[PATCH 24/28] kvm tools: Fix virtio-pci endian bug when reading VIRTIO_PCI_QUEUE_NUM

Matt Evans
2011-12-06T03:42:29Z

The field size is currently wrong, read into a 32bit word instead of 16. This
casues trouble when BE.

Signed-off-by: Matt Evans <matt@ozlabs.org>
---
tools/kvm/virtio/pci.c | 3 +--
1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/tools/kvm/virtio/pci.c b/tools/kvm/virtio/pci.c
index 0ae93fb..6b27ff8 100644
--- a/tools/kvm/virtio/pci.c
+++ b/tools/kvm/virtio/pci.c
@@ -116,8 +116,7 @@ static bool virtio_pci__io_in(struct ioport *ioport, struct kvm *kvm, u16 port,
break;
case VIRTIO_PCI_QUEUE_NUM:
val = vtrans->virtio_ops->get_size_vq(kvm, vpci->dev, vpci->queue_selector);
- ioport__write32(data, val);
- break;
+ ioport__write16(data, val);
break;
case VIRTIO_PCI_STATUS:
ioport__write8(data, vpci->status);