Commit 3cdf8473 authored by Stefan Hajnoczi's avatar Stefan Hajnoczi Committed by Michael S. Tsirkin
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virtio: invalidate memory in vring_set_avail_event() 



Remember to invalidate the avail event field so the memory pages are
marked dirty.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: default avatarStefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: default avatarMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
Tested-by: default avatarEric Auger <eric.auger@redhat.com>
parent 34c6bf22

hw/virtio/virtio.c

+1 −0
Original line number Diff line number Diff line
@@ -282,6 +282,7 @@ static inline void vring_set_avail_event(VirtQueue *vq, uint16_t val) 
    caches = atomic_rcu_read(&vq->vring.caches);

    pa = offsetof(VRingUsed, ring[vq->vring.num]);

    virtio_stw_phys_cached(vq->vdev, &caches->used, pa, val);

    address_space_cache_invalidate(&caches->used, pa, sizeof(val));

}



void virtio_queue_set_notification(VirtQueue *vq, int enable)