virsh-host.c 26.4 KB
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/*
 * 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
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 * License along with this library.  If not, see
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 * <http://www.gnu.org/licenses/>.
 *
 *  Daniel Veillard <veillard@redhat.com>
 *  Karel Zak <kzak@redhat.com>
 *  Daniel P. Berrange <berrange@redhat.com>
 *
 */

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#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"
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#include "virbuffer.h"
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#include "viralloc.h"
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#include "virsh-domain.h"
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#include "virxml.h"
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#include "virtypedparam.h"
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#include "virstring.h"
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/*
 * "capabilities" command
 */
static const vshCmdInfo info_capabilities[] = {
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    {.name = "help",
     .data = N_("capabilities")
    },
    {.name = "desc",
     .data = N_("Returns capabilities of hypervisor/driver.")
    },
    {.name = NULL}
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};

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;
}

/*
 * "freecell" command
 */
static const vshCmdInfo info_freecell[] = {
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    {.name = "help",
     .data = N_("NUMA free memory")
    },
    {.name = "desc",
     .data = N_("display available free memory for the NUMA cell.")
    },
    {.name = NULL}
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};

static const vshCmdOptDef opts_freecell[] = {
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    {.name = "cellno",
     .type = VSH_OT_INT,
     .help = N_("NUMA cell number")
    },
    {.name = "all",
     .type = VSH_OT_BOOL,
     .help = N_("show free memory for all NUMA cells")
    },
    {.name = NULL}
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};

static bool
cmdFreecell(vshControl *ctl, const vshCmd *cmd)
{
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    bool ret = false;
    int cell = -1;
    unsigned long long memory = 0;
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    xmlNodePtr *nodes = NULL;
    unsigned long nodes_cnt;
    unsigned long *nodes_id = NULL;
    unsigned long long *nodes_free = NULL;
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    bool all = vshCommandOptBool(cmd, "all");
    bool cellno = vshCommandOptBool(cmd, "cellno");
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    size_t i;
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    char *cap_xml = NULL;
    xmlDocPtr xml = NULL;
    xmlXPathContextPtr ctxt = NULL;

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    VSH_EXCLUSIVE_OPTIONS_VAR(all, cellno);
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    if (cellno && vshCommandOptInt(cmd, "cellno", &cell) < 0) {
        vshError(ctl, "%s", _("cell number has to be a number"));
        return false;
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    }

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    if (all) {
        if (!(cap_xml = virConnectGetCapabilities(ctl->conn))) {
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            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;
        }
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        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);
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            nodes_id[i] = id;
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            if (virNodeGetCellsFreeMemory(ctl->conn, &(nodes_free[i]),
                                          id, 1) != 1) {
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                vshError(ctl, _("failed to get free memory for NUMA node "
                                "number: %lu"), id);
                goto cleanup;
            }
        }

        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 {
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        if (cellno) {
            if (virNodeGetCellsFreeMemory(ctl->conn, &memory, cell, 1) != 1)
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                goto cleanup;
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            vshPrint(ctl, "%d: %llu KiB\n", cell, (memory/1024));
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        } else {
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            if ((memory = virNodeGetFreeMemory(ctl->conn)) == 0)
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                goto cleanup;

            vshPrint(ctl, "%s: %llu KiB\n", _("Total"), (memory/1024));
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        }
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    }

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    ret = true;
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cleanup:
    xmlXPathFreeContext(ctxt);
    xmlFreeDoc(xml);
    VIR_FREE(nodes);
    VIR_FREE(nodes_free);
    VIR_FREE(nodes_id);
    VIR_FREE(cap_xml);
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    return ret;
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}

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/*
 * "maxvcpus" command
 */
static const vshCmdInfo info_maxvcpus[] = {
    {.name = "help",
     .data = N_("connection vcpu maximum")
    },
    {.name = "desc",
     .data = N_("Show maximum number of virtual CPUs for guests on this connection.")
    },
    {.name = NULL}
};

static const vshCmdOptDef opts_maxvcpus[] = {
    {.name = "type",
     .type = VSH_OT_STRING,
     .help = N_("domain type")
    },
    {.name = NULL}
};

static bool
cmdMaxvcpus(vshControl *ctl, const vshCmd *cmd)
{
    const char *type = NULL;
    int vcpus;

    if (vshCommandOptStringReq(ctl, cmd, "type", &type) < 0)
        return false;

    if ((vcpus = virConnectGetMaxVcpus(ctl->conn, type)) < 0)
        return false;

    vshPrint(ctl, "%d\n", vcpus);

    return true;
}

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/*
 * "nodeinfo" command
 */
static const vshCmdInfo info_nodeinfo[] = {
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    {.name = "help",
     .data = N_("node information")
    },
    {.name = "desc",
     .data = N_("Returns basic information about the node.")
    },
    {.name = NULL}
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};

