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| author | Rafael David Tinoco <rafael.tinoco@canonical.com> | 2016-10-24 15:35:03 +0000 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2016-11-15 17:20:37 +0200 |
| commit | 0d34fbabc13891da41582b0823867dc5733fffef (patch) | |
| tree | 9a73301710d2f8495da0dc9cf5af2f15daf097f7 | |
| parent | 2a083ffd2e37ef08769749a5c7cfc6ca65c9f8ea (diff) | |
| download | qemu-0d34fbabc13891da41582b0823867dc5733fffef.zip qemu-0d34fbabc13891da41582b0823867dc5733fffef.tar.gz qemu-0d34fbabc13891da41582b0823867dc5733fffef.tar.bz2 | |
vhost: migration blocker only if shared log is used
Commit 31190ed7 added a migration blocker in vhost_dev_init() to
check if memfd would succeed. It is better if this blocker first
checks if vhost backend requires shared log. This will avoid a
situation where a blocker is added inappropriately (e.g. shared
log allocation fails when vhost backend doesn't support it).
Signed-off-by: Rafael David Tinoco <rafael.tinoco@canonical.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| -rw-r--r-- | hw/virtio/vhost.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c index 131f164..25bf67f 100644 --- a/hw/virtio/vhost.c +++ b/hw/virtio/vhost.c @@ -1122,7 +1122,7 @@ int vhost_dev_init(struct vhost_dev *hdev, void *opaque, if (!(hdev->features & (0x1ULL << VHOST_F_LOG_ALL))) { error_setg(&hdev->migration_blocker, "Migration disabled: vhost lacks VHOST_F_LOG_ALL feature."); - } else if (!qemu_memfd_check()) { + } else if (vhost_dev_log_is_shared(hdev) && !qemu_memfd_check()) { error_setg(&hdev->migration_blocker, "Migration disabled: failed to allocate shared memory"); } |