aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--block.c21
-rw-r--r--docs/qmp/qmp-events.txt2
-rw-r--r--stubs/vm-stop.c7
3 files changed, 26 insertions, 4 deletions
diff --git a/block.c b/block.c
index 43abe96db6..ff44e76c87 100644
--- a/block.c
+++ b/block.c
@@ -3626,10 +3626,27 @@ void bdrv_error_action(BlockDriverState *bs, BlockErrorAction action,
bool is_read, int error)
{
assert(error >= 0);
- bdrv_emit_qmp_error_event(bs, QEVENT_BLOCK_IO_ERROR, action, is_read);
+
if (action == BDRV_ACTION_STOP) {
- vm_stop(RUN_STATE_IO_ERROR);
+ /* First set the iostatus, so that "info block" returns an iostatus
+ * that matches the events raised so far (an additional error iostatus
+ * is fine, but not a lost one).
+ */
bdrv_iostatus_set_err(bs, error);
+
+ /* Then raise the request to stop the VM and the event.
+ * qemu_system_vmstop_request_prepare has two effects. First,
+ * it ensures that the STOP event always comes after the
+ * BLOCK_IO_ERROR event. Second, it ensures that even if management
+ * can observe the STOP event and do a "cont" before the STOP
+ * event is issued, the VM will not stop. In this case, vm_start()
+ * also ensures that the STOP/RESUME pair of events is emitted.
+ */
+ qemu_system_vmstop_request_prepare();
+ bdrv_emit_qmp_error_event(bs, QEVENT_BLOCK_IO_ERROR, action, is_read);
+ qemu_system_vmstop_request(RUN_STATE_IO_ERROR);
+ } else {
+ bdrv_emit_qmp_error_event(bs, QEVENT_BLOCK_IO_ERROR, action, is_read);
}
}
diff --git a/docs/qmp/qmp-events.txt b/docs/qmp/qmp-events.txt
index 019db53ec8..22fea580a9 100644
--- a/docs/qmp/qmp-events.txt
+++ b/docs/qmp/qmp-events.txt
@@ -62,7 +62,7 @@ Data:
- "action": action that has been taken, it's one of the following (json-string):
"ignore": error has been ignored
"report": error has been reported to the device
- "stop": error caused VM to be stopped
+ "stop": the VM is going to stop because of the error
Example:
diff --git a/stubs/vm-stop.c b/stubs/vm-stop.c
index f82c897dfe..69fd86b2e8 100644
--- a/stubs/vm-stop.c
+++ b/stubs/vm-stop.c
@@ -1,7 +1,12 @@
#include "qemu-common.h"
#include "sysemu/sysemu.h"
-int vm_stop(RunState state)
+void qemu_system_vmstop_request_prepare(void)
+{
+ abort();
+}
+
+void qemu_system_vmstop_request(RunState state)
{
abort();
}