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;
}

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/*
 * "nodecpumap" command
 */
static const vshCmdInfo info_node_cpumap[] = {
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    {.name = "help",
     .data = N_("node cpu map")
    },
    {.name = "desc",
     .data = N_("Displays the node's total number of CPUs, the number of"
                " online CPUs and the list of online CPUs.")
    },
    {.name = NULL}
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};

static bool
cmdNodeCpuMap(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED)
{
    int cpu, cpunum;
    unsigned char *cpumap = NULL;
    unsigned int online;
    bool ret = false;

    cpunum = virNodeGetCPUMap(ctl->conn, &cpumap, &online, 0);
    if (cpunum < 0) {
        vshError(ctl, "%s", _("Unable to get cpu map"));
        goto cleanup;
    }

    vshPrint(ctl, "%-15s %d\n", _("CPUs present:"), cpunum);
    vshPrint(ctl, "%-15s %d\n", _("CPUs online:"), online);

    vshPrint(ctl, "%-15s ", _("CPU map:"));
    for (cpu = 0; cpu < cpunum; cpu++)
        vshPrint(ctl, "%c", VIR_CPU_USED(cpumap, cpu) ? 'y' : '-');
    vshPrint(ctl, "\n");

    ret = true;

  cleanup:
    VIR_FREE(cpumap);
    return ret;
}

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/*
 * "nodecpustats" command
 */
static const vshCmdInfo info_nodecpustats[] = {
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    {.name = "help",
     .data = N_("Prints cpu stats of the node.")
    },
    {.name = "desc",
     .data = N_("Returns cpu stats of the node, in nanoseconds.")
    },
    {.name = NULL}
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};

static const vshCmdOptDef opts_node_cpustats[] = {
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    {.name = "cpu",
     .type = VSH_OT_INT,
     .help = N_("prints specified cpu statistics only.")
    },
    {.name = "percent",
     .type = VSH_OT_BOOL,
     .help = N_("prints by percentage during 1 second.")
    },
    {.name = NULL}
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};

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typedef enum {
    VSH_CPU_USER,
    VSH_CPU_SYSTEM,
    VSH_CPU_IDLE,
    VSH_CPU_IOWAIT,
    VSH_CPU_INTR,
    VSH_CPU_USAGE,
    VSH_CPU_LAST
} vshCPUStats;

VIR_ENUM_DECL(vshCPUStats);
VIR_ENUM_IMPL(vshCPUStats, VSH_CPU_LAST,
              VIR_NODE_CPU_STATS_USER,
              VIR_NODE_CPU_STATS_KERNEL,
              VIR_NODE_CPU_STATS_IDLE,
              VIR_NODE_CPU_STATS_IOWAIT,
              VIR_NODE_CPU_STATS_INTR,
              VIR_NODE_CPU_STATS_UTILIZATION);

const char *vshCPUOutput[] = {
    "user:",
    "system:",
    "idle:",
    "iowait:",
    "intr:",
    "usage:"
};

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static bool
cmdNodeCpuStats(vshControl *ctl, const vshCmd *cmd)
{
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    size_t i, j;
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    bool flag_percent = vshCommandOptBool(cmd, "percent");
    int cpuNum = VIR_NODE_CPU_STATS_ALL_CPUS;
    virNodeCPUStatsPtr params;
    int nparams = 0;
    bool ret = false;
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    unsigned long long cpu_stats[VSH_CPU_LAST] = { 0 };
    bool present[VSH_CPU_LAST] = { false };
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    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 (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++) {
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            int field = vshCPUStatsTypeFromString(params[j].field);

            if (field < 0)
                continue;

            if (i == 0) {
                cpu_stats[field] = params[j].value;
                present[field] = true;
            } else if (present[field]) {
                cpu_stats[field] = params[j].value - cpu_stats[field];
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            }
        }

