From: Marc-André Lureau <marcandre.lureau@xxxxxxxxxx> Hi, This series of patches add support for running a virtio GPU in a seperate process, using vhost-user. The QEMU series "[PATCH v4 00/29] vhost-user for input & GPU" is still under review, and will hopefully land in 3.1. There are several benefits of running the GPU process in an external process, since Mesa is rather heavy on the qemu main loop, and may block for a while or crash. I observe x5 performance improvements with Unigine Heaven 4 benchmark. The external GPU process is started with one end of the vhost-user socket pair, the other end is given to a QEMU chardev. It is also added to the emulator cgroup to restrict its CPU usage. vhost-user requires shared VM memory. The first patches ease and improve shared memory setup, by using memfd. They could be considered seperatly, but that's the setup I'd recommend with vhost-user-gpu. Review welcome! RFCv2: - add new memfd memroyBacking source type - drop the implicit shared memory NUMA setup approach, explicit now required - rebased Marc-André Lureau (16): qemu: add memory-backend-memfd capability check qemu: add memfd memory backing qemu: add vhost-user-gpu capabilities checks domain: add "vhost-user" video type qemu: fill the vhost-user video type capability qemu: check that qemu is vhost-user-vga capable qemu: vhost-user is valid as non-primary video device qemu: validate vhost-user video model qemu: add qemuSecurityStartVhostUserGPU helper qemu: add vhost-user-gpu helper unit qemu: restrict 'virgl=' option to 'virtio' video type qemu: set default address type on vhost-user video model qemu: start/stop the vhost-user-gpu external device qemu: build vhost-user-backend for vhost-user-gpu qemu: build vhost-user-gpu video device arguments tests: add vhost-user-gpu xml2argv tests docs/formatdomain.html.in | 11 +- docs/schemas/domaincommon.rng | 2 + src/conf/device_conf.h | 1 + src/conf/domain_conf.c | 7 +- src/conf/domain_conf.h | 2 + src/qemu/Makefile.inc.am | 2 + src/qemu/qemu_capabilities.c | 8 + src/qemu/qemu_capabilities.h | 3 + src/qemu/qemu_command.c | 135 ++++++-- src/qemu/qemu_domain.c | 8 +- src/qemu/qemu_domain_address.c | 4 +- src/qemu/qemu_extdevice.c | 47 ++- src/qemu/qemu_process.c | 6 +- src/qemu/qemu_security.c | 48 +++ src/qemu/qemu_security.h | 6 + src/qemu/qemu_vhost_user_gpu.c | 318 ++++++++++++++++++ src/qemu/qemu_vhost_user_gpu.h | 48 +++ tests/domaincapsschemadata/full.xml | 1 + .../caps_2.12.0.aarch64.xml | 1 + .../caps_2.12.0.ppc64.xml | 1 + .../caps_2.12.0.s390x.xml | 1 + .../caps_2.12.0.x86_64.xml | 1 + .../qemucapabilitiesdata/caps_3.0.0.ppc64.xml | 1 + .../caps_3.0.0.riscv32.xml | 1 + .../caps_3.0.0.riscv64.xml | 1 + .../caps_3.0.0.x86_64.xml | 1 + tests/qemuxml2argvdata/memfd-memory-numa.args | 27 ++ tests/qemuxml2argvdata/memfd-memory-numa.xml | 33 ++ .../vhost-user-gpu-secondary.args | 33 ++ .../vhost-user-gpu-secondary.xml | 44 +++ tests/qemuxml2argvdata/vhost-user-vga.args | 30 ++ tests/qemuxml2argvdata/vhost-user-vga.xml | 41 +++ tests/qemuxml2argvtest.c | 15 + 33 files changed, 849 insertions(+), 39 deletions(-) create mode 100644 src/qemu/qemu_vhost_user_gpu.c create mode 100644 src/qemu/qemu_vhost_user_gpu.h create mode 100644 tests/qemuxml2argvdata/memfd-memory-numa.args create mode 100644 tests/qemuxml2argvdata/memfd-memory-numa.xml create mode 100644 tests/qemuxml2argvdata/vhost-user-gpu-secondary.args create mode 100644 tests/qemuxml2argvdata/vhost-user-gpu-secondary.xml create mode 100644 tests/qemuxml2argvdata/vhost-user-vga.args create mode 100644 tests/qemuxml2argvdata/vhost-user-vga.xml -- 2.19.0.rc0.48.gb9dfa238d5 -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list
