libvirt/tools/virsh-host.c
Osier Yang f81f0f2f1d node_memory: Add new parameter field to tune the new sysfs knob
Upstream kernel introduced new sysfs knob "merge_across_nodes" to
specify if pages from different numa nodes can be merged. When set
to 0, only pages which physically reside in the memory area of
same NUMA node can be merged. When set to 1, pages from all nodes
can be merged.

This patch supports the tuning by adding new param field
"shm_merge_across_nodes".
2012-10-15 17:35:54 +08:00

1063 lines
31 KiB
C

/*
* virsh-host.c: Commands in "Host and Hypervisor" group.
*
* Copyright (C) 2005, 2007-2012 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*
* Daniel Veillard <veillard@redhat.com>
* Karel Zak <kzak@redhat.com>
* Daniel P. Berrange <berrange@redhat.com>
*
*/
#include <config.h>
#include "virsh-host.h"
#include <libxml/parser.h>
#include <libxml/tree.h>
#include <libxml/xpath.h>
#include <libxml/xmlsave.h>
#include "internal.h"
#include "buf.h"
#include "memory.h"
#include "util.h"
#include "virsh-domain.h"
#include "xml.h"
#include "virtypedparam.h"
#include "json.h"
/*
* "capabilities" command
*/
static const vshCmdInfo info_capabilities[] = {
{"help", N_("capabilities")},
{"desc", N_("Returns capabilities of hypervisor/driver.")},
{NULL, NULL}
};
static bool
cmdCapabilities(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED)
{
char *caps;
if ((caps = virConnectGetCapabilities(ctl->conn)) == NULL) {
vshError(ctl, "%s", _("failed to get capabilities"));
return false;
}
vshPrint(ctl, "%s\n", caps);
VIR_FREE(caps);
return true;
}
/*
* "connect" command
*/
static const vshCmdInfo info_connect[] = {
{"help", N_("(re)connect to hypervisor")},
{"desc",
N_("Connect to local hypervisor. This is built-in command after shell start up.")},
{NULL, NULL}
};
static const vshCmdOptDef opts_connect[] = {
{"name", VSH_OT_DATA, VSH_OFLAG_EMPTY_OK,
N_("hypervisor connection URI")},
{"readonly", VSH_OT_BOOL, 0, N_("read-only connection")},
{NULL, 0, 0, NULL}
};
static bool
cmdConnect(vshControl *ctl, const vshCmd *cmd)
{
bool ro = vshCommandOptBool(cmd, "readonly");
const char *name = NULL;
if (ctl->conn) {
int ret;
if ((ret = virConnectClose(ctl->conn)) != 0) {
vshError(ctl, _("Failed to disconnect from the hypervisor, %d leaked reference(s)"), ret);
return false;
}
ctl->conn = NULL;
}
VIR_FREE(ctl->name);
if (vshCommandOptString(cmd, "name", &name) < 0) {
vshError(ctl, "%s", _("Please specify valid connection URI"));
return false;
}
ctl->name = vshStrdup(ctl, name);
ctl->useGetInfo = false;
ctl->useSnapshotOld = false;
ctl->readonly = ro;
ctl->conn = virConnectOpenAuth(ctl->name, virConnectAuthPtrDefault,
ctl->readonly ? VIR_CONNECT_RO : 0);
if (!ctl->conn)
vshError(ctl, "%s", _("Failed to connect to the hypervisor"));
return !!ctl->conn;
}
/*
* "freecell" command
*/
static const vshCmdInfo info_freecell[] = {
{"help", N_("NUMA free memory")},
{"desc", N_("display available free memory for the NUMA cell.")},
{NULL, NULL}
};
static const vshCmdOptDef opts_freecell[] = {
{"cellno", VSH_OT_INT, 0, N_("NUMA cell number")},
{"all", VSH_OT_BOOL, 0, N_("show free memory for all NUMA cells")},
{NULL, 0, 0, NULL}
};
static bool
cmdFreecell(vshControl *ctl, const vshCmd *cmd)
{
bool func_ret = false;
int ret;
int cell = -1, cell_given;
unsigned long long memory;
xmlNodePtr *nodes = NULL;
unsigned long nodes_cnt;
unsigned long *nodes_id = NULL;
