[kvm-ppc-devel] [PATCH] Add idle wait support for 44x platforms

[Scott Wood]

On Thu, Apr 03, 2008 at 06:13:59PM -0500, Hollis Blanchard wrote:
> Stuart, we're getting into ePAPR territory. Do you think we need to worry 
> about a hypervisor not handling mtmsr(MSR_WE)? In that case, we'd need to be 
> more specific than just testing for "/hypervisor". IMHO every hypervisor 
> should implement it... but maybe /hypervisor/idle = "wait" would be more 
> explicit and therefore better?

We can't trap on MSR[WE] updates on hypervisor-enabled chips; the write
is silently ignored.

-Scott