Re: [PATCH v2 1/2] KVM: x86: Use vector-hashing to deliver lowest-priority interrupts

From: Paolo Bonzini
Date: Mon Jan 18 2016 - 05:42:27 EST

On 18/01/2016 06:19, Wu, Feng wrote:
> However,
> this will make the vector-hashing lowest-priority handling slightly different
> compare to round-robin, since RR checks "!dst[i]" before injecting the
> interrupts. What is your opinion about it? Thanks a lot!

I think Radim's suggestion is fine. You can print an error (just once
per guest) to dmesg if the result of the hashing computation corresponds
to a disabled APIC.