[Qemu-devel] [PATCH V5 0/6] Packed virtqueue for virtrio

[Qemu-devel] [PATCH V5 0/6] Packed virtqueue for virtrio

[Jason Wang]

Hi:

This is an updated version of packed virtqueue support based on Wei's
V4. Tested with, virtio-blk, virito-net (with vhost_net), virtio-scsi, scp
during migration etc.

Please review.

Changes from V4:

- using SET/GET_VRING_BASE to set/get last_used_idx/wrap_counter
- fix virtqueue_pop_packed() to break virtio-scsi
- memory barriers fix
- add missing functions for packed virtqueue
- various refactoring and tweaks

Jason Wang (4):
  virtio: basic packed virtqueue support
  virtio: event suppression support for packed ring
  vhost_net: enable packed ring support
  virtio: add property to enable packed virtqueue

Wei Xu (2):
  virtio: basic structure for packed ring
  virtio: device/driverr area size calculation refactor for split ring

 hw/block/virtio-blk.c       |    2 +-
 hw/char/virtio-serial-bus.c |    2 +-
 hw/net/vhost_net.c          |    2 +
 hw/scsi/virtio-scsi.c       |    3 +-
 hw/virtio/virtio.c          | 1151 +++++++++++++++++++++++++++++++----
 include/hw/virtio/virtio.h  |   14 +-
 6 files changed, 1039 insertions(+), 135 deletions(-)

-- 
2.18.1

[Qemu-devel] [PATCH V5 1/6] virtio: basic structure for packed ring

[Jason Wang]

From: Wei Xu <wexu@redhat.com>

Define packed ring structure according to Qemu nomenclature,
field data(wrap counter, etc) are also included.

Signed-off-by: Wei Xu <wexu@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
---
 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

Re: [Qemu-devel] [PATCH V5 1/6] virtio: basic structure for packed ring

[Jens Freimann]

On Fri, Aug 02, 2019 at 12:06:01AM -0400, Jason Wang wrote:
>From: Wei Xu <wexu@redhat.com>
>
>Define packed ring structure according to Qemu nomenclature,
>field data(wrap counter, etc) are also included.
>
>Signed-off-by: Wei Xu <wexu@redhat.com>
>Signed-off-by: Jason Wang <jasowang@redhat.com>
>---
> hw/virtio/virtio.c | 15 +++++++++++++++
> 1 file changed, 15 insertions(+)
>

Reviewed-by: Jens Freimann <jfreimann@redhat.com>

[Qemu-devel] [PATCH V5 2/6] virtio: device/driverr area size calculation refactor for split ring

[Jason Wang]

From: Wei Xu <wexu@redhat.com>

There is slight size difference between split/packed rings.

This is the refactor of split ring as well as a helper to expanding
device and driver area size calculation for packed ring.

Signed-off-by: Wei Xu <wexu@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
---
 hw/virtio/virtio.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index 981738fa19..ac21ab43e2 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -155,10 +155,8 @@ static void virtio_init_region_cache(VirtIODevice *vdev, int n)
     VRingMemoryRegionCaches *old = vq->vring.caches;
     VRingMemoryRegionCaches *new = NULL;
     hwaddr addr, size;
-    int event_size;
     int64_t len;
 
-    event_size = virtio_vdev_has_feature(vq->vdev, VIRTIO_RING_F_EVENT_IDX) ? 2 : 0;
 
     addr = vq->vring.desc;
     if (!addr) {
@@ -173,7 +171,7 @@ static void virtio_init_region_cache(VirtIODevice *vdev, int n)
         goto err_desc;
     }
 
-    size = virtio_queue_get_used_size(vdev, n) + event_size;
+    size = virtio_queue_get_used_size(vdev, n);
     len = address_space_cache_init(&new->used, vdev->dma_as,
                                    vq->vring.used, size, true);
     if (len < size) {
@@ -181,7 +179,7 @@ static void virtio_init_region_cache(VirtIODevice *vdev, int n)
         goto err_used;
     }
 
-    size = virtio_queue_get_avail_size(vdev, n) + event_size;
+    size = virtio_queue_get_avail_size(vdev, n);
     len = address_space_cache_init(&new->avail, vdev->dma_as,
                                    vq->vring.avail, size, false);
     if (len < size) {
@@ -2410,14 +2408,20 @@ hwaddr virtio_queue_get_desc_size(VirtIODevice *vdev, int n)
 
 hwaddr virtio_queue_get_avail_size(VirtIODevice *vdev, int n)
 {
+    int s;
+
+    s = virtio_vdev_has_feature(vdev, VIRTIO_RING_F_EVENT_IDX) ? 2 : 0;
     return offsetof(VRingAvail, ring) +
-        sizeof(uint16_t) * vdev->vq[n].vring.num;
+        sizeof(uint16_t) * vdev->vq[n].vring.num + s;
 }
 
 hwaddr virtio_queue_get_used_size(VirtIODevice *vdev, int n)
 {
+    int s;
+
+    s = virtio_vdev_has_feature(vdev, VIRTIO_RING_F_EVENT_IDX) ? 2 : 0;
     return offsetof(VRingUsed, ring) +
-        sizeof(VRingUsedElem) * vdev->vq[n].vring.num;
+        sizeof(VRingUsedElem) * vdev->vq[n].vring.num + s;
 }
 
 uint16_t virtio_queue_get_last_avail_idx(VirtIODevice *vdev, int n)
-- 
2.18.1

Re: [Qemu-devel] [PATCH V5 2/6] virtio: device/driverr area size calculation refactor for split ring

[Jens Freimann]

In subject s/driverr/driver


On Fri, Aug 02, 2019 at 12:06:02AM -0400, Jason Wang wrote:
>From: Wei Xu <wexu@redhat.com>
>
>There is slight size difference between split/packed rings.
>
>This is the refactor of split ring as well as a helper to expanding
>device and driver area size calculation for packed ring.
>
>Signed-off-by: Wei Xu <wexu@redhat.com>
>Signed-off-by: Jason Wang <jasowang@redhat.com>
>---
> hw/virtio/virtio.c | 16 ++++++++++------
> 1 file changed, 10 insertions(+), 6 deletions(-)
>

Reviewed-by: Jens Freimann <jfreimann@redhat.com>

Re: [Qemu-devel] [PATCH V5 2/6] virtio: device/driverr area size calculation refactor for split ring

[Jason Wang]

On 2019/8/2 下午5:03, Jens Freimann wrote:
> In subject s/driverr/driver
>

Right, let me fix.

Thanks


>
> On Fri, Aug 02, 2019 at 12:06:02AM -0400, Jason Wang wrote:
>> From: Wei Xu <wexu@redhat.com>
>>
>> There is slight size difference between split/packed rings.
>>
>> This is the refactor of split ring as well as a helper to expanding
>> device and driver area size calculation for packed ring.
>>
>> Signed-off-by: Wei Xu <wexu@redhat.com>
>> Signed-off-by: Jason Wang <jasowang@redhat.com>
>> ---
>> hw/virtio/virtio.c | 16 ++++++++++------
>> 1 file changed, 10 insertions(+), 6 deletions(-)
>>
>
> Reviewed-by: Jens Freimann <jfreimann@redhat.com>
>
>
>

[Qemu-devel] [PATCH V5 3/6] virtio: basic packed virtqueue support

[Jason Wang]

This patch implements basic support for the packed virtqueue. Compare
the split virtqueue which has three rings, packed virtqueue only have
one which is supposed to have better cache utilization and more
hardware friendly.

Please refer virtio specification for more information.

Signed-off-by: Wei Xu <wexu@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
---
 hw/block/virtio-blk.c       |   2 +-
 hw/char/virtio-serial-bus.c |   2 +-
 hw/scsi/virtio-scsi.c       |   3 +-
 hw/virtio/virtio.c          | 900 +++++++++++++++++++++++++++++++++---
 include/hw/virtio/virtio.h  |  10 +-
 5 files changed, 837 insertions(+), 80 deletions(-)

diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c
index cbb3729158..122d9fd6f1 100644
--- a/hw/block/virtio-blk.c
+++ b/hw/block/virtio-blk.c
@@ -1047,7 +1047,7 @@ static void virtio_blk_save_device(VirtIODevice *vdev, QEMUFile *f)
             qemu_put_be32(f, virtio_get_queue_index(req->vq));
         }
 
-        qemu_put_virtqueue_element(f, &req->elem);
+        qemu_put_virtqueue_element(vdev, f, &req->elem);
         req = req->next;
     }
     qemu_put_sbyte(f, 0);
diff --git a/hw/char/virtio-serial-bus.c b/hw/char/virtio-serial-bus.c
index f7a54f261b..d0d861386c 100644
--- a/hw/char/virtio-serial-bus.c
+++ b/hw/char/virtio-serial-bus.c
@@ -705,7 +705,7 @@ static void virtio_serial_save_device(VirtIODevice *vdev, QEMUFile *f)
         if (elem_popped) {
             qemu_put_be32s(f, &port->iov_idx);
             qemu_put_be64s(f, &port->iov_offset);
-            qemu_put_virtqueue_element(f, port->elem);
+            qemu_put_virtqueue_element(vdev, f, port->elem);
         }
     }
 }
diff --git a/hw/scsi/virtio-scsi.c b/hw/scsi/virtio-scsi.c
index 8b9e5e2b49..41ea855e0a 100644
--- a/hw/scsi/virtio-scsi.c
+++ b/hw/scsi/virtio-scsi.c
@@ -188,11 +188,12 @@ static void virtio_scsi_save_request(QEMUFile *f, SCSIRequest *sreq)
 {
     VirtIOSCSIReq *req = sreq->hba_private;
     VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(req->dev);
+    VirtIODevice *vdev = VIRTIO_DEVICE(req->dev);
     uint32_t n = virtio_get_queue_index(req->vq) - 2;
 
     assert(n < vs->conf.num_queues);
     qemu_put_be32s(f, &n);
-    qemu_put_virtqueue_element(f, &req->elem);
+    qemu_put_virtqueue_element(vdev, f, &req->elem);
 }
 
 static void *virtio_scsi_load_request(QEMUFile *f, SCSIRequest *sreq)
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index ac21ab43e2..4105fe2448 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -92,6 +92,7 @@ typedef struct VRingPackedDescEvent {
 struct VirtQueue
 {
     VRing vring;
+    VirtQueueElement *used_elems;
 
     /* Next head to pop */
     uint16_t last_avail_idx;
@@ -156,6 +157,7 @@ static void virtio_init_region_cache(VirtIODevice *vdev, int n)
     VRingMemoryRegionCaches *new = NULL;
     hwaddr addr, size;
     int64_t len;
+    bool packed;
 
 
     addr = vq->vring.desc;
@@ -164,8 +166,10 @@ static void virtio_init_region_cache(VirtIODevice *vdev, int n)
     }
     new = g_new0(VRingMemoryRegionCaches, 1);
     size = virtio_queue_get_desc_size(vdev, n);
+    packed = virtio_vdev_has_feature(vq->vdev, VIRTIO_F_RING_PACKED) ?
+                                   true : false;
     len = address_space_cache_init(&new->desc, vdev->dma_as,
-                                   addr, size, false);
+                                   addr, size, packed);
     if (len < size) {
         virtio_error(vdev, "Cannot map desc");
         goto err_desc;
@@ -221,8 +225,8 @@ void virtio_queue_update_rings(VirtIODevice *vdev, int n)
 }
 
 /* Called within rcu_read_lock().  */
-static void vring_desc_read(VirtIODevice *vdev, VRingDesc *desc,
-                            MemoryRegionCache *cache, int i)
+static void vring_split_desc_read(VirtIODevice *vdev, VRingDesc *desc,
+                                  MemoryRegionCache *cache, int i)
 {
     address_space_read_cached(cache, i * sizeof(VRingDesc),
                               desc, sizeof(VRingDesc));
@@ -366,6 +370,95 @@ int virtio_queue_ready(VirtQueue *vq)
     return vq->vring.avail != 0;
 }
 
