From: Wim ten Have <wim.ten.have@xxxxxxxxxx>
Add vcpupin support to virt-install so that it can create guest
domains with statically allocated vcpu pinning towards a given cpuset.
Syntax: to pin vcpu=0 to cpuset="1,3" and vcpu=1 to cpuset=2
--cputune vcpupin0.vcpu=0,vcpupin0.cpuset=1,3,vcpupin1.vcpu=1,vcpupin1.cpuset=2
generates below XML description for the guest domain.
<cputune>
<vcpupin vcpu="0" cpuset="1,3"/>
<vcpupin vcpu="1" cpuset="2"/>
</cputune>
Signed-off-by: Wim ten Have <wim.ten.have@xxxxxxxxxx>
Signed-off-by: Menno Lageman <menno.lageman@xxxxxxxxxx>
---
man/virt-install.pod | 10 ++++++
.../compare/virt-install-singleton-config-2.xml | 6 ++++
tests/clitest.py | 1 +
virtinst/__init__.py | 1 +
virtinst/cli.py | 28 +++++++++++++++
virtinst/cputune.py | 40 ++++++++++++++++++++++
virtinst/guest.py | 2 ++
7 files changed, 88 insertions(+)
create mode 100644 virtinst/cputune.py
diff --git a/man/virt-install.pod b/man/virt-install.pod
index 349e4e6c..e75f517f 100644
--- a/man/virt-install.pod
+++ b/man/virt-install.pod
@@ -255,6 +255,16 @@ Example of passing through the host cpu's cache information.
Use --cpu=? to see a list of all available sub options. Complete details at L<http://libvirt.org/formatdomain.html#elementsCPU>
+=item B<--cputune> OPTIONS
+
+Tune CPU parameters for the guest.
+
+Configure which of the host's physical CPUs the domain VCPU will be pinned to. Example invocation
+
+ --cputune vpcupin0.vcpu=0,vpcupin0.cpuset=0-3,vpcupin1.vcpu=1,vpcupin1.cpuset=4-7
+
+Use --cputune=? to see a list of all available sub options. Complete details at L<http://libvirt.org/formatdomain.html#elementsCPUTuning>
+
=item B<--security> type=TYPE[,label=LABEL][,relabel=yes|no]
Configure domain security driver settings. Type can be either 'static' or
diff --git a/tests/cli-test-xml/compare/virt-install-singleton-config-2.xml b/tests/cli-test-xml/compare/virt-install-singleton-config-2.xml
index 3b9210f5..b25d8c60 100644
--- a/tests/cli-test-xml/compare/virt-install-singleton-config-2.xml
+++ b/tests/cli-test-xml/compare/virt-install-singleton-config-2.xml
@@ -159,6 +159,9 @@
<label>system_u:object_r:svirt_image_t:s0:c100,c200</label>
</seclabel>
<on_lockfailure>ignore</on_lockfailure>
+ <cputune>
+ <vcpupin vcpu="0" cpuset="0-3"/>
+ </cputune>
</domain>
<domain type="kvm">
<name>foobar</name>
@@ -324,4 +327,7 @@
<label>system_u:object_r:svirt_image_t:s0:c100,c200</label>
</seclabel>
<on_lockfailure>ignore</on_lockfailure>
+ <cputune>
+ <vcpupin vcpu="0" cpuset="0-3"/>
+ </cputune>
</domain>
diff --git a/tests/clitest.py b/tests/clitest.py
index a7d38b6d..18513597 100644
--- a/tests/clitest.py
+++ b/tests/clitest.py
@@ -430,6 +430,7 @@ cell0.distances.sibling1.id=1,cell0.distances.sibling1.value=21,\
cell1.distances.sibling0.id=0,cell1.distances.sibling0.value=21,\
cell1.distances.sibling1.id=1,cell1.distances.sibling1.value=10,\
cache.mode=emulate,cache.level=3 \
+--cputune vcpupin0.vcpu=0,vcpupin0.cpuset=0-3 \
--metadata title=my-title,description=my-description,uuid=00000000-1111-2222-3333-444444444444 \
--boot cdrom,fd,hd,network,menu=off,loader=/foo/bar \
--idmap uid_start=0,uid_target=1000,uid_count=10,gid_start=0,gid_target=1000,gid_count=10 \
diff --git a/virtinst/__init__.py b/virtinst/__init__.py
index 175303a5..eb3ec9b3 100644
--- a/virtinst/__init__.py
+++ b/virtinst/__init__.py
@@ -50,6 +50,7 @@ from virtinst.domainmemorybacking import DomainMemorybacking
from virtinst.domainresource import DomainResource
from virtinst.clock import Clock
from virtinst.cpu import CPU, CPUFeature
+from virtinst.cputune import CPUTune
from virtinst.seclabel import Seclabel
from virtinst.pm import PM
from virtinst.idmap import IdMap
diff --git a/virtinst/cli.py b/virtinst/cli.py
index 50b366e6..3d3ac0ac 100644
--- a/virtinst/cli.py
+++ b/virtinst/cli.py
@@ -39,6 +39,7 @@ from virtcli import CLIConfig
from . import util
from .clock import Clock
from .cpu import CPU
+from .cputune import CPUTune
from .deviceaudio import VirtualAudio
from .devicechar import (VirtualChannelDevice, VirtualConsoleDevice,
VirtualSerialDevice, VirtualParallelDevice)
@@ -717,6 +718,8 @@ def add_device_options(devg, sound_back_compat=False):
def add_guest_xml_options(geng):
geng.add_argument("--security", action="append",
help=_("Set domain security driver configuration."))