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        if (present[VSH_CPU_USAGE] || !flag_percent)
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            break;
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        sleep(1);
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    }

    if (!flag_percent) {
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        for (i = 0; i < VSH_CPU_USAGE; i++) {
            if (present[i]) {
                vshPrint(ctl, "%-15s %20llu\n", _(vshCPUOutput[i]),
                         cpu_stats[i]);
            }
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        }
    } else {
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        if (present[VSH_CPU_USAGE]) {
            vshPrint(ctl, "%-15s %5.1llu%%\n", _("usage:"), cpu_stats[VSH_CPU_USAGE]);
            vshPrint(ctl, "%-15s %5.1llu%%\n", _("idle:"), 100 - cpu_stats[VSH_CPU_USAGE]);
        } else {
            double usage, total_time = 0;
            for (i = 0; i < VSH_CPU_USAGE; i++)
                total_time += cpu_stats[i];

            usage = (cpu_stats[VSH_CPU_USER] + cpu_stats[VSH_CPU_SYSTEM]) / total_time * 100;
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            vshPrint(ctl, "%-15s %5.1lf%%\n", _("usage:"), usage);
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            for (i = 0; i < VSH_CPU_USAGE; i++) {
                if (present[i]) {
                    vshPrint(ctl, "%-15s %5.1lf%%\n", _(vshCPUOutput[i]),
                             cpu_stats[i] / total_time * 100);
                }
            }
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        }
    }

    ret = true;

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cleanup:
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    VIR_FREE(params);
    return ret;
}

/*
 * "nodememstats" command
 */
static const vshCmdInfo info_nodememstats[] = {
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    {.name = "help",
     .data = N_("Prints memory stats of the node.")
    },
    {.name = "desc",
     .data = N_("Returns memory stats of the node, in kilobytes.")
    },
    {.name = NULL}
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};

static const vshCmdOptDef opts_node_memstats[] = {
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    {.name = "cell",
     .type = VSH_OT_INT,
     .help = N_("prints specified cell statistics only.")
    },
    {.name = NULL}
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};

static bool
cmdNodeMemStats(vshControl *ctl, const vshCmd *cmd)
{
    int nparams = 0;
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    size_t i;
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    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[] = {
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    {.name = "help",
     .data = N_("suspend the host node for a given time duration")
    },
    {.name = "desc",
     .data = N_("Suspend the host node for a given time duration "
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                "and attempt to resume thereafter.")
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    },
    {.name = NULL}
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};

static const vshCmdOptDef opts_node_suspend[] = {
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    {.name = "target",
     .type = VSH_OT_DATA,
     .flags = VSH_OFLAG_REQ,
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     .help = N_("mem(Suspend-to-RAM), disk(Suspend-to-Disk), "
                "hybrid(Hybrid-Suspend)")
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    },
    {.name = "duration",
     .type = VSH_OT_INT,
     .flags = VSH_OFLAG_REQ,
     .help = N_("Suspend duration in seconds, at least 60")
    },
    {.name = NULL}
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};

static bool
cmdNodeSuspend(vshControl *ctl, const vshCmd *cmd)
{
    const char *target = NULL;
    unsigned int suspendTarget;
    long long duration;

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    if (vshCommandOptStringReq(ctl, cmd, "target", &target) < 0)
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        return false;

    if (vshCommandOptLongLong(cmd, "duration", &duration) < 0) {
        vshError(ctl, _("Invalid duration 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;
    }

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    if (duration < 0) {
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        vshError(ctl, "%s", _("Invalid duration"));
        return false;
    }

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    if (virNodeSuspendForDuration(ctl->conn, suspendTarget, duration, 0) < 0) {
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        vshError(ctl, "%s", _("The host was not suspended"));
        return false;
    }
    return true;
}

/*
 * "sysinfo" command
 */
static const vshCmdInfo info_sysinfo[] = {
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    {.name = "help",
     .data = N_("print the hypervisor sysinfo")
    },
    {.name = "desc",
     .data = N_("output an XML string for the hypervisor sysinfo, if available")
    },
    {.name = NULL}
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};

