add new command numatune to virsh to get/set numa parameters
---
tools/virsh.c | 187 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 187 insertions(+), 0 deletions(-)
diff --git a/tools/virsh.c b/tools/virsh.c
index 5544a41..e2c3cc2 100644
--- a/tools/virsh.c
+++ b/tools/virsh.c
@@ -4974,6 +4974,192 @@ cmdMemtune(vshControl * ctl, const vshCmd * cmd)
}
/*
+ * "numatune" command
+ */
+static const vshCmdInfo info_numatune[] = {
+ {"help", N_("Get or set numa parameters")},
+ {"desc", N_("Get or set the current numa parameters for a guest" \
+ " domain.\n" \
+ " To get the numa parameters use following command: \n\n" \
+ " virsh # numatune <domain>")},
+ {NULL, NULL}
+
+};
+
+static const vshCmdOptDef opts_numatune[] = {
+ {"domain", VSH_OT_DATA, VSH_OFLAG_REQ, N_("domain name, id or uuid")},
+ {"nodeset", VSH_OT_DATA, VSH_OFLAG_NONE,
+ N_("NUMA node to set")},
+ {"strict", VSH_OT_INT, VSH_OFLAG_NONE,
+ N_("whether memory allocation should be restricted to the memory nodes ")},
+ {"exclusive", VSH_OT_INT, VSH_OFLAG_NONE,
+ N_("XXX")},
+ {"config", VSH_OT_BOOL, 0, N_("affect next boot")},
+ {"live", VSH_OT_BOOL, 0, N_("affect running domain")},
+ {"current", VSH_OT_BOOL, 0, N_("affect current domain")},
+ {NULL, 0, 0, NULL}
+};
+
+static bool
+cmdNumatune(vshControl * ctl, const vshCmd * cmd)
+{
+ virDomainPtr dom;
+ int rc = -1;
+ int nparams = 0;
+ unsigned int i = 0;
+ virTypedParameterPtr params = NULL, temp = NULL;
+ const char *nodeset = NULL;
+ unsigned long strict = 0;
+ unsigned long exclusive = 0;
+ bool strictParam = false;
+ bool exclusiveParam = false;
+ bool ret = false;
+ unsigned int flags = 0;
+ int current = vshCommandOptBool(cmd, "current");
+ int config = vshCommandOptBool(cmd, "config");
+ int live = vshCommandOptBool(cmd, "live");
+
+ if (current) {
+ if (live || config) {
+ vshError(ctl, "%s", _("--current must be specified exclusively"));
+ return false;
+ }
+ flags = VIR_DOMAIN_AFFECT_CURRENT;
+ } else {
+ if (config)
+ flags |= VIR_DOMAIN_AFFECT_CONFIG;
+ if (live)
+ flags |= VIR_DOMAIN_AFFECT_LIVE;
+ }
+
+ if (!vshConnectionUsability(ctl, ctl->conn))
+ return false;
+
+ if (!(dom = vshCommandOptDomain(ctl, cmd, NULL)))
+ return false;
+
+ if (vshCommandOptString(cmd, "nodeset", &nodeset) < 0) {
+ vshError(ctl, "%s", _("Unable to parse nodeset."));
+ virDomainFree(dom);
+ return false;
+ }
+ rc = vshCommandOptUL(cmd, "strict", &strict);
+ if (rc > 0) {
+ nparams++;
+ strictParam = true;
+ } else if (rc < 0) {
+ vshError(ctl, "%s", _("Unable to parse parameter --strict."));
+ virDomainFree(dom);
+ return false;
+ }
+
+ rc = vshCommandOptUL(cmd, "exclusive", &exclusive);
+ if (rc > 0) {
+ nparams++;
+ exclusiveParam = true;
+ } else if (rc < 0) {
+ vshError(ctl, "%s", _("Unable to parse parameter --exclusive."));
+ virDomainFree(dom);
+ return false;
+ }
+
+ if (!nodeset) {
+ /* get nodeset information */
+ }
+
+ if (nparams == 0) {
+ /* get the number of numa parameters */
