External/libvirt
1
0
Fork 0
mirror of https://gitlab.com/libvirt/libvirt.git synced 2024-09-19 22:21:27 +00:00
Code Issues Packages Projects Releases Wiki Activity
f0fa9080d4
libvirt/src/qemu/qemu_cgroup.h

72 lines
2.8 KiB
C
Raw Normal View History

Move QEMU cgroup helper code out of the QEMU driver The QEMU driver file is far too large. Move all the cgroup helper code out into a separate file. No functional change. * src/qemu/qemu_cgroup.c, src/qemu/qemu_cgroup.h, src/Makefile.am: Add cgroup helper file * src/qemu/qemu_driver.c: Delete cgroup code
2010-12-16 16:10:54 +00:00
/*
* qemu_cgroup.h: QEMU cgroup management
*
qemu: leave restricting cpuset.mems after initialization When domain is started with numatune memory mode strict and the nodeset does not include host NUMA node with DMA and DMA32 zones, KVM initialization fails. This is because cgroup restrict even kernel allocations. We are already doing numa_set_membind() which does the same thing, only it does not restrict kernel allocations. This patch leaves the userspace numa_set_membind() in place and moves the cpuset.mems setting after the point where monitor comes up, but before vcpu and emulator sub-groups are created. Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2014-07-08 07:59:49 +00:00
* Copyright (C) 2006-2007, 2009-2014 Red Hat, Inc.
Move QEMU cgroup helper code out of the QEMU driver The QEMU driver file is far too large. Move all the cgroup helper code out into a separate file. No functional change. * src/qemu/qemu_cgroup.c, src/qemu/qemu_cgroup.h, src/Makefile.am: Add cgroup helper file * src/qemu/qemu_driver.c: Delete cgroup code
2010-12-16 16:10:54 +00:00
* Copyright (C) 2006 Daniel P. Berrange
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
maint: fix up copyright notice inconsistencies https://www.gnu.org/licenses/gpl-howto.html recommends that the 'If not, see <url>.' phrase be a separate sentence. * tests/securityselinuxhelper.c: Remove doubled line. * tests/securityselinuxtest.c: Likewise. * globally: s/; If/. If/
2012-09-20 22:30:55 +00:00
* License along with this library. If not, see
Desert the FSF address in copyright Per the FSF address could be changed from time to time, and GNU recommends the following now: (http://www.gnu.org/licenses/gpl-howto.html) You should have received a copy of the GNU General Public License along with Foobar. If not, see <http://www.gnu.org/licenses/>. This patch removes the explicit FSF address, and uses above instead (of course, with inserting 'Lesser' before 'General'). Except a bunch of files for security driver, all others are changed automatically, the copyright for securify files are not complete, that's why to do it manually: src/security/security_selinux.h src/security/security_driver.h src/security/security_selinux.c src/security/security_apparmor.h src/security/security_apparmor.c src/security/security_driver.c
2012-07-21 10:06:23 +00:00
* <http://www.gnu.org/licenses/>.
Move QEMU cgroup helper code out of the QEMU driver The QEMU driver file is far too large. Move all the cgroup helper code out into a separate file. No functional change. * src/qemu/qemu_cgroup.c, src/qemu/qemu_cgroup.h, src/Makefile.am: Add cgroup helper file * src/qemu/qemu_driver.c: Delete cgroup code
2010-12-16 16:10:54 +00:00
*
* Author: Daniel P. Berrange <berrange@redhat.com>
*/
#ifndef __QEMU_CGROUP_H__
# define __QEMU_CGROUP_H__
Rename hostusb.{c,h} to virusb.{c,h}
2012-12-12 17:04:51 +00:00
# include "virusb.h"
Store a virCgroupPtr instance in qemuDomainObjPrivatePtr Instead of calling virCgroupForDomain every time we need the virCgrouPtr instance, just do it once at Vm startup and cache a reference to the object in qemuDomainObjPrivatePtr until shutdown of the VM. Removing the virCgroupPtr from the QEMU driver state also means we don't have stale mount info, if someone mounts the cgroups filesystem after libvirtd has been started Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-03-21 14:40:29 +00:00
# include "vircgroup.h"
Move QEMU cgroup helper code out of the QEMU driver The QEMU driver file is far too large. Move all the cgroup helper code out into a separate file. No functional change. * src/qemu/qemu_cgroup.c, src/qemu/qemu_cgroup.h, src/Makefile.am: Add cgroup helper file * src/qemu/qemu_driver.c: Delete cgroup code
2010-12-16 16:10:54 +00:00
# include "domain_conf.h"
# include "qemu_conf.h"
qemu: cgroup: Add functions to set cgroup image stuff on individual imgs Add functions that will allow to set all the required cgroup stuff on individual images taking a virStorageSourcePtr. Also convert functions designed to setup whole backing chain to take advantage of the change.