+static void vring_packed_desc_read_flags(VirtIODevice *vdev,
+                                         uint16_t *flags,
+                                         MemoryRegionCache *cache,
+                                         int i)
+{
+    address_space_read_cached(cache,
+                              i * sizeof(VRingPackedDesc) +
+                              offsetof(VRingPackedDesc, flags),
+                              flags, sizeof(*flags));
+    virtio_tswap16s(vdev, flags);
+}
+
+static void vring_packed_desc_read(VirtIODevice *vdev,
+                                   VRingPackedDesc *desc,
+                                   MemoryRegionCache *cache,
+                                   int i, bool strict_order)
+{
+    hwaddr off = i * sizeof(VRingPackedDesc);
+
+    vring_packed_desc_read_flags(vdev, &desc->flags, cache, i);
+
+    if (strict_order) {
+        /* Make sure flags is read before the rest fields. */
+        smp_rmb();
+    }
+
+    address_space_read_cached(cache, off + offsetof(VRingPackedDesc, addr),
+                              &desc->addr, sizeof(desc->addr));
+    address_space_read_cached(cache, off + offsetof(VRingPackedDesc, id),
+                              &desc->id, sizeof(desc->id));
+    address_space_read_cached(cache, off + offsetof(VRingPackedDesc, len),
+                              &desc->len, sizeof(desc->len));
+    virtio_tswap64s(vdev, &desc->addr);
+    virtio_tswap16s(vdev, &desc->id);
+    virtio_tswap32s(vdev, &desc->len);
+}
+
+static void vring_packed_desc_write_data(VirtIODevice *vdev,
+                                         VRingPackedDesc *desc,
+                                         MemoryRegionCache *cache,
+                                         int i)
+{
+    hwaddr off_id = i * sizeof(VRingPackedDesc) +
+                    offsetof(VRingPackedDesc, id);
+    hwaddr off_len = i * sizeof(VRingPackedDesc) +
+                    offsetof(VRingPackedDesc, len);
+
+    virtio_tswap32s(vdev, &desc->len);
+    virtio_tswap16s(vdev, &desc->id);
+    address_space_write_cached(cache, off_id, &desc->id, sizeof(desc->id));
+    address_space_cache_invalidate(cache, off_id, sizeof(desc->id));
+    address_space_write_cached(cache, off_len, &desc->len, sizeof(desc->len));
+    address_space_cache_invalidate(cache, off_len, sizeof(desc->len));
+}
+
+static void vring_packed_desc_write_flags(VirtIODevice *vdev,
+                                          VRingPackedDesc *desc,
+                                          MemoryRegionCache *cache,
+                                          int i)
+{
+    hwaddr off = i * sizeof(VRingPackedDesc) + offsetof(VRingPackedDesc, flags);
+
+    virtio_tswap16s(vdev, &desc->flags);
+    address_space_write_cached(cache, off, &desc->flags, sizeof(desc->flags));
+    address_space_cache_invalidate(cache, off, sizeof(desc->flags));
+}
+
+static void vring_packed_desc_write(VirtIODevice *vdev,
+                                    VRingPackedDesc *desc,
+                                    MemoryRegionCache *cache,
+                                    int i, bool strict_order)
+{
+    vring_packed_desc_write_data(vdev, desc, cache, i);
+    if (strict_order) {
+        /* Make sure data is wrote before flags. */
+        smp_wmb();
+    }
+    vring_packed_desc_write_flags(vdev, desc, cache, i);
+}
+
+static inline bool is_desc_avail(uint16_t flags, bool wrap_counter)
+{
+    bool avail, used;
+
+    avail = !!(flags & (1 << VRING_PACKED_DESC_F_AVAIL));
+    used = !!(flags & (1 << VRING_PACKED_DESC_F_USED));
+    return (avail != used) && (avail == wrap_counter);
+}
+
 /* Fetch avail_idx from VQ memory only when we really need to know if
  * guest has added some buffers.
  * Called within rcu_read_lock().  */
@@ -386,7 +479,7 @@ static int virtio_queue_empty_rcu(VirtQueue *vq)
     return vring_avail_idx(vq) == vq->last_avail_idx;
 }
 
-int virtio_queue_empty(VirtQueue *vq)
+static int virtio_queue_split_empty(VirtQueue *vq)
 {
     bool empty;
 
@@ -408,6 +501,41 @@ int virtio_queue_empty(VirtQueue *vq)
     return empty;
 }
 
+static int virtio_queue_packed_empty_rcu(VirtQueue *vq)
+{
+    struct VRingPackedDesc desc;
+    VRingMemoryRegionCaches *cache;
+
+    if (unlikely(!vq->vring.desc)) {
+        return 1;
+    }
+
+    cache = vring_get_region_caches(vq);
+    vring_packed_desc_read_flags(vq->vdev, &desc.flags, &cache->desc,
+                                 vq->last_avail_idx);
+
+    return !is_desc_avail(desc.flags, vq->last_avail_wrap_counter);
+}
+
+static int virtio_queue_packed_empty(VirtQueue *vq)
+{
+    bool empty;
+
+    rcu_read_lock();
+    empty = virtio_queue_packed_empty_rcu(vq);
+    rcu_read_unlock();
+    return empty;
+}
+
+int virtio_queue_empty(VirtQueue *vq)
+{
+    if (virtio_vdev_has_feature(vq->vdev, VIRTIO_F_RING_PACKED)) {
+        return virtio_queue_packed_empty(vq);
+    } else {
+        return virtio_queue_split_empty(vq);
+    }
+}
+
 static void virtqueue_unmap_sg(VirtQueue *vq, const VirtQueueElement *elem,
                                unsigned int len)
 {
@@ -445,10 +573,25 @@ static void virtqueue_unmap_sg(VirtQueue *vq, const VirtQueueElement *elem,
 void virtqueue_detach_element(VirtQueue *vq, const VirtQueueElement *elem,
                               unsigned int len)
 {
-    vq->inuse--;
+    vq->inuse -= elem->ndescs;
     virtqueue_unmap_sg(vq, elem, len);
 }
 
+static void virtqueue_split_rewind(VirtQueue *vq, unsigned int num)
+{
+    vq->last_avail_idx -= num;
+}
+
+static void virtqueue_packed_rewind(VirtQueue *vq, unsigned int num)
+{
+    if (vq->last_avail_idx < num) {
+        vq->last_avail_idx = vq->vring.num + vq->last_avail_idx - num;
+        vq->last_avail_wrap_counter ^= 1;
+    } else {
+        vq->last_avail_idx -= num;
+    }
+}
+
 /* virtqueue_unpop:
  * @vq: The #VirtQueue
  * @elem: The #VirtQueueElement
@@ -460,7 +603,13 @@ void virtqueue_detach_element(VirtQueue *vq, const VirtQueueElement *elem,
 void virtqueue_unpop(VirtQueue *vq, const VirtQueueElement *elem,
                      unsigned int len)
 {
-    vq->last_avail_idx--;
+
+    if (virtio_vdev_has_feature(vq->vdev, VIRTIO_F_RING_PACKED)) {
+        virtqueue_packed_rewind(vq, 1);
+    } else {
+        virtqueue_split_rewind(vq, 1);
+    }
+
     virtqueue_detach_element(vq, elem, len);
 }
 
@@ -481,25 +630,22 @@ bool virtqueue_rewind(VirtQueue *vq, unsigned int num)
     if (num > vq->inuse) {
         return false;
     }
-    vq->last_avail_idx -= num;
+
     vq->inuse -= num;
+    if (virtio_vdev_has_feature(vq->vdev, VIRTIO_F_RING_PACKED)) {
+        virtqueue_packed_rewind(vq, num);
+    } else {
+        virtqueue_split_rewind(vq, num);
+    }
     return true;
 }
 
 /* Called within rcu_read_lock().  */
-void virtqueue_fill(VirtQueue *vq, const VirtQueueElement *elem,
+static void virtqueue_split_fill(VirtQueue *vq, const VirtQueueElement *elem,
                     unsigned int len, unsigned int idx)
 {
     VRingUsedElem uelem;
 
-    trace_virtqueue_fill(vq, elem, len, idx);
-
-    virtqueue_unmap_sg(vq, elem, len);
-
-    if (unlikely(vq->vdev->broken)) {
-        return;
-    }
-
     if (unlikely(!vq->vring.used)) {
         return;
     }
@@ -511,16 +657,71 @@ void virtqueue_fill(VirtQueue *vq, const VirtQueueElement *elem,
     vring_used_write(vq, &uelem, idx);
 }
 
-/* Called within rcu_read_lock().  */
-void virtqueue_flush(VirtQueue *vq, unsigned int count)
+static void virtqueue_packed_fill(VirtQueue *vq, const VirtQueueElement *elem,
+                                  unsigned int len, unsigned int idx)
 {
-    uint16_t old, new;
+    vq->used_elems[idx].index = elem->index;
+    vq->used_elems[idx].len = len;
+    vq->used_elems[idx].ndescs = elem->ndescs;
+}
+
+static void virtqueue_packed_fill_desc(VirtQueue *vq,
+                                       const VirtQueueElement *elem,
+                                       unsigned int idx,
+                                       bool strict_order)
+{
+    uint16_t head;
+    VRingMemoryRegionCaches *caches;
+    VRingPackedDesc desc = {
+        .id = elem->index,
+        .len = elem->len,
+    };
+    bool wrap_counter = vq->used_wrap_counter;
+
+    if (unlikely(!vq->vring.desc)) {
+        return;
+    }
+
+    head = vq->used_idx + idx;
+    if (head >= vq->vring.num) {
+        head -= vq->vring.num;
+        wrap_counter ^= 1;
+    }
+    if (wrap_counter) {
+        desc.flags |= (1 << VRING_PACKED_DESC_F_AVAIL);
+        desc.flags |= (1 << VRING_PACKED_DESC_F_USED);
+    } else {
+        desc.flags &= ~(1 << VRING_PACKED_DESC_F_AVAIL);
+        desc.flags &= ~(1 << VRING_PACKED_DESC_F_USED);
+    }
+
+    caches = vring_get_region_caches(vq);
+    vring_packed_desc_write(vq->vdev, &desc, &caches->desc, head, strict_order);
+}
+
+void virtqueue_fill(VirtQueue *vq, const VirtQueueElement *elem,
+                    unsigned int len, unsigned int idx)
+{
+    trace_virtqueue_fill(vq, elem, len, idx);
+
+    virtqueue_unmap_sg(vq, elem, len);
 
     if (unlikely(vq->vdev->broken)) {
-        vq->inuse -= count;
         return;
     }
 
+    if (virtio_vdev_has_feature(vq->vdev, VIRTIO_F_RING_PACKED)) {
+        virtqueue_packed_fill(vq, elem, len, idx);
+    } else {
+        virtqueue_split_fill(vq, elem, len, idx);
+    }
+}
+
+/* Called within rcu_read_lock().  */
+static void virtqueue_split_flush(VirtQueue *vq, unsigned int count)
+{
+    uint16_t old, new;
+
     if (unlikely(!vq->vring.used)) {
         return;
     }
@@ -536,6 +737,43 @@ void virtqueue_flush(VirtQueue *vq, unsigned int count)
         vq->signalled_used_valid = false;
 }
 
+static void virtqueue_packed_flush(VirtQueue *vq, unsigned int count)
+{
+    unsigned int i, ndescs = 0;
+
+    if (unlikely(!vq->vring.desc)) {
+        return;
+    }
+
+    for (i = 1; i < count; i++) {
+        virtqueue_packed_fill_desc(vq, &vq->used_elems[i], i, false);
+        ndescs += vq->used_elems[i].ndescs;
+    }
+    virtqueue_packed_fill_desc(vq, &vq->used_elems[0], 0, true);
+    ndescs += vq->used_elems[0].ndescs;
+
+    vq->inuse -= ndescs;
+    vq->used_idx += ndescs;
+    if (vq->used_idx >= vq->vring.num) {
+        vq->used_idx -= vq->vring.num;
+        vq->used_wrap_counter ^= 1;
+    }
+}
+
+void virtqueue_flush(VirtQueue *vq, unsigned int count)
+{
+    if (unlikely(vq->vdev->broken)) {
+        vq->inuse -= count;
+        return;
+    }
+
+    if (virtio_vdev_has_feature(vq->vdev, VIRTIO_F_RING_PACKED)) {
+        virtqueue_packed_flush(vq, count);
+    } else {
+        virtqueue_split_flush(vq, count);
+    }
+}
+
 void virtqueue_push(VirtQueue *vq, const VirtQueueElement *elem,
                     unsigned int len)
 {
@@ -588,9 +826,9 @@ enum {
     VIRTQUEUE_READ_DESC_MORE = 1,   /* more buffers in chain */
 };
 
-static int virtqueue_read_next_desc(VirtIODevice *vdev, VRingDesc *desc,
-                                    MemoryRegionCache *desc_cache, unsigned int max,
-                                    unsigned int *next)
+static int virtqueue_split_read_next_desc(VirtIODevice *vdev, VRingDesc *desc,
+                                          MemoryRegionCache *desc_cache,
+                                          unsigned int max, unsigned int *next)
 {
     /* If this descriptor says it doesn't chain, we're done. */
     if (!(desc->flags & VRING_DESC_F_NEXT)) {
@@ -607,13 +845,13 @@ static int virtqueue_read_next_desc(VirtIODevice *vdev, VRingDesc *desc,
         return VIRTQUEUE_READ_DESC_ERROR;
     }
 
