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Re: [RFC PATCH 0/2] KVM: x86: guest exit microoptimization

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  Re: [RFC PATCH 0/2] KVM: x86: guest exit microoptimization Paolo Bonzini <pbonzini@redhat.com> - 2016-07-01 18:50 +0200

#1435496 — Re: [RFC PATCH 0/2] KVM: x86: guest exit microoptimization

On 16/06/2016 10:21, Paolo Bonzini wrote:
> This saves about 20 clock cycles per vmexit by avoiding a
> local_irq_save/restore pair.  The price is that nested VMX will break
> with KVM hosts < 3.16, because the "acknowledge interrupt on exit"
> feature becomes mandatory.  What do you think?

I'm pushing these patches.

Paolo

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