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600f5ce356
We must check for new virtqueue buffers after re-enabling notifications. This prevents the race condition where the guest added buffers just after we stopped popping the virtqueue but before we re-enabled notifications. I think the virtio-crypto code was based on virtio-net but this crucial detail was missed. virtio-net does not have the race condition because it processes the virtqueue one more time after re-enabling notifications. Cc: Gonglei <arei.gonglei@huawei.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Tested-by: Alexey Kardashevskiy <aik@ozlabs.ru> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Gonglei <arei.gonglei@huawei.com> |
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| .. | ||
| Makefile.objs | ||
| trace-events | ||
| vhost-backend.c | ||
| vhost-user.c | ||
| vhost-vsock.c | ||
| vhost.c | ||
| virtio-balloon.c | ||
| virtio-bus.c | ||
| virtio-crypto-pci.c | ||
| virtio-crypto.c | ||
| virtio-mmio.c | ||
| virtio-pci.c | ||
| virtio-pci.h | ||
| virtio-rng.c | ||
| virtio.c | ||