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-rw-r--r--hw/virtio/virtio-pci.c14
-rw-r--r--include/hw/compat.h8
2 files changed, 20 insertions, 2 deletions
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index c20537f31d..b55dfcf05c 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -1932,7 +1932,8 @@ static Property virtio_blk_pci_properties[] = {
DEFINE_PROP_UINT32("class", VirtIOPCIProxy, class_code, 0),
DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
- DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2),
+ DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors,
+ DEV_NVECTORS_UNSPECIFIED),
DEFINE_PROP_END_OF_LIST(),
};
@@ -1941,6 +1942,10 @@ static void virtio_blk_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
VirtIOBlkPCI *dev = VIRTIO_BLK_PCI(vpci_dev);
DeviceState *vdev = DEVICE(&dev->vdev);
+ if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) {
+ vpci_dev->nvectors = dev->vdev.conf.num_queues + 1;
+ }
+
qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
object_property_set_bool(OBJECT(vdev), true, "realized", errp);
}
@@ -1983,7 +1988,8 @@ static const TypeInfo virtio_blk_pci_info = {
static Property vhost_user_blk_pci_properties[] = {
DEFINE_PROP_UINT32("class", VirtIOPCIProxy, class_code, 0),
- DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2),
+ DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors,
+ DEV_NVECTORS_UNSPECIFIED),
DEFINE_PROP_END_OF_LIST(),
};
@@ -1992,6 +1998,10 @@ static void vhost_user_blk_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
VHostUserBlkPCI *dev = VHOST_USER_BLK_PCI(vpci_dev);
DeviceState *vdev = DEVICE(&dev->vdev);
+ if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) {
+ vpci_dev->nvectors = dev->vdev.num_queues + 1;
+ }
+
qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
object_property_set_bool(OBJECT(vdev), true, "realized", errp);
}
diff --git a/include/hw/compat.h b/include/hw/compat.h
index 7f31850dfa..bc9e3a6627 100644
--- a/include/hw/compat.h
+++ b/include/hw/compat.h
@@ -6,6 +6,14 @@
.driver = "hpet",\
.property = "hpet-offset-saved",\
.value = "false",\
+ },{\
+ .driver = "virtio-blk-pci",\
+ .property = "vectors",\
+ .value = "2",\
+ },{\
+ .driver = "vhost-user-blk-pci",\
+ .property = "vectors",\
+ .value = "2",\
},
#define HW_COMPAT_2_10 \