To support configure interrupt for vhost-vdpa
Introduce VIRTIO_CONFIG_IRQ_IDX -1 as configure interrupt's queue index,
Then we can reuse the functions guest_notifier_mask and guest_notifier_pending.
Add the check of queue index in these drivers, if the driver does not support
configure interrupt, the function will just return
Signed-off-by: Cindy Lu <l...@redhat.com>
---
hw/display/vhost-user-gpu.c | 18 ++++++++++++++++++
hw/net/virtio-net.c | 22 ++++++++++++++++++++--
hw/virtio/vhost-user-fs.c | 18 ++++++++++++++++++
hw/virtio/vhost-user-gpio.c | 10 ++++++++++
hw/virtio/vhost-vsock-common.c | 18 ++++++++++++++++++
hw/virtio/virtio-crypto.c | 18 ++++++++++++++++++
include/hw/virtio/virtio.h | 3 +++
7 files changed, 105 insertions(+), 2 deletions(-)
diff --git a/hw/display/vhost-user-gpu.c b/hw/display/vhost-user-gpu.c
index 19c0e20103..4380a5e672 100644
--- a/hw/display/vhost-user-gpu.c
+++ b/hw/display/vhost-user-gpu.c
@@ -486,6 +486,15 @@ vhost_user_gpu_guest_notifier_pending(VirtIODevice *vdev,
int idx)
{
VhostUserGPU *g = VHOST_USER_GPU(vdev);
+ /*
+ * Add the check for configure interrupt, Use VIRTIO_CONFIG_IRQ_IDX -1
+ * as the Marco of configure interrupt's IDX, If this driver does not
+ * support, the function will return
+ */
+
+ if (idx == VIRTIO_CONFIG_IRQ_IDX) {
+ return false;
+ }
return vhost_virtqueue_pending(&g->vhost->dev, idx);
}
@@ -494,6 +503,15 @@ vhost_user_gpu_guest_notifier_mask(VirtIODevice *vdev, int
idx, bool mask)
{
VhostUserGPU *g = VHOST_USER_GPU(vdev);
+ /*
+ * Add the check for configure interrupt, Use VIRTIO_CONFIG_IRQ_IDX -1
+ * as the Marco of configure interrupt's IDX, If this driver does not
+ * support, the function will return
+ */
+
+ if (idx == VIRTIO_CONFIG_IRQ_IDX) {
+ return;
+ }
vhost_virtqueue_mask(&g->vhost->dev, vdev, idx, mask);
}
diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
index e9f696b4cf..0cc4ee7c7c 100644
--- a/hw/net/virtio-net.c
+++ b/hw/net/virtio-net.c
@@ -3216,6 +3216,15 @@ static bool
virtio_net_guest_notifier_pending(VirtIODevice *vdev, int idx)
} else {
nc = qemu_get_subqueue(n->nic, vq2q(idx));
}
+ /*
+ * Add the check for configure interrupt, Use VIRTIO_CONFIG_IRQ_IDX -1
+ * as the Marco of configure interrupt's IDX, If this driver does not
+ * support, the function will return false
+ */
+
+ if (idx == VIRTIO_CONFIG_IRQ_IDX) {
+ return false;
+ }
return vhost_net_virtqueue_pending(get_vhost_net(nc->peer), idx);
}
@@ -3239,8 +3248,17 @@ static void virtio_net_guest_notifier_mask(VirtIODevice
*vdev, int idx,
} else {
nc = qemu_get_subqueue(n->nic, vq2q(idx));
}
- vhost_net_virtqueue_mask(get_vhost_net(nc->peer),
- vdev, idx, mask);
+ /*
+ *Add the check for configure interrupt, Use VIRTIO_CONFIG_IRQ_IDX -1
+ * as the Marco of configure interrupt's IDX, If this driver does not
+ * support, the function will return
+ */
+
+ if (idx == VIRTIO_CONFIG_IRQ_IDX) {
+ return;
+ }
+
+ vhost_net_virtqueue_mask(get_vhost_net(nc->peer), vdev, idx, mask);
}
static void virtio_net_set_config_size(VirtIONet *n, uint64_t host_features)
diff --git a/hw/virtio/vhost-user-fs.c b/hw/virtio/vhost-user-fs.c
index ad0f91c607..1a5a10a21d 100644
--- a/hw/virtio/vhost-user-fs.c
+++ b/hw/virtio/vhost-user-fs.c
@@ -158,6 +158,15 @@ static void vuf_guest_notifier_mask(VirtIODevice *vdev,
int idx,
{
VHostUserFS *fs = VHOST_USER_FS(vdev);
+ /*
+ * Add the check for configure interrupt, Use VIRTIO_CONFIG_IRQ_IDX -1
+ * as the Marco of configure interrupt's IDX, If this driver does not
+ * support, the function will return
+ */
+
+ if (idx == VIRTIO_CONFIG_IRQ_IDX) {
+ return;
+ }
vhost_virtqueue_mask(&fs->vhost_dev, vdev, idx, mask);
}
