Hi Jan, Roger, Stefano, Andrew, Sorry to late response, I was fully occupied by another problem last week. And I will give the reply one by one in the mail tomorrow. Thanks for your patience. :-)
Thanks, Ray On Sun, Mar 12, 2023 at 03:54:49PM +0800, Huang, Ray wrote: > Hi all, > > In graphic world, the 3D applications/games are runing based on open > graphic libraries such as OpenGL and Vulkan. Mesa is the Linux > implemenatation of OpenGL and Vulkan for multiple hardware platforms. > Because the graphic libraries would like to have the GPU hardware > acceleration. In virtualization world, virtio-gpu and passthrough-gpu are > two of gpu virtualization technologies. > > Current Xen only supports OpenGL (virgl: > https://docs.mesa3d.org/drivers/virgl.html) for virtio-gpu and passthrough > gpu based on PV dom0 for x86 platform. Today, we would like to introduce > Vulkan (venus: https://docs.mesa3d.org/drivers/venus.html) and another > OpenGL on Vulkan (zink: https://docs.mesa3d.org/drivers/zink.html) support > for VirtIO GPU on Xen. These functions are supported on KVM at this moment, > but so far, they are not supported on Xen. And we also introduce the PCIe > passthrough (GPU) function based on PVH dom0 for AMD x86 platform. > > These supports required multiple repositories changes on kernel, xen, qemu, > mesa, and virglrenderer. Please check below branches: > > Kernel: > https://git.kernel.org/pub/scm/linux/kernel/git/rui/linux.git/log/?h=upstream-fox-xen > Xen: https://gitlab.com/huangrui123/xen/-/commits/upstream-for-xen > QEMU: https://gitlab.com/huangrui123/qemu/-/commits/upstream-for-xen > Mesa: https://gitlab.freedesktop.org/rui/mesa/-/commits/upstream-for-xen > Virglrenderer: > https://gitlab.freedesktop.org/rui/virglrenderer/-/commits/upstream-for-xen > > In xen part, we mainly add the PCIe passthrough support on PVH dom0. It's > using the QEMU to passthrough the GPU device into guest HVM domU. And > mainly work is to transfer the interrupt by using gsi, vector, and pirq. > > Below are the screenshot of these functions, please take a look. > > Venus: > https://drive.google.com/file/d/1_lPq6DMwHu1JQv7LUUVRx31dBj0HJYcL/view?usp=share_link > > Zink: > https://drive.google.com/file/d/1FxLmKu6X7uJOxx1ZzwOm1yA6IL5WMGzd/view?usp=share_link > > Passthrough GPU: > https://drive.google.com/file/d/17onr5gvDK8KM_LniHTSQEI2hGJZlI09L/view?usp=share_link > > We are working to write the documentation that describe how to verify these > functions in the xen wiki page. And will update it in the future version. > > Thanks, > Ray > > Chen Jiqian (5): > vpci: accept BAR writes if dom0 is PVH > x86/pvh: shouldn't check pirq flag when map pirq in PVH > x86/pvh: PVH dom0 also need PHYSDEVOP_setup_gsi call > tools/libs/call: add linux os call to get gsi from irq > tools/libs/light: pci: translate irq to gsi > > Roger Pau Monne (1): > x86/pvh: report ACPI VFCT table to dom0 if present > > tools/include/xen-sys/Linux/privcmd.h | 7 +++++++ > tools/include/xencall.h | 2 ++ > tools/include/xenctrl.h | 2 ++ > tools/libs/call/core.c | 5 +++++ > tools/libs/call/libxencall.map | 2 ++ > tools/libs/call/linux.c | 14 ++++++++++++++ > tools/libs/call/private.h | 9 +++++++++ > tools/libs/ctrl/xc_physdev.c | 4 ++++ > tools/libs/light/libxl_pci.c | 1 + > xen/arch/x86/hvm/dom0_build.c | 1 + > xen/arch/x86/hvm/hypercall.c | 3 +-- > xen/drivers/vpci/header.c | 2 +- > xen/include/acpi/actbl3.h | 1 + > 13 files changed, 50 insertions(+), 3 deletions(-) > > -- > 2.25.1 >