unsigned long long *nodes_free = NULL;
int all_given;
int i;
char *cap_xml = NULL;
xmlDocPtr xml = NULL;
xmlXPathContextPtr ctxt = NULL;
if ( (cell_given = vshCommandOptInt(cmd, "cellno", &cell)) < 0) {
vshError(ctl, "%s", _("cell number has to be a number"));
goto cleanup;
}
all_given = vshCommandOptBool(cmd, "all");
if (all_given && cell_given) {
vshError(ctl, "%s", _("--cellno and --all are mutually exclusive. "
"Please choose only one."));
goto cleanup;
}
if (all_given) {
cap_xml = virConnectGetCapabilities(ctl->conn);
if (!cap_xml) {
vshError(ctl, "%s", _("unable to get node capabilities"));
goto cleanup;
}
xml = virXMLParseStringCtxt(cap_xml, _("(capabilities)"), &ctxt);
if (!xml) {
vshError(ctl, "%s", _("unable to get node capabilities"));
goto cleanup;
}
nodes_cnt = virXPathNodeSet("/capabilities/host/topology/cells/cell",
ctxt, &nodes);
if (nodes_cnt == -1) {
vshError(ctl, "%s", _("could not get information about "
"NUMA topology"));
goto cleanup;
}
nodes_free = vshCalloc(ctl, nodes_cnt, sizeof(*nodes_free));
nodes_id = vshCalloc(ctl, nodes_cnt, sizeof(*nodes_id));
for (i = 0; i < nodes_cnt; i++) {
unsigned long id;
char *val = virXMLPropString(nodes[i], "id");
if (virStrToLong_ul(val, NULL, 10, &id)) {
vshError(ctl, "%s", _("conversion from string failed"));
VIR_FREE(val);
goto cleanup;
}
VIR_FREE(val);
nodes_id[i]=id;
ret = virNodeGetCellsFreeMemory(ctl->conn, &(nodes_free[i]), id, 1);
if (ret != 1) {
vshError(ctl, _("failed to get free memory for NUMA node "
"number: %lu"), id);
goto cleanup;
}
}
memory = 0;
for (cell = 0; cell < nodes_cnt; cell++) {
vshPrint(ctl, "%5lu: %10llu KiB\n", nodes_id[cell],
(nodes_free[cell]/1024));
memory += nodes_free[cell];
}
vshPrintExtra(ctl, "--------------------\n");
vshPrintExtra(ctl, "%5s: %10llu KiB\n", _("Total"), memory/1024);
} else {
if (!cell_given) {
memory = virNodeGetFreeMemory(ctl->conn);
if (memory == 0)
goto cleanup;
} else {
ret = virNodeGetCellsFreeMemory(ctl->conn, &memory, cell, 1);
if (ret != 1)
goto cleanup;
}
if (cell == -1)
vshPrint(ctl, "%s: %llu KiB\n", _("Total"), (memory/1024));
else
vshPrint(ctl, "%d: %llu KiB\n", cell, (memory/1024));
}
func_ret = true;
cleanup:
xmlXPathFreeContext(ctxt);
xmlFreeDoc(xml);
VIR_FREE(nodes);
VIR_FREE(nodes_free);
VIR_FREE(nodes_id);
VIR_FREE(cap_xml);
return func_ret;
}
/*
* "nodeinfo" command
*/
static const vshCmdInfo info_nodeinfo[] = {
{"help", N_("node information")},
{"desc", N_("Returns basic information about the node.")},
{NULL, NULL}
};
static bool
cmdNodeinfo(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED)
{
virNodeInfo info;
if (virNodeGetInfo(ctl->conn, &info) < 0) {
vshError(ctl, "%s", _("failed to get node information"));
return false;
}
vshPrint(ctl, "%-20s %s\n", _("CPU model:"), info.model);
vshPrint(ctl, "%-20s %d\n", _("CPU(s):"), info.cpus);
vshPrint(ctl, "%-20s %d MHz\n", _("CPU frequency:"), info.mhz);
vshPrint(ctl, "%-20s %d\n", _("CPU socket(s):"), info.sockets);
vshPrint(ctl, "%-20s %d\n", _("Core(s) per socket:"), info.cores);
vshPrint(ctl, "%-20s %d\n", _("Thread(s) per core:"), info.threads);
vshPrint(ctl, "%-20s %d\n", _("NUMA cell(s):"), info.nodes);
vshPrint(ctl, "%-20s %lu KiB\n", _("Memory size:"), info.memory);
return true;
}
/*
* "nodecpustats" command
*/
static const vshCmdInfo info_nodecpustats[] = {
{"help", N_("Prints cpu stats of the node.")},
{"desc", N_("Returns cpu stats of the node, in nanoseconds.")},