2014-06-18 11:09:05 +00:00
int qemuSetImageCgroup(virDomainObjPtr vm,
virStorageSourcePtr src,
bool deny);
blockjob: remove unused parameters after previous patch Minor cleanup made possible by previous simplifications. * src/qemu/qemu_cgroup.h (qemuSetupDiskCgroup) (qemuTeardownDiskCgroup): Alter signature. * src/qemu/qemu_cgroup.c (qemuSetupDiskCgroup) (qemuTeardownDiskCgroup, qemuSetupCgroup): Update all uses. * src/qemu/qemu_hotplug.c (qemuDomainDetachPciDiskDevice) (qemuDomainDetachDiskDevice): Likewise. * src/qemu/qemu_driver.c (qemuDomainAttachDeviceDiskLive) (qemuDomainChangeDiskMediaLive) (qemuDomainSnapshotCreateSingleDiskActive) (qemuDomainSnapshotUndoSingleDiskActive): Likewise.
2012-10-17 20:22:24 +00:00
int qemuSetupDiskCgroup(virDomainObjPtr vm,
Move QEMU cgroup helper code out of the QEMU driver The QEMU driver file is far too large. Move all the cgroup helper code out into a separate file. No functional change. * src/qemu/qemu_cgroup.c, src/qemu/qemu_cgroup.h, src/Makefile.am: Add cgroup helper file * src/qemu/qemu_driver.c: Delete cgroup code
2010-12-16 16:10:54 +00:00
virDomainDiskDefPtr disk);
blockjob: remove unused parameters after previous patch Minor cleanup made possible by previous simplifications. * src/qemu/qemu_cgroup.h (qemuSetupDiskCgroup) (qemuTeardownDiskCgroup): Alter signature. * src/qemu/qemu_cgroup.c (qemuSetupDiskCgroup) (qemuTeardownDiskCgroup, qemuSetupCgroup): Update all uses. * src/qemu/qemu_hotplug.c (qemuDomainDetachPciDiskDevice) (qemuDomainDetachDiskDevice): Likewise. * src/qemu/qemu_driver.c (qemuDomainAttachDeviceDiskLive) (qemuDomainChangeDiskMediaLive) (qemuDomainSnapshotCreateSingleDiskActive) (qemuDomainSnapshotUndoSingleDiskActive): Likewise.
2012-10-17 20:22:24 +00:00
int qemuTeardownDiskCgroup(virDomainObjPtr vm,
Move QEMU cgroup helper code out of the QEMU driver The QEMU driver file is far too large. Move all the cgroup helper code out into a separate file. No functional change. * src/qemu/qemu_cgroup.c, src/qemu/qemu_cgroup.h, src/Makefile.am: Add cgroup helper file * src/qemu/qemu_driver.c: Delete cgroup code
2010-12-16 16:10:54 +00:00
virDomainDiskDefPtr disk);
qemu: add vfio devices to cgroup ACL when appropriate PCIO device assignment using VFIO requires read/write access by the qemu process to /dev/vfio/vfio, and /dev/vfio/nn, where "nn" is the VFIO group number that the assigned device belongs to (and can be found with the function virPCIDeviceGetVFIOGroupDev) /dev/vfio/vfio can be accessible to any guest without danger (according to vfio developers), so it is added to the static ACL. The group device must be dynamically added to the cgroup ACL for each vfio hostdev in two places: 1) for any devices in the persistent config when the domain is started (done during qemuSetupCgroup()) 2) at device attach time for any hotplug devices (done in qemuDomainAttachHostDevice) The group device must be removed from the ACL when a device it "hot-unplugged" (in qemuDomainDetachHostDevice()) Note that USB devices are already doing their own cgroup setup and teardown in the hostdev-usb specific function. I chose to make the new functions generic and call them in a common location though. We can then move the USB-specific code (which is duplicated in two locations) to this single location. I'll be posting a followup patch to do that.
