[UNIKRAFT PATCH RFCv3 30/32] plat/virtio_mmio: Fix virtqueue size for virtio 9p device

[Jia He <justin.he@xxxxxxx>]

For virtio 9p, the virtqueue size is 128 statically. Without this patch,
virtio 9p device can't be initialized in arm64 kvm plat.

Signed-off-by: Jia He <justin.he@xxxxxxx>
---
 plat/drivers/virtio/virtio_mmio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/plat/drivers/virtio/virtio_mmio.c 
b/plat/drivers/virtio/virtio_mmio.c
index be9e59d..dc5c6c2 100644
--- a/plat/drivers/virtio/virtio_mmio.c
+++ b/plat/drivers/virtio/virtio_mmio.c
@@ -309,7 +309,7 @@ static struct virtqueue *vm_setup_vq(struct virtio_dev 
*vdev,
        virtio_cwrite32(vm_dev->base, VIRTIO_MMIO_QUEUE_SEL, queue_id);
 
        /* Activate the queue */
-       virtio_cwrite32(vm_dev->base, VIRTIO_MMIO_QUEUE_NUM, 
(__u32)virtqueue_vring_get_num(vq));
+       virtio_cwrite32(vm_dev->base, VIRTIO_MMIO_QUEUE_NUM, num_desc);
        if (vm_dev->version == 1) {
 
                virtio_cwrite32(vm_dev->base, VIRTIO_MMIO_QUEUE_ALIGN, 
__PAGE_SIZE);
-- 
2.17.1