+ if (virDomainGetNumaParameters(dom, NULL, &nparams, flags) != 0) {
+ vshError(ctl, "%s",
+ _("Unable to get number of memory parameters"));
+ goto cleanup;
+ }
+
+ if (nparams == 0) {
+ /* nothing to output */
+ ret = true;
+ goto cleanup;
+ }
+
+ /* now go get all the numa parameters */
+ params = vshCalloc(ctl, nparams, sizeof(*params));
+ if (virDomainGetNumaParameters(dom, params, &nparams, flags) != 0) {
+ vshError(ctl, "%s", _("Unable to get numa parameters"));
+ goto cleanup;
+ }
+
+ for (i = 0; i < nparams; i++) {
+ switch (params[i].type) {
+ case VIR_TYPED_PARAM_INT:
+ vshPrint(ctl, "%-15s: %d\n", params[i].field,
+ params[i].value.i);
+ break;
+ case VIR_TYPED_PARAM_UINT:
+ vshPrint(ctl, "%-15s: %u\n", params[i].field,
+ params[i].value.ui);
+ break;
+ case VIR_TYPED_PARAM_LLONG:
+ vshPrint(ctl, "%-15s: %lld\n", params[i].field,
+ params[i].value.l);
+ break;
+ case VIR_TYPED_PARAM_ULLONG:
+ vshPrint(ctl, "%-15s: %llu\n", params[i].field,
+ params[i].value.ul);
+ break;
+ case VIR_TYPED_PARAM_DOUBLE:
+ vshPrint(ctl, "%-15s: %f\n", params[i].field,
+ params[i].value.d);
+ break;
+ case VIR_TYPED_PARAM_BOOLEAN:
+ vshPrint(ctl, "%-15s: %d\n", params[i].field,
+ params[i].value.b);
+ break;
+ default:
+ vshPrint(ctl, "unimplemented numa parameter type\n");
+ }
+ }
+
+ ret = true;
+ } else {
+ /* set the numa parameters */
+ params = vshCalloc(ctl, nparams, sizeof(*params));
+
+ for (i = 0; i < nparams; i++) {
+ temp = ¶ms[i];
+ temp->type = VIR_TYPED_PARAM_ULLONG;
+
+ /*
+ * Some magic here, this is used to fill the params structure with
+ * the valid arguments passed, after filling the particular
+ * argument we purposely make them 0, so on the next pass it goes
+ * to the next valid argument and so on.
+ */
+ if (strictParam) {
+ temp->value.i = strict;
+ strncpy(temp->field, VIR_DOMAIN_NUMA_STRICT,
+ sizeof(temp->field));
+ strictParam = false;
+ }
+ if (exclusiveParam) {
+ temp->value.i = exclusive;
+ strncpy(temp->field, VIR_DOMAIN_NUMA_EXCLUSIVE,
+ sizeof(temp->field));
+ exclusiveParam = false;
+ }
+ }
+ if (virDomainSetNumaParameters(dom, params, nparams, flags) != 0)
+ vshError(ctl, "%s", _("Unable to change numa parameters"));
+ else
+ ret = true;
+ }
+
+ cleanup:
+ VIR_FREE(params);
+ virDomainFree(dom);
+ return ret;
+}
+
+/*
* "nodeinfo" command
*/
static const vshCmdInfo info_nodeinfo[] = {
@@ -14050,6 +14236,7 @@ static const vshCmdDef domManagementCmds[] = {
info_managedsaveremove, 0},
{"maxvcpus", cmdMaxvcpus, opts_maxvcpus, info_maxvcpus, 0},
{"memtune", cmdMemtune, opts_memtune, info_memtune, 0},
+ {"numatune", cmdNumatune, opts_numatune, info_numatune, 0},
{"migrate", cmdMigrate, opts_migrate, info_migrate, 0},
{"migrate-setmaxdowntime", cmdMigrateSetMaxDowntime,
opts_migrate_setmaxdowntime, info_migrate_setmaxdowntime, 0},
--
1.7.3.1
--
libvir-list mailing list
libvir-list@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/libvir-list