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[v3,6/9] kvmtool: convert 9p backend to support bi-endianness

Message ID 1398363443-3764-7-git-send-email-marc.zyngier@arm.com (mailing list archive)
State New, archived
Headers show

Commit Message

Marc Zyngier April 24, 2014, 6:17 p.m. UTC 
Configure the queues to follow the guest endianness, and make sure
the configuration space is doing the same.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
---
 tools/kvm/virtio/9p.c | 3 +++
 1 file changed, 3 insertions(+)
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Patch

diff --git a/tools/kvm/virtio/9p.c b/tools/kvm/virtio/9p.c
index 847eddb..9073a1e 100644
--- a/tools/kvm/virtio/9p.c
+++ b/tools/kvm/virtio/9p.c
@@ -1252,8 +1252,10 @@  static u32 get_host_features(struct kvm *kvm, void *dev)
 static void set_guest_features(struct kvm *kvm, void *dev, u32 features)
 {
 	struct p9_dev *p9dev = dev;
+	struct virtio_9p_config *conf = p9dev->config;
 
 	p9dev->features = features;
+	conf->tag_len = virtio_host_to_guest_u16(&p9dev->vdev, conf->tag_len);
 }
 
 static int init_vq(struct kvm *kvm, void *dev, u32 vq, u32 page_size, u32 align,
@@ -1272,6 +1274,7 @@  static int init_vq(struct kvm *kvm, void *dev, u32 vq, u32 page_size, u32 align,
 	job		= &p9dev->jobs[vq];
 
 	vring_init(&queue->vring, VIRTQUEUE_NUM, p, align);
+	virtio_init_device_vq(&p9dev->vdev, queue);
 
 	*job		= (struct p9_dev_job) {
 		.vq		= queue,