Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

virtio, pci, pc: fixes, features

Bugfixes all over the place.
HMAT support.
New flags for vhost-user-blk utility.
Auto-tuning of seg max for virtio storage.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Mon 06 Jan 2020 17:05:05 GMT
# gpg:                using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg:                issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>" [full]
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream: (32 commits)
  intel_iommu: add present bit check for pasid table entries
  intel_iommu: a fix to vtd_find_as_from_bus_num()
  virtio-net: delete also control queue when TX/RX deleted
  virtio: reset region cache when on queue deletion
  virtio-mmio: update queue size on guest write
  tests: add virtio-scsi and virtio-blk seg_max_adjust test
  virtio: make seg_max virtqueue size dependent
  hw: fix using 4.2 compat in 5.0 machine types for i440fx/q35
  vhost-user-scsi: reset the device if supported
  vhost-user: add VHOST_USER_RESET_DEVICE to reset devices
  hw/pci/pci_host: Let pci_data_[read/write] use unsigned 'size' argument
  hw/pci/pci_host: Remove redundant PCI_DPRINTF()
  virtio-mmio: Clear v2 transport state on soft reset
  ACPI: add expected files for HMAT tests (acpihmat)
  tests/bios-tables-test: add test cases for ACPI HMAT
  tests/numa: Add case for QMP build HMAT
  hmat acpi: Build Memory Side Cache Information Structure(s)
  hmat acpi: Build System Locality Latency and Bandwidth Information Structure(s)
  hmat acpi: Build Memory Proximity Domain Attributes Structure(s)
  numa: Extend CLI to provide memory side cache information
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 18 insertions, 0 deletions

diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
index c32a815303..b69d517496 100644
--- a/include/hw/virtio/virtio.h
+++ b/include/hw/virtio/virtio.h
@@ -100,6 +100,8 @@ struct VirtIODevice
     uint16_t device_id;
     bool vm_running;
     bool broken; /* device in invalid state, needs reset */
+    bool use_disabled_flag; /* allow use of 'disable' flag when needed */
+    bool disabled; /* device in temporarily disabled state */
     bool use_started;
     bool started;
     bool start_on_kick; /* when virtio 1.0 feature has not been negotiated */
@@ -183,6 +185,8 @@ VirtQueue *virtio_add_queue(VirtIODevice *vdev, int queue_size,
 
 void virtio_del_queue(VirtIODevice *vdev, int n);
 
+void virtio_delete_queue(VirtQueue *vq);
+
 void virtqueue_push(VirtQueue *vq, const VirtQueueElement *elem,
                     unsigned int len);
 void virtqueue_flush(VirtQueue *vq, unsigned int count);
@@ -224,6 +228,7 @@ int virtio_load(VirtIODevice *vdev, QEMUFile *f, int version_id);
 
 void virtio_notify_config(VirtIODevice *vdev);
 
+bool virtio_queue_get_notification(VirtQueue *vq);
 void virtio_queue_set_notification(VirtQueue *vq, int enable);
 
 int virtio_queue_ready(VirtQueue *vq);
@@ -378,4 +383,17 @@ static inline void virtio_set_started(VirtIODevice *vdev, bool started)
         vdev->started = started;
     }
 }
+
+static inline void virtio_set_disabled(VirtIODevice *vdev, bool disable)
+{
+    if (vdev->use_disabled_flag) {
+        vdev->disabled = disable;
+    }
+}
+
+static inline bool virtio_device_disabled(VirtIODevice *vdev)
+{
+    return unlikely(vdev->disabled || vdev->broken);
+}
+
 #endif