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(parent: 72d9196) | patch
virtio: guard against NULL pfn
authorJason Wang <[email protected]>
Wed, 15 Mar 2017 11:48:30 +0000 (19:48 +0800)
committerMichael S. Tsirkin <[email protected]>
Wed, 15 Mar 2017 17:37:19 +0000 (19:37 +0200)
commit168e4af3c129534ee7d81edc238a9aa9ca0dd474
tree67bd6c94fe914748aa4a3fc9b32dad611fafbb07tree | snapshot
parent72d9196f1ef588c19821d0a4fb563836fdb2a0b7commit | diff
virtio: guard against NULL pfn

To avoid access stale memory region cache after reset, this patch
check the existence of virtqueue pfn for all exported virtqueue access
helpers before trying to use them.

Cc: Cornelia Huck <[email protected]>
Cc: Paolo Bonzini <[email protected]>
Reviewed-by: Cornelia Huck <[email protected]>
Signed-off-by: Jason Wang <[email protected]>
Reviewed-by: Michael S. Tsirkin <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>
hw/virtio/virtio.c diff | blob | blame | history
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