[libvirt] [PATCH 0/2] qemu: add vhost-scsi-pci support

Nicholas A. Bellinger nab at linux-iscsi.org
Thu Jul 24 03:24:12 UTC 2014


From: Nicholas Bellinger <nab at linux-iscsi.org>

Hi Daniel & Co,

The following is the patch series to add support for vhost-scsi-pci
from QEMU >= v1.5.x into libvirt.  It includes proper support for
passing a pre-opened vhostfd into vhost-scsi, which is required in
order to properly support nova performing a device_add for adding
a individual vhost-scsi-pci WWPN endpoint -> SCSI controller.

The logic closely follows what vhost-net already does in order to
allow a child qemu process to interact with the vhost-scsi character
device for registering vhost memory, setting vhost-scsi endpoints,
etc.

This code has been tested using openstack nova volume-attach, using
a Juno v2 development head from 07192014.

Thank you,

--nab

Mike Perez (1):
  qemu: add vhost-scsi-pci definitions

Nicholas Bellinger (1):
  qemu: add support vhost-scsi-pci for device_add hotplug

 Makefile.am                                        |    2 +-
 docs/formatdomain.html.in                          |   20 ++--
 docs/schemas/domaincommon.rng                      |    5 +
 src/conf/domain_conf.c                             |   20 +++-
 src/conf/domain_conf.h                             |    2 +
 src/qemu/qemu_capabilities.c                       |    2 +
 src/qemu/qemu_capabilities.h                       |    1 +
 src/qemu/qemu_command.c                            |  115 ++++++++++++++++++--
 src/qemu/qemu_command.h                            |    8 +-
 src/qemu/qemu_hotplug.c                            |   47 +++++++-
 src/qemu/qemu_monitor.c                            |   24 ++++
 src/qemu/qemu_monitor.h                            |    4 +
 src/vmx/vmx.c                                      |    1 +
 tests/qemucapabilitiesdata/caps_1.5.3-1.caps       |    1 +
 tests/qemucapabilitiesdata/caps_1.6.0-1.caps       |    1 +
 tests/qemucapabilitiesdata/caps_1.6.50-1.caps      |    1 +
 .../qemuxml2argv-disk-vhost-scsi-cmd_per_lun.args  |    9 ++
 .../qemuxml2argv-disk-vhost-scsi-cmd_per_lun.xml   |   29 +++++
 .../qemuxml2argv-disk-vhost-scsi-max_sectors.args  |    9 ++
 .../qemuxml2argv-disk-vhost-scsi-max_sectors.xml   |   29 +++++
 .../qemuxml2argv-disk-vhost-scsi-num_queues.args   |    9 ++
 .../qemuxml2argv-disk-vhost-scsi-num_queues.xml    |   29 +++++
 .../qemuxml2argv-disk-vhost-scsi-wwpn.args         |    9 ++
 .../qemuxml2argv-disk-vhost-scsi-wwpn.xml          |   29 +++++
 tests/qemuxml2argvtest.c                           |   12 ++
 tests/qemuxml2xmltest.c                            |    4 +
 26 files changed, 399 insertions(+), 23 deletions(-)
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-vhost-scsi-cmd_per_lun.args
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-vhost-scsi-cmd_per_lun.xml
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-vhost-scsi-max_sectors.args
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-vhost-scsi-max_sectors.xml
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-vhost-scsi-num_queues.args
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-vhost-scsi-num_queues.xml
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-vhost-scsi-wwpn.args
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-vhost-scsi-wwpn.xml

-- 
1.7.9.5




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