-    vring_desc_read(vdev, desc, desc_cache, *next);
+    vring_split_desc_read(vdev, desc, desc_cache, *next);
     return VIRTQUEUE_READ_DESC_MORE;
 }
 
-void virtqueue_get_avail_bytes(VirtQueue *vq, unsigned int *in_bytes,
-                               unsigned int *out_bytes,
-                               unsigned max_in_bytes, unsigned max_out_bytes)
+static void virtqueue_split_get_avail_bytes(VirtQueue *vq,
+                            unsigned int *in_bytes, unsigned int *out_bytes,
+                            unsigned max_in_bytes, unsigned max_out_bytes)
 {
     VirtIODevice *vdev = vq->vdev;
     unsigned int max, idx;
@@ -623,27 +861,12 @@ void virtqueue_get_avail_bytes(VirtQueue *vq, unsigned int *in_bytes,
     int64_t len = 0;
     int rc;
 
-    if (unlikely(!vq->vring.desc)) {
-        if (in_bytes) {
-            *in_bytes = 0;
-        }
-        if (out_bytes) {
-            *out_bytes = 0;
-        }
-        return;
-    }
-
     rcu_read_lock();
     idx = vq->last_avail_idx;
     total_bufs = in_total = out_total = 0;
 
     max = vq->vring.num;
     caches = vring_get_region_caches(vq);
-    if (caches->desc.len < max * sizeof(VRingDesc)) {
-        virtio_error(vdev, "Cannot map descriptor ring");
-        goto err;
-    }
-
     while ((rc = virtqueue_num_heads(vq, idx)) > 0) {
         MemoryRegionCache *desc_cache = &caches->desc;
         unsigned int num_bufs;
@@ -656,7 +879,7 @@ void virtqueue_get_avail_bytes(VirtQueue *vq, unsigned int *in_bytes,
             goto err;
         }
 
-        vring_desc_read(vdev, &desc, desc_cache, i);
+        vring_split_desc_read(vdev, &desc, desc_cache, i);
 
         if (desc.flags & VRING_DESC_F_INDIRECT) {
             if (!desc.len || (desc.len % sizeof(VRingDesc))) {
@@ -682,7 +905,7 @@ void virtqueue_get_avail_bytes(VirtQueue *vq, unsigned int *in_bytes,
 
             max = desc.len / sizeof(VRingDesc);
             num_bufs = i = 0;
-            vring_desc_read(vdev, &desc, desc_cache, i);
+            vring_split_desc_read(vdev, &desc, desc_cache, i);
         }
 
         do {
@@ -701,7 +924,7 @@ void virtqueue_get_avail_bytes(VirtQueue *vq, unsigned int *in_bytes,
                 goto done;
             }
 
-            rc = virtqueue_read_next_desc(vdev, &desc, desc_cache, max, &i);
+            rc = virtqueue_split_read_next_desc(vdev, &desc, desc_cache, max, &i);
         } while (rc == VIRTQUEUE_READ_DESC_MORE);
 
         if (rc == VIRTQUEUE_READ_DESC_ERROR) {
@@ -723,17 +946,197 @@ void virtqueue_get_avail_bytes(VirtQueue *vq, unsigned int *in_bytes,
 done:
     address_space_cache_destroy(&indirect_desc_cache);
     if (in_bytes) {
-        *in_bytes = in_total;
+        *in_bytes = in_total;
+    }
+    if (out_bytes) {
+        *out_bytes = out_total;
+    }
+    rcu_read_unlock();
+    return;
+
+err:
+    in_total = out_total = 0;
+    goto done;
+}
+
+static int virtqueue_packed_read_next_desc(VirtQueue *vq,
+                                           VRingPackedDesc *desc,
+                                           MemoryRegionCache
+                                           *desc_cache,
+                                           unsigned int max,
+                                           unsigned int *next,
+                                           bool indirect)
+{
+    /* If this descriptor says it doesn't chain, we're done. */
+    if (!indirect && !(desc->flags & VRING_DESC_F_NEXT)) {
+        return VIRTQUEUE_READ_DESC_DONE;
+    }
+
+    ++*next;
+    if (*next == max) {
+        if (indirect) {
+            return VIRTQUEUE_READ_DESC_DONE;
+        } else {
+            (*next) -= vq->vring.num;
+        }
+    }
+
+    vring_packed_desc_read(vq->vdev, desc, desc_cache, *next, false);
+    return VIRTQUEUE_READ_DESC_MORE;
+}
+
+static void virtqueue_packed_get_avail_bytes(VirtQueue *vq,
+                                             unsigned int *in_bytes,
+                                             unsigned int *out_bytes,
+                                             unsigned max_in_bytes,
+                                             unsigned max_out_bytes)
+{
+    VirtIODevice *vdev = vq->vdev;
+    unsigned int max, idx;
+    unsigned int total_bufs, in_total, out_total;
+    MemoryRegionCache *desc_cache;
+    VRingMemoryRegionCaches *caches;
+    MemoryRegionCache indirect_desc_cache = MEMORY_REGION_CACHE_INVALID;
+    int64_t len = 0;
+    VRingPackedDesc desc;
+    bool wrap_counter;
+
+    rcu_read_lock();
+    idx = vq->last_avail_idx;
+    wrap_counter = vq->last_avail_wrap_counter;
+    total_bufs = in_total = out_total = 0;
+
+    max = vq->vring.num;
+    caches = vring_get_region_caches(vq);
+
+    for (;;) {
+        unsigned int num_bufs = total_bufs;
+        unsigned int i = idx;
+        int rc;
+
+        desc_cache = &caches->desc;
+        vring_packed_desc_read(vdev, &desc, desc_cache, idx, true);
+        if (!is_desc_avail(desc.flags, wrap_counter)) {
+            break;
+        }
+
+        if (desc.flags & VRING_DESC_F_INDIRECT) {
+            if (desc.len % sizeof(VRingPackedDesc)) {
+                virtio_error(vdev, "Invalid size for indirect buffer table");
+                goto err;
+            }
+
+            /* If we've got too many, that implies a descriptor loop. */
+            if (num_bufs >= max) {
+                virtio_error(vdev, "Looped descriptor");
+                goto err;
+            }
+
+            /* loop over the indirect descriptor table */
+            len = address_space_cache_init(&indirect_desc_cache,
+                                           vdev->dma_as,
+                                           desc.addr, desc.len, false);
+            desc_cache = &indirect_desc_cache;
+            if (len < desc.len) {
+                virtio_error(vdev, "Cannot map indirect buffer");
+                goto err;
+            }
+
+            max = desc.len / sizeof(VRingPackedDesc);
+            num_bufs = i = 0;
+            vring_packed_desc_read(vdev, &desc, desc_cache, i, false);
+        }
+
+        do {
+            /* If we've got too many, that implies a descriptor loop. */
+            if (++num_bufs > max) {
+                virtio_error(vdev, "Looped descriptor");
+                goto err;
+            }
+
+            if (desc.flags & VRING_DESC_F_WRITE) {
+                in_total += desc.len;
+            } else {
+                out_total += desc.len;
+            }
+            if (in_total >= max_in_bytes && out_total >= max_out_bytes) {
+                goto done;
+            }
+
+            rc = virtqueue_packed_read_next_desc(vq, &desc, desc_cache, max,
+                                                 &i, desc_cache ==
+                                                 &indirect_desc_cache);
+        } while (rc == VIRTQUEUE_READ_DESC_MORE);
+
+        if (desc_cache == &indirect_desc_cache) {
+            address_space_cache_destroy(&indirect_desc_cache);
+            total_bufs++;
+            idx++;
+        } else {
+            idx += num_bufs - total_bufs;
+            total_bufs = num_bufs;
+        }
+
+        if (idx >= vq->vring.num) {
+            idx -= vq->vring.num;
+            wrap_counter ^= 1;
+        }
+    }
+
+    /* Record the index and wrap counter for a kick we want */
+    vq->shadow_avail_idx = idx;
+    vq->shadow_avail_wrap_counter = wrap_counter;
+done:
+    address_space_cache_destroy(&indirect_desc_cache);
+    if (in_bytes) {
+        *in_bytes = in_total;
+    }
+    if (out_bytes) {
+        *out_bytes = out_total;
+    }
+    rcu_read_unlock();
+    return;
+
+err:
+    in_total = out_total = 0;
+    goto done;
+}
+
+void virtqueue_get_avail_bytes(VirtQueue *vq, unsigned int *in_bytes,
+                               unsigned int *out_bytes,
+                               unsigned max_in_bytes, unsigned max_out_bytes)
+{
+    uint16_t desc_size;
+    VRingMemoryRegionCaches *caches;
+
+    if (unlikely(!vq->vring.desc)) {
+        goto err;
+    }
+
+    caches = vring_get_region_caches(vq);
+    desc_size = virtio_vdev_has_feature(vq->vdev, VIRTIO_F_RING_PACKED) ?
+                                sizeof(VRingPackedDesc) : sizeof(VRingDesc);
+    if (caches->desc.len < vq->vring.num * desc_size) {
+        virtio_error(vq->vdev, "Cannot map descriptor ring");
+        goto err;
+    }
+
+    if (virtio_vdev_has_feature(vq->vdev, VIRTIO_F_RING_PACKED)) {
+        virtqueue_packed_get_avail_bytes(vq, in_bytes, out_bytes,
+                                         max_in_bytes, max_out_bytes);
+    } else {
+        virtqueue_split_get_avail_bytes(vq, in_bytes, out_bytes,
+                                        max_in_bytes, max_out_bytes);
+    }
+
+    return;
+err:
+    if (in_bytes) {
+        *in_bytes = 0;
     }
     if (out_bytes) {
-        *out_bytes = out_total;
+        *out_bytes = 0;
     }
-    rcu_read_unlock();
-    return;
-
-err:
-    in_total = out_total = 0;
-    goto done;
 }
 
 int virtqueue_avail_bytes(VirtQueue *vq, unsigned int in_bytes,
@@ -860,7 +1263,7 @@ static void *virtqueue_alloc_element(size_t sz, unsigned out_num, unsigned in_nu
     return elem;
 }
 
-void *virtqueue_pop(VirtQueue *vq, size_t sz)
+static void *virtqueue_split_pop(VirtQueue *vq, size_t sz)
 {
     unsigned int i, head, max;
     VRingMemoryRegionCaches *caches;
@@ -875,9 +1278,6 @@ void *virtqueue_pop(VirtQueue *vq, size_t sz)
     VRingDesc desc;
     int rc;
 
-    if (unlikely(vdev->broken)) {
-        return NULL;
-    }
     rcu_read_lock();
     if (virtio_queue_empty_rcu(vq)) {
         goto done;
@@ -913,7 +1313,7 @@ void *virtqueue_pop(VirtQueue *vq, size_t sz)
     }
 
     desc_cache = &caches->desc;
-    vring_desc_read(vdev, &desc, desc_cache, i);
+    vring_split_desc_read(vdev, &desc, desc_cache, i);
     if (desc.flags & VRING_DESC_F_INDIRECT) {
         if (!desc.len || (desc.len % sizeof(VRingDesc))) {
             virtio_error(vdev, "Invalid size for indirect buffer table");
@@ -931,7 +1331,7 @@ void *virtqueue_pop(VirtQueue *vq, size_t sz)
 
         max = desc.len / sizeof(VRingDesc);
         i = 0;
-        vring_desc_read(vdev, &desc, desc_cache, i);
+        vring_split_desc_read(vdev, &desc, desc_cache, i);
     }
 
     /* Collect all the descriptors */
@@ -962,7 +1362,7 @@ void *virtqueue_pop(VirtQueue *vq, size_t sz)
             goto err_undo_map;
         }
 
-        rc = virtqueue_read_next_desc(vdev, &desc, desc_cache, max, &i);
+        rc = virtqueue_split_read_next_desc(vdev, &desc, desc_cache, max, &i);
     } while (rc == VIRTQUEUE_READ_DESC_MORE);
 
     if (rc == VIRTQUEUE_READ_DESC_ERROR) {
@@ -972,6 +1372,7 @@ void *virtqueue_pop(VirtQueue *vq, size_t sz)
     /* Now copy what we have collected and mapped */
     elem = virtqueue_alloc_element(sz, out_num, in_num);
     elem->index = head;
+    elem->ndescs = 1;
     for (i = 0; i < out_num; i++) {
         elem->out_addr[i] = addr[i];
         elem->out_sg[i] = iov[i];
@@ -995,13 +1396,202 @@ err_undo_map:
     goto done;
 }
 
