[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[PULL v2 07/32] virtio: update queue size on guest write
From: |
Michael S. Tsirkin |
Subject: |
[PULL v2 07/32] virtio: update queue size on guest write |
Date: |
Tue, 7 Jan 2020 02:35:43 -0500 |
Some guests read back queue size after writing it.
Update the size immediatly upon write otherwise
they get confused.
In particular this is the case for seabios.
Reported-by: Roman Kagan <address@hidden>
Suggested-by: Denis Plotnikov <address@hidden>
Cc: address@hidden
Signed-off-by: Michael S. Tsirkin <address@hidden>
---
hw/virtio/virtio-pci.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index c6b47a9c73..e5c759e19e 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -1256,6 +1256,8 @@ static void virtio_pci_common_write(void *opaque, hwaddr
addr,
break;
case VIRTIO_PCI_COMMON_Q_SIZE:
proxy->vqs[vdev->queue_sel].num = val;
+ virtio_queue_set_num(vdev, vdev->queue_sel,
+ proxy->vqs[vdev->queue_sel].num);
break;
case VIRTIO_PCI_COMMON_Q_MSIX:
msix_vector_unuse(&proxy->pci_dev,
--
MST
[Prev in Thread] |
Current Thread |
[Next in Thread] |
- [PULL v2 07/32] virtio: update queue size on guest write,
Michael S. Tsirkin <=