static void
qemuRestoreCgroupState(virDomainObjPtr vm)
{
char *mem_mask = NULL;
char *nodeset = NULL;
int empty = -1;
qemuDomainObjPrivatePtr priv = vm->privateData;
size_t i = 0;
virBitmapPtr all_nodes;
virCgroupPtr cgroup_temp = NULL;
if (!virNumaIsAvailable() ||
!virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_CPUSET))
return;
if (!(all_nodes = virNumaGetHostMemoryNodeset()))
goto error;
if (!(mem_mask = virBitmapFormat(all_nodes)))
goto error;
if ((empty = virCgroupHasEmptyTasks(priv->cgroup,
VIR_CGROUP_CONTROLLER_CPUSET)) <= 0)
goto error;
if (virCgroupSetCpusetMems(priv->cgroup, mem_mask) < 0)
goto error;
for (i = 0; i < virDomainDefGetVcpusMax(vm->def); i++) {
virDomainVcpuDefPtr vcpu = virDomainDefGetVcpu(vm->def, i);
if (!vcpu->online)
continue;
if (virCgroupNewThread(priv->cgroup, VIR_CGROUP_THREAD_VCPU, i,
false, &cgroup_temp) < 0 ||
virCgroupSetCpusetMemoryMigrate(cgroup_temp, true) < 0 ||
virCgroupGetCpusetMems(cgroup_temp, &nodeset) < 0 ||
virCgroupSetCpusetMems(cgroup_temp, nodeset) < 0)
goto cleanup;
VIR_FREE(nodeset);
virCgroupFree(&cgroup_temp);
}
for (i = 0; i < vm->def->niothreadids; i++) {
if (virCgroupNewThread(priv->cgroup, VIR_CGROUP_THREAD_IOTHREAD,
vm->def->iothreadids[i]->iothread_id,
false, &cgroup_temp) < 0 ||
virCgroupSetCpusetMemoryMigrate(cgroup_temp, true) < 0 ||
virCgroupGetCpusetMems(cgroup_temp, &nodeset) < 0 ||
virCgroupSetCpusetMems(cgroup_temp, nodeset) < 0)
goto cleanup;
VIR_FREE(nodeset);
virCgroupFree(&cgroup_temp);
}
if (virCgroupNewThread(priv->cgroup, VIR_CGROUP_THREAD_EMULATOR, 0,
false, &cgroup_temp) < 0 ||
virCgroupSetCpusetMemoryMigrate(cgroup_temp, true) < 0 ||
virCgroupGetCpusetMems(cgroup_temp, &nodeset) < 0 ||
virCgroupSetCpusetMems(cgroup_temp, nodeset) < 0)
goto cleanup;
cleanup:
VIR_FREE(mem_mask);
VIR_FREE(nodeset);
virBitmapFree(all_nodes);
virCgroupFree(&cgroup_temp);
return;
error:
virResetLastError();
VIR_DEBUG("Couldn't restore cgroups to meaningful state");
goto cleanup;
}
int lxctoolsReadConfig(struct lxc_container* cont, virDomainDefPtr def)
{
char* item_str = NULL;
virNodeInfoPtr nodeinfo = NULL;
lxctoolsConffilePtr conffile = NULL;
if (VIR_ALLOC(nodeinfo) < 0) {
goto error;
}
if (virCapabilitiesGetNodeInfo(nodeinfo) < 0) {
goto error;
}
if (VIR_ALLOC(conffile) < 0)
goto error;
if (lxctoolsConffileRead(conffile, cont->config_file_name(cont)) < 0) {
virReportError(VIR_ERR_OPERATION_FAILED, "'%s'", _("failed to read conffile"));
goto error;
}
if ((item_str = lxctoolsConffileGetItem(conffile, "lxc.arch")) == NULL) {
goto error;
}
if (item_str[0] != '\0') {
if (strcmp(item_str, "x86") == 0 || strcmp(item_str, "i686") == 0) {
def->os.arch = VIR_ARCH_I686;
}
else if (strcmp(item_str, "x86_64") == 0 || strcmp(item_str, "amd64") == 0) {
def->os.arch = VIR_ARCH_X86_64;
} else {
virReportError(VIR_ERR_OPERATION_FAILED, "Unknown architecture '%s'.", item_str);
goto error;
}
}
VIR_FREE(item_str);
item_str = NULL;
