On 2/28/25 12:36 AM, Honglei Huang wrote: > From: Honglei Huang <Honglei1.Huang@xxxxxxx> > > 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. > > - The capset VIRTIO_GPU_CAPSET_HSAKMT used for context init, > in this series patches only HSAKMT context can use the userptr > feature. HSAKMT is a GPU compute library in HSA stack, like > the role libdrm in mesa stack. Userptr should not be limited to HSMKMT contexts. Userptr can accelerate shm buffers by avoiding a copy from guest to host, and it can be implemented using grant tables on Xen. -- Sincerely, Demi Marie Obenour (she/her/hers)
