Esempio n. 1
0
static int
qemuSetupMemoryCgroup(virDomainObjPtr vm)
{
    qemuDomainObjPrivatePtr priv = vm->privateData;

    if (!virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_MEMORY)) {
        if (virMemoryLimitIsSet(vm->def->mem.hard_limit) ||
            virMemoryLimitIsSet(vm->def->mem.soft_limit) ||
            virMemoryLimitIsSet(vm->def->mem.swap_hard_limit)) {
            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
                           _("Memory cgroup is not available on this host"));
            return -1;
        } else {
            return 0;
        }
    }

    if (virMemoryLimitIsSet(vm->def->mem.hard_limit))
        if (virCgroupSetMemoryHardLimit(priv->cgroup, vm->def->mem.hard_limit) < 0)
            return -1;

    if (virMemoryLimitIsSet(vm->def->mem.soft_limit))
        if (virCgroupSetMemorySoftLimit(priv->cgroup, vm->def->mem.soft_limit) < 0)
            return -1;

    if (virMemoryLimitIsSet(vm->def->mem.swap_hard_limit))
        if (virCgroupSetMemSwapHardLimit(priv->cgroup, vm->def->mem.swap_hard_limit) < 0)
            return -1;

    return 0;
}
Esempio n. 2
0
static int virLXCCgroupSetupMemTune(virDomainDefPtr def,
                                    virCgroupPtr cgroup)
{
    int ret = -1;
    int rc;

    rc = virCgroupSetMemory(cgroup, def->mem.max_balloon);
    if (rc != 0) {
        virReportSystemError(-rc,
                             _("Unable to set memory limit for domain %s"),
                             def->name);
        goto cleanup;
    }

    if (def->mem.hard_limit) {
        rc = virCgroupSetMemoryHardLimit(cgroup, def->mem.hard_limit);
        if (rc != 0) {
            virReportSystemError(-rc,
                                 _("Unable to set memory hard limit for domain %s"),
                                 def->name);
            goto cleanup;
        }
    }

    if (def->mem.soft_limit) {
        rc = virCgroupSetMemorySoftLimit(cgroup, def->mem.soft_limit);
        if (rc != 0) {
            virReportSystemError(-rc,
                                 _("Unable to set memory soft limit for domain %s"),
                                 def->name);
            goto cleanup;
        }
    }

    if (def->mem.swap_hard_limit) {
        rc = virCgroupSetMemSwapHardLimit(cgroup, def->mem.swap_hard_limit);
        if (rc != 0) {
            virReportSystemError(-rc,
                                 _("Unable to set swap hard limit for domain %s"),
                                 def->name);
            goto cleanup;
        }
    }

    ret = 0;
cleanup:
    return ret;
}
Esempio n. 3
0
static int virLXCCgroupSetupMemTune(virDomainDefPtr def,
                                    virCgroupPtr cgroup)
{
    int ret = -1;

    if (virCgroupSetMemory(cgroup, def->mem.max_balloon) < 0)
        goto cleanup;

    if (def->mem.hard_limit &&
        virCgroupSetMemoryHardLimit(cgroup, def->mem.hard_limit) < 0)
        goto cleanup;

    if (def->mem.soft_limit &&
        virCgroupSetMemorySoftLimit(cgroup, def->mem.soft_limit) < 0)
        goto cleanup;

    if (def->mem.swap_hard_limit &&
        virCgroupSetMemSwapHardLimit(cgroup, def->mem.swap_hard_limit) < 0)
        goto cleanup;

    ret = 0;
 cleanup:
    return ret;
}
Esempio n. 4
0
static int virLXCCgroupSetupMemTune(virDomainDefPtr def,
                                    virCgroupPtr cgroup)
{
    int ret = -1;

    if (virCgroupSetMemory(cgroup, virDomainDefGetMemoryInitial(def)) < 0)
        goto cleanup;

    if (virMemoryLimitIsSet(def->mem.hard_limit))
        if (virCgroupSetMemoryHardLimit(cgroup, def->mem.hard_limit) < 0)
            goto cleanup;

    if (virMemoryLimitIsSet(def->mem.soft_limit))
        if (virCgroupSetMemorySoftLimit(cgroup, def->mem.soft_limit) < 0)
            goto cleanup;

    if (virMemoryLimitIsSet(def->mem.swap_hard_limit))
        if (virCgroupSetMemSwapHardLimit(cgroup, def->mem.swap_hard_limit) < 0)
            goto cleanup;

