Re: [PATCH 1/2] KVM: x86: set TMR when the interrupt is accepted

[Paolo Bonzini]

On 04/08/2015 02:46, Zhang, Yang Z wrote:
> > It is a problem for split irqchip, where the EOI exit bitmap can be
> > inferred from the IOAPIC routes but the TMR cannot.  The hardware
> > behavior on the other hand can be implemented purely within the LAPIC.
> 
> So updating the TMR within LAPIC is the only solution to handle it?

It's the simplest and the one that makes most sense.  Considering that
TMR is a pretty obscure feature, it's unlikely that it will be
accelerated in the future.

Paolo
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