From: Honglei Huang <[email protected]> Add a new resource for blob resource, called userptr, used for let host access guest user space memory, to acquire buffer based userptr feature in virtio GPU.
- New flag VIRTIO_GPU_BLOB_FLAG_USE_USERPTR used in blob create to indicate the blob create ioctl is used for create a userptr blob resource. - VIRTIO_GPU_BLOB_FLAG_USERPTR_RDONLY: Indicates that the user pointer resource is read-only. Signed-off-by: Honglei Huang <[email protected]> --- include/uapi/linux/virtio_gpu.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/uapi/linux/virtio_gpu.h b/include/uapi/linux/virtio_gpu.h index fbd1838d6..436c8aa25 100644 --- a/include/uapi/linux/virtio_gpu.h +++ b/include/uapi/linux/virtio_gpu.h @@ -406,6 +406,8 @@ struct virtio_gpu_resource_create_blob { #define VIRTIO_GPU_BLOB_FLAG_USE_MAPPABLE 0x0001 #define VIRTIO_GPU_BLOB_FLAG_USE_SHAREABLE 0x0002 #define VIRTIO_GPU_BLOB_FLAG_USE_CROSS_DEVICE 0x0004 +#define VIRTIO_GPU_BLOB_FLAG_USE_USERPTR 0x0008 +#define VIRTIO_GPU_BLOB_FLAG_USERPTR_RDONLY 0x0010 /* zero is invalid blob mem */ __le32 blob_mem; __le32 blob_flags; -- 2.34.1