-/* virtqueue_drop_all:
- * @vq: The #VirtQueue
- * Drops all queued buffers and indicates them to the guest
- * as if they are done. Useful when buffers can not be
- * processed but must be returned to the guest.
- */
-unsigned int virtqueue_drop_all(VirtQueue *vq)
+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 *desc_cache;
+    int64_t len;
+    VirtIODevice *vdev = vq->vdev;
+    VirtQueueElement *elem = NULL;
+    unsigned out_num, in_num, elem_entries;
+    hwaddr addr[VIRTQUEUE_MAX_SIZE];
+    struct iovec iov[VIRTQUEUE_MAX_SIZE];
+    VRingPackedDesc desc;
+    uint16_t id;
+    int rc;
+
+    rcu_read_lock();
+    if (virtio_queue_packed_empty_rcu(vq)) {
+        goto done;
+    }
+
+    /* When we start there are none of either input nor output. */
+    out_num = in_num = elem_entries = 0;
+
+    max = vq->vring.num;
+
+    if (vq->inuse >= vq->vring.num) {
+        virtio_error(vdev, "Virtqueue size exceeded");
+        goto done;
+    }
+
+    i = vq->last_avail_idx;
+
+    caches = vring_get_region_caches(vq);
+    if (caches->desc.len < max * sizeof(VRingDesc)) {
+        virtio_error(vdev, "Cannot map descriptor ring");
+        goto done;
+    }
+
+    desc_cache = &caches->desc;
+    vring_packed_desc_read(vdev, &desc, desc_cache, i, true);
+    id = desc.id;
+    if (desc.flags & VRING_DESC_F_INDIRECT) {
+        if (desc.len % sizeof(VRingPackedDesc)) {
+            virtio_error(vdev, "Invalid size for indirect buffer table");
+            goto done;
+        }
+
+        /* loop over the indirect descriptor table */
+        len = address_space_cache_init(&indirect_desc_cache, vdev->dma_as,
+                                       desc.addr, desc.len, false);
+        desc_cache = &indirect_desc_cache;
+        if (len < desc.len) {
+            virtio_error(vdev, "Cannot map indirect buffer");
+            goto done;
+        }
+
+        max = desc.len / sizeof(VRingPackedDesc);
+        i = 0;
+        vring_packed_desc_read(vdev, &desc, desc_cache, i, false);
+    }
+
+    /* Collect all the descriptors */
+    do {
+        bool map_ok;
+
+        if (desc.flags & VRING_DESC_F_WRITE) {
+            map_ok = virtqueue_map_desc(vdev, &in_num, addr + out_num,
+                                        iov + out_num,
+                                        VIRTQUEUE_MAX_SIZE - out_num, true,
+                                        desc.addr, desc.len);
+        } else {
+            if (in_num) {
+                virtio_error(vdev, "Incorrect order for descriptors");
+                goto err_undo_map;
+            }
+            map_ok = virtqueue_map_desc(vdev, &out_num, addr, iov,
+                                        VIRTQUEUE_MAX_SIZE, false,
+                                        desc.addr, desc.len);
+        }
+        if (!map_ok) {
+            goto err_undo_map;
+        }
+
+        /* If we've got too many, that implies a descriptor loop. */
+        if (++elem_entries > max) {
+            virtio_error(vdev, "Looped descriptor");
+            goto err_undo_map;
+        }
+
+        rc = virtqueue_packed_read_next_desc(vq, &desc, desc_cache, max, &i,
+                                             desc_cache ==
+                                             &indirect_desc_cache);
+    } while (rc == VIRTQUEUE_READ_DESC_MORE);
+
+    /* Now copy what we have collected and mapped */
+    elem = virtqueue_alloc_element(sz, out_num, in_num);
+    for (i = 0; i < out_num; i++) {
+        elem->out_addr[i] = addr[i];
+        elem->out_sg[i] = iov[i];
+    }
+    for (i = 0; i < in_num; i++) {
+        elem->in_addr[i] = addr[out_num + i];
+        elem->in_sg[i] = iov[out_num + i];
+    }
+
+    elem->index = id;
+    elem->ndescs = (desc_cache == &indirect_desc_cache) ? 1 : elem_entries;
+    vq->last_avail_idx += elem->ndescs;
+    vq->inuse += elem->ndescs;
+
+    if (vq->last_avail_idx >= vq->vring.num) {
+        vq->last_avail_idx -= vq->vring.num;
+        vq->last_avail_wrap_counter ^= 1;
+    }
+
+    vq->shadow_avail_idx = vq->last_avail_idx;
+    vq->shadow_avail_wrap_counter = vq->last_avail_wrap_counter;
+
+    trace_virtqueue_pop(vq, elem, elem->in_num, elem->out_num);
+done:
+    address_space_cache_destroy(&indirect_desc_cache);
+    rcu_read_unlock();
+
+    return elem;
+
+err_undo_map:
+    virtqueue_undo_map_desc(out_num, in_num, iov);
+    goto done;
+}
+
+void *virtqueue_pop(VirtQueue *vq, size_t sz)
+{
+    if (unlikely(vq->vdev->broken)) {
+        return NULL;
+    }
+
+    if (virtio_vdev_has_feature(vq->vdev, VIRTIO_F_RING_PACKED)) {
+        return virtqueue_packed_pop(vq, sz);
+    } else {
+        return virtqueue_split_pop(vq, sz);
+    }
+}
+
+static unsigned int virtqueue_packed_drop_all(VirtQueue *vq)
+{
+    VRingMemoryRegionCaches *caches;
+    MemoryRegionCache *desc_cache;
+    unsigned int dropped = 0;
+    VirtQueueElement elem = {};
+    VirtIODevice *vdev = vq->vdev;
+    VRingPackedDesc desc;
+
+    if (unlikely(vdev->broken)) {
+        return 0;
+    }
+
+    caches = vring_get_region_caches(vq);
+    desc_cache = &caches->desc;
+
+    virtio_queue_set_notification(vq, 0);
+
+    while (vq->inuse < vq->vring.num) {
+        unsigned int idx = vq->last_avail_idx;
+        /*
+         * works similar to virtqueue_pop but does not map buffers
+         * and does not allocate any memory.
+         */
+        vring_packed_desc_read(vdev, &desc, desc_cache,
+                               vq->last_avail_idx , true);
+        if (!is_desc_avail(desc.flags, vq->last_avail_wrap_counter)) {
+            break;
+        }
+        elem.index = desc.id;
+        elem.ndescs = 1;
+        while (virtqueue_packed_read_next_desc(vq, &desc, desc_cache,
+                                               vq->vring.num, &idx, false)) {
+            ++elem.ndescs;
+        }
+        /*
+         * immediately push the element, nothing to unmap
+         * as both in_num and out_num are set to 0.
+         */
+        virtqueue_push(vq, &elem, 0);
+        dropped++;
+        vq->last_avail_idx += elem.ndescs;
+        if (vq->last_avail_idx >= vq->vring.num) {
+            vq->last_avail_idx -= vq->vring.num;
+            vq->last_avail_wrap_counter ^= 1;
+        }
+    }
+
+    return dropped;
+}
+
+static unsigned int virtqueue_split_drop_all(VirtQueue *vq)
 {
     unsigned int dropped = 0;
     VirtQueueElement elem = {};
@@ -1033,6 +1623,23 @@ unsigned int virtqueue_drop_all(VirtQueue *vq)
     return dropped;
 }
 
+/* virtqueue_drop_all:
+ * @vq: The #VirtQueue
+ * Drops all queued buffers and indicates them to the guest
+ * as if they are done. Useful when buffers can not be
+ * processed but must be returned to the guest.
+ */
+unsigned int virtqueue_drop_all(VirtQueue *vq)
+{
+    struct VirtIODevice *vdev = vq->vdev;
+
+    if (virtio_vdev_has_feature(vdev, VIRTIO_F_RING_PACKED)) {
+        return virtqueue_packed_drop_all(vq);
+    } else {
+        return virtqueue_split_drop_all(vq);
+    }
+}
+
 /* Reading and writing a structure directly to QEMUFile is *awful*, but
  * it is what QEMU has always done by mistake.  We can change it sooner
  * or later by bumping the version number of the affected vm states.
@@ -1089,11 +1696,16 @@ void *qemu_get_virtqueue_element(VirtIODevice *vdev, QEMUFile *f, size_t sz)
         elem->out_sg[i].iov_len = data.out_sg[i].iov_len;
     }
 
+    if (virtio_host_has_feature(vdev, VIRTIO_F_RING_PACKED)) {
+        qemu_get_be32s(f, &elem->ndescs);
+    }
+
     virtqueue_map(vdev, elem);
     return elem;
 }
 
-void qemu_put_virtqueue_element(QEMUFile *f, VirtQueueElement *elem)
+void qemu_put_virtqueue_element(VirtIODevice *vdev, QEMUFile *f,
+                                VirtQueueElement *elem)
 {
     VirtQueueElementOld data;
     int i;
@@ -1121,6 +1733,11 @@ void qemu_put_virtqueue_element(QEMUFile *f, VirtQueueElement *elem)
         /* Do not save iov_base as above.  */
         data.out_sg[i].iov_len = elem->out_sg[i].iov_len;
     }
+
+    if (virtio_host_has_feature(vdev, VIRTIO_F_RING_PACKED)) {
+        qemu_put_be32s(f, &elem->ndescs);
+    }
+
     qemu_put_buffer(f, (uint8_t *)&data, sizeof(VirtQueueElementOld));
 }
 
@@ -1245,6 +1862,9 @@ void virtio_reset(void *opaque)
         vdev->vq[i].last_avail_idx = 0;
         vdev->vq[i].shadow_avail_idx = 0;
         vdev->vq[i].used_idx = 0;
+        vdev->vq[i].last_avail_wrap_counter = true;
+        vdev->vq[i].shadow_avail_wrap_counter = true;
+        vdev->vq[i].used_wrap_counter = true;
         virtio_queue_set_vector(vdev, i, VIRTIO_NO_VECTOR);
         vdev->vq[i].signalled_used = 0;
         vdev->vq[i].signalled_used_valid = false;
@@ -1635,6 +2255,8 @@ VirtQueue *virtio_add_queue(VirtIODevice *vdev, int queue_size,
     vdev->vq[i].vring.align = VIRTIO_PCI_VRING_ALIGN;
     vdev->vq[i].handle_output = handle_output;
     vdev->vq[i].handle_aio_output = NULL;
+    vdev->vq[i].used_elems = g_malloc0(sizeof(VirtQueueElement) *
+                                       queue_size);
 
     return &vdev->vq[i];
 }
@@ -1649,6 +2271,7 @@ void virtio_del_queue(VirtIODevice *vdev, int n)
     vdev->vq[n].vring.num_default = 0;
     vdev->vq[n].handle_output = NULL;
     vdev->vq[n].handle_aio_output = NULL;
+    g_free(vdev->vq[n].used_elems);
 }
 
 static void virtio_set_isr(VirtIODevice *vdev, int value)
@@ -1776,6 +2399,13 @@ static bool virtio_virtqueue_needed(void *opaque)
     return virtio_host_has_feature(vdev, VIRTIO_F_VERSION_1);
 }
 
+static bool virtio_packed_virtqueue_needed(void *opaque)
+{
+    VirtIODevice *vdev = opaque;
+
+    return virtio_host_has_feature(vdev, VIRTIO_F_RING_PACKED);
+}
+
 static bool virtio_ringsize_needed(void *opaque)
 {
     VirtIODevice *vdev = opaque;
@@ -1824,6 +2454,20 @@ static const VMStateDescription vmstate_virtqueue = {
     }
 };
 
+static const VMStateDescription vmstate_packed_virtqueue = {
+    .name = "packed_virtqueue_state",
+    .version_id = 1,
+    .minimum_version_id = 1,
+    .fields = (VMStateField[]) {
+        VMSTATE_UINT16(last_avail_idx, struct VirtQueue),
+        VMSTATE_BOOL(last_avail_wrap_counter, struct VirtQueue),
+        VMSTATE_UINT16(used_idx, struct VirtQueue),
+        VMSTATE_BOOL(used_wrap_counter, struct VirtQueue),
+        VMSTATE_UINT32(inuse, struct VirtQueue),
+        VMSTATE_END_OF_LIST()
+    }
+};
+
 static const VMStateDescription vmstate_virtio_virtqueues = {
     .name = "virtio/virtqueues",
     .version_id = 1,
@@ -1836,6 +2480,18 @@ static const VMStateDescription vmstate_virtio_virtqueues = {
     }
 };
 
