Re: [libvirt] [PATCH v2] virsh: use virConnectGetDomainCapabilities with maxvcpus

virsh maxvcpus --type kvm output is useless on PPC. Also, in commit e6806d79 we documented not rely on virConnectGetMaxVcpus output. Fix the maxvcpus to use virConnectGetDomainCapabilities now to make it useful. The call is made to use the default emulator binary and to check for the host machine and arch which is what the command intends to show anyway. Signed-off-by: Shivaprasad G Bhat <sbhat(a)linux.vnet.ibm.com&gt; --- tools/virsh-host.c | 26 ++++++++++++++++++++++++-- 1 file changed, 24 insertions(+), 2 deletions(-) diff --git a/tools/virsh-host.c b/tools/virsh-host.c index 57f0c0e..dd6ff4e 100644 --- a/tools/virsh-host.c +++ b/tools/virsh-host.c @@ -606,15 +606,37 @@ static bool cmdMaxvcpus(vshControl *ctl, const vshCmd *cmd) { const char *type = NULL; - int vcpus; + int vcpus = -1; + char *caps = NULL; + const unsigned int flags = 0; /* No flags so far */ + xmlDocPtr xml = NULL; + xmlXPathContextPtr ctxt = NULL; virshControlPtr priv = ctl->privData; if (vshCommandOptStringReq(ctl, cmd, "type", &type) < 0) return false; + caps = virConnectGetDomainCapabilities(priv->conn, NULL, NULL, NULL, type, flags); + if (!caps)

+ goto fallback; + + xml = virXMLParseStringCtxt(caps, _("(domainCapabilities)"), &ctxt); + if (!xml) { + VIR_FREE(caps); + goto fallback; + } + + virXPathInt("string(./vcpu[1]/@max)", ctxt, &vcpus); + + xmlXPathFreeContext(ctxt); + xmlFreeDoc(xml); + if (vcpus > 0) + goto exit; + + fallback: if ((vcpus = virConnectGetMaxVcpus(priv->conn, type)) < 0) return false; - + exit: vshPrint(ctl, "%d\n", vcpus); return true; -- libvir-list mailing list libvir-list(a)redhat.com https://www.redhat.com/mailman/listinfo/libvir-list