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

[Paolo Bonzini]

On 19/01/2016 05:44, Wu, Feng wrote:
> > 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.
> 
> Good idea, is there already a convenient way to do this in KVM?

No, you can just use something like the definition of printk_once (in
include/linux/printk.h), but with a flag in struct kvm_arch.

Paolo