+static const VMStateDescription vmstate_virtio_packed_virtqueues = {
+    .name = "virtio/packed_virtqueues",
+    .version_id = 1,
+    .minimum_version_id = 1,
+    .needed = &virtio_packed_virtqueue_needed,
+    .fields = (VMStateField[]) {
+        VMSTATE_STRUCT_VARRAY_POINTER_KNOWN(vq, struct VirtIODevice,
+                      VIRTIO_QUEUE_MAX, 0, vmstate_packed_virtqueue, VirtQueue),
+        VMSTATE_END_OF_LIST()
+    }
+};
+
 static const VMStateDescription vmstate_ringsize = {
     .name = "ringsize_state",
     .version_id = 1,
@@ -1968,6 +2624,7 @@ static const VMStateDescription vmstate_virtio = {
         &vmstate_virtio_broken,
         &vmstate_virtio_extra_state,
         &vmstate_virtio_started,
+        &vmstate_virtio_packed_virtqueues,
         NULL
     }
 };
@@ -2267,6 +2924,13 @@ int virtio_load(VirtIODevice *vdev, QEMUFile *f, int version_id)
                 virtio_queue_update_rings(vdev, i);
             }
 
+            if (virtio_vdev_has_feature(vdev, VIRTIO_F_RING_PACKED)) {
+                vdev->vq[i].shadow_avail_idx = vdev->vq[i].last_avail_idx;
+                vdev->vq[i].shadow_avail_wrap_counter =
+                                        vdev->vq[i].last_avail_wrap_counter;
+                continue;
+            }
+
             nheads = vring_avail_idx(&vdev->vq[i]) - vdev->vq[i].last_avail_idx;
             /* Check it isn't doing strange things with descriptor numbers. */
             if (nheads > vdev->vq[i].vring.num) {
@@ -2410,6 +3074,10 @@ hwaddr virtio_queue_get_avail_size(VirtIODevice *vdev, int n)
 {
     int s;
 
+    if (virtio_vdev_has_feature(vdev, VIRTIO_F_RING_PACKED)) {
+        return sizeof(struct VRingPackedDescEvent);
+    }
+
     s = virtio_vdev_has_feature(vdev, VIRTIO_RING_F_EVENT_IDX) ? 2 : 0;
     return offsetof(VRingAvail, ring) +
         sizeof(uint16_t) * vdev->vq[n].vring.num + s;
@@ -2419,23 +3087,83 @@ hwaddr virtio_queue_get_used_size(VirtIODevice *vdev, int n)
 {
     int s;
 
+    if (virtio_vdev_has_feature(vdev, VIRTIO_F_RING_PACKED)) {
+        return sizeof(struct VRingPackedDescEvent);
+    }
+
     s = virtio_vdev_has_feature(vdev, VIRTIO_RING_F_EVENT_IDX) ? 2 : 0;
     return offsetof(VRingUsed, ring) +
         sizeof(VRingUsedElem) * vdev->vq[n].vring.num + s;
 }
 
-uint16_t virtio_queue_get_last_avail_idx(VirtIODevice *vdev, int n)
+static unsigned int virtio_queue_packed_get_last_avail_idx(VirtIODevice *vdev,
+                                                           int n)
+{
+    unsigned int avail, used;
+
+    avail = vdev->vq[n].last_avail_idx;
+    avail |= ((uint16_t)vdev->vq[n].last_avail_wrap_counter) << 15;
+
+    used = vdev->vq[n].used_idx;
+    used |= ((uint16_t)vdev->vq[n].used_wrap_counter) << 15;
+
+    return avail | used << 16;
+}
+
+static uint16_t virtio_queue_split_get_last_avail_idx(VirtIODevice *vdev,
+                                                      int n)
 {
     return vdev->vq[n].last_avail_idx;
 }
 
-void virtio_queue_set_last_avail_idx(VirtIODevice *vdev, int n, uint16_t idx)
+unsigned int virtio_queue_get_last_avail_idx(VirtIODevice *vdev, int n)
 {
-    vdev->vq[n].last_avail_idx = idx;
-    vdev->vq[n].shadow_avail_idx = idx;
+    if (virtio_vdev_has_feature(vdev, VIRTIO_F_RING_PACKED)) {
+        return virtio_queue_packed_get_last_avail_idx(vdev, n);
+    } else {
+        return virtio_queue_split_get_last_avail_idx(vdev, n);
+    }
 }
 
-void virtio_queue_restore_last_avail_idx(VirtIODevice *vdev, int n)
+static void virtio_queue_packed_set_last_avail_idx(VirtIODevice *vdev,
+                                                   int n, unsigned int idx)
+{
+    struct VirtQueue *vq = &vdev->vq[n];
+
+    vq->last_avail_idx = vq->shadow_avail_idx = idx & 0x7fff;
+    vq->last_avail_wrap_counter =
+        vq->shadow_avail_wrap_counter = !!(idx & 0x8000);
+    idx >>= 16;
+    vq->used_idx = idx & 0x7ffff;
+    vq->used_wrap_counter = !!(idx & 0x8000);
+}
+
+static void virtio_queue_split_set_last_avail_idx(VirtIODevice *vdev,
+                                                  int n, unsigned int idx)
+{
+        vdev->vq[n].last_avail_idx = idx;
+        vdev->vq[n].shadow_avail_idx = idx;
+}
+
+void virtio_queue_set_last_avail_idx(VirtIODevice *vdev, int n,
+                                     unsigned int idx)
+{
+    if (virtio_vdev_has_feature(vdev, VIRTIO_F_RING_PACKED)) {
+        virtio_queue_packed_set_last_avail_idx(vdev, n, idx);
+    } else {
+        virtio_queue_split_set_last_avail_idx(vdev, n, idx);
+    }
+}
+
+static void virtio_queue_packed_restore_last_avail_idx(VirtIODevice *vdev,
+                                                       int n)
+{
+    /* We don't have a reference like avail idx in shared memory */
+    return;
+}
+
+static void virtio_queue_split_restore_last_avail_idx(VirtIODevice *vdev,
+                                                      int n)
 {
     rcu_read_lock();
     if (vdev->vq[n].vring.desc) {
@@ -2445,7 +3173,22 @@ void virtio_queue_restore_last_avail_idx(VirtIODevice *vdev, int n)
     rcu_read_unlock();
 }
 
-void virtio_queue_update_used_idx(VirtIODevice *vdev, int n)
+void virtio_queue_restore_last_avail_idx(VirtIODevice *vdev, int n)
+{
+    if (virtio_vdev_has_feature(vdev, VIRTIO_F_RING_PACKED)) {
+        virtio_queue_packed_restore_last_avail_idx(vdev, n);
+    } else {
+        virtio_queue_split_restore_last_avail_idx(vdev, n);
+    }
+}
+
+static void virtio_queue_packed_update_used_idx(VirtIODevice *vdev, int n)
+{
+    /* used idx was updated through set_last_avail_idx() */
+    return;
+}
+
+static void virtio_split_packed_update_used_idx(VirtIODevice *vdev, int n)
 {
     rcu_read_lock();
     if (vdev->vq[n].vring.desc) {
@@ -2454,6 +3197,15 @@ void virtio_queue_update_used_idx(VirtIODevice *vdev, int n)
     rcu_read_unlock();
 }
 
+void virtio_queue_update_used_idx(VirtIODevice *vdev, int n)
+{
+    if (virtio_vdev_has_feature(vdev, VIRTIO_F_RING_PACKED)) {
+        return virtio_queue_packed_update_used_idx(vdev, n);
+    } else {
+        return virtio_split_packed_update_used_idx(vdev, n);
+    }
+}
+
 void virtio_queue_invalidate_signalled_used(VirtIODevice *vdev, int n)
 {
     vdev->vq[n].signalled_used_valid = false;
diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
index b189788cb2..226c94078f 100644
--- a/include/hw/virtio/virtio.h
+++ b/include/hw/virtio/virtio.h
@@ -59,6 +59,8 @@ typedef struct VirtQueue VirtQueue;
 typedef struct VirtQueueElement
 {
     unsigned int index;
+    unsigned int len;
+    unsigned int ndescs;
     unsigned int out_num;
     unsigned int in_num;
     hwaddr *in_addr;
@@ -196,7 +198,8 @@ void virtqueue_map(VirtIODevice *vdev, VirtQueueElement *elem);
 void *virtqueue_pop(VirtQueue *vq, size_t sz);
 unsigned int virtqueue_drop_all(VirtQueue *vq);
 void *qemu_get_virtqueue_element(VirtIODevice *vdev, QEMUFile *f, size_t sz);
-void qemu_put_virtqueue_element(QEMUFile *f, VirtQueueElement *elem);
+void qemu_put_virtqueue_element(VirtIODevice *vdev, QEMUFile *f,
+                                VirtQueueElement *elem);
 int virtqueue_avail_bytes(VirtQueue *vq, unsigned int in_bytes,
                           unsigned int out_bytes);
 void virtqueue_get_avail_bytes(VirtQueue *vq, unsigned int *in_bytes,
@@ -291,8 +294,9 @@ hwaddr virtio_queue_get_used_addr(VirtIODevice *vdev, int n);
 hwaddr virtio_queue_get_desc_size(VirtIODevice *vdev, int n);
 hwaddr virtio_queue_get_avail_size(VirtIODevice *vdev, int n);
 hwaddr virtio_queue_get_used_size(VirtIODevice *vdev, int n);
-uint16_t virtio_queue_get_last_avail_idx(VirtIODevice *vdev, int n);
-void virtio_queue_set_last_avail_idx(VirtIODevice *vdev, int n, uint16_t idx);
+unsigned int virtio_queue_get_last_avail_idx(VirtIODevice *vdev, int n);
+void virtio_queue_set_last_avail_idx(VirtIODevice *vdev, int n,
+                                     unsigned int idx);
 void virtio_queue_restore_last_avail_idx(VirtIODevice *vdev, int n);
 void virtio_queue_invalidate_signalled_used(VirtIODevice *vdev, int n);
 void virtio_queue_update_used_idx(VirtIODevice *vdev, int n);
-- 
2.18.1

[Qemu-devel] [PATCH V5 4/6] virtio: event suppression support for packed ring

[Jason Wang]

This patch implements event suppression through device/driver
area. Please refer virtio specification for more information.

Signed-off-by: Wei Xu <wexu@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
---
 hw/virtio/virtio.c | 142 ++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 133 insertions(+), 9 deletions(-)

diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index 4105fe2448..a70551d26d 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -236,6 +236,44 @@ static void vring_split_desc_read(VirtIODevice *vdev, VRingDesc *desc,
     virtio_tswap16s(vdev, &desc->next);
 }
 
+static void vring_packed_event_read(VirtIODevice *vdev,
+                                    MemoryRegionCache *cache,
+                                    VRingPackedDescEvent *e)
+{
+    hwaddr off_off = offsetof(VRingPackedDescEvent, off_wrap);
+    hwaddr off_flags = offsetof(VRingPackedDescEvent, flags);
+
+    address_space_read_cached(cache, off_flags, &e->flags,
+                              sizeof(e->flags));
+    /* Make sure flags is seen before off_wrap */
+    smp_rmb();
+    address_space_read_cached(cache, off_off, &e->off_wrap,
+                              sizeof(e->off_wrap));
+    virtio_tswap16s(vdev, &e->off_wrap);
+    virtio_tswap16s(vdev, &e->flags);
+}
+
+static void vring_packed_off_wrap_write(VirtIODevice *vdev,
+                                        MemoryRegionCache *cache,
+                                        uint16_t off_wrap)
+{
+    hwaddr off = offsetof(VRingPackedDescEvent, off_wrap);
+
+    virtio_tswap16s(vdev, &off_wrap);
+    address_space_write_cached(cache, off, &off_wrap, sizeof(off_wrap));
+    address_space_cache_invalidate(cache, off, sizeof(off_wrap));
+}
+
+static void vring_packed_flags_write(VirtIODevice *vdev,
+                                     MemoryRegionCache *cache, uint16_t flags)
+{
+    hwaddr off = offsetof(VRingPackedDescEvent, flags);
+
+    virtio_tswap16s(vdev, &flags);
+    address_space_write_cached(cache, off, &flags, sizeof(flags));
+    address_space_cache_invalidate(cache, off, sizeof(flags));
+}
+
 static VRingMemoryRegionCaches *vring_get_region_caches(struct VirtQueue *vq)
 {
     VRingMemoryRegionCaches *caches = atomic_rcu_read(&vq->vring.caches);
@@ -342,14 +380,8 @@ static inline void vring_set_avail_event(VirtQueue *vq, uint16_t val)
     address_space_cache_invalidate(&caches->used, pa, sizeof(val));
 }
 
