On Thu, Jun 19, 2014 at 10:52:52AM -0700, Andi Kleen wrote: > Andi Kleen <andi@xxxxxxxxxxxxxx> writes: > >> > >>> Signed-off-by: Kan Liang <kan.liang@xxxxxxxxx> > >> > >> And here I thought that Andi was of the opinion that if you set CPUID to > >> indicate a particular CPU you had better also handle all its MSRs. > > > > Yes, philosophically that would be the right way, > > but we needed a short term fix to stop things from crashing, and that > > was the simplest. > > I should add there is another reason for this patch now, > and doing it in perf instead of somewhere else > (this should probably go into the description). > > With PT on enabling LBR can #GP. So perf needs to handle > this case without crashing. This can happen independently > of any hypervisors. WTH is a PT? -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
