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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Jan 2026 08:39:08.0998 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: b95aed3f-a266-4b91-bf45-08de54dab6e7 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[satlexmb07.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BN2PEPF0000449D.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY5PR12MB4228 Content-Type: text/plain; charset="utf-8" From: Honglei Huang 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 --- 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_gp= u.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; --=20 2.34.1