From: Wei Xu <w...@redhat.com>
Redefine packed ring structure according to Qemu nomenclature,
field data(wrap counter, etc) are introduced also.
Signed-off-by: Wei Xu <w...@redhat.com>
---
hw/virtio/virtio.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index 4136d23..a8e737c 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;
@@ -77,6 +84,11 @@ typedef struct VRing
VRingMemoryRegionCaches *caches;
} VRing;
+typedef struct VRingPackedDescEvent {
+ uint16_t off_wrap;
+ uint16_t flags;
+} VRingPackedDescEvent ;
+
struct VirtQueue
{
VRing vring;
@@ -87,7 +99,11 @@ struct VirtQueue
/* Last avail_idx read from VQ. */
uint16_t shadow_avail_idx;
+ bool event_wrap_counter;
+ bool avail_wrap_counter;
+
uint16_t used_idx;
+ bool used_wrap_counter;
/* Last used index value we have signalled on */
uint16_t signalled_used;
--
1.8.3.1
