Re: [libvirt PATCH v2 4/8] qemu: Validate configuration for the armvtimer timer

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On Thu, 2020-02-13 at 14:28 +0100, Ján Tomko wrote:
> On Fri, Feb 07, 2020 at 03:27:04PM +0100, Andrea Bolognani wrote:
> > +++ b/src/qemu/qemu_domain.c
> > @@ -5430,6 +5430,39 @@ qemuDomainDefValidateClockTimers(const virDomainDef *def,
> >             break;
> > 
> >         case VIR_DOMAIN_TIMER_NAME_ARMVTIMER:
> 
> Missing check for present == 0.

Good catch! Assuming Drew confirms the timer can't be disabled, then
we should definitely error out for present='no'.

Do you want me to respin, or can I just squash in the diff below?


diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 29ec203413..143ddc508e 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -5441,6 +5441,12 @@ qemuDomainDefValidateClockTimers(const virDomainDef *def,
                                def->os.machine);
                 return -1;
             }
+            if (timer->present == 0) {
+                virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+                               _("The '%s' timer can't be disabled"),
+                               virDomainTimerNameTypeToString(timer->name));
+                return -1;
+            }
             if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_CPU_KVM_NO_ADJVTIME)) {
                 virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                                _("Configuring the '%s' timer is not supported "
-- 
Andrea Bolognani / Red Hat / Virtualization





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