{NULL, NULL}
};
static const vshCmdOptDef opts_node_cpustats[] = {
{"cpu", VSH_OT_INT, 0, N_("prints specified cpu statistics only.")},
{"percent", VSH_OT_BOOL, 0, N_("prints by percentage during 1 second.")},
{NULL, 0, 0, NULL}
};
static bool
cmdNodeCpuStats(vshControl *ctl, const vshCmd *cmd)
{
int i, j;
bool flag_utilization = false;
bool flag_percent = vshCommandOptBool(cmd, "percent");
int cpuNum = VIR_NODE_CPU_STATS_ALL_CPUS;
virNodeCPUStatsPtr params;
int nparams = 0;
bool ret = false;
struct cpu_stats {
unsigned long long user;
unsigned long long sys;
unsigned long long idle;
unsigned long long iowait;
unsigned long long util;
} cpu_stats[2];
double user_time, sys_time, idle_time, iowait_time, total_time;
double usage;
if (vshCommandOptInt(cmd, "cpu", &cpuNum) < 0) {
vshError(ctl, "%s", _("Invalid value of cpuNum"));
return false;
}
if (virNodeGetCPUStats(ctl->conn, cpuNum, NULL, &nparams, 0) != 0) {
vshError(ctl, "%s",
_("Unable to get number of cpu stats"));
return false;
}
if (nparams == 0) {
/* nothing to output */
return true;
}
memset(cpu_stats, 0, sizeof(cpu_stats));
params = vshCalloc(ctl, nparams, sizeof(*params));
for (i = 0; i < 2; i++) {
if (i > 0)
sleep(1);
if (virNodeGetCPUStats(ctl->conn, cpuNum, params, &nparams, 0) != 0) {
vshError(ctl, "%s", _("Unable to get node cpu stats"));
goto cleanup;
}
for (j = 0; j < nparams; j++) {
unsigned long long value = params[j].value;
if (STREQ(params[j].field, VIR_NODE_CPU_STATS_KERNEL)) {
cpu_stats[i].sys = value;
} else if (STREQ(params[j].field, VIR_NODE_CPU_STATS_USER)) {
cpu_stats[i].user = value;
} else if (STREQ(params[j].field, VIR_NODE_CPU_STATS_IDLE)) {
cpu_stats[i].idle = value;
} else if (STREQ(params[j].field, VIR_NODE_CPU_STATS_IOWAIT)) {
cpu_stats[i].iowait = value;
} else if (STREQ(params[j].field, VIR_NODE_CPU_STATS_UTILIZATION)) {
cpu_stats[i].util = value;
flag_utilization = true;
}
}
if (flag_utilization || !flag_percent)
break;
}
if (!flag_percent) {
if (!flag_utilization) {
vshPrint(ctl, "%-15s %20llu\n", _("user:"), cpu_stats[0].user);
vshPrint(ctl, "%-15s %20llu\n", _("system:"), cpu_stats[0].sys);
vshPrint(ctl, "%-15s %20llu\n", _("idle:"), cpu_stats[0].idle);
vshPrint(ctl, "%-15s %20llu\n", _("iowait:"), cpu_stats[0].iowait);
}
} else {
if (flag_utilization) {
usage = cpu_stats[0].util;
vshPrint(ctl, "%-15s %5.1lf%%\n", _("usage:"), usage);
vshPrint(ctl, "%-15s %5.1lf%%\n", _("idle:"), 100 - usage);
} else {
user_time = cpu_stats[1].user - cpu_stats[0].user;
sys_time = cpu_stats[1].sys - cpu_stats[0].sys;
idle_time = cpu_stats[1].idle - cpu_stats[0].idle;
iowait_time = cpu_stats[1].iowait - cpu_stats[0].iowait;
total_time = user_time + sys_time + idle_time + iowait_time;
usage = (user_time + sys_time) / total_time * 100;
vshPrint(ctl, "%-15s %5.1lf%%\n",
_("usage:"), usage);
vshPrint(ctl, "%-15s %5.1lf%%\n",
_("user:"), user_time / total_time * 100);
vshPrint(ctl, "%-15s %5.1lf%%\n",
_("system:"), sys_time / total_time * 100);
vshPrint(ctl, "%-15s %5.1lf%%\n",
_("idle:"), idle_time / total_time * 100);
vshPrint(ctl, "%-15s %5.1lf%%\n",
_("iowait:"), iowait_time / total_time * 100);
}
}
ret = true;
cleanup:
VIR_FREE(params);
return ret;
}
/*
* "nodememstats" command
*/
static const vshCmdInfo info_nodememstats[] = {
{"help", N_("Prints memory stats of the node.")},
{"desc", N_("Returns memory stats of the node, in kilobytes.")},
{NULL, NULL}
