コード例 #1
0
ファイル: numa_conf.c プロジェクト: candhare/libvirt
int
virDomainNumatuneParseXML(virDomainNumaPtr numa,
                          bool placement_static,
                          xmlXPathContextPtr ctxt)
{
    char *tmp = NULL;
    int mode = -1;
    int n = 0;
    int placement = -1;
    int ret = -1;
    virBitmapPtr nodeset = NULL;
    xmlNodePtr node = NULL;

    if (virXPathInt("count(./numatune)", ctxt, &n) < 0) {
        virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                       _("cannot extract numatune nodes"));
        goto cleanup;
    } else if (n > 1) {
        virReportError(VIR_ERR_XML_ERROR, "%s",
                       _("only one numatune is supported"));
        goto cleanup;
    }

    node = virXPathNode("./numatune/memory[1]", ctxt);

    if (!placement_static && !node)
        placement = VIR_DOMAIN_NUMATUNE_PLACEMENT_AUTO;

    if (node) {
        if ((tmp = virXMLPropString(node, "mode")) &&
            (mode = virDomainNumatuneMemModeTypeFromString(tmp)) < 0) {
            virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                           _("Unsupported NUMA memory tuning mode '%s'"), tmp);
            goto cleanup;
        }
        VIR_FREE(tmp);

        if ((tmp = virXMLPropString(node, "placement")) &&
            (placement = virDomainNumatunePlacementTypeFromString(tmp)) < 0) {
            virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                           _("Unsupported NUMA memory placement mode '%s'"), tmp);
            goto cleanup;
        }
        VIR_FREE(tmp);

        tmp = virXMLPropString(node, "nodeset");
        if (tmp) {
            if (virBitmapParse(tmp, 0, &nodeset, VIR_DOMAIN_CPUMASK_LEN) < 0)
                goto cleanup;

            if (virBitmapIsAllClear(nodeset)) {
                virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                               _("Invalid value of 'nodeset': %s"), tmp);
                goto cleanup;
            }

            VIR_FREE(tmp);
        }
    }

    if (virDomainNumatuneSet(numa,
                             placement_static,
                             placement,
                             mode,
                             nodeset) < 0)
        goto cleanup;

    if (virDomainNumatuneNodeParseXML(numa, ctxt) < 0)
        goto cleanup;

    ret = 0;
 cleanup:
    virBitmapFree(nodeset);
    VIR_FREE(tmp);
    return ret;
}
コード例 #2
0
int
virDomainNumatuneParseXML(virDomainNumatunePtr *numatunePtr,
                          bool placement_static,
                          size_t ncells,
                          xmlXPathContextPtr ctxt)
{
    char *tmp = NULL;
    int mode = -1;
    int n = 0;
    int placement = -1;
    int ret = -1;
    virBitmapPtr nodeset = NULL;
    xmlNodePtr node = NULL;

    if (virXPathInt("count(./numatune)", ctxt, &n) < 0) {
        virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                       _("cannot extract numatune nodes"));
        goto cleanup;
    } else if (n > 1) {
        virReportError(VIR_ERR_XML_ERROR, "%s",
                       _("only one numatune is supported"));
        goto cleanup;
    }

    node = virXPathNode("./numatune/memory[1]", ctxt);

    if (*numatunePtr) {
        virDomainNumatuneFree(*numatunePtr);
        *numatunePtr = NULL;
    }

    if (!node && placement_static) {
        if (virDomainNumatuneNodeParseXML(numatunePtr, ncells, ctxt) < 0)
            goto cleanup;
        return 0;
    }

    if (!node) {
        /* We know that placement_mode is "auto" if we're here */
        ret = virDomainNumatuneSet(numatunePtr,
                                   placement_static,
                                   VIR_DOMAIN_NUMATUNE_PLACEMENT_AUTO,
                                   -1,
                                   NULL);
        goto cleanup;
    }

    tmp = virXMLPropString(node, "mode");
    if (tmp) {
        mode = virDomainNumatuneMemModeTypeFromString(tmp);
        if (mode < 0) {
            virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                           _("Unsupported NUMA memory tuning mode '%s'"),
                           tmp);
            goto cleanup;
        }
    }
    VIR_FREE(tmp);

    tmp = virXMLPropString(node, "placement");
    if (tmp) {
        placement = virDomainNumatunePlacementTypeFromString(tmp);
        if (placement < 0) {
            virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                           _("Unsupported NUMA memory placement mode '%s'"),
                           tmp);
            goto cleanup;
        }
    }
    VIR_FREE(tmp);

    tmp = virXMLPropString(node, "nodeset");
    if (tmp && virBitmapParse(tmp, 0, &nodeset, VIR_DOMAIN_CPUMASK_LEN) < 0)
        goto cleanup;
    VIR_FREE(tmp);

    if (virDomainNumatuneSet(numatunePtr,
                             placement_static,
                             placement,
                             mode,
                             nodeset) < 0)
        goto cleanup;

    if (virDomainNumatuneNodeParseXML(numatunePtr, ncells, ctxt) < 0)
        goto cleanup;

    ret = 0;
 cleanup:
    virBitmapFree(nodeset);
    VIR_FREE(tmp);
    return ret;
}