Add binding API to set iofd/irqfd support.
Will be used by vhost.
Signed-off-by: Michael S. Tsirkin<address@hidden>
---
hw/virtio.c | 13 ++++++++++---
hw/virtio.h | 4 ++++
2 files changed, 14 insertions(+), 3 deletions(-)
diff --git a/hw/virtio.c b/hw/virtio.c
index 8e3c9ad..b9ec863 100644
--- a/hw/virtio.c
+++ b/hw/virtio.c
@@ -572,6 +572,12 @@ VirtQueue *virtio_add_queue(VirtIODevice *vdev, int
queue_size,
return&vdev->vq[i];
}
+void virtio_irq(VirtIODevice *vdev, VirtQueue *vq)
+{
+ vdev->isr |= 0x01;
+ virtio_notify_vector(vdev, vq->vector);
+}
+
void virtio_notify(VirtIODevice *vdev, VirtQueue *vq)
{
/* Make sure used ring is updated before we check NO_INTERRUPT. */
@@ -582,8 +588,7 @@ void virtio_notify(VirtIODevice *vdev, VirtQueue *vq)
(vq->inuse || vring_avail_idx(vq) != vq->last_avail_idx)))
return;
- vdev->isr |= 0x01;
- virtio_notify_vector(vdev, vq->vector);
+ virtio_irq(vdev, vq);
}
void virtio_notify_config(VirtIODevice *vdev)
@@ -696,8 +701,10 @@ VirtIODevice *virtio_common_init(const char *name,
uint16_t device_id,
vdev->queue_sel = 0;
vdev->config_vector = VIRTIO_NO_VECTOR;
vdev->vq = qemu_mallocz(sizeof(VirtQueue) * VIRTIO_PCI_QUEUE_MAX);
- for(i = 0; i< VIRTIO_PCI_QUEUE_MAX; i++)
+ for(i = 0; i< VIRTIO_PCI_QUEUE_MAX; i++) {
vdev->vq[i].vector = VIRTIO_NO_VECTOR;
+ vdev->vq[i].vdev = vdev;
+ }
vdev->name = name;
vdev->config_len = config_size;
diff --git a/hw/virtio.h b/hw/virtio.h
index ca840e1..193b3f9 100644
--- a/hw/virtio.h
+++ b/hw/virtio.h
@@ -88,6 +88,8 @@ typedef struct {
int (*load_config)(void * opaque, QEMUFile *f);
int (*load_queue)(void * opaque, int n, QEMUFile *f);
unsigned (*get_features)(void * opaque);
+ int (*set_irqfd)(void * opaque, int n, int fd, bool assigned);
+ int (*set_queuefd)(void * opaque, int n, int fd, bool assigned);