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authorCindy Lu <lulu@redhat.com>2022-12-22 15:04:47 +0800
committerMichael S. Tsirkin <mst@redhat.com>2023-01-08 01:54:22 -0500
commit7d847d0c9b93b91160f40d69a65c904d76f1edd8 (patch)
tree15df50e6f4d4ca368ce07fc0f7b31540ed9512c4 /include/hw/virtio
parent259f3acc1c675dd77ebbdb28a483f5d0220bdbf6 (diff)
virtio: add support for configure interrupt
Add the functions to support the configure interrupt in virtio The function virtio_config_guest_notifier_read will notify the guest if there is an configure interrupt. The function virtio_config_set_guest_notifier_fd_handler is to set the fd hander for the notifier Signed-off-by: Cindy Lu <lulu@redhat.com> Message-Id: <20221222070451.936503-7-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/hw/virtio')
-rw-r--r--include/hw/virtio/virtio.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
index 8266d240cc..4219968fd8 100644
--- a/include/hw/virtio/virtio.h
+++ b/include/hw/virtio/virtio.h
@@ -155,6 +155,7 @@ struct VirtIODevice
AddressSpace *dma_as;
QLIST_HEAD(, VirtQueue) *vector_queues;
QTAILQ_ENTRY(VirtIODevice) next;
+ EventNotifier config_notifier;
};
struct VirtioDeviceClass {
@@ -377,6 +378,9 @@ void virtio_queue_aio_attach_host_notifier_no_poll(VirtQueue *vq, AioContext *ct
void virtio_queue_aio_detach_host_notifier(VirtQueue *vq, AioContext *ctx);
VirtQueue *virtio_vector_first_queue(VirtIODevice *vdev, uint16_t vector);
VirtQueue *virtio_vector_next_queue(VirtQueue *vq);
+EventNotifier *virtio_config_get_guest_notifier(VirtIODevice *vdev);
+void virtio_config_set_guest_notifier_fd_handler(VirtIODevice *vdev,
+ bool assign, bool with_irqfd);
static inline void virtio_add_feature(uint64_t *features, unsigned int fbit)
{