2013-04-29 17:15:26 +00:00
int qemuSetupHostdevCGroup(virDomainObjPtr vm,
virDomainHostdevDefPtr dev)
ATTRIBUTE_RETURN_CHECK;
int qemuTeardownHostdevCgroup(virDomainObjPtr vm,
virDomainHostdevDefPtr dev)
ATTRIBUTE_RETURN_CHECK;
Auto-detect existing cgroup placement Use the new virCgroupNewDetect function to determine cgroup placement of existing running VMs. This will allow the legacy cgroups creation APIs to be removed entirely Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-07-22 12:59:28 +00:00
int qemuConnectCgroup(virQEMUDriverPtr driver,
virDomainObjPtr vm);
Replace 'struct qemud_driver *' with virQEMUDriverPtr Remove the obsolete 'qemud' naming prefix and underscore based type name. Introduce virQEMUDriverPtr as the replacement, in common with LXC driver naming style
2012-11-28 16:43:10 +00:00
int qemuSetupCgroup(virQEMUDriverPtr driver,
qemu: report TAP device indexes to systemd Record the index of each TAP device created and report them to systemd, so they show up in machinectl status for the VM.
2015-01-16 11:25:50 +00:00
virDomainObjPtr vm,
size_t nnicindexes,
int *nicindexes);
qemu: Save numad advice into qemuDomainObjPrivate Thanks to that we don't need to drag the pointer everywhere and future code will get cleaner. Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2014-12-12 14:23:12 +00:00
int qemuSetupCpusetMems(virDomainObjPtr vm);
qemu: Implement period and quota tunable XML configuration and parsing This patch implements period and quota tunable XML configuration and parsing. A quota or period of zero will be simply ignored.
2011-07-21 02:10:31 +00:00
int qemuSetupCgroupVcpuBW(virCgroupPtr cgroup,
unsigned long long period,
long long quota);
Enable cpuset cgroup and synchronous vcpupin info to cgroup. vcpu threads pin are implemented using sched_setaffinity(), but not controlled by cgroup. This patch does the following things: 1) enable cpuset cgroup 2) reflect all the vcpu threads pin info to cgroup Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com> Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
2012-08-21 09:18:30 +00:00
int qemuSetupCgroupVcpuPin(virCgroupPtr cgroup,
Convert virDomainVcpuPinDefPtr to virDomainPinDefPtr As pointed out by jtomko in his review of the IOThreads pinning code: http://www.redhat.com/archives/libvir-list/2015-March/msg00495.html there are some comments sprinkled in indicating IOThreads were using the same structure as the VcpuPin code... This is the first patch of a few that will change the virDomainVcpuPin* structures and code to just virDomainPin* - starting with the data structure naming...
2015-03-14 02:50:26 +00:00
virDomainPinDefPtr *vcpupin,
Enable cpuset cgroup and synchronous vcpupin info to cgroup. vcpu threads pin are implemented using sched_setaffinity(), but not controlled by cgroup. This patch does the following things: 1) enable cpuset cgroup 2) reflect all the vcpu threads pin info to cgroup Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com> Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
2012-08-21 09:18:30 +00:00
int nvcpupin,
int vcpuid);
qemu: Pin the emulator when only cpuset is specified According to our recent changes (clarifications), we should be pinning qemu's emulator processes using the <vcpu> 'cpuset' attribute in case there is no <emulatorpin> specified. This however doesn't work entirely as expected and this patch should resolve all the remaining issues.
2012-10-17 14:39:31 +00:00
int qemuSetupCgroupEmulatorPin(virCgroupPtr cgroup, virBitmapPtr cpumask);
qemu_cgroup: Introduce cgroup functions for IOThreads In order to support cpuset setting, introduce qemuSetupCgroupIOThreadsPin and qemuSetupCgroupForIOThreads to mimic the existing Vcpu API's. These will support having an 'iotrhreadpin' element in the 'cpuset' in order to pin named IOThreads to specific CPU's. The IOThread pin names will follow the IOThread naming scheme starting at 1 (eg "iothread1") up through an including the def->iothreads value.
