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charset="utf-8" This patch introduces support for the VIRTIO_GPU_F_RESOURCE_USERPTR feature in virtio-gpu implementation: - Add VIRTIO_GPU_F_RESOURCE_USERPTR feature flag definition - Implement resource_userptr property as a configurable option - Add VIRTIO_GPU_FLAG_RESOURCE_USERPTR_ENABLED configuration flag - Enable feature negotiation when resource_userptr is enabled Usage: -device virtio-gpu-gl,userptr=3Don This feature allows virtio-gpu to support user pointer resources, enhancing memory management capabilities for GPU virtualization scenarios. Signed-off-by: Honglei Huang --- hw/display/virtio-gpu-base.c | 3 +++ hw/display/virtio-gpu.c | 2 ++ include/hw/virtio/virtio-gpu.h | 3 +++ include/standard-headers/linux/virtio_gpu.h | 2 ++ 4 files changed, 10 insertions(+) diff --git a/hw/display/virtio-gpu-base.c b/hw/display/virtio-gpu-base.c index 7269477a1c..f013a4ece6 100644 --- a/hw/display/virtio-gpu-base.c +++ b/hw/display/virtio-gpu-base.c @@ -264,6 +264,9 @@ virtio_gpu_base_get_features(VirtIODevice *vdev, uint64= _t features, if (virtio_gpu_resource_uuid_enabled(g->conf)) { features |=3D (1 << VIRTIO_GPU_F_RESOURCE_UUID); } + if (virtio_gpu_resource_userptr_enabled(g->conf)) { + features |=3D (1 << VIRTIO_GPU_F_RESOURCE_USERPTR); + } =20 return features; } diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c index 17df148920..0241b44cc8 100644 --- a/hw/display/virtio-gpu.c +++ b/hw/display/virtio-gpu.c @@ -1685,6 +1685,8 @@ static const Property virtio_gpu_properties[] =3D { 256 * MiB), DEFINE_PROP_BIT("blob", VirtIOGPU, parent_obj.conf.flags, VIRTIO_GPU_FLAG_BLOB_ENABLED, false), + DEFINE_PROP_BIT("userptr", VirtIOGPU, parent_obj.conf.flags, + VIRTIO_GPU_FLAG_RESOURCE_USERPTR_ENABLED, false), DEFINE_PROP_SIZE("hostmem", VirtIOGPU, parent_obj.conf.hostmem, 0), DEFINE_PROP_UINT8("x-scanout-vmstate-version", VirtIOGPU, scanout_vmst= ate_version, 2), }; diff --git a/include/hw/virtio/virtio-gpu.h b/include/hw/virtio/virtio-gpu.h index 58e0f91fda..fe98ea0019 100644 --- a/include/hw/virtio/virtio-gpu.h +++ b/include/hw/virtio/virtio-gpu.h @@ -100,6 +100,7 @@ enum virtio_gpu_base_conf_flags { VIRTIO_GPU_FLAG_RUTABAGA_ENABLED, VIRTIO_GPU_FLAG_VENUS_ENABLED, VIRTIO_GPU_FLAG_RESOURCE_UUID_ENABLED, + VIRTIO_GPU_FLAG_RESOURCE_USERPTR_ENABLED, }; =20 #define virtio_gpu_virgl_enabled(_cfg) \ @@ -122,6 +123,8 @@ enum virtio_gpu_base_conf_flags { (_cfg.hostmem > 0) #define virtio_gpu_venus_enabled(_cfg) \ (_cfg.flags & (1 << VIRTIO_GPU_FLAG_VENUS_ENABLED)) +#define virtio_gpu_resource_userptr_enabled(_cfg) \ + (_cfg.flags & (1 << VIRTIO_GPU_FLAG_RESOURCE_USERPTR_ENABLED)) =20 struct virtio_gpu_base_conf { uint32_t max_outputs; diff --git a/include/standard-headers/linux/virtio_gpu.h b/include/standard= -headers/linux/virtio_gpu.h index b85e781a2d..fe36288fe5 100644 --- a/include/standard-headers/linux/virtio_gpu.h +++ b/include/standard-headers/linux/virtio_gpu.h @@ -65,6 +65,8 @@ */ #define VIRTIO_GPU_F_CONTEXT_INIT 4 =20 +#define VIRTIO_GPU_F_RESOURCE_USERPTR 5 + enum virtio_gpu_ctrl_type { VIRTIO_GPU_UNDEFINED =3D 0, =20 --=20 2.34.1