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[Qemu-devel] [PATCH] vhost: Cancel migration when vhost-user process res
From: |
fangying |
Subject: |
[Qemu-devel] [PATCH] vhost: Cancel migration when vhost-user process restarted during migration |
Date: |
Wed, 15 Nov 2017 14:57:35 +0800 |
From: Ying Fang<address@hidden>
QEMU will abort when vhost-user process is restarted during migration when
vhost_log_global_start/stop is called. The reason is clear that
vhost_dev_set_log returns -1 because network connection is temporarily lost.
To handle this situation, let's cancel migration and report it to user.
Signed-off-by: Ying Fang <address@hidden>
---
hw/virtio/vhost.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c
index ddc42f0..f409b06 100644
--- a/hw/virtio/vhost.c
+++ b/hw/virtio/vhost.c
@@ -27,6 +27,7 @@
#include "hw/virtio/virtio-access.h"
#include "migration/blocker.h"
#include "sysemu/dma.h"
+#include "qmp-commands.h"
/* enabled until disconnected backend stabilizes */
#define _VHOST_DEBUG 1
@@ -882,20 +883,24 @@ static int vhost_migration_log(MemoryListener *listener,
int enable)
static void vhost_log_global_start(MemoryListener *listener)
{
int r;
+ Error *errp = NULL;
r = vhost_migration_log(listener, true);
if (r < 0) {
- abort();
+ error_setg(errp, "Failed to start vhost migration log");
+ qmp_migrate_cancel(&errp);
}
}
static void vhost_log_global_stop(MemoryListener *listener)
{
int r;
+ Error *errp = NULL;
r = vhost_migration_log(listener, false);
if (r < 0) {
- abort();
+ error_setg(errp, "Failed to stop vhost migration log");
+ qmp_migrate_cancel(&errp);
}
}
--
2.10.0.windows.1
- [Qemu-devel] [PATCH] vhost: Cancel migration when vhost-user process restarted during migration,
fangying <=