-void virtio_queue_set_notification(VirtQueue *vq, int enable)
+static void virtio_queue_split_set_notification(VirtQueue *vq, int enable)
 {
-    vq->notification = enable;
-
-    if (!vq->vring.desc) {
-        return;
-    }
-
     rcu_read_lock();
     if (virtio_vdev_has_feature(vq->vdev, VIRTIO_RING_F_EVENT_IDX)) {
         vring_set_avail_event(vq, vring_avail_idx(vq));
@@ -365,6 +397,51 @@ void virtio_queue_set_notification(VirtQueue *vq, int enable)
     rcu_read_unlock();
 }
 
+static void virtio_queue_packed_set_notification(VirtQueue *vq, int enable)
+{
+    uint16_t off_wrap;
+    VRingPackedDescEvent e;
+    VRingMemoryRegionCaches *caches;
+
+    rcu_read_lock();
+    caches  = vring_get_region_caches(vq);
+    vring_packed_event_read(vq->vdev, &caches->used, &e);
+
+    if (!enable) {
+        e.flags = VRING_PACKED_EVENT_FLAG_DISABLE;
+    } else if (virtio_vdev_has_feature(vq->vdev, VIRTIO_RING_F_EVENT_IDX)) {
+        off_wrap = vq->shadow_avail_idx | vq->shadow_avail_wrap_counter << 15;
+        vring_packed_off_wrap_write(vq->vdev, &caches->used, off_wrap);
+        /* Make sure off_wrap is wrote before flags */
+        smp_wmb();
+        e.flags = VRING_PACKED_EVENT_FLAG_DESC;
+    } else {
+        e.flags = VRING_PACKED_EVENT_FLAG_ENABLE;
+    }
+
+    vring_packed_flags_write(vq->vdev, &caches->used, e.flags);
+    if (enable) {
+        /* Expose avail event/used flags before caller checks the avail idx. */
+        smp_mb();
+    }
+    rcu_read_unlock();
+}
+
+void virtio_queue_set_notification(VirtQueue *vq, int enable)
+{
+    vq->notification = enable;
+
+    if (!vq->vring.desc) {
+        return;
+    }
+
+    if (virtio_vdev_has_feature(vq->vdev, VIRTIO_F_RING_PACKED)) {
+        virtio_queue_packed_set_notification(vq, enable);
+    } else {
+        virtio_queue_split_set_notification(vq, enable);
+    }
+}
+
 int virtio_queue_ready(VirtQueue *vq)
 {
     return vq->vring.avail != 0;
@@ -2286,8 +2363,7 @@ static void virtio_set_isr(VirtIODevice *vdev, int value)
     }
 }
 
-/* Called within rcu_read_lock().  */
-static bool virtio_should_notify(VirtIODevice *vdev, VirtQueue *vq)
+static bool virtio_split_should_notify(VirtIODevice *vdev, VirtQueue *vq)
 {
     uint16_t old, new;
     bool v;
@@ -2310,6 +2386,54 @@ static bool virtio_should_notify(VirtIODevice *vdev, VirtQueue *vq)
     return !v || vring_need_event(vring_get_used_event(vq), new, old);
 }
 
+static bool vring_packed_need_event(VirtQueue *vq, bool wrap,
+                                    uint16_t off_wrap, uint16_t new,
+                                    uint16_t old)
+{
+    int off = off_wrap & ~(1 << 15);
+
+    if (wrap != off_wrap >> 15) {
+        off -= vq->vring.num;
+    }
+
+    return vring_need_event(off, new, old);
+}
+
+static bool virtio_packed_should_notify(VirtIODevice *vdev, VirtQueue *vq)
+{
+    VRingPackedDescEvent e;
+    uint16_t old, new;
+    bool v;
+    VRingMemoryRegionCaches *caches;
+
+    caches = vring_get_region_caches(vq);
+    vring_packed_event_read(vdev, &caches->avail, &e);
+
+    old = vq->signalled_used;
+    new = vq->signalled_used = vq->used_idx;
+    v = vq->signalled_used_valid;
+    vq->signalled_used_valid = true;
+
+    if (e.flags == VRING_PACKED_EVENT_FLAG_DISABLE) {
+        return false;
+    } else if (e.flags == VRING_PACKED_EVENT_FLAG_ENABLE) {
+        return true;
+    }
+
+    return !v || vring_packed_need_event(vq, vq->used_wrap_counter,
+                                         e.off_wrap, new, old);
+}
+
+/* Called within rcu_read_lock().  */
+static bool virtio_should_notify(VirtIODevice *vdev, VirtQueue *vq)
+{
+    if (virtio_vdev_has_feature(vdev, VIRTIO_F_RING_PACKED)) {
+        return virtio_packed_should_notify(vdev, vq);
+    } else {
+        return virtio_split_should_notify(vdev, vq);
+    }
+}
+
 void virtio_notify_irqfd(VirtIODevice *vdev, VirtQueue *vq)
 {
     bool should_notify;
-- 
2.18.1

[Qemu-devel] [PATCH V5 5/6] vhost_net: enable packed ring support

[Jason Wang]

Signed-off-by: Jason Wang <jasowang@redhat.com>
---
 hw/net/vhost_net.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hw/net/vhost_net.c b/hw/net/vhost_net.c
index a6b719035c..5b97997035 100644
--- a/hw/net/vhost_net.c
+++ b/hw/net/vhost_net.c
@@ -49,6 +49,7 @@ static const int kernel_feature_bits[] = {
     VIRTIO_F_VERSION_1,
     VIRTIO_NET_F_MTU,
     VIRTIO_F_IOMMU_PLATFORM,
+    VIRTIO_F_RING_PACKED,
     VHOST_INVALID_FEATURE_BIT
 };
 
@@ -74,6 +75,7 @@ static const int user_feature_bits[] = {
     VIRTIO_NET_F_MRG_RXBUF,
     VIRTIO_NET_F_MTU,
     VIRTIO_F_IOMMU_PLATFORM,
+    VIRTIO_F_RING_PACKED,
 
     /* This bit implies RARP isn't sent by QEMU out of band */
     VIRTIO_NET_F_GUEST_ANNOUNCE,
-- 
2.18.1

Re: [Qemu-devel] [PATCH V5 5/6] vhost_net: enable packed ring support

[Jens Freimann]

On Fri, Aug 02, 2019 at 12:06:05AM -0400, Jason Wang wrote:
>Signed-off-by: Jason Wang <jasowang@redhat.com>
>---
> hw/net/vhost_net.c | 2 ++
> 1 file changed, 2 insertions(+)
>

Reviewed-by: Jens Freimann <jfreimann@redhat.com>

[Qemu-devel] [PATCH V5 6/6] virtio: add property to enable packed virtqueue

[Jason Wang]

Signed-off-by: Jason Wang <jasowang@redhat.com>
---
 include/hw/virtio/virtio.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
index 226c94078f..3a4ed3ab34 100644
--- a/include/hw/virtio/virtio.h
+++ b/include/hw/virtio/virtio.h
@@ -285,7 +285,9 @@ typedef struct VirtIORNGConf VirtIORNGConf;
     DEFINE_PROP_BIT64("any_layout", _state, _field, \
                       VIRTIO_F_ANY_LAYOUT, true), \
     DEFINE_PROP_BIT64("iommu_platform", _state, _field, \
-                      VIRTIO_F_IOMMU_PLATFORM, false)
+                      VIRTIO_F_IOMMU_PLATFORM, false), \
+    DEFINE_PROP_BIT64("packed", _state, _field, \
+                      VIRTIO_F_RING_PACKED, false)
 
 hwaddr virtio_queue_get_desc_addr(VirtIODevice *vdev, int n);
 bool virtio_queue_enabled(VirtIODevice *vdev, int n);
-- 
2.18.1

Re: [Qemu-devel] [PATCH V5 6/6] virtio: add property to enable packed virtqueue

[Jens Freimann]

On Fri, Aug 02, 2019 at 12:06:06AM -0400, Jason Wang wrote:
>Signed-off-by: Jason Wang <jasowang@redhat.com>
>---
> include/hw/virtio/virtio.h | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>

Reviewed-by: Jens Freimann <jfreimann@redhat.com>

Re: [Qemu-devel] [PATCH V5 0/6] Packed virtqueue for virtrio

[no-reply]

Patchew URL: https://patchew.org/QEMU/20190802040606.22573-1-jasowang@redhat.com/



Hi,

This series failed the asan build test. Please find the testing commands and
their output below. If you have Docker installed, you can probably reproduce it
locally.

=== TEST SCRIPT BEGIN ===
#!/bin/bash
make docker-image-fedora V=1 NETWORK=1
time make docker-test-debug@fedora TARGET_LIST=x86_64-softmmu J=14 NETWORK=1
=== TEST SCRIPT END ===

