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charset="utf-8" Signed-off-by: Praveen K Paladugu --- src/ch/ch_driver.c | 154 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 154 insertions(+) diff --git a/src/ch/ch_driver.c b/src/ch/ch_driver.c index d7008ef011..1f40f6561a 100644 --- a/src/ch/ch_driver.c +++ b/src/ch/ch_driver.c @@ -1297,6 +1297,158 @@ chDomainPinVcpu(virDomainPtr dom, VIR_DOMAIN_AFFECT_LIVE); } =20 + + +static int +chDomainGetEmulatorPinInfo(virDomainPtr dom, + unsigned char *cpumaps, + int maplen, + unsigned int flags) +{ + virDomainObj *vm =3D NULL; + virDomainDef *def; + virCHDomainObjPrivate *priv; + bool live; + int ret =3D -1; + virBitmap *cpumask =3D NULL; + g_autoptr(virBitmap) bitmap =3D NULL; + virBitmap *autoCpuset =3D NULL; + + virCheckFlags(VIR_DOMAIN_AFFECT_LIVE | + VIR_DOMAIN_AFFECT_CONFIG, -1); + + if (!(vm =3D chDomObjFromDomain(dom))) + goto cleanup; + + if (virDomainGetEmulatorPinInfoEnsureACL(dom->conn, vm->def) < 0) + goto cleanup; + + if (!(def =3D virDomainObjGetOneDefState(vm, flags, &live))) + goto cleanup; + + if (live) { + priv =3D vm->privateData; + autoCpuset =3D priv->autoCpuset; + } + if (def->cputune.emulatorpin) { + cpumask =3D def->cputune.emulatorpin; + } else if (def->cpumask) { + cpumask =3D def->cpumask; + } else if (vm->def->placement_mode =3D=3D VIR_DOMAIN_CPU_PLACEMENT_MOD= E_AUTO && + autoCpuset) { + cpumask =3D autoCpuset; + } else { + if (!(bitmap =3D virHostCPUGetAvailableCPUsBitmap())) + goto cleanup; + cpumask =3D bitmap; + } + + virBitmapToDataBuf(cpumask, cpumaps, maplen); + + ret =3D 1; + + cleanup: + virDomainObjEndAPI(&vm); + return ret; +} + +static int +chDomainPinEmulator(virDomainPtr dom, + unsigned char *cpumap, + int maplen, + unsigned int flags) +{ + virCHDriver *driver =3D dom->conn->privateData; + virDomainObj *vm; + virCgroup *cgroup_emulator =3D NULL; + virDomainDef *def; + virDomainDef *persistentDef; + int ret =3D -1; + virCHDomainObjPrivate *priv; + virBitmap *pcpumap =3D NULL; + g_autoptr(virCHDriverConfig) cfg =3D NULL; + g_autofree char *str =3D NULL; + virTypedParameterPtr eventParams =3D NULL; + int eventNparams =3D 0; + int eventMaxparams =3D 0; + + virCheckFlags(VIR_DOMAIN_AFFECT_LIVE | + VIR_DOMAIN_AFFECT_CONFIG, -1); + + cfg =3D virCHDriverGetConfig(driver); + + if (!(vm =3D chDomObjFromDomain(dom))) + goto cleanup; + + if (virDomainPinEmulatorEnsureACL(dom->conn, vm->def, flags) < 0) + goto cleanup; + + if (virCHDomainObjBeginJob(vm, CH_JOB_MODIFY) < 0) + goto cleanup; + + if (virDomainObjGetDefs(vm, flags, &def, &persistentDef) < 0) + goto endjob; + + priv =3D vm->privateData; + + if (!(pcpumap =3D virBitmapNewData(cpumap, maplen))) + goto endjob; + + if (virBitmapIsAllClear(pcpumap)) { + virReportError(VIR_ERR_INVALID_ARG, "%s", + _("Empty cpu list for pinning")); + goto endjob; + } + + if (def) { + if (virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_CPU= SET)) { + if (virCgroupNewThread(priv->cgroup, VIR_CGROUP_THREAD_EMULATO= R, + 0, false, &cgroup_emulator) < 0) + goto endjob; + + if (virSetupCgroupCpusetCpus(cgroup_emulator, pcpumap) < 0) { + virReportError(VIR_ERR_OPERATION_INVALID, "%s", + _("failed to set cpuset.cpus in cgroup" + " for emulator threads")); + goto endjob; + } + } + + if (virProcessSetAffinity(vm->pid, pcpumap, false) < 0) + goto endjob; + + virBitmapFree(def->cputune.emulatorpin); + def->cputune.emulatorpin =3D NULL; + + if (!(def->cputune.emulatorpin =3D virBitmapNewCopy(pcpumap))) + goto endjob; + + if (virDomainObjSave(vm, driver->xmlopt, cfg->stateDir) < 0) + goto endjob; + + str =3D virBitmapFormat(pcpumap); + if (virTypedParamsAddString(&eventParams, &eventNparams, + &eventMaxparams, + VIR_DOMAIN_TUNABLE_CPU_EMULATORPIN, + str) < 0) + goto endjob; + + } + + + ret =3D 0; + + endjob: + virCHDomainObjEndJob(vm); + + cleanup: + if (cgroup_emulator) + virCgroupFree(cgroup_emulator); + virBitmapFree(pcpumap); + virDomainObjEndAPI(&vm); + return ret; +} + #define CH_NB_NUMA_PARAM 2 =20 static int @@ -1610,6 +1762,8 @@ static virHypervisorDriver chHypervisorDriver =3D { .domainGetVcpuPinInfo =3D chDomainGetVcpuPinInfo, /* 8.0.0 */ .domainPinVcpu =3D chDomainPinVcpu, /* 8.0.0 */ .domainPinVcpuFlags =3D chDomainPinVcpuFlags, /* 8.0.0 */ + .domainPinEmulator =3D chDomainPinEmulator, /* 8.0.0 */ + .domainGetEmulatorPinInfo =3D chDomainGetEmulatorPinInfo, /* 8.0.0 */ .nodeGetCPUMap =3D chNodeGetCPUMap, /* 8.0.0 */ .domainSetNumaParameters =3D chDomainSetNumaParameters, /* 8.0.0 */ .domainGetNumaParameters =3D chDomainGetNumaParameters, /* 8.0.0 */ --=20 2.27.0