    ret = 0;
 cleanup:
    return ret;
}
Esempio n. 5
0
/**
 * lxcSetContainerResources
 * @def: pointer to virtual machine structure
 *
 * Creates a cgroup for the container, moves the task inside,
 * and sets resource limits
 *
 * Returns 0 on success or -1 in case of error
 */
static int lxcSetContainerResources(virDomainDefPtr def)
{
    virCgroupPtr driver;
    virCgroupPtr cgroup;
    int rc = -1;
    int i;
    struct cgroup_device_policy devices[] = {
        {'c', LXC_DEV_MAJ_MEMORY, LXC_DEV_MIN_NULL},
        {'c', LXC_DEV_MAJ_MEMORY, LXC_DEV_MIN_ZERO},
        {'c', LXC_DEV_MAJ_MEMORY, LXC_DEV_MIN_FULL},
        {'c', LXC_DEV_MAJ_MEMORY, LXC_DEV_MIN_RANDOM},
        {'c', LXC_DEV_MAJ_MEMORY, LXC_DEV_MIN_URANDOM},
        {'c', LXC_DEV_MAJ_TTY, LXC_DEV_MIN_TTY},
        {'c', LXC_DEV_MAJ_TTY, LXC_DEV_MIN_PTMX},
        {0,   0, 0}};

    rc = virCgroupForDriver("lxc", &driver, 1, 0);
    if (rc != 0) {
        /* Skip all if no driver cgroup is configured */
        if (rc == -ENXIO || rc == -ENOENT)
            return 0;

        virReportSystemError(-rc, "%s",
                             _("Unable to get cgroup for driver"));
        return rc;
    }

    rc = virCgroupForDomain(driver, def->name, &cgroup, 1);
    if (rc != 0) {
        virReportSystemError(-rc,
                             _("Unable to create cgroup for domain %s"),
                             def->name);
        goto cleanup;
    }

    if (def->blkio.weight) {
        rc = virCgroupSetBlkioWeight(cgroup, def->blkio.weight);
        if (rc != 0) {
            virReportSystemError(-rc,
                                 _("Unable to set Blkio weight for domain %s"),
                                 def->name);
            goto cleanup;
        }
    }

    if (def->cputune.shares) {
        rc = virCgroupSetCpuShares(cgroup, def->cputune.shares);
        if (rc != 0) {
            virReportSystemError(-rc,
                                 _("Unable to set cpu shares for domain %s"),
                                 def->name);
            goto cleanup;
        }
    }

    rc = virCgroupSetMemory(cgroup, def->mem.max_balloon);
    if (rc != 0) {
        virReportSystemError(-rc,
                             _("Unable to set memory limit for domain %s"),
                             def->name);
        goto cleanup;
    }

    if (def->mem.hard_limit) {
        rc = virCgroupSetMemoryHardLimit(cgroup, def->mem.hard_limit);
        if (rc != 0) {
            virReportSystemError(-rc,
                                 _("Unable to set memory hard limit for domain %s"),
                                 def->name);
            goto cleanup;
        }
    }

    if (def->mem.soft_limit) {
        rc = virCgroupSetMemorySoftLimit(cgroup, def->mem.soft_limit);
        if (rc != 0) {
            virReportSystemError(-rc,
                                 _("Unable to set memory soft limit for domain %s"),
                                 def->name);
            goto cleanup;
        }
    }

    if (def->mem.swap_hard_limit) {
        rc = virCgroupSetMemSwapHardLimit(cgroup, def->mem.swap_hard_limit);
        if (rc != 0) {
            virReportSystemError(-rc,
                                 _("Unable to set swap hard limit for domain %s"),
                                 def->name);
            goto cleanup;
        }
    }

    rc = virCgroupDenyAllDevices(cgroup);
    if (rc != 0) {
        virReportSystemError(-rc,
                             _("Unable to deny devices for domain %s"),
                             def->name);
        goto cleanup;
    }

    for (i = 0; devices[i].type != 0; i++) {
        struct cgroup_device_policy *dev = &devices[i];
        rc = virCgroupAllowDevice(cgroup,
                                  dev->type,
                                  dev->major,
                                  dev->minor,
                                  VIR_CGROUP_DEVICE_RWM);
        if (rc != 0) {
            virReportSystemError(-rc,
                                 _("Unable to allow device %c:%d:%d for domain %s"),
                                 dev->type, dev->major, dev->minor, def->name);
            goto cleanup;
        }
    }

    rc = virCgroupAllowDeviceMajor(cgroup, 'c', LXC_DEV_MAJ_PTY,
                                   VIR_CGROUP_DEVICE_RWM);
    if (rc != 0) {
        virReportSystemError(-rc,
                             _("Unable to allow PYT devices for domain %s"),
                             def->name);
        goto cleanup;
    }

    rc = virCgroupAddTask(cgroup, getpid());
    if (rc != 0) {
        virReportSystemError(-rc,
                             _("Unable to add task %d to cgroup for domain %s"),
                             getpid(), def->name);
    }

cleanup:
    virCgroupFree(&driver);
    virCgroupFree(&cgroup);

    return rc;
}