++++++++++++++++------------------
>   block.h            |    8 ++--
>   block/raw-posix.c  |    6 ++--
>   block/raw.c        |    2 +-
>   block_int.h        |    2 +-
>   hw/ide/atapi.c     |    7 +++-
>   hw/ide/core.c      |   16 ++--------
>   hw/scsi-disk.c     |   13 +++++---
>   hw/virtio-blk.c    |    6 ++--
>   monitor.c          |    3 ++
>   monitor.h          |    1 +
>   12 files changed, 104 insertions(+), 62 deletions(-)
>
>
>