[PATCH 3/5] virtio-gpu api: Add a comment on VIRTIO_GPU_SHM_ID_HOST_VISIBLE

[Gurchetan Singh]

From: Anthoine Bourgeois <anthoine.bourgeois at gmail.com>

This provides a description of how the kernel driver uses the
shmid to determine capabilities.

Signed-off-by: Anthoine Bourgeois <anthoine.bourgeois at gmail.com>
---
 include/uapi/linux/virtio_gpu.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/uapi/linux/virtio_gpu.h b/include/uapi/linux/virtio_gpu.h
index 0ec6b610402c..97523a95781d 100644
--- a/include/uapi/linux/virtio_gpu.h
+++ b/include/uapi/linux/virtio_gpu.h
@@ -115,6 +115,10 @@ enum virtio_gpu_ctrl_type {
 
 enum virtio_gpu_shm_id {
 	VIRTIO_GPU_SHM_ID_UNDEFINED = 0,
+	/*
+	 * VIRTIO_GPU_CMD_RESOURCE_MAP_BLOB
+	 * VIRTIO_GPU_CMD_RESOURCE_UNMAP_BLOB
+	 */
 	VIRTIO_GPU_SHM_ID_HOST_VISIBLE = 1
 };
 
-- 
2.29.2.299.gdc1121823c-goog