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

[Paolo Bonzini]

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