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[] = {
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    {.name = "help",
     .data = N_("print the hypervisor hostname")
    },
    {.name = "desc",
     .data = ""
    },
    {.name = NULL}
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};

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;
    }

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    vshPrint(ctl, "%s\n", hostname);
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    VIR_FREE(hostname);

    return true;
}

/*
 * "uri" command
 */
static const vshCmdInfo info_uri[] = {
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    {.name = "help",
     .data = N_("print the hypervisor canonical URI")
    },
    {.name = "desc",
     .data = ""
    },
    {.name = NULL}
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};

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;
}

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/*
 * "cpu-models" command
 */
static const vshCmdInfo info_cpu_models[] = {
    {.name = "help",
     .data = N_("CPU models")
    },
    {.name = "desc",
     .data = N_("Get the CPU models for an arch.")
    },
    {.name = NULL}
};

static const vshCmdOptDef opts_cpu_models[] = {
    {.name = "arch",
     .type = VSH_OT_DATA,
     .flags = VSH_OFLAG_REQ,
     .help = N_("architecture")
    },
    {.name = NULL}
};

static bool
cmdCPUModelNames(vshControl *ctl, const vshCmd *cmd)
{
    char **models;
    size_t i;
    int nmodels;
    const char *arch = NULL;

    if (vshCommandOptStringReq(ctl, cmd, "arch", &arch) < 0)
        return false;

    nmodels = virConnectGetCPUModelNames(ctl->conn, arch, &models, 0);
    if (nmodels < 0) {
        vshError(ctl, "%s", _("failed to get CPU model names"));
        return false;
    }

    for (i = 0; i < nmodels; i++) {
        vshPrint(ctl, "%s\n", models[i]);
        VIR_FREE(models[i]);
    }
    VIR_FREE(models);

    return true;
}

724 725 726 727
/*
 * "version" command
 */
static const vshCmdInfo info_version[] = {
728 729 730 731 732 733 734
    {.name = "help",
     .data = N_("show version")
    },
    {.name = "desc",
     .data = N_("Display the system version information.")
    },
    {.name = NULL}
735 736 737
};

static const vshCmdOptDef opts_version[] = {
738 739 740 741 742
    {.name = "daemon",
     .type = VSH_OT_BOOL,
     .help = N_("report daemon version too")
    },
    {.name = NULL}
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};

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;
770
    vshPrint(ctl, _("Compiled against library: libvirt %d.%d.%d\n"),
771 772 773 774 775 776 777 778 779 780 781
             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;
782
    vshPrint(ctl, _("Using library: libvirt %d.%d.%d\n"),
783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825
             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;
}
826

827 828
static const vshCmdInfo info_node_memory_tune[] = {
    {"help", N_("Get or set node memory parameters")},
829
    {"desc", N_("Get or set node memory parameters\n"
830 831 832 833 834 835
                "    To get the memory parameters, use following command: \n\n"
                "    virsh # node-memory-tune")},
    {NULL, NULL}
};

static const vshCmdOptDef opts_node_memory_tune[] = {
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    {.name = "shm-pages-to-scan",
     .type = VSH_OT_INT,
     .help =  N_("number of pages to scan before the shared memory service "
                 "goes to sleep")
    },
    {.name = "shm-sleep-millisecs",
     .type = VSH_OT_INT,
     .help =  N_("number of millisecs the shared memory service should "
                 "sleep before next scan")
    },
    {.name = "shm-merge-across-nodes",
     .type = VSH_OT_INT,
     .help =  N_("Specifies if pages from different numa nodes can be merged")
    },
    {.name = NULL}
851 852 853 854 855 856 857
};

static bool
cmdNodeMemoryTune(vshControl *ctl, const vshCmd *cmd)
{
    virTypedParameterPtr params = NULL;
    int nparams = 0;
858
    int maxparams = 0;
859
    unsigned int flags = 0;
860
    unsigned int value;
861
    bool ret = false;
862
    int rc = -1;
863
    size_t i;
864

865
    if ((rc = vshCommandOptUInt(cmd, "shm-pages-to-scan", &value)) < 0) {
866
        vshError(ctl, "%s", _("invalid shm-pages-to-scan number"));
867
        goto cleanup;
868
    } else if (rc > 0) {
869 870 871 872
        if (virTypedParamsAddUInt(&params, &nparams, &maxparams,
                                  VIR_NODE_MEMORY_SHARED_PAGES_TO_SCAN,
                                  value) < 0)
            goto save_error;
873 874
    }

