From 635e6357f948d57bc98af8d37eb81896333822e9 Mon Sep 17 00:00:00 2001 From: Sean Christopherson Date: Wed, 8 Dec 2021 01:52:30 +0000 Subject: [PATCH] KVM: VMX: Don't do full kick when handling posted interrupt wakeup 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 needs to get the vCPU task running, and if it's in the guest then it's definitely running. Signed-off-by: Sean Christopherson Reviewed-by: Maxim Levitsky Message-Id: <20211208015236.1616697-21-seanjc@google.com> Signed-off-by: Paolo Bonzini --- arch/x86/kvm/vmx/posted_intr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kvm/vmx/posted_intr.c b/arch/x86/kvm/vmx/posted_intr.c index 901eea44cf24b..aa1fe9085d779 100644 --- a/arch/x86/kvm/vmx/posted_intr.c +++ b/arch/x86/kvm/vmx/posted_intr.c @@ -209,7 +209,7 @@ void pi_wakeup_handler(void) pi_wakeup_list) { if (pi_test_on(&vmx->pi_desc)) - kvm_vcpu_kick(&vmx->vcpu); + kvm_vcpu_wake_up(&vmx->vcpu); } raw_spin_unlock(&per_cpu(wakeup_vcpus_on_cpu_lock, cpu)); } -- 2.30.2