+ geng.add_argument("--cputune",
+ help=_("Tune CPU parameters for the domain process."))
geng.add_argument("--numatune",
help=_("Tune NUMA policy for the domain process."))
geng.add_argument("--memtune", action="append",
@@ -1562,6 +1565,31 @@ ParserCPU.add_arg("mode", "cache.mode", find_inst_cb=ParserCPU.set_l3_cache_cb)
ParserCPU.add_arg("level", "cache.level", find_inst_cb=ParserCPU.set_l3_cache_cb)
+#####################
+# --cputune parsing #
+#####################
+
+class ParserCPUTune(VirtCLIParser):
+ cli_arg_name = "cputune"
+ objclass = CPUTune
+ remove_first = "model"
+ stub_none = False
+
+ def vcpu_find_inst_cb(self, *args, **kwargs):
+ cliarg = "vcpupin" # vcpupin[0-9]*
+ objpropname = "vcpus"
+ objaddfn = "add_vcpu"
+ cb = self._make_find_inst_cb(cliarg, objpropname, objaddfn)
+ return cb(*args, **kwargs)
+
+_register_virt_parser(ParserCPUTune)
+# Options for CPU.vcpus config
+ParserCPUTune.add_arg("vcpu", "vcpupin[0-9]*.vcpu",
+ find_inst_cb=ParserCPUTune.vcpu_find_inst_cb)
+ParserCPUTune.add_arg("cpuset", "vcpupin[0-9]*.cpuset", can_comma=True,
+ find_inst_cb=ParserCPUTune.vcpu_find_inst_cb)
+
+
###################
# --vcpus parsing #
###################
diff --git a/virtinst/cputune.py b/virtinst/cputune.py
new file mode 100644
index 00000000..df0c3889
--- /dev/null
+++ b/virtinst/cputune.py
@@ -0,0 +1,40 @@
+#
+# Copyright (c) 2018 Oracle and/or its affiliates. All rights reserved.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; If not, see <http://www.gnu.org/licenses/>.
+
+from .xmlbuilder import XMLBuilder, XMLProperty, XMLChildProperty
+
+
+class _VCPUPin(XMLBuilder):
+ """
+ Class for generating <cputune> child <vcpupin> XML
+ """
+ _XML_ROOT_NAME = "vcpupin"
+ _XML_PROP_ORDER = ["vcpu", "cpuset"]
+
+ vcpu = XMLProperty("./@vcpu", is_int=True)
+ cpuset = XMLProperty("./@cpuset")
+
+
+class CPUTune(XMLBuilder):
+ """
+ Class for generating <cpu> XML
+ """
+ _XML_ROOT_NAME = "cputune"
+ vcpus = XMLChildProperty(_VCPUPin)
+ def add_vcpu(self):
+ obj = _VCPUPin(self.conn)
+ self.add_child(obj)
+ return obj
diff --git a/virtinst/guest.py b/virtinst/guest.py
index 903ee188..32acd521 100644
--- a/virtinst/guest.py
+++ b/virtinst/guest.py
@@ -31,6 +31,7 @@ from . import support
from .osdict import OSDB
from .clock import Clock
from .cpu import CPU
+from .cputune import CPUTune
from .device import VirtualDevice
from .deviceaudio import VirtualAudio
from .devicechar import VirtualChannelDevice, VirtualConsoleDevice
@@ -210,6 +211,7 @@ class Guest(XMLBuilder):
features = XMLChildProperty(DomainFeatures, is_single=True)
clock = XMLChildProperty(Clock, is_single=True)
cpu = XMLChildProperty(CPU, is_single=True)
+ cputune = XMLChildProperty(CPUTune, is_single=True)
numatune = XMLChildProperty(DomainNumatune, is_single=True)
pm = XMLChildProperty(PM, is_single=True)
blkiotune = XMLChildProperty(DomainBlkiotune, is_single=True)
--
2.14.3
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