Re: [PART1 RFC v2 06/10] svm: Add interrupt injection via AVIC

[Suravee Suthikulpanit]

On 03/07/2016 10:36 PM, Paolo Bonzini wrote:


On 04/03/2016 21:46, Suravee Suthikulpanit wrote:
+static void svm_deliver_avic_intr(struct kvm_vcpu *vcpu, int vec)
+{
+       struct vcpu_svm *svm = to_svm(vcpu);
+
+       kvm_lapic_set_vector(vec, avic_get_bk_page_entry(svm, APIC_IRR));
+
+       if (vcpu->mode == IN_GUEST_MODE) {
+               wrmsrl(SVM_AVIC_DOORBELL,
+                      __default_cpu_present_to_apicid(vcpu->cpu));
+       } else {
+               kvm_vcpu_kick(vcpu);
+       }

You also need to add

        kvm_make_request(KVM_REQ_EVENT, vcpu);

before the "if", similar to vmx_deliver_posted_interrupt.

Paolo


Actually, I should only need that just before the kvm_cpu_kick(vcpu) 
isn't it. I don't think we need it in the case when sending doorbell.

Thanks,
Suravee