diff options
Diffstat (limited to 'hw/virtio/virtio-mmio.c')
| -rw-r--r-- | hw/virtio/virtio-mmio.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/hw/virtio/virtio-mmio.c b/hw/virtio/virtio-mmio.c index 94d934c44b..872f2cd237 100644 --- a/hw/virtio/virtio-mmio.c +++ b/hw/virtio/virtio-mmio.c @@ -65,6 +65,19 @@ static void virtio_mmio_stop_ioeventfd(VirtIOMMIOProxy *proxy) virtio_bus_stop_ioeventfd(&proxy->bus); } +static void virtio_mmio_soft_reset(VirtIOMMIOProxy *proxy) +{ + int i; + + if (proxy->legacy) { + return; + } + + for (i = 0; i < VIRTIO_QUEUE_MAX; i++) { + proxy->vqs[i].enabled = 0; + } +} + static uint64_t virtio_mmio_read(void *opaque, hwaddr offset, unsigned size) { VirtIOMMIOProxy *proxy = (VirtIOMMIOProxy *)opaque; @@ -295,8 +308,9 @@ static void virtio_mmio_write(void *opaque, hwaddr offset, uint64_t value, break; case VIRTIO_MMIO_QUEUE_NUM: trace_virtio_mmio_queue_write(value, VIRTQUEUE_MAX_SIZE); + virtio_queue_set_num(vdev, vdev->queue_sel, value); + if (proxy->legacy) { - virtio_queue_set_num(vdev, vdev->queue_sel, value); virtio_queue_update_rings(vdev, vdev->queue_sel); } else { proxy->vqs[vdev->queue_sel].num = value; @@ -378,6 +392,7 @@ static void virtio_mmio_write(void *opaque, hwaddr offset, uint64_t value, if (vdev->status == 0) { virtio_reset(vdev); + virtio_mmio_soft_reset(proxy); } break; case VIRTIO_MMIO_QUEUE_DESC_LOW: |