2014-09-03 13:05:02 +00:00
int qemuSetupCgroupIOThreadsPin(virCgroupPtr cgroup,
Convert virDomainVcpuPinDefPtr to virDomainPinDefPtr As pointed out by jtomko in his review of the IOThreads pinning code: http://www.redhat.com/archives/libvir-list/2015-March/msg00495.html there are some comments sprinkled in indicating IOThreads were using the same structure as the VcpuPin code... This is the first patch of a few that will change the virDomainVcpuPin* structures and code to just virDomainPin* - starting with the data structure naming...
2015-03-14 02:50:26 +00:00
virDomainPinDefPtr *iothreadspin,
qemu_cgroup: Introduce cgroup functions for IOThreads In order to support cpuset setting, introduce qemuSetupCgroupIOThreadsPin and qemuSetupCgroupForIOThreads to mimic the existing Vcpu API's. These will support having an 'iotrhreadpin' element in the 'cpuset' in order to pin named IOThreads to specific CPU's. The IOThread pin names will follow the IOThread naming scheme starting at 1 (eg "iothread1") up through an including the def->iothreads value.
2014-09-03 13:05:02 +00:00
int niothreadspin,
int iothreadid);
Store a virCgroupPtr instance in qemuDomainObjPrivatePtr Instead of calling virCgroupForDomain every time we need the virCgrouPtr instance, just do it once at Vm startup and cache a reference to the object in qemuDomainObjPrivatePtr until shutdown of the VM. Removing the virCgroupPtr from the QEMU driver state also means we don't have stale mount info, if someone mounts the cgroups filesystem after libvirtd has been started Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-03-21 14:40:29 +00:00
int qemuSetupCgroupForVcpu(virDomainObjPtr vm);
qemu_cgroup: Introduce cgroup functions for IOThreads In order to support cpuset setting, introduce qemuSetupCgroupIOThreadsPin and qemuSetupCgroupForIOThreads to mimic the existing Vcpu API's. These will support having an 'iotrhreadpin' element in the 'cpuset' in order to pin named IOThreads to specific CPU's. The IOThread pin names will follow the IOThread naming scheme starting at 1 (eg "iothread1") up through an including the def->iothreads value.
2014-09-03 13:05:02 +00:00
int qemuSetupCgroupForIOThreads(virDomainObjPtr vm);
Replace 'struct qemud_driver *' with virQEMUDriverPtr Remove the obsolete 'qemud' naming prefix and underscore based type name. Introduce virQEMUDriverPtr as the replacement, in common with LXC driver naming style
2012-11-28 16:43:10 +00:00
int qemuSetupCgroupForEmulator(virQEMUDriverPtr driver,
qemu: Save numad advice into qemuDomainObjPrivate Thanks to that we don't need to drag the pointer everywhere and future code will get cleaner. Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2014-12-12 14:23:12 +00:00
virDomainObjPtr vm);
qemu: use systemd's TerminateMachine to kill all processes If we don't properly clean up all processes in the machine-<vmname>.scope systemd won't remove the cgroup and subsequent vm starts fail with 'CreateMachine: File exists' Additional processes can e.g. be added via echo $PID > /sys/fs/cgroup/systemd/machine.slice/machine-${VMNAME}.scope/tasks but there are other cases like http://bugs.debian.org/761521 Invoke TerminateMachine to be on the safe side since systemd tracks the cgroup anyway. This is a noop if all processes have terminated already.
2014-09-25 11:32:58 +00:00
int qemuRemoveCgroup(virQEMUDriverPtr driver, virDomainObjPtr vm);
Store a virCgroupPtr instance in qemuDomainObjPrivatePtr Instead of calling virCgroupForDomain every time we need the virCgrouPtr instance, just do it once at Vm startup and cache a reference to the object in qemuDomainObjPrivatePtr until shutdown of the VM. Removing the virCgroupPtr from the QEMU driver state also means we don't have stale mount info, if someone mounts the cgroups filesystem after libvirtd has been started Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-03-21 14:40:29 +00:00
int qemuAddToCgroup(virDomainObjPtr vm);
Move QEMU cgroup helper code out of the QEMU driver The QEMU driver file is far too large. Move all the cgroup helper code out into a separate file. No functional change. * src/qemu/qemu_cgroup.c, src/qemu/qemu_cgroup.h, src/Makefile.am: Add cgroup helper file * src/qemu/qemu_driver.c: Delete cgroup code
2010-12-16 16:10:54 +00:00
#endif /* __QEMU_CGROUP_H__ */
Reference in New Issue Copy Permalink