};
static const vshCmdOptDef opts_node_memstats[] = {
{"cell", VSH_OT_INT, 0, N_("prints specified cell statistics only.")},
{NULL, 0, 0, NULL}
};
static bool
cmdNodeMemStats(vshControl *ctl, const vshCmd *cmd)
{
int nparams = 0;
unsigned int i = 0;
int cellNum = VIR_NODE_MEMORY_STATS_ALL_CELLS;
virNodeMemoryStatsPtr params = NULL;
bool ret = false;
if (vshCommandOptInt(cmd, "cell", &cellNum) < 0) {
vshError(ctl, "%s", _("Invalid value of cellNum"));
return false;
}
/* get the number of memory parameters */
if (virNodeGetMemoryStats(ctl->conn, cellNum, NULL, &nparams, 0) != 0) {
vshError(ctl, "%s",
_("Unable to get number of memory stats"));
goto cleanup;
}
if (nparams == 0) {
/* nothing to output */
ret = true;
goto cleanup;
}
/* now go get all the memory parameters */
params = vshCalloc(ctl, nparams, sizeof(*params));
if (virNodeGetMemoryStats(ctl->conn, cellNum, params, &nparams, 0) != 0) {
vshError(ctl, "%s", _("Unable to get memory stats"));
goto cleanup;
}
for (i = 0; i < nparams; i++)
vshPrint(ctl, "%-7s: %20llu KiB\n", params[i].field, params[i].value);
ret = true;
cleanup:
VIR_FREE(params);
return ret;
}
/*
* "nodesuspend" command
*/
static const vshCmdInfo info_nodesuspend[] = {
{"help", N_("suspend the host node for a given time duration")},
{"desc", N_("Suspend the host node for a given time duration "
"and attempt to resume thereafter.")},
{NULL, NULL}
};
static const vshCmdOptDef opts_node_suspend[] = {
{"target", VSH_OT_DATA, VSH_OFLAG_REQ, N_("mem(Suspend-to-RAM), "
"disk(Suspend-to-Disk), hybrid(Hybrid-Suspend)")},
{"duration", VSH_OT_INT, VSH_OFLAG_REQ, N_("Suspend duration in seconds, at least 60")},
{"flags", VSH_OT_INT, VSH_OFLAG_NONE, N_("Suspend flags, 0 for default")},
{NULL, 0, 0, NULL}
};
static bool
cmdNodeSuspend(vshControl *ctl, const vshCmd *cmd)
{
const char *target = NULL;
unsigned int suspendTarget;
long long duration;
unsigned int flags = 0;
if (vshCommandOptString(cmd, "target", &target) < 0) {
vshError(ctl, _("Invalid target argument"));
return false;
}
if (vshCommandOptLongLong(cmd, "duration", &duration) < 0) {
vshError(ctl, _("Invalid duration argument"));
return false;
}
if (vshCommandOptUInt(cmd, "flags", &flags) < 0) {
vshError(ctl, _("Invalid flags argument"));
return false;
}
if (STREQ(target, "mem"))
suspendTarget = VIR_NODE_SUSPEND_TARGET_MEM;
else if (STREQ(target, "disk"))
suspendTarget = VIR_NODE_SUSPEND_TARGET_DISK;
else if (STREQ(target, "hybrid"))
suspendTarget = VIR_NODE_SUSPEND_TARGET_HYBRID;
else {
vshError(ctl, "%s", _("Invalid target"));
return false;
}
if (duration <= 0) {
vshError(ctl, "%s", _("Invalid duration"));
return false;
}
if (virNodeSuspendForDuration(ctl->conn, suspendTarget, duration,
flags) < 0) {
vshError(ctl, "%s", _("The host was not suspended"));
return false;
}
return true;
}
/*
* "qemu-monitor-command" command
*/
static const vshCmdInfo info_qemu_monitor_command[] = {
{"help", N_("QEMU Monitor Command")},
{"desc", N_("QEMU Monitor Command")},
{NULL, NULL}
};
static const vshCmdOptDef opts_qemu_monitor_command[] = {
{"domain", VSH_OT_DATA, VSH_OFLAG_REQ, N_("domain name, id or uuid")},
{"hmp", VSH_OT_BOOL, 0, N_("command is in human monitor protocol")},
{"pretty", VSH_OT_BOOL, 0,
N_("pretty-print any qemu monitor protocol output")},
{"cmd", VSH_OT_ARGV, VSH_OFLAG_REQ, N_("command")},
{NULL, 0, 0, NULL}
};
static bool
cmdQemuMonitorCommand(vshControl *ctl, const vshCmd *cmd)