PASS 1 fdc-test /x86_64/fdc/cmos
PASS 2 fdc-test /x86_64/fdc/no_media_on_start
PASS 3 fdc-test /x86_64/fdc/read_without_media
==8196==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 4 fdc-test /x86_64/fdc/media_change
PASS 5 fdc-test /x86_64/fdc/sense_interrupt
PASS 6 fdc-test /x86_64/fdc/relative_seek
---
PASS 32 test-opts-visitor /visitor/opts/range/beyond
PASS 33 test-opts-visitor /visitor/opts/dict/unvisited
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-coroutine -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-coroutine" 
==8240==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-coroutine /basic/no-dangling-access
PASS 2 test-coroutine /basic/lifecycle
PASS 3 test-coroutine /basic/yield
==8240==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffc67373000; bottom 0x7f8d084f8000; size: 0x006f5ee7b000 (478333612032)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 4 test-coroutine /basic/nesting
---
PASS 13 test-aio /aio/event/wait/no-flush-cb
PASS 11 fdc-test /x86_64/fdc/read_no_dma_18
PASS 14 test-aio /aio/timer/schedule
==8259==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 15 test-aio /aio/coroutine/queue-chaining
PASS 16 test-aio /aio-gsource/flush
PASS 17 test-aio /aio-gsource/bh/schedule
---
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-aio-multithread -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-aio-multithread" 
PASS 13 fdc-test /x86_64/fdc/fuzz-registers
PASS 1 test-aio-multithread /aio/multi/lifecycle
==8265==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img tests/ide-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="ide-test" 
PASS 2 test-aio-multithread /aio/multi/schedule
==8283==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 3 test-aio-multithread /aio/multi/mutex/contended
PASS 1 ide-test /x86_64/ide/identify
==8299==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 2 ide-test /x86_64/ide/flush
==8305==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 3 ide-test /x86_64/ide/bmdma/simple_rw
PASS 4 test-aio-multithread /aio/multi/mutex/handoff
==8311==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 4 ide-test /x86_64/ide/bmdma/trim
PASS 5 test-aio-multithread /aio/multi/mutex/mcs
==8322==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 5 ide-test /x86_64/ide/bmdma/short_prdt
PASS 6 test-aio-multithread /aio/multi/mutex/pthread
==8333==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-throttle -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-throttle" 
==8340==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-throttle /throttle/leak_bucket
PASS 2 test-throttle /throttle/compute_wait
PASS 3 test-throttle /throttle/init
---
PASS 15 test-throttle /throttle/config/iops_size
PASS 6 ide-test /x86_64/ide/bmdma/one_sector_short_prdt
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-thread-pool -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-thread-pool" 
==8347==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-thread-pool /thread-pool/submit
PASS 2 test-thread-pool /thread-pool/submit-aio
PASS 3 test-thread-pool /thread-pool/submit-co
PASS 4 test-thread-pool /thread-pool/submit-many
==8345==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 7 ide-test /x86_64/ide/bmdma/long_prdt
==8420==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8420==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffd5b216000; bottom 0x7f5bcc5fe000; size: 0x00a18ec18000 (693884780544)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 8 ide-test /x86_64/ide/bmdma/no_busmaster
PASS 5 test-thread-pool /thread-pool/cancel
PASS 9 ide-test /x86_64/ide/flush/nodev
==8431==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 6 test-thread-pool /thread-pool/cancel-async
PASS 10 ide-test /x86_64/ide/flush/empty_drive
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-hbitmap -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-hbitmap" 
---
PASS 2 test-hbitmap /hbitmap/size/0
PASS 3 test-hbitmap /hbitmap/size/unaligned
PASS 4 test-hbitmap /hbitmap/iter/empty
==8437==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 5 test-hbitmap /hbitmap/iter/partial
PASS 11 ide-test /x86_64/ide/flush/retry_pci
PASS 6 test-hbitmap /hbitmap/iter/granularity
---
PASS 10 test-hbitmap /hbitmap/set/all
PASS 11 test-hbitmap /hbitmap/set/one
PASS 12 test-hbitmap /hbitmap/set/two-elem
==8447==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 13 test-hbitmap /hbitmap/set/general
PASS 14 test-hbitmap /hbitmap/set/twice
PASS 15 test-hbitmap /hbitmap/set/overlap
PASS 16 test-hbitmap /hbitmap/reset/empty
PASS 12 ide-test /x86_64/ide/flush/retry_isa
PASS 17 test-hbitmap /hbitmap/reset/general
==8453==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 18 test-hbitmap /hbitmap/reset/all
PASS 19 test-hbitmap /hbitmap/truncate/nop
PASS 20 test-hbitmap /hbitmap/truncate/grow/negligible
---
PASS 29 test-hbitmap /hbitmap/truncate/shrink/large
PASS 30 test-hbitmap /hbitmap/meta/zero
PASS 13 ide-test /x86_64/ide/cdrom/pio
==8459==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 14 ide-test /x86_64/ide/cdrom/pio_large
==8465==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 15 ide-test /x86_64/ide/cdrom/dma
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img tests/ahci-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="ahci-test" 
==8479==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 31 test-hbitmap /hbitmap/meta/one
PASS 32 test-hbitmap /hbitmap/meta/byte
PASS 33 test-hbitmap /hbitmap/meta/word
PASS 1 ahci-test /x86_64/ahci/sanity
==8485==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 34 test-hbitmap /hbitmap/meta/sector
PASS 35 test-hbitmap /hbitmap/serialize/align
PASS 2 ahci-test /x86_64/ahci/pci_spec
==8491==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 3 ahci-test /x86_64/ahci/pci_enable
PASS 36 test-hbitmap /hbitmap/serialize/basic
PASS 37 test-hbitmap /hbitmap/serialize/part
PASS 38 test-hbitmap /hbitmap/serialize/zeroes
PASS 39 test-hbitmap /hbitmap/next_zero/next_zero_0
==8497==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 40 test-hbitmap /hbitmap/next_zero/next_zero_4
PASS 41 test-hbitmap /hbitmap/next_dirty_area/next_dirty_area_0
PASS 42 test-hbitmap /hbitmap/next_dirty_area/next_dirty_area_1
PASS 43 test-hbitmap /hbitmap/next_dirty_area/next_dirty_area_4
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-bdrv-drain -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-bdrv-drain" 
==8504==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-bdrv-drain /bdrv-drain/nested
PASS 2 test-bdrv-drain /bdrv-drain/multiparent
PASS 3 test-bdrv-drain /bdrv-drain/set_aio_context
---
PASS 39 test-bdrv-drain /bdrv-drain/detach/driver_cb
PASS 40 test-bdrv-drain /bdrv-drain/attach/drain
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-bdrv-graph-mod -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-bdrv-graph-mod" 
==8535==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8546==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-bdrv-graph-mod /bdrv-graph-mod/update-perm-tree
PASS 2 test-bdrv-graph-mod /bdrv-graph-mod/should-update-child
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-blockjob -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-blockjob" 
==8555==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-blockjob /blockjob/ids
PASS 2 test-blockjob /blockjob/cancel/created
PASS 3 test-blockjob /blockjob/cancel/running
---
PASS 8 test-blockjob /blockjob/cancel/concluded
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-blockjob-txn -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-blockjob-txn" 
PASS 5 ahci-test /x86_64/ahci/hba_enable
==8561==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-blockjob-txn /single/success
PASS 2 test-blockjob-txn /single/failure
PASS 3 test-blockjob-txn /single/cancel
---
PASS 5 test-blockjob-txn /pair/failure
PASS 6 test-blockjob-txn /pair/cancel
PASS 7 test-blockjob-txn /pair/fail-cancel-race
==8563==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-block-backend -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-block-backend" 
==8571==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-block-backend /block-backend/drain_aio_error
PASS 2 test-block-backend /block-backend/drain_all_aio_error
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-block-iothread -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-block-iothread" 
PASS 6 ahci-test /x86_64/ahci/identify
==8577==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-block-iothread /sync-op/pread
PASS 2 test-block-iothread /sync-op/pwrite
PASS 3 test-block-iothread /sync-op/load_vmstate
---
PASS 15 test-block-iothread /propagate/diamond
PASS 16 test-block-iothread /propagate/mirror
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-image-locking -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-image-locking" 
==8579==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8599==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-image-locking /image-locking/basic
PASS 2 test-image-locking /image-locking/set-perm-abort
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-x86-cpuid -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-x86-cpuid" 
---
PASS 3 test-xbzrle /xbzrle/encode_decode_unchanged
PASS 4 test-xbzrle /xbzrle/encode_decode_1_byte
PASS 5 test-xbzrle /xbzrle/encode_decode_overflow
==8615==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 6 test-xbzrle /xbzrle/encode_decode
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-vmstate -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-vmstate" 
PASS 8 ahci-test /x86_64/ahci/reset
---
PASS 133 test-cutils /cutils/strtosz/erange
PASS 134 test-cutils /cutils/strtosz/metric
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-shift128 -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-shift128" 
==8627==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-shift128 /host-utils/test_lshift
PASS 2 test-shift128 /host-utils/test_rshift
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-mul64 -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-mul64" 
==8627==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffe07755000; bottom 0x7f53cebfe000; size: 0x00aa38b57000 (731095855104)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 1 test-mul64 /host-utils/mulu64
---
PASS 10 test-int128 /int128/int128_rshift
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/rcutorture -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="rcutorture" 
PASS 9 ahci-test /x86_64/ahci/io/pio/lba28/simple/zero
==8652==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8652==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffdfb233000; bottom 0x7f942abfe000; size: 0x0069d0635000 (454467735552)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 1 rcutorture /rcu/torture/1reader
PASS 10 ahci-test /x86_64/ahci/io/pio/lba28/simple/low
==8682==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8682==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7fff1b8d6000; bottom 0x7f4c755fe000; size: 0x00b2a62d8000 (767292178432)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 2 rcutorture /rcu/torture/10readers
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-rcu-list -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-rcu-list" 
PASS 11 ahci-test /x86_64/ahci/io/pio/lba28/simple/high
==8695==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8695==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffe8d51a000; bottom 0x7fe644dfe000; size: 0x00184871c000 (104294629376)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 1 test-rcu-list /rcu/qlist/single-threaded
PASS 12 ahci-test /x86_64/ahci/io/pio/lba28/double/zero
==8707==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 2 test-rcu-list /rcu/qlist/short-few
==8707==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffe98693000; bottom 0x7f8246dfe000; size: 0x007c51895000 (533943898112)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 13 ahci-test /x86_64/ahci/io/pio/lba28/double/low
==8734==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8734==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7fffbe917000; bottom 0x7fc28a3fe000; size: 0x003d34519000 (262870765568)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 3 test-rcu-list /rcu/qlist/long-many
PASS 14 ahci-test /x86_64/ahci/io/pio/lba28/double/high
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-rcu-simpleq -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-rcu-simpleq" 
==8741==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8741==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffd84767000; bottom 0x7f84bc77c000; size: 0x0078c7feb000 (518751432704)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 1 test-rcu-simpleq /rcu/qsimpleq/single-threaded
PASS 15 ahci-test /x86_64/ahci/io/pio/lba28/long/zero
==8759==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 2 test-rcu-simpleq /rcu/qsimpleq/short-few
==8759==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffcbd94c000; bottom 0x7fccdb3fe000; size: 0x002fe254e000 (205660676096)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 16 ahci-test /x86_64/ahci/io/pio/lba28/long/low
==8786==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8786==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffe5e01f000; bottom 0x7f2773d7c000; size: 0x00d6ea2a3000 (923051634688)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 3 test-rcu-simpleq /rcu/qsimpleq/long-many
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-rcu-tailq -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-rcu-tailq" 
PASS 17 ahci-test /x86_64/ahci/io/pio/lba28/long/high
PASS 1 test-rcu-tailq /rcu/qtailq/single-threaded
==8799==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 18 ahci-test /x86_64/ahci/io/pio/lba28/short/zero
PASS 2 test-rcu-tailq /rcu/qtailq/short-few
==8811==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 19 ahci-test /x86_64/ahci/io/pio/lba28/short/low
==8838==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 3 test-rcu-tailq /rcu/qtailq/long-many
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-qdist -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-qdist" 
PASS 20 ahci-test /x86_64/ahci/io/pio/lba28/short/high
---
PASS 7 test-qdist /qdist/binning/expand
PASS 8 test-qdist /qdist/binning/shrink
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-qht -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-qht" 
==8848==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8848==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffefefec000; bottom 0x7fb5f8ffe000; size: 0x004905fee000 (313633202176)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 21 ahci-test /x86_64/ahci/io/pio/lba48/simple/zero
==8859==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8859==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffe18541000; bottom 0x7f118cbfe000; size: 0x00ec8b943000 (1015954026496)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 22 ahci-test /x86_64/ahci/io/pio/lba48/simple/low
==8865==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8865==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffd2c81b000; bottom 0x7fd688bfe000; size: 0x0026a3c1d000 (165956145152)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 23 ahci-test /x86_64/ahci/io/pio/lba48/simple/high
==8871==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8871==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7fffbe958000; bottom 0x7f9c709fe000; size: 0x00634df5a000 (426509705216)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 24 ahci-test /x86_64/ahci/io/pio/lba48/double/zero
==8877==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8877==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffff370b000; bottom 0x7f5ef49fe000; size: 0x00a0fed0d000 (691469864960)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 25 ahci-test /x86_64/ahci/io/pio/lba48/double/low
==8883==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8883==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffd6a148000; bottom 0x7f424edfe000; size: 0x00bb1b34a000 (803615318016)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 26 ahci-test /x86_64/ahci/io/pio/lba48/double/high
==8889==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8889==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffd078de000; bottom 0x7f9efad7c000; size: 0x005e0cb62000 (403940188160)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 27 ahci-test /x86_64/ahci/io/pio/lba48/long/zero
==8895==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8895==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffcdccb2000; bottom 0x7f58cdbfe000; size: 0x00a40f0b4000 (704627032064)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 28 ahci-test /x86_64/ahci/io/pio/lba48/long/low
==8901==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==8901==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffde346f000; bottom 0x7f421b524000; size: 0x00bbc7f4b000 (806513586176)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 29 ahci-test /x86_64/ahci/io/pio/lba48/long/high
PASS 1 test-qht /qht/mode/default
==8907==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 2 test-qht /qht/mode/resize
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-qht-par -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-qht-par" 
PASS 30 ahci-test /x86_64/ahci/io/pio/lba48/short/zero
PASS 1 test-qht-par /qht/parallel/2threads-0%updates-1s
==8923==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 31 ahci-test /x86_64/ahci/io/pio/lba48/short/low
PASS 2 test-qht-par /qht/parallel/2threads-20%updates-1s
==8936==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-bitops -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-bitops" 
PASS 1 test-bitops /bitops/sextract32
PASS 2 test-bitops /bitops/sextract64
---
PASS 1 check-qom-interface /qom/interface/direct_impl
PASS 2 check-qom-interface /qom/interface/intermediate_impl
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/check-qom-proplist -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="check-qom-proplist" 
==8958==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 check-qom-proplist /qom/proplist/createlist
PASS 2 check-qom-proplist /qom/proplist/createv
PASS 3 check-qom-proplist /qom/proplist/createcmdline
---
PASS 4 test-crypto-hash /crypto/hash/digest
PASS 5 test-crypto-hash /crypto/hash/base64
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-crypto-hmac -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-crypto-hmac" 
==8985==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-crypto-hmac /crypto/hmac/iov
PASS 2 test-crypto-hmac /crypto/hmac/alloc
PASS 3 test-crypto-hmac /crypto/hmac/prealloc
---
PASS 15 test-crypto-secret /crypto/secret/crypt/missingiv
PASS 16 test-crypto-secret /crypto/secret/crypt/badiv
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-crypto-tlscredsx509 -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-crypto-tlscredsx509" 
==9016==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 35 ahci-test /x86_64/ahci/io/dma/lba28/simple/zero
==9026==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/perfectserver
PASS 2 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/perfectclient
PASS 36 ahci-test /x86_64/ahci/io/dma/lba28/simple/low
PASS 3 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/goodca1
==9032==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 4 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/goodca2
PASS 37 ahci-test /x86_64/ahci/io/dma/lba28/simple/high
==9038==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 5 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/goodca3
PASS 6 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/badca1
PASS 7 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/badca2
PASS 8 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/badca3
PASS 38 ahci-test /x86_64/ahci/io/dma/lba28/double/zero
PASS 9 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/goodserver1
==9044==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 39 ahci-test /x86_64/ahci/io/dma/lba28/double/low
PASS 10 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/goodserver2
PASS 11 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/goodserver3
==9050==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 40 ahci-test /x86_64/ahci/io/dma/lba28/double/high
PASS 12 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/goodserver4
==9056==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 41 ahci-test /x86_64/ahci/io/dma/lba28/long/zero
==9062==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 13 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/goodserver5
PASS 14 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/goodserver6
PASS 42 ahci-test /x86_64/ahci/io/dma/lba28/long/low
---
PASS 19 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/goodclient1
PASS 20 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/goodclient2
PASS 21 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/goodclient3
==9068==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 22 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/goodclient4
PASS 23 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/goodclient5
PASS 24 test-crypto-tlscredsx509 /qcrypto/tlscredsx509/goodclient6
---
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-crypto-tlssession -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-crypto-tlssession" 
PASS 43 ahci-test /x86_64/ahci/io/dma/lba28/long/high
PASS 1 test-crypto-tlssession /qcrypto/tlssession/psk
==9079==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 44 ahci-test /x86_64/ahci/io/dma/lba28/short/zero
PASS 2 test-crypto-tlssession /qcrypto/tlssession/basicca
==9085==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 3 test-crypto-tlssession /qcrypto/tlssession/differentca
PASS 45 ahci-test /x86_64/ahci/io/dma/lba28/short/low
PASS 4 test-crypto-tlssession /qcrypto/tlssession/altname1
==9091==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 5 test-crypto-tlssession /qcrypto/tlssession/altname2
PASS 46 ahci-test /x86_64/ahci/io/dma/lba28/short/high
PASS 6 test-crypto-tlssession /qcrypto/tlssession/altname3
==9097==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 7 test-crypto-tlssession /qcrypto/tlssession/altname4
PASS 8 test-crypto-tlssession /qcrypto/tlssession/altname5
PASS 47 ahci-test /x86_64/ahci/io/dma/lba48/simple/zero
PASS 9 test-crypto-tlssession /qcrypto/tlssession/altname6
PASS 10 test-crypto-tlssession /qcrypto/tlssession/wildcard1
PASS 11 test-crypto-tlssession /qcrypto/tlssession/wildcard2
==9103==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 12 test-crypto-tlssession /qcrypto/tlssession/wildcard3
PASS 48 ahci-test /x86_64/ahci/io/dma/lba48/simple/low
PASS 13 test-crypto-tlssession /qcrypto/tlssession/wildcard4
==9109==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 14 test-crypto-tlssession /qcrypto/tlssession/wildcard5
PASS 49 ahci-test /x86_64/ahci/io/dma/lba48/simple/high
PASS 15 test-crypto-tlssession /qcrypto/tlssession/wildcard6
==9115==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 50 ahci-test /x86_64/ahci/io/dma/lba48/double/zero
==9122==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 51 ahci-test /x86_64/ahci/io/dma/lba48/double/low
PASS 16 test-crypto-tlssession /qcrypto/tlssession/cachain
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-qga -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-qga" 
==9128==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 52 ahci-test /x86_64/ahci/io/dma/lba48/double/high
PASS 1 test-qga /qga/sync-delimited
PASS 2 test-qga /qga/sync
---
PASS 15 test-qga /qga/invalid-cmd
PASS 16 test-qga /qga/invalid-args
PASS 17 test-qga /qga/fsfreeze-status
==9140==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 53 ahci-test /x86_64/ahci/io/dma/lba48/long/zero
PASS 18 test-qga /qga/blacklist
PASS 19 test-qga /qga/config
PASS 20 test-qga /qga/guest-exec
PASS 21 test-qga /qga/guest-exec-invalid
==9147==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 54 ahci-test /x86_64/ahci/io/dma/lba48/long/low
PASS 22 test-qga /qga/guest-get-osinfo
PASS 23 test-qga /qga/guest-get-host-name
PASS 24 test-qga /qga/guest-get-timezone
PASS 25 test-qga /qga/guest-get-users
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-timed-average -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-timed-average" 
==9160==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-timed-average /timed-average/average
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-util-filemonitor -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-util-filemonitor" 
PASS 1 test-util-filemonitor /util/filemonitor
---
PASS 4 test-authz-listfile /auth/list/explicit/deny
PASS 5 test-authz-listfile /auth/list/explicit/allow
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-io-task -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-io-task" 
==9190==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-io-task /crypto/task/complete
PASS 2 test-io-task /crypto/task/datafree
PASS 3 test-io-task /crypto/task/failure
---
PASS 4 test-io-channel-file /io/channel/pipe/sync
PASS 5 test-io-channel-file /io/channel/pipe/async
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-io-channel-tls -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-io-channel-tls" 
==9262==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 57 ahci-test /x86_64/ahci/io/dma/lba48/short/low
==9272==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 58 ahci-test /x86_64/ahci/io/dma/lba48/short/high
PASS 1 test-io-channel-tls /qio/channel/tls/basic
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-io-channel-command -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-io-channel-command" 
---
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-io-channel-buffer -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-io-channel-buffer" 
PASS 1 test-io-channel-buffer /io/channel/buf
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-base64 -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-base64" 
==9283==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-base64 /util/base64/good
PASS 2 test-base64 /util/base64/embedded-nul
PASS 3 test-base64 /util/base64/not-nul-terminated
---
PASS 17 test-crypto-xts /crypto/xts/t-21-key-32-ptx-31/basic
PASS 18 test-crypto-xts /crypto/xts/t-21-key-32-ptx-31/unaligned
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-crypto-block -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-crypto-block" 
==9316==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-crypto-block /crypto/block/qcow
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-logging -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-logging" 
PASS 1 test-logging /logging/parse_range
PASS 2 test-logging /logging/parse_path
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-replication -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-replication" 
PASS 60 ahci-test /x86_64/ahci/io/ncq/retry
==9339==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 1 test-replication /replication/primary/read
PASS 2 test-replication /replication/primary/write
==9341==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 61 ahci-test /x86_64/ahci/flush/simple
PASS 3 test-replication /replication/primary/start
PASS 4 test-replication /replication/primary/stop
PASS 5 test-replication /replication/primary/do_checkpoint
PASS 6 test-replication /replication/primary/get_error_all
PASS 7 test-replication /replication/secondary/read
==9349==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 62 ahci-test /x86_64/ahci/flush/retry
PASS 8 test-replication /replication/secondary/write
==9355==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==9360==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==9339==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffcd8915000; bottom 0x7f36107fc000; size: 0x00c6c8119000 (853760118784)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 9 test-replication /replication/secondary/start
PASS 63 ahci-test /x86_64/ahci/flush/migrate
==9387==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==9392==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 10 test-replication /replication/secondary/stop
PASS 64 ahci-test /x86_64/ahci/migrate/sanity
==9402==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==9407==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 11 test-replication /replication/secondary/do_checkpoint
PASS 12 test-replication /replication/secondary/get_error_all
PASS 65 ahci-test /x86_64/ahci/migrate/dma/simple
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  tests/test-bufferiszero -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="test-bufferiszero" 
==9417==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==9425==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 66 ahci-test /x86_64/ahci/migrate/dma/halted
==9434==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==9439==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 67 ahci-test /x86_64/ahci/migrate/ncq/simple
==9448==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==9453==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 68 ahci-test /x86_64/ahci/migrate/ncq/halted
==9462==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 69 ahci-test /x86_64/ahci/cdrom/eject
==9467==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 70 ahci-test /x86_64/ahci/cdrom/dma/single
==9473==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 71 ahci-test /x86_64/ahci/cdrom/dma/multi
==9479==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 72 ahci-test /x86_64/ahci/cdrom/pio/single
==9485==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
==9485==WARNING: ASan is ignoring requested __asan_handle_no_return: stack top: 0x7ffd0bec3000; bottom 0x7f91073fe000; size: 0x006c04ac5000 (463934869504)
False positive error reports may follow
For details see https://github.com/google/sanitizers/issues/189
PASS 73 ahci-test /x86_64/ahci/cdrom/pio/multi
==9491==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 74 ahci-test /x86_64/ahci/cdrom/pio/bcl
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img tests/hd-geo-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="hd-geo-test" 
PASS 1 hd-geo-test /x86_64/hd-geo/ide/none
==9505==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 2 hd-geo-test /x86_64/hd-geo/ide/drive/cd_0
==9511==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 3 hd-geo-test /x86_64/hd-geo/ide/drive/mbr/blank
==9517==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 4 hd-geo-test /x86_64/hd-geo/ide/drive/mbr/lba
==9523==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 5 hd-geo-test /x86_64/hd-geo/ide/drive/mbr/chs
==9529==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 6 hd-geo-test /x86_64/hd-geo/ide/device/mbr/blank
==9535==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 7 hd-geo-test /x86_64/hd-geo/ide/device/mbr/lba
==9541==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 8 hd-geo-test /x86_64/hd-geo/ide/device/mbr/chs
==9547==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 9 hd-geo-test /x86_64/hd-geo/ide/device/user/chs
==9552==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 10 hd-geo-test /x86_64/hd-geo/ide/device/user/chst
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img tests/boot-order-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="boot-order-test" 
PASS 1 test-bufferiszero /cutils/bufferiszero
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9637==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/pc/FACP'
Using expected file 'tests/data/acpi/pc/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9643==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/q35/FACP'
Using expected file 'tests/data/acpi/q35/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9649==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/pc/FACP.bridge'
Looking for expected file 'tests/data/acpi/pc/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9655==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/pc/FACP.ipmikcs'
Looking for expected file 'tests/data/acpi/pc/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9661==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/pc/FACP.cphp'
Looking for expected file 'tests/data/acpi/pc/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9668==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/pc/FACP.memhp'
Looking for expected file 'tests/data/acpi/pc/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9674==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/pc/FACP.numamem'
Looking for expected file 'tests/data/acpi/pc/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9680==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/pc/FACP.dimmpxm'
Looking for expected file 'tests/data/acpi/pc/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9689==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/q35/FACP.bridge'
Looking for expected file 'tests/data/acpi/q35/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9695==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/q35/FACP.mmio64'
Looking for expected file 'tests/data/acpi/q35/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9701==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/q35/FACP.ipmibt'
Looking for expected file 'tests/data/acpi/q35/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9707==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/q35/FACP.cphp'
Looking for expected file 'tests/data/acpi/q35/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9714==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/q35/FACP.memhp'
Looking for expected file 'tests/data/acpi/q35/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9720==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/q35/FACP.numamem'
Looking for expected file 'tests/data/acpi/q35/FACP'
---
Could not access KVM kernel module: No such file or directory
qemu-system-x86_64: failed to initialize KVM: No such file or directory
qemu-system-x86_64: Back to tcg accelerator
==9726==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!