if ((item_str = lxctoolsConffileGetItem(conffile, "lxc.cgroup.cpuset.cpus")) == NULL){
goto error;
}
if (item_str[0] == '\0') {
if (virDomainDefSetVcpusMax(def, nodeinfo->cpus, NULL) < 0)
goto error;
def->cpumask = virBitmapNew(nodeinfo->cpus);
virBitmapSetAll(def->cpumask);
} else {
int cpunum;
if ( (cpunum = virBitmapParse(item_str, &def->cpumask, nodeinfo->cpus) ) < 0) {
goto error;
}
if (virDomainDefSetVcpusMax(def, cpunum, NULL) < 0)
goto error;
}
if (virDomainDefSetVcpus(def, virDomainDefGetVcpusMax(def)) < 0)
goto error;
VIR_FREE(item_str);
item_str = NULL;
if ((item_str = lxctoolsConffileGetItem(conffile, "lxc.cgroup.cpu.shares")) == NULL) {
goto error;
}
if (item_str[0] != '\0') {
unsigned long shares;
sscanf(item_str, "%lu", &shares);
def->cputune.shares = shares;
def->cputune.sharesSpecified = true;
}
VIR_FREE(item_str);
item_str = NULL;
if ((item_str = lxctoolsConffileGetItem(conffile, "lxc.cgroup.cpu.cfs_period_us")) == NULL) {
goto error;
}
if (item_str[0] != '\0') {
unsigned long long period;
sscanf(item_str, "%llu", &period);
def->cputune.period = period;
}
VIR_FREE(item_str);
item_str = NULL;
if ((item_str = lxctoolsConffileGetItem(conffile, "lxc.cgroup.cpu.cfs_quota_us")) == NULL) {
goto error;
}
if (item_str[0] != '\0') {
long long quota;
sscanf(item_str, "%llu", "a);
def->cputune.quota = quota;
}
VIR_FREE(item_str);
item_str = NULL;
if ((item_str = lxctoolsConffileGetItem(conffile, "lxc.cgroup.memory.limit_in_bytes")) == NULL) {
goto error;
}
if (item_str[0] == '\0') {
virDomainDefSetMemoryTotal(def, nodeinfo->memory);
} else {
virDomainDefSetMemoryTotal(def, memToULL(item_str));
}
def->mem.cur_balloon = virDomainDefGetMemoryTotal(def);
// def->mem.max_memory = nodeinfo->memory;
// def->mem.memory_slots = 1; //maybe delete max_memory alltogether
VIR_FREE(item_str);
item_str = NULL;
if ((item_str = lxctoolsConffileGetItem(conffile, "lxc.cgroup.memory.soft_limit_in_bytes")) == NULL) {
goto error;
}
if (item_str[0] != '\0') {
def->mem.soft_limit = memToULL(item_str);
}
VIR_FREE(item_str);
item_str = NULL;
if ((item_str = lxctoolsConffileGetItem(conffile, "lxc.cgroup.cpuset.mems")) == NULL) {
goto error;
}
if (item_str[0] != '\0') {
virBitmapPtr nodeset;
if (virBitmapParse(item_str, &nodeset, nodeinfo->nodes) < 0) {
goto error;
}
if (virDomainNumatuneSet(def->numa,
true,
VIR_DOMAIN_NUMATUNE_PLACEMENT_DEFAULT,
VIR_DOMAIN_NUMATUNE_MEM_STRICT,
nodeset) < 0 ) {
goto error;
}
}
VIR_FREE(item_str);
item_str = NULL;
if ((item_str = lxctoolsConffileGetItem(conffile, "lxc.include")) == NULL) {
goto error;
}
//lxc.include is optional!
if (item_str[0] != '\0') {
def->metadata = xmlNewNode(NULL, (const xmlChar*) "metadata");
xmlNewTextChild(def->metadata, NULL, (const xmlChar*) (const xmlChar*)"lxctools:include", (const xmlChar*)item_str);
}
VIR_FREE(item_str);
item_str = NULL;
if (lxctoolsReadFSConfig(conffile, def) < 0)
goto error;
if (lxctoolsReadNetConfig(cont, def) < 0)
goto error;
return 0;
error:
VIR_FREE(item_str);
VIR_FREE(nodeinfo);
return -1;
}
