2 a.m.
A tool to create, destroy and query resource monitoring group lively.
---
tools/virsh-domain.c | 139 +++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 139 insertions(+)
diff --git a/tools/virsh-domain.c b/tools/virsh-domain.c
index e9b88f0..6aa674e 100644
--- a/tools/virsh-domain.c
+++ b/tools/virsh-domain.c
@@ -7677,6 +7677,139 @@ cmdIOThreadDel(vshControl *ctl, const vshCmd *cmd)
return ret;
}
+static const vshCmdInfo info_cpuresource[] = {
+ {.name = "help",
+ .data = N_("get or set hardware CPU RDT monitoring group")
+ },
+ {.name = "desc",
+ .data = N_("Create or destroy CPU resource monitoring group.\n"
+ " To get current CPU resource monitoring group status: "
+ " virsh # cpuresource [domain]")
+ },
+ {.name = NULL}
+};
+
+static const vshCmdOptDef opts_cpurescource[] = {
+ VIRSH_COMMON_OPT_DOMAIN_FULL(0),
+ {.name = "group_name",
+ .type = VSH_OT_ALIAS,
+ .help = "group-name"
+ },
+ {.name = "group-name",
+ .type = VSH_OT_STRING,
+ .flags = VSH_OFLAG_REQ_OPT,
+ .help = N_("group name to manipulate")
+ },
+ {.name = "vcpulist",
+ .type = VSH_OT_STRING,
+ .flags = VSH_OFLAG_REQ_OPT,
+ .help = N_("ids of vcpus to manipulate")
+ },
+ {.name = "create",
+ .type = VSH_OT_BOOL,
+ .help = N_("Create CPU resctrl monitoring group for functions such as "
+ "monitoring cache occupancy"),
+ },
+ {.name = "destroy",
+ .type = VSH_OT_BOOL,
+ .help = N_("Destroy CPU resctrl monitoring group")
+ },
+ VIRSH_COMMON_OPT_LIVE(N_("modify/get running state")),
+ VIRSH_COMMON_OPT_CONFIG(N_("modify/get persistent configuration")),
+ VIRSH_COMMON_OPT_DOMAIN_CURRENT,
+ {.name = NULL}
+};
+
+
+static bool
+cmdCpuResource(vshControl *ctl, const vshCmd *cmd)
+{
+ virDomainPtr dom;
+ bool ret = false;
+ char *status = NULL;
+ int action = 0;
+ bool config = vshCommandOptBool(cmd, "config");
+ bool live = vshCommandOptBool(cmd, "live");
+ bool enable = vshCommandOptBool(cmd, "create");
+ bool disable = vshCommandOptBool(cmd, "destroy");
+ bool current = vshCommandOptBool(cmd, "current");
+ const char *vcpustr = NULL;
+ const char *group_name = NULL;
+ unsigned int flags = VIR_DOMAIN_AFFECT_CURRENT;
+ char **tok = NULL;
+ size_t ntok = 0;
+ size_t i = 0;
+ int maxvcpus = 0;
+
+ VSH_EXCLUSIVE_OPTIONS_VAR(enable, disable);
+
+ VSH_EXCLUSIVE_OPTIONS_VAR(current, live);
+ VSH_EXCLUSIVE_OPTIONS_VAR(current, config);
+
+ VSH_REQUIRE_OPTION("disable", "group-name");
+
+ if (config)
+ flags |= VIR_DOMAIN_AFFECT_CONFIG;
+ if (live)
+ flags |= VIR_DOMAIN_AFFECT_LIVE;
+
+ if (vshCommandOptStringReq(ctl, cmd, "group-name", &group_name))
+ return false;
+
+ if (vshCommandOptStringReq(ctl, cmd, "vcpulist", &vcpustr))
+ return false;
+
+ if (enable && !vcpustr && !group_name) {
+ vshError(ctl, _("Option --create requires at least one "
+ "of the options --group-name or --vcpulist"));
+ return false;
+ }
+
+ if (!(dom = virshCommandOptDomain(ctl, cmd, NULL)))
+ return false;
+
+ if (!enable && !disable) {
+ if (virDomainGetCPUResmonSts(dom, group_name, &status) < 0)
+ goto cleanup;
+
+ if (!status)
+ goto cleanup;
+
+ maxvcpus = virDomainGetMaxVcpus(dom);
+ if (maxvcpus == -1)
+ goto cleanup;
+
+ if (!(tok = virStringSplitCount(status, ";", maxvcpus + 1,
&ntok)))
+ goto cleanup;
+
+ if (ntok > maxvcpus)
+ ntok = maxvcpus;
+
+ vshPrint(ctl, "CPU Resource Monitoring Group Status: \n");
+
+ for (i = 0; i < ntok; i++)
+ vshPrint(ctl, " %s\n", tok[i]);
+ } else {
+ if (disable)
+ action = 2;
+ if (enable)
+ action = 1;
+
+ if (virDomainSetCPUResmon(dom, vcpustr, group_name, action, flags) < 0)
+ goto cleanup;
+
+ if (!status)
+ goto cleanup;
+ }
+
+ ret = true;
+ cleanup:
+ VIR_FREE(status);
+ virStringListFree(tok);
+ virshDomainFree(dom);
+ return ret;
+}
+
/*
* "cpu-stats" command
*/
@@ -13726,6 +13859,12 @@ const vshCmdDef domManagementCmds[] = {
.info = info_attach_device,
.flags = 0
},
+ {.name = "cpu-resource",
+ .handler = cmdCpuResource,
+ .opts = opts_cpurescource,
+ .info = info_cpuresource,
+ .flags = 0
+ },
{.name = "attach-disk",
.handler = cmdAttachDisk,
.opts = opts_attach_disk,
--
2.7.4