On Fri, May 30, 2014 at 09:34:39AM +0200, Peter Zijlstra wrote:
> On Thu, May 29, 2014 at 06:12:06PM -0700, Andi Kleen wrote:
>
> > Note: in very rare cases with exotic events this may lead to spurious PMIs
> > in the guest.
>
> Qualify that statement so that if someone runs into it we at least k
On Thu, May 29, 2014 at 06:12:06PM -0700, Andi Kleen wrote:
> Note: in very rare cases with exotic events this may lead to spurious PMIs
> in the guest.
Qualify that statement so that if someone runs into it we at least know
it is known/expected.
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From: Andi Kleen
With PEBS virtualization the PEBS record gets delivered to the guest,
but the host sees the PMI. This would normally result in a spurious
PEBS PMI that is ignored. But we need to inject the PMI into the guest,
so that the guest PMI handler can handle the PEBS record.
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