{
virDomainPtr dom = NULL;
bool ret = false;
char *monitor_cmd = NULL;
char *result = NULL;
unsigned int flags = 0;
const vshCmdOpt *opt = NULL;
virBuffer buf = VIR_BUFFER_INITIALIZER;
bool pad = false;
virJSONValuePtr pretty = NULL;
dom = vshCommandOptDomain(ctl, cmd, NULL);
if (dom == NULL)
goto cleanup;
while ((opt = vshCommandOptArgv(cmd, opt))) {
if (pad)
virBufferAddChar(&buf, ' ');
pad = true;
virBufferAdd(&buf, opt->data, -1);
}
if (virBufferError(&buf)) {
vshPrint(ctl, "%s", _("Failed to collect command"));
goto cleanup;
}
monitor_cmd = virBufferContentAndReset(&buf);
if (vshCommandOptBool(cmd, "hmp")) {
if (vshCommandOptBool(cmd, "pretty")) {
vshError(ctl, _("--hmp and --pretty are not compatible"));
goto cleanup;
}
flags |= VIR_DOMAIN_QEMU_MONITOR_COMMAND_HMP;
}
if (virDomainQemuMonitorCommand(dom, monitor_cmd, &result, flags) < 0)
goto cleanup;
if (vshCommandOptBool(cmd, "pretty")) {
char *tmp;
pretty = virJSONValueFromString(result);
if (pretty && (tmp = virJSONValueToString(pretty, true))) {
VIR_FREE(result);
result = tmp;
} else {
vshResetLibvirtError();
}
}
vshPrint(ctl, "%s\n", result);
ret = true;
cleanup:
VIR_FREE(result);
VIR_FREE(monitor_cmd);
virJSONValueFree(pretty);
if (dom)
virDomainFree(dom);
return ret;
}
/*
* "qemu-attach" command
*/
static const vshCmdInfo info_qemu_attach[] = {
{"help", N_("QEMU Attach")},
{"desc", N_("QEMU Attach")},
{NULL, NULL}
};
static const vshCmdOptDef opts_qemu_attach[] = {
{"pid", VSH_OT_DATA, VSH_OFLAG_REQ, N_("pid")},
{NULL, 0, 0, NULL}
};
static bool
cmdQemuAttach(vshControl *ctl, const vshCmd *cmd)
{
virDomainPtr dom = NULL;
bool ret = false;
unsigned int flags = 0;
unsigned int pid_value; /* API uses unsigned int, not pid_t */
if (vshCommandOptUInt(cmd, "pid", &pid_value) <= 0) {
vshError(ctl, "%s", _("missing pid value"));
goto cleanup;
}
if (!(dom = virDomainQemuAttach(ctl->conn, pid_value, flags)))
goto cleanup;
if (dom != NULL) {
vshPrint(ctl, _("Domain %s attached to pid %u\n"),
virDomainGetName(dom), pid_value);
virDomainFree(dom);
ret = true;
} else {
vshError(ctl, _("Failed to attach to pid %u"), pid_value);
}
cleanup:
return ret;
}
/*
* "qemu-agent-command" command
*/
static const vshCmdInfo info_qemu_agent_command[] = {
{"help", N_("QEMU Guest Agent Command")},
{"desc", N_("Run an arbitrary qemu guest agent command; use at your own risk")},
{NULL, NULL}
};
static const vshCmdOptDef opts_qemu_agent_command[] = {
{"domain", VSH_OT_DATA, VSH_OFLAG_REQ, N_("domain name, id or uuid")},
{"timeout", VSH_OT_INT, VSH_OFLAG_REQ_OPT, N_("timeout seconds. must be positive.")},
{"async", VSH_OT_BOOL, 0, N_("execute command without waiting for timeout")},
{"block", VSH_OT_BOOL, 0, N_("execute command without timeout")},
{"cmd", VSH_OT_ARGV, VSH_OFLAG_REQ, N_("command")},
{NULL, 0, 0, NULL}
};
static bool
cmdQemuAgentCommand(vshControl *ctl, const vshCmd *cmd)
{
virDomainPtr dom = NULL;
bool ret = false;
char *guest_agent_cmd = NULL;
char *result = NULL;
int timeout = VIR_DOMAIN_QEMU_AGENT_COMMAND_DEFAULT;
int judge = 0;
unsigned int flags = 0;
const vshCmdOpt *opt = NULL;
virBuffer buf = VIR_BUFFER_INITIALIZER;
bool pad = false;
dom = vshCommandOptDomain(ctl, cmd, NULL);
if (dom == NULL)
goto cleanup;
while ((opt = vshCommandOptArgv(cmd, opt))) {
if (pad)
virBufferAddChar(&buf, ' ');
pad = true;
virBufferAdd(&buf, opt->data, -1);
}
if (virBufferError(&buf)) {
