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| author | Cindy Lu <lulu@redhat.com> | 2021-11-05 00:48:18 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2022-01-06 06:11:39 -0500 |
| commit | bf1d85c166c19af95dbd27b1faba1d2909732323 (patch) | |
| tree | b5aa07ac6e4b08fe8b789723657d748b6dddf6bf /hw/display | |
| parent | 9bd6565ccee68f72d5012e24646e12a1c662827e (diff) | |
| download | qemu-bf1d85c166c19af95dbd27b1faba1d2909732323.zip qemu-bf1d85c166c19af95dbd27b1faba1d2909732323.tar.gz qemu-bf1d85c166c19af95dbd27b1faba1d2909732323.tar.bz2 | |
virtio: introduce macro IRTIO_CONFIG_IRQ_IDX
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 <lulu@redhat.com>
Message-Id: <20211104164827.21911-2-lulu@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/display')
| -rw-r--r-- | hw/display/vhost-user-gpu.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/hw/display/vhost-user-gpu.c b/hw/display/vhost-user-gpu.c index 0981823..d4a440e 100644 --- a/hw/display/vhost-user-gpu.c +++ b/hw/display/vhost-user-gpu.c @@ -485,6 +485,9 @@ vhost_user_gpu_guest_notifier_pending(VirtIODevice *vdev, int idx) { VhostUserGPU *g = VHOST_USER_GPU(vdev); + if (idx == VIRTIO_CONFIG_IRQ_IDX) { + return false; + } return vhost_virtqueue_pending(&g->vhost->dev, idx); } @@ -493,6 +496,9 @@ vhost_user_gpu_guest_notifier_mask(VirtIODevice *vdev, int idx, bool mask) { VhostUserGPU *g = VHOST_USER_GPU(vdev); + if (idx == VIRTIO_CONFIG_IRQ_IDX) { + return; + } vhost_virtqueue_mask(&g->vhost->dev, vdev, idx, mask); } |