@@ -165,6 +174,15 @@ static bool vuf_guest_notifier_pending(VirtIODevice *vdev,
int idx)
{
VHostUserFS *fs = VHOST_USER_FS(vdev);
+ /*
+ * Add the check for configure interrupt, Use VIRTIO_CONFIG_IRQ_IDX -1
+ * as the Marco of configure interrupt's IDX, If this driver does not
+ * support, the function will return
+ */
+
+ if (idx == VIRTIO_CONFIG_IRQ_IDX) {
+ return false;
+ }
return vhost_virtqueue_pending(&fs->vhost_dev, idx);
}
diff --git a/hw/virtio/vhost-user-gpio.c b/hw/virtio/vhost-user-gpio.c
index 8b40fe450c..93a405ab99 100644
--- a/hw/virtio/vhost-user-gpio.c
+++ b/hw/virtio/vhost-user-gpio.c
@@ -193,6 +193,16 @@ static void vu_gpio_guest_notifier_mask(VirtIODevice
*vdev, int idx, bool mask)
{
VHostUserGPIO *gpio = VHOST_USER_GPIO(vdev);
+ /*
+ * Add the check for configure interrupt, Use VIRTIO_CONFIG_IRQ_IDX -1
+ * as the Marco of configure interrupt's IDX, If this driver does not
+ * support, the function will return
+ */
+
+ if (idx == VIRTIO_CONFIG_IRQ_IDX) {
+ return;
+ }
+
vhost_virtqueue_mask(&gpio->vhost_dev, vdev, idx, mask);
}
diff --git a/hw/virtio/vhost-vsock-common.c b/hw/virtio/vhost-vsock-common.c
index 29b9ab4f72..ce3597a7ab 100644
--- a/hw/virtio/vhost-vsock-common.c
+++ b/hw/virtio/vhost-vsock-common.c
@@ -126,6 +126,15 @@ static void
vhost_vsock_common_guest_notifier_mask(VirtIODevice *vdev, int idx,
{
VHostVSockCommon *vvc = VHOST_VSOCK_COMMON(vdev);
+ /*
+ * Add the check for configure interrupt, Use VIRTIO_CONFIG_IRQ_IDX -1
+ * as the Marco of configure interrupt's IDX, If this driver does not
+ * support, the function will return
+ */
+
+ if (idx == VIRTIO_CONFIG_IRQ_IDX) {
+ return;
+ }
vhost_virtqueue_mask(&vvc->vhost_dev, vdev, idx, mask);
}
@@ -134,6 +143,15 @@ static bool
vhost_vsock_common_guest_notifier_pending(VirtIODevice *vdev,
{
VHostVSockCommon *vvc = VHOST_VSOCK_COMMON(vdev);
+ /*
+ * Add the check for configure interrupt, Use VIRTIO_CONFIG_IRQ_IDX -1
+ * as the Marco of configure interrupt's IDX, If this driver does not
+ * support, the function will return
+ */
+
+ if (idx == VIRTIO_CONFIG_IRQ_IDX) {
+ return false;
+ }
return vhost_virtqueue_pending(&vvc->vhost_dev, idx);
}
diff --git a/hw/virtio/virtio-crypto.c b/hw/virtio/virtio-crypto.c
index df4bde210b..277f657339 100644
--- a/hw/virtio/virtio-crypto.c
+++ b/hw/virtio/virtio-crypto.c
@@ -1139,6 +1139,15 @@ static void
virtio_crypto_guest_notifier_mask(VirtIODevice *vdev, int idx,
assert(vcrypto->vhost_started);
+ /*
+ * Add the check for configure interrupt, Use VIRTIO_CONFIG_IRQ_IDX -1
+ * as the Marco of configure interrupt's IDX, If this driver does not
+ * support, the function will return
+ */
+
+ if (idx == VIRTIO_CONFIG_IRQ_IDX) {
+ return;
+ }
cryptodev_vhost_virtqueue_mask(vdev, queue, idx, mask);
}
@@ -1149,6 +1158,15 @@ static bool
virtio_crypto_guest_notifier_pending(VirtIODevice *vdev, int idx)
assert(vcrypto->vhost_started);
+ /*
+ * Add the check for configure interrupt, Use VIRTIO_CONFIG_IRQ_IDX -1
+ * as the Marco of configure interrupt's IDX, If this driver does not
+ * support, the function will return
+ */
+
+ if (idx == VIRTIO_CONFIG_IRQ_IDX) {
+ return false;
+ }
return cryptodev_vhost_virtqueue_pending(vdev, queue, idx);
}
diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
index f41b4a7e64..a9953cf8b0 100644
--- a/include/hw/virtio/virtio.h
+++ b/include/hw/virtio/virtio.h
@@ -79,6 +79,9 @@ typedef struct VirtQueueElement
#define VIRTIO_NO_VECTOR 0xffff
+/* special index value used internally for config irqs */
+#define VIRTIO_CONFIG_IRQ_IDX -1
+
#define TYPE_VIRTIO_DEVICE "virtio-device"
OBJECT_DECLARE_TYPE(VirtIODevice, VirtioDeviceClass, VIRTIO_DEVICE)
--
2.34.3
