Re: [PATCH v2 43/43] KVM: VMX: Don't do full kick when handling posted interrupt wakeup

From: Paolo Bonzini
Date: Mon Oct 25 2021 - 10:16:40 EST


On 09/10/21 04:12, Sean Christopherson wrote:
When waking vCPUs in the posted interrupt wakeup handling, do exactly
that and no more. There is no need to kick the vCPU as the wakeup
handler just need to get the vCPU task running, and if it's in the guest
then it's definitely running.

And more important, the transition from blocking to running will have gone through sync_pir_to_irr, thus checking ON and manually moving the vector from PIR to RVI.

Paolo