vshPrint(ctl, "%s", _("Failed to collect command"));
goto cleanup;
}
guest_agent_cmd = virBufferContentAndReset(&buf);
judge = vshCommandOptInt(cmd, "timeout", &timeout);
if (judge < 0) {
vshError(ctl, "%s", _("timeout number has to be a number"));
goto cleanup;
} else if (judge > 0) {
judge = 1;
}
if (judge && timeout < 1) {
vshError(ctl, "%s", _("timeout must be positive"));
goto cleanup;
}
if (vshCommandOptBool(cmd, "async")) {
timeout = VIR_DOMAIN_QEMU_AGENT_COMMAND_NOWAIT;
judge++;
}
if (vshCommandOptBool(cmd, "block")) {
timeout = VIR_DOMAIN_QEMU_AGENT_COMMAND_BLOCK;
judge++;
}
if (judge > 1) {
vshError(ctl, "%s", _("timeout, async and block options are exclusive"));
goto cleanup;
}
result = virDomainQemuAgentCommand(dom, guest_agent_cmd, timeout, flags);
if (result) printf("%s\n", result);
ret = true;
cleanup:
VIR_FREE(result);
VIR_FREE(guest_agent_cmd);
if (dom)
virDomainFree(dom);
return ret;
}
/*
* "sysinfo" command
*/
static const vshCmdInfo info_sysinfo[] = {
{"help", N_("print the hypervisor sysinfo")},
{"desc",
N_("output an XML string for the hypervisor sysinfo, if available")},
{NULL, NULL}
};
static bool
cmdSysinfo(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED)
{
char *sysinfo;
sysinfo = virConnectGetSysinfo(ctl->conn, 0);
if (sysinfo == NULL) {
vshError(ctl, "%s", _("failed to get sysinfo"));
return false;
}
vshPrint(ctl, "%s", sysinfo);
VIR_FREE(sysinfo);
return true;
}
/*
* "hostname" command
*/
static const vshCmdInfo info_hostname[] = {
{"help", N_("print the hypervisor hostname")},
{"desc", ""},
{NULL, NULL}
};
static bool
cmdHostname(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED)
{
char *hostname;
hostname = virConnectGetHostname(ctl->conn);
if (hostname == NULL) {
vshError(ctl, "%s", _("failed to get hostname"));
return false;
}
vshPrint (ctl, "%s\n", hostname);
VIR_FREE(hostname);
return true;
}
/*
* "uri" command
*/
static const vshCmdInfo info_uri[] = {
{"help", N_("print the hypervisor canonical URI")},
{"desc", ""},
{NULL, NULL}
};
static bool
cmdURI(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED)
{
char *uri;
uri = virConnectGetURI(ctl->conn);
if (uri == NULL) {
vshError(ctl, "%s", _("failed to get URI"));
return false;
}
vshPrint(ctl, "%s\n", uri);
VIR_FREE(uri);
return true;
}
/*
* "version" command
*/
static const vshCmdInfo info_version[] = {
{"help", N_("show version")},
{"desc", N_("Display the system version information.")},
{NULL, NULL}
};
static const vshCmdOptDef opts_version[] = {
{"daemon", VSH_OT_BOOL, VSH_OFLAG_NONE, N_("report daemon version too")},
{NULL, 0, 0, NULL}
};
static bool
cmdVersion(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED)
{
unsigned long hvVersion;
const char *hvType;
unsigned long libVersion;
unsigned long includeVersion;
unsigned long apiVersion;
unsigned long daemonVersion;
int ret;
unsigned int major;
unsigned int minor;
unsigned int rel;
hvType = virConnectGetType(ctl->conn);
if (hvType == NULL) {
vshError(ctl, "%s", _("failed to get hypervisor type"));
return false;
}
includeVersion = LIBVIR_VERSION_NUMBER;
major = includeVersion / 1000000;
includeVersion %= 1000000;
minor = includeVersion / 1000;
rel = includeVersion % 1000;
vshPrint(ctl, _("Compiled against library: libvirt %d.%d.%d\n"),
major, minor, rel);
ret = virGetVersion(&libVersion, hvType, &apiVersion);
if (ret < 0) {
vshError(ctl, "%s", _("failed to get the library version"));
return false;
