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

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