From patchwork Tue Aug 3 15:01:12 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [2/2] virtio-blk: Fix migration of queued requests Date: Tue, 03 Aug 2010 05:01:12 -0000 From: Kevin Wolf X-Patchwork-Id: 60766 Message-Id: <1280847672-28701-3-git-send-email-kwolf@redhat.com> To: qemu-devel@nongnu.org Cc: kwolf@redhat.com in_sg[].iovec and out_sg[].ioved are pointer to (source) host memory and therefore invalid after migration. When loading the device state we must create a new mapping on the destination host. Signed-off-by: Kevin Wolf --- hw/virtio-blk.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/hw/virtio-blk.c b/hw/virtio-blk.c index 490cd41..251779c 100644 --- a/hw/virtio-blk.c +++ b/hw/virtio-blk.c @@ -480,6 +480,11 @@ static int virtio_blk_load(QEMUFile *f, void *opaque, int version_id) qemu_get_buffer(f, (unsigned char*)&req->elem, sizeof(req->elem)); req->next = s->rq; s->rq = req; + + virtqueue_map_sg(req->elem.in_sg, req->elem.in_addr, + req->elem.in_num, 1); + virtqueue_map_sg(req->elem.out_sg, req->elem.out_addr, + req->elem.out_num, 0); } return 0;