On 08/14/2018 07:25 PM, Marc-André Lureau wrote:
> ping
> On Fri, Jul 13, 2018 at 3:28 PM <marcandre.lureau@xxxxxxxxxx> wrote:
Quite a bit has changed w/r/t qemu_capabilities.{c,h}. Can you please
resync with the top of the tree and repost. Hopefully Pavel or Michal
will be able to take a look at the repost as well since they have more
recent NUMA and Hugepage experiences and that's where this series
starts... Also I understand why things are combined, but the first 3
patches don't seem to be related to vhost-user-gpu, so they should be a
separate series. Although I do understand why they're included due to
qemu_capabilities conflicts for one series or the other.
Since, all I was able to "easily" git am was patch 1, I'll provide a
couple of comments there...
John
>>
>> 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. A few preliminary patches ease
>> and improve shared memory setup, when no explicit domain NUMA
>> configuration is given. Also, if there is no need for file-backed
>> memory, teach libvirt to make use of memfd memory backend, which has
>> better security guarantees and is easier to setup.
>>
>> Review welcome!
>>
>> Marc-André Lureau (17):
>> qemu: setup shared memory without explicit numa configuration
>> qemu: add memory-backend-memfd capability check
>> qemu: use memory-backend-memfd if possible
>> qemu: add vhost-user-gpu capabilities
>> 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 | 5 +-
>> docs/schemas/domaincommon.rng | 1 +
>> src/conf/device_conf.h | 1 +
>> src/conf/domain_conf.c | 4 +-
>> src/conf/domain_conf.h | 1 +
>> src/qemu/Makefile.inc.am | 2 +
>> src/qemu/qemu_capabilities.c | 10 +
>> src/qemu/qemu_capabilities.h | 5 +
>> src/qemu/qemu_command.c | 191 ++++++++---
>> 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.x86_64.xml | 1 +
>> .../fd-memory-no-numa-topology.args | 4 +
>> tests/qemuxml2argvdata/memfd.args | 28 ++
>> tests/qemuxml2argvdata/memfd.xml | 32 ++
>> .../vhost-user-gpu-secondary.args | 34 ++
>> .../vhost-user-gpu-secondary.xml | 38 +++
>> tests/qemuxml2argvdata/vhost-user-vga.args | 31 ++
>> tests/qemuxml2argvdata/vhost-user-vga.xml | 35 ++
>> tests/qemuxml2argvtest.c | 14 +
>> 32 files changed, 877 insertions(+), 51 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.args
>> create mode 100644 tests/qemuxml2argvdata/memfd.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
>>
>> --
>> 2.18.0.129.ge3331758f1
>>
>> --
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>> libvir-list@xxxxxxxxxx
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>
>
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