On 20/07/2018 05:53, Wanpeng Li wrote:
>>> - ret = kvm_hypercall3(KVM_HC_SEND_IPI, ipi_bitmap_low,
>>> ipi_bitmap_high, vector);
>>> + switch (vector) {
>>> + default:
>>> + icr = APIC_DM_FIXED | vector;
>>> + break;
>>> + case NMI_VECTOR:
>>> + icr = APIC_DM_NMI;
>> I think it would be better to say that KVM interprets NMI_VECTOR and
>> sends the interrupt as APIC_DM_NMI.
It's not KVM, this is arch/x86/kernel/kvm.c so the guest side.
Paolo
> Yeah, in addition, SDM 10.6.1 also mentioned that:
> Delivery mode:
> 100 (NMI) Delivers an NMI interrupt to the target processor or
> processors. The vector information is ignored.