[PATCH 0/4] support for virtio packed virtqueues

Bjoern Walk posted 4 patches 2 weeks ago
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docs/formatdomain.html.in                     |  8 +++++
docs/schemas/domaincommon.rng                 |  5 +++
src/conf/domain_conf.c                        | 28 ++++++++++++++++
src/conf/domain_conf.h                        |  1 +
src/qemu/qemu_capabilities.c                  |  6 ++++
src/qemu/qemu_capabilities.h                  |  1 +
src/qemu/qemu_command.c                       | 10 ++++++
.../caps_4.2.0.aarch64.xml                    |  1 +
.../caps_4.2.0.x86_64.xml                     |  1 +
.../caps_5.0.0.aarch64.xml                    |  1 +
.../qemucapabilitiesdata/caps_5.0.0.ppc64.xml |  1 +
.../caps_5.0.0.x86_64.xml                     |  1 +
tests/qemuxml2argvdata/virtio-options.args    | 32 ++++++++++---------
tests/qemuxml2argvdata/virtio-options.xml     | 26 +++++++--------
tests/qemuxml2argvtest.c                      |  3 +-
tests/qemuxml2xmltest.c                       |  3 +-
16 files changed, 98 insertions(+), 30 deletions(-)

[PATCH 0/4] support for virtio packed virtqueues

Posted by Bjoern Walk 2 weeks ago
QEMU recently (86044b24e) introduced packed virtqueues for virtio that
supposedly have better cache utilization and performance compared to the
default split queues. So here's a patch set that expose the virtio
parameter as a optional libvirt XML attribute to virtio-backed devices,
e.g.:

    <interface type='user'>
      <mac address='00:11:22:33:44:55'/>
      <model type='virtio'/>
      <driver packed='on'/>
    </interface>

The default value if the attribute is omitted is still 'off' and regular
split virtqueues are used.

Bjoern Walk (4):
  qemu: capabilities: add 'packed' capability
  conf: domain: support for virtio packed option
  qemu: command: support for virtio packed option
  docs: documentation for virtio packed option

 docs/formatdomain.html.in                     |  8 +++++
 docs/schemas/domaincommon.rng                 |  5 +++
 src/conf/domain_conf.c                        | 28 ++++++++++++++++
 src/conf/domain_conf.h                        |  1 +
 src/qemu/qemu_capabilities.c                  |  6 ++++
 src/qemu/qemu_capabilities.h                  |  1 +
 src/qemu/qemu_command.c                       | 10 ++++++
 .../caps_4.2.0.aarch64.xml                    |  1 +
 .../caps_4.2.0.x86_64.xml                     |  1 +
 .../caps_5.0.0.aarch64.xml                    |  1 +
 .../qemucapabilitiesdata/caps_5.0.0.ppc64.xml |  1 +
 .../caps_5.0.0.x86_64.xml                     |  1 +
 tests/qemuxml2argvdata/virtio-options.args    | 32 ++++++++++---------
 tests/qemuxml2argvdata/virtio-options.xml     | 26 +++++++--------
 tests/qemuxml2argvtest.c                      |  3 +-
 tests/qemuxml2xmltest.c                       |  3 +-
 16 files changed, 98 insertions(+), 30 deletions(-)

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2.24.1