From: Wei Xu
Define packed ring structure according to Qemu nomenclature,
field data(wrap counter, etc) are also included.
Signed-off-by: Wei Xu
Signed-off-by: Jason Wang
---
hw/virtio/virtio.c | 15 +++
1 file changed, 15 insertions(+)
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index a94ea18a9c..981738fa19 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -39,6 +39,13 @@ typedef struct VRingDesc
uint16_t next;
} VRingDesc;
+typedef struct VRingPackedDesc {
+uint64_t addr;
+uint32_t len;
+uint16_t id;
+uint16_t flags;
+} VRingPackedDesc;
+
typedef struct VRingAvail
{
uint16_t flags;
@@ -77,17 +84,25 @@ typedef struct VRing
VRingMemoryRegionCaches *caches;
} VRing;
+typedef struct VRingPackedDescEvent {
+uint16_t off_wrap;
+uint16_t flags;
+} VRingPackedDescEvent ;
+
struct VirtQueue
{
VRing vring;
/* Next head to pop */
uint16_t last_avail_idx;
+bool last_avail_wrap_counter;
/* Last avail_idx read from VQ. */
uint16_t shadow_avail_idx;
+bool shadow_avail_wrap_counter;
uint16_t used_idx;
+bool used_wrap_counter;
/* Last used index value we have signalled on */
uint16_t signalled_used;
--
2.18.1
