Hi Zewei, Did you manage to make progress on this issue?
I apologize for answering so late, but this email fell through the cracks, Cheers, Stefano On Mon, 20 Nov 2023, ZHANG Zewei wrote: > INTERNAL & PARTNERS > > > Hi，Xen-devel： > > We are trying to implement the igpu sharing function for domU on the > AMD (v2000 series) development board environment, and the > software architecture is xen + ubuntu 22.04 (dom0) + Ubuntu 22.04 (Dom U). We > found that AMD engineers like Mr. Huang @ray.hu...@amd.com > have posted information about virtio-gpu for Xen virtualization to the open > source community and uploaded the relevant code. > > > > And We refer to the relevant information linked below to deploy on my > AMD hardware platform: > > [RFC PATCH 0/5] Add Xen PVH dom0 support for GPU - Huang Rui (kernel.org) > > > > However, when we deploy virtio-GPU related software, we encounter the > following issues: > > 1. My code of xen /qemu /Virglrenderer checkout to the upstream-for-xen or > upstream-for-xen-v2 branch, the xl configuration file is set > as follows, see< ubuntuhvm_virtIO-gpu.cfg>: > > device_model_args_hvm= ["-display", "sdl,gl=on", "-device", > "virtio-vga-gl,context_init=true,blob=true,hostmem=4G"] > > > > 2. After the domU is started with the xl command, qemu and xen hypervisor > will report the following errors: > > xen hypervisor report < xl_dmesg_upstream-for-xen-v2.txt>: > > (XEN) d0v8 Over-allocation for d1: 1048833 > 1048832 > > (XEN) common/memory.c:277:d0v8 Could not allocate order=0 extent: id=1 > memflags=0xc0 (192 of 2048) > > qemu report in log file < qemu-dm-ubuntuU_b.hvm.log>: > > qemu-system-i386: -device > virtio-vga-gl,context_init=true,blob=true,hostmem=4G: xen: failed to populate > ram at 110080000 > > > > 3. I tried to start pvh dom0 but it didn't work, it looks the same > regardless of whether I'm using upstream-for-xen-v2 or > upstream-for-xen branch linux ： > > Logs in attachment:< serial_xen_hypervisor-linux-upstream-for-xen-v2.txt> > > > > > > So I have some questions for you : > > 1. Does Dom 0 need to be configured with PVH for VirtIO-GPU? > > 2. What may cause the above issues? > > > > We look forward to hearing from you! > > > > Thanks & Best regards! > > > > > > > > > > > > > 5acXjzUk > > >
