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[Qemu-commits] [qemu/qemu] bccdef: virtio: recalculate vq->inuse after m
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[Qemu-commits] [qemu/qemu] bccdef: virtio: recalculate vq->inuse after migration |
Date: |
Wed, 24 Aug 2016 12:30:04 -0700 |
Branch: refs/heads/master
Home: https://github.com/qemu/qemu
Commit: bccdef6b1a204db0f41ffb6e24ce373e4d7890d4
https://github.com/qemu/qemu/commit/bccdef6b1a204db0f41ffb6e24ce373e4d7890d4
Author: Stefan Hajnoczi <address@hidden>
Date: 2016-08-23 (Tue, 23 Aug 2016)
Changed paths:
M hw/virtio/virtio.c
Log Message:
-----------
virtio: recalculate vq->inuse after migration
The vq->inuse field is not migrated. Many devices don't hold
VirtQueueElements across migration so it doesn't matter that vq->inuse
starts at 0 on the destination QEMU.
At least virtio-serial, virtio-blk, and virtio-balloon migrate while
holding VirtQueueElements. For these devices we need to recalculate
vq->inuse upon load so the value is correct.
Cc: address@hidden
Signed-off-by: Stefan Hajnoczi <address@hidden>
Reviewed-by: Michael S. Tsirkin <address@hidden>
Reviewed-by: Cornelia Huck <address@hidden>
Reviewed-by: Michael S. Tsirkin <address@hidden>
Signed-off-by: Michael S. Tsirkin <address@hidden>
Commit: 58a83c61496eeb0d31571a07a51bc1947e3379ac
https://github.com/qemu/qemu/commit/58a83c61496eeb0d31571a07a51bc1947e3379ac
Author: Stefan Hajnoczi <address@hidden>
Date: 2016-08-23 (Tue, 23 Aug 2016)
Changed paths:
M hw/virtio/virtio.c
Log Message:
-----------
virtio: decrement vq->inuse in virtqueue_discard()
virtqueue_discard() moves vq->last_avail_idx back so the element can be
popped again. It's necessary to decrement vq->inuse to avoid "leaking"
the element count.
Cc: address@hidden
Signed-off-by: Stefan Hajnoczi <address@hidden>
Reviewed-by: Michael S. Tsirkin <address@hidden>
Reviewed-by: Cornelia Huck <address@hidden>
Reviewed-by: Michael S. Tsirkin <address@hidden>
Signed-off-by: Michael S. Tsirkin <address@hidden>
Commit: e00da552a0dc82f4ec7896281eada7201e69f1db
https://github.com/qemu/qemu/commit/e00da552a0dc82f4ec7896281eada7201e69f1db
Author: Peter Maydell <address@hidden>
Date: 2016-08-24 (Wed, 24 Aug 2016)
Changed paths:
M hw/virtio/virtio.c
Log Message:
-----------
Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
virtio: fixes
some bugfixes for virtio
balloon is still broken wrt migration
Signed-off-by: Michael S. Tsirkin <address@hidden>
# gpg: Signature made Tue 23 Aug 2016 17:33:11 BST
# gpg: using RSA key 0x281F0DB8D28D5469
# gpg: Good signature from "Michael S. Tsirkin <address@hidden>"
# gpg: aka "Michael S. Tsirkin <address@hidden>"
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17 0970 C350 3912 AFBE 8E67
# Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA 8A0D 281F 0DB8 D28D 5469
* remotes/mst/tags/for_upstream:
virtio: decrement vq->inuse in virtqueue_discard()
virtio: recalculate vq->inuse after migration
Signed-off-by: Peter Maydell <address@hidden>
Compare: https://github.com/qemu/qemu/compare/8c1c230a6e94...e00da552a0dc
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