Patch to include new Venus/Virtio Vulkan Driver in mesa packages. This lets you use Vulkan 3D graphics capabilities from a virtual machine like Crostini on ChromeOS

arch_lib32_mesa_virtio.patch

commit 0907c0b16eb95bedc89f6131a0723cbb17ca862d
Author: Spundun Bhatt <spundun@google.com>
Date:   Sat Jun 11 07:45:05 2022 -0700

    Include virtio driver in lib32-mesa

diff --git a/trunk/PKGBUILD b/trunk/PKGBUILD
index 944a3c4..1b9f886 100644
--- a/trunk/PKGBUILD
+++ b/trunk/PKGBUILD
@@ -4,7 +4,7 @@
 # Contributor: Andreas Radke <andyrtr@archlinux.org>
 
 pkgbase=lib32-mesa
-pkgname=('lib32-vulkan-mesa-layers' 'lib32-opencl-mesa' 'lib32-vulkan-intel' 'lib32-vulkan-radeon' 'lib32-libva-mesa-driver' 'lib32-mesa-vdpau' 'lib32-mesa')
+pkgname=('lib32-vulkan-mesa-layers' 'lib32-opencl-mesa' 'lib32-vulkan-intel' 'lib32-vulkan-radeon' 'lib32-vulkan-virtio' 'lib32-libva-mesa-driver' 'lib32-mesa-vdpau' 'lib32-mesa')
 pkgdesc="An open-source implementation of the OpenGL specification (32-bit)"
 pkgver=22.1.2
 pkgrel=1
@@ -60,7 +60,7 @@ END
     -D b_ndebug=true \
     -D platforms=x11,wayland \
     -D gallium-drivers=r300,r600,radeonsi,nouveau,virgl,svga,swrast,iris,crocus,zink \
-    -D vulkan-drivers=amd,intel \
+    -D vulkan-drivers=amd,intel,virtio-experimental \
     -D vulkan-layers=device-select,intel-nullhw,overlay \
     -D dri3=enabled \
     -D egl=enabled \
@@ -160,6 +160,19 @@ package_lib32-vulkan-radeon() {
   install -m644 -Dt "${pkgdir}/usr/share/licenses/${pkgname}" LICENSE
 }
 
+package_lib32-vulkan-virtio() {
+  pkgdesc="Venus Vulkan mesa driver (32-bit)"
+  depends=('lib32-wayland' 'lib32-libx11' 'lib32-libxshmfence' 'lib32-libdrm' 'lib32-zstd'
+           'lib32-systemd')
+  optdepends=('lib32-vulkan-mesa-layers: additional vulkan layers')
+  provides=('lib32-vulkan-driver')
+
+  _install fakeinstall/usr/share/vulkan/icd.d/virtio_icd*.json
+  _install fakeinstall/usr/lib32/libvulkan_virtio.so
+
+  install -m644 -Dt "${pkgdir}/usr/share/licenses/${pkgname}" LICENSE
+}
+
 package_lib32-libva-mesa-driver() {
   pkgdesc="VA-API implementation for gallium (32-bit)"
   depends=('lib32-libdrm' 'lib32-libx11' 'lib32-llvm-libs' 'lib32-expat' 'lib32-libelf'

arch_mesa_virtio.patch

commit 61ab00be87c889e3811c5e775e7e3bed93f4c5a7
Author: Spundun Bhatt <spundun@google.com>
Date:   Fri Jun 10 10:12:05 2022 -0700

    Add virtio driver to mesa

diff --git a/trunk/PKGBUILD b/trunk/PKGBUILD
index 57016b19024..cc0a0b31260 100644
--- a/trunk/PKGBUILD
+++ b/trunk/PKGBUILD
@@ -4,7 +4,7 @@
 # Contributor: Andreas Radke <andyrtr@archlinux.org>
 
 pkgbase=mesa
-pkgname=('vulkan-mesa-layers' 'opencl-mesa' 'vulkan-intel' 'vulkan-radeon' 'vulkan-swrast' 'libva-mesa-driver' 'mesa-vdpau' 'mesa')
+pkgname=('vulkan-mesa-layers' 'opencl-mesa' 'vulkan-intel' 'vulkan-radeon' 'vulkan-swrast' 'vulkan-virtio' 'libva-mesa-driver' 'mesa-vdpau' 'mesa')
 pkgdesc="An open-source implementation of the OpenGL specification"
 pkgver=22.1.2
 pkgrel=1
@@ -46,7 +46,7 @@ build() {
     -D b_ndebug=true \
     -D platforms=x11,wayland \
     -D gallium-drivers=r300,r600,radeonsi,nouveau,virgl,svga,swrast,iris,crocus,zink,d3d12 \
-    -D vulkan-drivers=amd,intel,swrast \
+    -D vulkan-drivers=amd,intel,swrast,virtio-experimental \
     -D vulkan-layers=device-select,intel-nullhw,overlay \
     -D dri3=enabled \
     -D egl=enabled \
@@ -144,6 +144,18 @@ package_vulkan-radeon() {
   install -m644 -Dt "${pkgdir}/usr/share/licenses/${pkgname}" LICENSE
 }
 
+package_vulkan-virtio() {
+  pkgdesc="Venus Vulkan mesa driver for Virtual Machines"
+  depends=('wayland' 'libx11' 'libxshmfence' 'libdrm' 'zstd' 'systemd-libs')
+  optdepends=('vulkan-mesa-layers: additional vulkan layers')
+  provides=('vulkan-driver')
+
+  _install fakeinstall/usr/share/vulkan/icd.d/virtio_icd*.json
+  _install fakeinstall/usr/lib/libvulkan_virtio.so
+
+  install -m644 -Dt "${pkgdir}/usr/share/licenses/${pkgname}" LICENSE
+}
+
 package_vulkan-swrast() {
   pkgdesc="Vulkan software rasteriser driver"
   depends=('wayland' 'libx11' 'libxshmfence' 'libdrm' 'zstd' 'llvm-libs' 'systemd-libs' 'libunwind')