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qemu/include/hw/virtio
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Pavel Butsykin 55289fb036 virtio-serial: add enable_backend callback 
We should guarantee that RAM will not be modified while VM has a stopped
state, otherwise it can lead to negative consequences during post-copy
migration. In RUN_STATE_FINISH_MIGRATE step, it's expected that RAM on
source side will not be modified as this could lead to non-consistent vm state
on the destination side. Also RAM access during postcopy-ram migration with
enabled release-ram capability can lead to sad consequences.

Let's add enable_backend() callback to avoid undesirable virtioqueue changes
in the guest memory.

Signed-off-by: Pavel Butsykin <pbutsykin@virtuozzo.com>
Message-Id: <20170919120733.22020-1-pbutsykin@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-09-21 11:51:49 +02:00
..
vhost-backend.h vhost: rework IOTLB messaging 2017-06-02 18:57:17 +03:00
vhost-scsi-common.h vhost-scsi: create a vhost-scsi-common abstraction 2017-05-05 12:10:00 +02:00
vhost-scsi.h vhost-scsi: create a vhost-scsi-common abstraction 2017-05-05 12:10:00 +02:00
vhost-user-scsi.h vhost-user-scsi: Introduce vhost-user-scsi host device 2017-06-15 11:18:40 +02:00
vhost-vsock.h vhost-vsock: add virtio sockets device 2016-09-10 00:28:08 +03:00
vhost.h vhost: propagate errors in vhost_device_iotlb_miss() 2017-06-02 18:57:17 +03:00
virtio-access.h virtio: add virtio_*_phys_cached 2017-02-17 21:52:30 +02:00
virtio-balloon.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
virtio-blk.h virtio: Report real progress in VQ aio poll handler 2017-02-17 21:52:30 +02:00
virtio-bus.h virtio: convert to use DMA api 2017-01-10 05:56:58 +02:00
virtio-crypto.h virtio-crypto: using bh to handle dataq's requests 2016-11-01 19:21:08 +02:00
virtio-gpu.h virtio-gpu: move virtio_gpu_gl_block 2017-05-12 12:02:48 +02:00
virtio-input.h virtio-input: fix eventq batching 2017-03-27 12:14:45 +02:00
virtio-net.h virtio-net: enable configurable tx queue size 2017-07-03 22:29:48 +03:00
virtio-rng.h virtio-rng: stop virtqueue while the CPU is stopped 2017-04-21 12:25:40 +02:00
virtio-scsi.h virtio-scsi: Add virtqueue_size parameter allowing virtqueue size to be set. 2017-09-19 14:09:11 +02:00
virtio-serial.h virtio-serial: add enable_backend callback 2017-09-21 11:51:49 +02:00
virtio.h virtio_net: Bypass backends for MTU feature negotiation 2017-05-25 21:25:28 +03:00