diff options
Diffstat (limited to 'hw/virtio/virtio.c')
-rw-r--r-- | hw/virtio/virtio.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c index 4577f3f5b3..d3a22e3d36 100644 --- a/hw/virtio/virtio.c +++ b/hw/virtio/virtio.c @@ -1071,10 +1071,12 @@ static void virtqueue_split_get_avail_bytes(VirtQueue *vq, VirtIODevice *vdev = vq->vdev; unsigned int idx; unsigned int total_bufs, in_total, out_total; - MemoryRegionCache indirect_desc_cache = MEMORY_REGION_CACHE_INVALID; + MemoryRegionCache indirect_desc_cache; int64_t len = 0; int rc; + address_space_cache_init_empty(&indirect_desc_cache); + idx = vq->last_avail_idx; total_bufs = in_total = out_total = 0; @@ -1207,12 +1209,14 @@ static void virtqueue_packed_get_avail_bytes(VirtQueue *vq, VirtIODevice *vdev = vq->vdev; unsigned int idx; unsigned int total_bufs, in_total, out_total; + MemoryRegionCache indirect_desc_cache; MemoryRegionCache *desc_cache; - MemoryRegionCache indirect_desc_cache = MEMORY_REGION_CACHE_INVALID; int64_t len = 0; VRingPackedDesc desc; bool wrap_counter; + address_space_cache_init_empty(&indirect_desc_cache); + idx = vq->last_avail_idx; wrap_counter = vq->last_avail_wrap_counter; total_bufs = in_total = out_total = 0; @@ -1487,7 +1491,7 @@ static void *virtqueue_split_pop(VirtQueue *vq, size_t sz) { unsigned int i, head, max; VRingMemoryRegionCaches *caches; - MemoryRegionCache indirect_desc_cache = MEMORY_REGION_CACHE_INVALID; + MemoryRegionCache indirect_desc_cache; MemoryRegionCache *desc_cache; int64_t len; VirtIODevice *vdev = vq->vdev; @@ -1498,6 +1502,8 @@ static void *virtqueue_split_pop(VirtQueue *vq, size_t sz) VRingDesc desc; int rc; + address_space_cache_init_empty(&indirect_desc_cache); + RCU_READ_LOCK_GUARD(); if (virtio_queue_empty_rcu(vq)) { goto done; @@ -1624,7 +1630,7 @@ static void *virtqueue_packed_pop(VirtQueue *vq, size_t sz) { unsigned int i, max; VRingMemoryRegionCaches *caches; - MemoryRegionCache indirect_desc_cache = MEMORY_REGION_CACHE_INVALID; + MemoryRegionCache indirect_desc_cache; MemoryRegionCache *desc_cache; int64_t len; VirtIODevice *vdev = vq->vdev; @@ -1636,6 +1642,8 @@ static void *virtqueue_packed_pop(VirtQueue *vq, size_t sz) uint16_t id; int rc; + address_space_cache_init_empty(&indirect_desc_cache); + RCU_READ_LOCK_GUARD(); if (virtio_queue_packed_empty_rcu(vq)) { goto done; @@ -3970,13 +3978,15 @@ VirtioQueueElement *qmp_x_query_virtio_queue_element(const char *path, } else { unsigned int head, i, max; VRingMemoryRegionCaches *caches; - MemoryRegionCache indirect_desc_cache = MEMORY_REGION_CACHE_INVALID; + MemoryRegionCache indirect_desc_cache; MemoryRegionCache *desc_cache; VRingDesc desc; VirtioRingDescList *list = NULL; VirtioRingDescList *node; int rc; int ndescs; + address_space_cache_init_empty(&indirect_desc_cache); + RCU_READ_LOCK_GUARD(); max = vq->vring.num; |