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[v3,4/9] kvmtool: add queue endianness initializer

Message ID 1398363443-3764-5-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 
Add a utility function that transfers the endianness sampled
at device reset time to a queue being set up.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
---
 tools/kvm/include/kvm/virtio.h | 7 +++++++
 1 file changed, 7 insertions(+)
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Patch

diff --git a/tools/kvm/include/kvm/virtio.h b/tools/kvm/include/kvm/virtio.h
index 1180a3e..8a9eab5 100644
--- a/tools/kvm/include/kvm/virtio.h
+++ b/tools/kvm/include/kvm/virtio.h
@@ -28,6 +28,7 @@  struct virt_queue {
 	   It's where we assume the next request index is at.  */
 	u16		last_avail_idx;
 	u16		last_used_signalled;
+	u16		endian;
 };
 
 /*
@@ -165,4 +166,10 @@  static inline void *virtio_get_vq(struct kvm *kvm, u32 pfn, u32 page_size)
 	return guest_flat_to_host(kvm, (u64)pfn * page_size);
 }
 
+static inline void virtio_init_device_vq(struct virtio_device *vdev,
+					 struct virt_queue *vq)
+{
+	vq->endian = vdev->endian;
+}
+
 #endif /* KVM__VIRTIO_H */