Re: [libvirt] [PATCH v2] qemu: Reject unsupported tuning in session mode

When domain is started with setting that cannot be done, i.e. those that require cgroups, there is no error reported and it succeeds without any message whatsoever. When setting with API, virsh, an error is reported, but only due to the fact that no cgroups are mounted (priv->cgroup == NULL). Given the above it seems reasonable to reject such unsupported settings. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1023366 Signed-off-by: Martin Kletzander <mkletzan(a)redhat.com&gt; --- @@ -7443,6 +7445,13 @@ static char *qemuDomainGetSchedulerType(virDomainPtr dom, if (virDomainGetSchedulerTypeEnsureACL(dom->conn, vm->def) < 0) goto cleanup; + cfg = virQEMUDriverGetConfig(driver); + if (!cfg->privileged) { + virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s", + _("CPU tuning is not available in session mode")); + goto cleanup; + } + /* Domain not running, thus no cgroups - return defaults */ if (!virDomainObjIsActive(vm)) {