diff options
| author | Lingfeng Yang <lfy@google.com> | 2020-04-16 11:56:27 -0700 |
|---|---|---|
| committer | Alistair Delva <adelva@google.com> | 2020-04-17 15:31:01 -0700 |
| commit | 8c6da983ea97c2d9ee39205e4e6541928b5b53e1 (patch) | |
| tree | 56b34b9131f94a1984139e3bc223763c029ec752 /include/uapi | |
| parent | c2d015d2d8a6e1575369f4cf3de867bceef6e2d4 (diff) | |
CHROMIUM: virtio-gpu: add VIRTIO_GPU_F_RESOURCE_UUID feature
This feature allows the guest to request a UUID from the host for a
particular virtio_gpu resource. The UUID can then be shared with other
virtio devices, to allow the other host devices to access the
virtio_gpu's corresponding host resource.
Signed-off-by: David Stevens <stevensd@chromium.org>
(am from https://patchwork.kernel.org/patch/11431391/)
Fixes:
- Renumber out-of-tree virtio_gpu resource v2 feature bits. Although
that is technically a breaking change with respect to crosvm, all
usage of the bits is currently hidden behind flags which aren't
enabled outside of local builds.
BUG=b:136269340
TEST=boot ARCVM and launch play store
Signed-off-by: Keiichi Watanabe <keiichiw@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/2090952
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
Bug: 153580313
Signed-off-by: Lingfeng Yang <lfy@google.com>
Change-Id: Ie48129c56b521ded1d33c4b4d3ea6ae05104447d
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/virtio_gpu.h | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/include/uapi/linux/virtio_gpu.h b/include/uapi/linux/virtio_gpu.h index f483dff166e3..3c3bb3342b7b 100644 --- a/include/uapi/linux/virtio_gpu.h +++ b/include/uapi/linux/virtio_gpu.h @@ -50,20 +50,24 @@ * VIRTIO_GPU_CMD_GET_EDID */ #define VIRTIO_GPU_F_EDID 1 +/* + * VIRTIO_GPU_CMD_RESOURCE_ASSIGN_UUID + */ +#define VIRTIO_GPU_F_RESOURCE_UUID 2 /* * VIRTIO_GPU_CMD_ALLOCATION_METADATA * VIRTIO_GPU_CMD_RESOURCE_CREATE_V2 */ -#define VIRTIO_GPU_F_RESOURCE_V2 2 +#define VIRTIO_GPU_F_RESOURCE_V2 3 /* * Ability to turn guest pages into host buffers. */ -#define VIRTIO_GPU_F_SHARED_GUEST 3 +#define VIRTIO_GPU_F_SHARED_GUEST 4 /* * Can inject host pages into guest. */ -#define VIRTIO_GPU_F_HOST_COHERENT 4 +#define VIRTIO_GPU_F_HOST_COHERENT 5 enum virtio_gpu_ctrl_type { VIRTIO_GPU_UNDEFINED = 0, @@ -79,6 +83,7 @@ enum virtio_gpu_ctrl_type { VIRTIO_GPU_CMD_GET_CAPSET_INFO, VIRTIO_GPU_CMD_GET_CAPSET, VIRTIO_GPU_CMD_GET_EDID, + VIRTIO_GPU_CMD_RESOURCE_ASSIGN_UUID, /* 3d commands */ VIRTIO_GPU_CMD_CTX_CREATE = 0x0200, @@ -103,6 +108,7 @@ enum virtio_gpu_ctrl_type { VIRTIO_GPU_RESP_OK_CAPSET_INFO, VIRTIO_GPU_RESP_OK_CAPSET, VIRTIO_GPU_RESP_OK_EDID, + VIRTIO_GPU_RESP_OK_RESOURCE_UUID, /* CHROMIUM: legacy responses */ VIRTIO_GPU_RESP_OK_RESOURCE_PLANE_INFO_LEGACY = 0x1104, @@ -441,4 +447,17 @@ enum virtio_gpu_formats { VIRTIO_GPU_FORMAT_R8G8B8X8_UNORM = 134, }; +/* VIRTIO_GPU_CMD_RESOURCE_ASSIGN_UUID */ +struct virtio_gpu_resource_assign_uuid { + struct virtio_gpu_ctrl_hdr hdr; + __le32 resource_id; + __le32 padding; +}; + +/* VIRTIO_GPU_RESP_OK_RESOURCE_UUID */ +struct virtio_gpu_resp_resource_uuid { + struct virtio_gpu_ctrl_hdr hdr; + __u8 uuid[16]; +}; + #endif |