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Re: [libvirt] [PATCH 13/14] Add suspend info to Xen, LXC and UML hypervisor capabilities

On 11/29/2011 08:44 AM, Daniel P. Berrange wrote:
> From: "Daniel P. Berrange" <berrange redhat com>
> * src/lxc/lxc_conf.c, src/uml/uml_conf.c,
>   src/xen/xen_hypervisor.c: Initialize suspend capabilities
> * tests/xencapsdata/*xml: Add empty powermgmt capabilities

Do we need to fake anything in the tests directory to ensure that the
tests never probe the system, but always treat things as no power
management available?  I'm worried that running the testsuite as root on
a Dom0 host might cause spurious test failures, although I have not yet
tested that.  I guess we can deal with the fallout later if it turns out
to be a problem in practice.

> @@ -71,6 +73,9 @@ virCapsPtr lxcCapsInit(void)
>          VIR_WARN("Failed to query host NUMA topology, disabling NUMA capabilities");
>      }
> +    if (virNodeSuspendGetTargetMask(&caps->host.powerMgmt) < 0)
> +        VIR_WARN("Failed to get host power management capabilities");
> +

For qemu, you skipped the warning for qemu:///session (ie. geteuid() was
non-zero).  Should we do the same for lxc and uml, or are these
hypervisors only ever useful as root?

Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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