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| author | Cindy Lu <lulu@redhat.com> | 2022-12-22 15:04:42 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2023-01-08 01:54:22 -0500 |
| commit | 544f0278afcab2bebab61b14e4c2c58e65911f5b (patch) | |
| tree | ba1f9052a42d1e1d0f714d8dd56598dabdcd5938 /include | |
| parent | c9bdc449f97422e62dc802fd2cbe11b840195595 (diff) | |
| download | qemu-544f0278afcab2bebab61b14e4c2c58e65911f5b.zip qemu-544f0278afcab2bebab61b14e4c2c58e65911f5b.tar.gz qemu-544f0278afcab2bebab61b14e4c2c58e65911f5b.tar.bz2 | |
virtio: introduce macro VIRTIO_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: <20221222070451.936503-2-lulu@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/hw/virtio/virtio.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h index 24561e9..8266d24 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) |