875
    if ((rc = vshCommandOptUInt(cmd, "shm-sleep-millisecs", &value)) < 0) {
876
        vshError(ctl, "%s", _("invalid shm-sleep-millisecs number"));
877
        goto cleanup;
878
    } else if (rc > 0) {
879 880 881 882
        if (virTypedParamsAddUInt(&params, &nparams, &maxparams,
                                  VIR_NODE_MEMORY_SHARED_SLEEP_MILLISECS,
                                  value) < 0)
            goto save_error;
883 884
    }

885
    if ((rc = vshCommandOptUInt(cmd, "shm-merge-across-nodes", &value)) < 0) {
886
        vshError(ctl, "%s", _("invalid shm-merge-across-nodes number"));
887
        goto cleanup;
888
    } else if (rc > 0) {
889 890 891 892
        if (virTypedParamsAddUInt(&params, &nparams, &maxparams,
                                  VIR_NODE_MEMORY_SHARED_MERGE_ACROSS_NODES,
                                  value) < 0)
            goto save_error;
893
    }
894

895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928
    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);
        }
    } else {
        if (virNodeSetMemoryParameters(ctl->conn, params, nparams, flags) != 0)
            goto error;
    }

929 930
    ret = true;

931
cleanup:
932
    virTypedParamsFree(params, nparams);
933 934
    return ret;

935 936
save_error:
    vshSaveLibvirtError();
937 938 939 940 941
error:
    vshError(ctl, "%s", _("Unable to change memory parameters"));
    goto cleanup;
}

E
Eric Blake 已提交
942
const vshCmdDef hostAndHypervisorCmds[] = {
943 944 945 946 947 948
    {.name = "capabilities",
     .handler = cmdCapabilities,
     .opts = NULL,
     .info = info_capabilities,
     .flags = 0
    },
949 950 951 952 953 954
    {.name = "cpu-models",
     .handler = cmdCPUModelNames,
     .opts = opts_cpu_models,
     .info = info_cpu_models,
     .flags = 0
    },
955 956 957 958 959 960 961 962 963 964 965 966
    {.name = "freecell",
     .handler = cmdFreecell,
     .opts = opts_freecell,
     .info = info_freecell,
     .flags = 0
    },
    {.name = "hostname",
     .handler = cmdHostname,
     .opts = NULL,
     .info = info_hostname,
     .flags = 0
    },
967 968 969 970 971 972
    {.name = "maxvcpus",
     .handler = cmdMaxvcpus,
     .opts = opts_maxvcpus,
     .info = info_maxvcpus,
     .flags = 0
    },
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    {.name = "node-memory-tune",
     .handler = cmdNodeMemoryTune,
     .opts = opts_node_memory_tune,
     .info = info_node_memory_tune,
     .flags = 0
    },
    {.name = "nodecpumap",
     .handler = cmdNodeCpuMap,
     .opts = NULL,
     .info = info_node_cpumap,
     .flags = 0
    },
    {.name = "nodecpustats",
     .handler = cmdNodeCpuStats,
     .opts = opts_node_cpustats,
     .info = info_nodecpustats,
     .flags = 0
    },
    {.name = "nodeinfo",
     .handler = cmdNodeinfo,
     .opts = NULL,
     .info = info_nodeinfo,
     .flags = 0
    },
    {.name = "nodememstats",
     .handler = cmdNodeMemStats,
     .opts = opts_node_memstats,
     .info = info_nodememstats,
     .flags = 0
    },
    {.name = "nodesuspend",
     .handler = cmdNodeSuspend,
     .opts = opts_node_suspend,
     .info = info_nodesuspend,
     .flags = 0
    },
    {.name = "sysinfo",
     .handler = cmdSysinfo,
     .opts = NULL,
     .info = info_sysinfo,
     .flags = 0
    },
    {.name = "uri",
     .handler = cmdURI,
     .opts = NULL,
     .info = info_uri,
     .flags = 0
    },
    {.name = "version",
     .handler = cmdVersion,
     .opts = opts_version,
     .info = info_version,
     .flags = 0
    },
    {.name = NULL}
1028
};