[libvirt] [PATCH] qemu: Allow cachetune only for KVM domains
https://bugzilla.redhat.com/show_bug.cgi?id=1541921
In TCG mode, there are no vCPU threads and thus there's nothing
to be placed into resctrl CGroup. Forbid such configuration.
Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com>
---
src/qemu/qemu_domain.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index fee44812c1..a39d9a46a0 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -3980,6 +3980,13 @@ qemuDomainDefValidate(const virDomainDef *def,
}
}
+ if (def->ncachetunes &&
+ def->virtType != VIR_DOMAIN_VIRT_KVM) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+ _("cachetune is only supported for KVM domains"));
+ goto cleanup;
+ }
+
if (qemuDomainDefValidateFeatures(def, qemuCaps) < 0)
goto cleanup;
--
2.16.4