On 23/04/20 11:35, Wanpeng Li wrote: >> Ok, got it now. The problem is that deliver_posted_interrupt goes through >> >> if (!kvm_vcpu_trigger_posted_interrupt(vcpu, false)) >> kvm_vcpu_kick(vcpu); >> >> Would it help to make the above >> >> if (vcpu != kvm_get_running_vcpu() && >> !kvm_vcpu_trigger_posted_interrupt(vcpu, false)) >> kvm_vcpu_kick(vcpu); >> >> ? If that is enough for the APICv case, it's good enough. > We will not exit from vmx_vcpu_run to vcpu_enter_guest, so it will not > help, right? Oh indeed---the call to sync_pir_to_irr is in vcpu_enter_guest. You can add it to patch 3 right before "goto cont_run", since AMD does not need it. Paolo
