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[Qemu-devel] [PATCH 02/10] virtio-blk: Fix migration of queued requests
From: |
Kevin Wolf |
Subject: |
[Qemu-devel] [PATCH 02/10] virtio-blk: Fix migration of queued requests |
Date: |
Mon, 30 Aug 2010 18:32:25 +0200 |
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 <address@hidden>
---
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 c3a7343..395eb9a 100644
--- a/hw/virtio-blk.c
+++ b/hw/virtio-blk.c
@@ -481,6 +481,11 @@ 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;
--
1.7.2.2
- [Qemu-devel] [PULL 00/10] Block patches, Kevin Wolf, 2010/08/30
- [Qemu-devel] [PATCH 08/10] posix-aio-compat: Fix async_conmtext for ioctl, Kevin Wolf, 2010/08/30
- [Qemu-devel] [PATCH 03/10] block: Fix image re-open in bdrv_commit, Kevin Wolf, 2010/08/30
- [Qemu-devel] [PATCH 10/10] savevm: Generate a name when run without one, Kevin Wolf, 2010/08/30
- [Qemu-devel] [PATCH 07/10] nbd: Introduce NBD named exports., Kevin Wolf, 2010/08/30
- [Qemu-devel] [PATCH 01/10] virtio: Factor virtqueue_map_sg out, Kevin Wolf, 2010/08/30
- [Qemu-devel] [PATCH 05/10] qemu-img rebase: Open new backing file read-only, Kevin Wolf, 2010/08/30
- [Qemu-devel] [PATCH 04/10] sheepdog: remove unnecessary includes, Kevin Wolf, 2010/08/30
- [Qemu-devel] [PATCH 09/10] monitor: make 'info snapshots' show only fully available snapshots, Kevin Wolf, 2010/08/30
- [Qemu-devel] [PATCH 02/10] virtio-blk: Fix migration of queued requests,
Kevin Wolf <=
- [Qemu-devel] [PATCH 06/10] vvfat: fat_chksum(): fix access above array bounds, Kevin Wolf, 2010/08/30