}
major = libVersion / 1000000;
libVersion %= 1000000;
minor = libVersion / 1000;
rel = libVersion % 1000;
vshPrint(ctl, _("Using library: libvirt %d.%d.%d\n"),
major, minor, rel);
major = apiVersion / 1000000;
apiVersion %= 1000000;
minor = apiVersion / 1000;
rel = apiVersion % 1000;
vshPrint(ctl, _("Using API: %s %d.%d.%d\n"), hvType,
major, minor, rel);
ret = virConnectGetVersion(ctl->conn, &hvVersion);
if (ret < 0) {
vshError(ctl, "%s", _("failed to get the hypervisor version"));
return false;
}
if (hvVersion == 0) {
vshPrint(ctl,
_("Cannot extract running %s hypervisor version\n"), hvType);
} else {
major = hvVersion / 1000000;
hvVersion %= 1000000;
minor = hvVersion / 1000;
rel = hvVersion % 1000;
vshPrint(ctl, _("Running hypervisor: %s %d.%d.%d\n"),
hvType, major, minor, rel);
}
if (vshCommandOptBool(cmd, "daemon")) {
ret = virConnectGetLibVersion(ctl->conn, &daemonVersion);
if (ret < 0) {
vshError(ctl, "%s", _("failed to get the daemon version"));
} else {
major = daemonVersion / 1000000;
daemonVersion %= 1000000;
minor = daemonVersion / 1000;
rel = daemonVersion % 1000;
vshPrint(ctl, _("Running against daemon: %d.%d.%d\n"),
major, minor, rel);
}
}
return true;
}
static const vshCmdInfo info_node_memory_tune[] = {
{"help", N_("Get or set node memory parameters")},
{"desc", N_("Get or set node memory parameters"
" To get the memory parameters, use following command: \n\n"
" virsh # node-memory-tune")},
{NULL, NULL}
};
static const vshCmdOptDef opts_node_memory_tune[] = {
{"shm-pages-to-scan", VSH_OT_INT, VSH_OFLAG_NONE,
N_("number of pages to scan before the shared memory service "
"goes to sleep")},
{"shm-sleep-millisecs", VSH_OT_INT, VSH_OFLAG_NONE,
N_("number of millisecs the shared memory service should "
"sleep before next scan")},
{"shm-merge-across-nodes", VSH_OT_INT, VSH_OFLAG_NONE,
N_("Specifies if pages from different numa nodes can be merged")},
{NULL, 0, 0, NULL}
};
static bool
cmdNodeMemoryTune(vshControl *ctl, const vshCmd *cmd)
{
virTypedParameterPtr params = NULL;
int nparams = 0;
unsigned int flags = 0;
unsigned int shm_pages_to_scan = 0;
unsigned int shm_sleep_millisecs = 0;
unsigned int shm_merge_across_nodes = 0;
bool ret = false;
int i = 0;
if (vshCommandOptUInt(cmd, "shm-pages-to-scan",
&shm_pages_to_scan) < 0) {
vshError(ctl, "%s", _("invalid shm-pages-to-scan number"));
return false;
}
if (vshCommandOptUInt(cmd, "shm-sleep-millisecs",
&shm_sleep_millisecs) < 0) {
vshError(ctl, "%s", _("invalid shm-sleep-millisecs number"));
return false;
}
if (vshCommandOptUInt(cmd, "shm-merge-across-nodes",
&shm_merge_across_nodes) < 0) {
vshError(ctl, "%s", _("invalid shm-merge-across-nodes number"));
return false;
}
if (shm_pages_to_scan)
nparams++;
if (shm_sleep_millisecs)
nparams++;
if (shm_merge_across_nodes)
nparams++;
if (nparams == 0) {
/* Get the number of memory parameters */
if (virNodeGetMemoryParameters(ctl->conn, NULL, &nparams, flags) != 0) {
vshError(ctl, "%s",
_("Unable to get number of memory parameters"));
goto cleanup;
}
if (nparams == 0) {
ret = true;
goto cleanup;
}
/* Now go get all the memory parameters */
params = vshCalloc(ctl, nparams, sizeof(*params));
if (virNodeGetMemoryParameters(ctl->conn, params, &nparams, flags) != 0) {
vshError(ctl, "%s", _("Unable to get memory parameters"));
goto cleanup;
}
/* XXX: Need to sort the returned params once new parameter
* fields not of shared memory are added.
