On Wed, Aug 09, 2023 at 09:50:29AM +0800, Gurchetan Singh wrote: > On Mon, Aug 7, 2023 at 7:24 AM Erico Nunes <[1]ernu...@redhat.com> > wrote: > > Hello, > On 04/08/2023 01:54, Gurchetan Singh wrote: > > Prior versions: > > > > > [2]https://lists.gnu.org/archive/html/qemu-devel/2023-07/msg05801.ht > ml > > > > > [3]https://lists.gnu.org/archive/html/qemu-devel/2023-07/msg02341.ht > ml > > > > > [4]https://patchew.org/QEMU/20230421011223.718-1-gurchetansingh@chro > mium.org/ > > > > Changes since v2: > > - Incorporated review feedback > > > > How to build both rutabaga and gfxstream guest/host libs: > > > > [5]https://crosvm.dev/book/appendix/rutabaga_gfx.html > > > > Branch containing this patch series: > > > > > [6]https://gitlab.freedesktop.org/gurchetansingh/qemu-gfxstream/-/co > mmits/qemu-gfxstream-v3 > I tried this on Fedora with a Fedora guest and I was able to get > Vulkan > headless applications as well as Wayland proxy with sommelier to > work. > If you don't mind, I have a few questions. > I was not able to run Vulkan applications over the Wayland proxy, > only > unaccelerated apps. This seems to be unsupported yet; is actually > unsupported for now or was something missing in my setup? > > Yes, currently this is unsupported. In the near future, I do imagine > 3D accelerated rendering over cross-domain to be a thing (among many > context types, not just gfxstream VK). > Re: using gfxstream VK in Linux distros, depends on your use case. If > you are looking for best performance over virtio on open-source Linux > platforms, perhaps gfxstream Vulkan (or any API virtualization > solution) is not your best bet. The Mesa native context work looks > particularly exciting there: > [7]https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21658
In fact, we will introduce both venus and virtio native context next step with qemu. :-) I am cleanning up the codes will send out the qemu very soon. Thanks, Ray > We are interested in running gfxstream VK in Linux guests, but we > envisage that for reference and testing. For all embedded use cases, > using the host driver in the guest will predominate due to performance > considerations (either through virtio or HW direct / mediated > passthru). > > Also apparently GL/GLES is only supported on Android right now as > you > mentioned, since on Linux the gfxstream guest only installs the > Vulkan > library and icd. What is the plan to support GL on Linux; provide > gfxstream GL guest libraries later or enable Zink or some other > solution? > Then if I understand correctly, Mesa virgl is not used at all with > the > gfxstream solution, so I guess we would need to find a way to ship > the > gfxstream guest libraries too on distributions? > > > > Also I wonder about including all of the the dependencies required > to > get this to build on distributions as well to enable the feature on > distribution-provided qemu, but I guess we can figure this out > later... > And finally out of curiosity, I see that rutabaga also has a > virgl_renderer (and virgl_renderer_next) backend which would then > not > use gfxstream but virglrenderer instead. I wonder if there would be > any > benefit/features in enabling that with qemu later compared to the > current qemu virtio/virglrenderer implementation (if that would make > sense at all)? > > Yeah, maybe later if there's developer interest, rutabaga FFI can > build its virglrenderer bindings in a subsequent release. So far I > don't have time to test, and the most important use case is gfxstream + > Android for Emulator. As ever, patches are welcome. > > Thanks > Erico > > References > > 1. mailto:ernu...@redhat.com > 2. https://lists.gnu.org/archive/html/qemu-devel/2023-07/msg05801.html > 3. https://lists.gnu.org/archive/html/qemu-devel/2023-07/msg02341.html > 4. > https://patchew.org/QEMU/20230421011223.718-1-gurchetansi...@chromium.org/ > 5. https://crosvm.dev/book/appendix/rutabaga_gfx.html > 6. > https://gitlab.freedesktop.org/gurchetansingh/qemu-gfxstream/-/commits/qemu-gfxstream-v3 > 7. https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21658