Looking for expected file 'tests/data/acpi/q35/FACP.dimmpxm'
Looking for expected file 'tests/data/acpi/q35/FACP'
---
PASS 1 i440fx-test /x86_64/i440fx/defaults
PASS 2 i440fx-test /x86_64/i440fx/pam
PASS 3 i440fx-test /x86_64/i440fx/firmware/bios
==9810==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
PASS 4 i440fx-test /x86_64/i440fx/firmware/pflash
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img tests/fw_cfg-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="fw_cfg-test" 
PASS 1 fw_cfg-test /x86_64/fw_cfg/signature
---
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 QTEST_QEMU_IMG=qemu-img tests/device-plug-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="device-plug-test" 

=================================================================
==9879==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 3584 byte(s) in 1 object(s) allocated from:
    #0 0x563218444bee in calloc (/tmp/qemu-test/build/x86_64-softmmu/qemu-system-x86_64+0x1a16bee)
---

SUMMARY: AddressSanitizer: 7168 byte(s) leaked in 2 allocation(s).
/tmp/qemu-test/src/tests/libqtest.c:137: kill_qemu() tried to terminate QEMU process but encountered exit status 1
ERROR - too few tests run (expected 1, got 0)
make: *** [/tmp/qemu-test/src/tests/Makefile.include:899: check-qtest-x86_64] Error 1
make: *** Waiting for unfinished jobs....
Traceback (most recent call last):


The full log is available at
http://patchew.org/logs/20190802040606.22573-1-jasowang@redhat.com/testing.asan/?type=message.
---
Email generated automatically by Patchew [https://patchew.org/].
Please send your feedback to patchew-devel@redhat.com