*/
vshPrint(ctl, _("Shared memory:\n"));
for (i = 0; i < nparams; i++) {
char *str = vshGetTypedParamValue(ctl, &params[i]);
vshPrint(ctl, "\t%-15s %s\n", params[i].field, str);
VIR_FREE(str);
}
ret = true;
} else {
/* Set the memory parameters */
params = vshCalloc(ctl, nparams, sizeof(*params));
if (i < nparams && shm_pages_to_scan) {
if (virTypedParameterAssign(&params[i++],
VIR_NODE_MEMORY_SHARED_PAGES_TO_SCAN,
VIR_TYPED_PARAM_UINT,
shm_pages_to_scan) < 0)
goto error;
}
if (i < nparams && shm_sleep_millisecs) {
if (virTypedParameterAssign(&params[i++],
VIR_NODE_MEMORY_SHARED_SLEEP_MILLISECS,
VIR_TYPED_PARAM_UINT,
shm_sleep_millisecs) < 0)
goto error;
}
if (i < nparams && shm_merge_across_nodes) {
if (virTypedParameterAssign(&params[i++],
VIR_NODE_MEMORY_SHARED_MERGE_ACROSS_NODES,
VIR_TYPED_PARAM_UINT,
shm_merge_across_nodes) < 0)
goto error;
}
if (virNodeSetMemoryParameters(ctl->conn, params, nparams, flags) != 0)
goto error;
else
ret = true;
}
cleanup:
VIR_FREE(params);
return ret;
error:
vshError(ctl, "%s", _("Unable to change memory parameters"));
goto cleanup;
}
const vshCmdDef hostAndHypervisorCmds[] = {
{"capabilities", cmdCapabilities, NULL, info_capabilities, 0},
{"connect", cmdConnect, opts_connect, info_connect,
VSH_CMD_FLAG_NOCONNECT},
{"freecell", cmdFreecell, opts_freecell, info_freecell, 0},
{"hostname", cmdHostname, NULL, info_hostname, 0},
{"node-memory-tune", cmdNodeMemoryTune,
opts_node_memory_tune, info_node_memory_tune, 0},
{"nodecpustats", cmdNodeCpuStats, opts_node_cpustats, info_nodecpustats, 0},
{"nodeinfo", cmdNodeinfo, NULL, info_nodeinfo, 0},
{"nodememstats", cmdNodeMemStats, opts_node_memstats, info_nodememstats, 0},
{"nodesuspend", cmdNodeSuspend, opts_node_suspend, info_nodesuspend, 0},
{"qemu-attach", cmdQemuAttach, opts_qemu_attach, info_qemu_attach, 0},
{"qemu-monitor-command", cmdQemuMonitorCommand, opts_qemu_monitor_command,
info_qemu_monitor_command, 0},
{"qemu-agent-command", cmdQemuAgentCommand, opts_qemu_agent_command,
info_qemu_agent_command, 0},
{"sysinfo", cmdSysinfo, NULL, info_sysinfo, 0},
{"uri", cmdURI, NULL, info_uri, 0},
{"version", cmdVersion, opts_version, info_version, 0},
{NULL, NULL, NULL, NULL, 0}
};