RE: [PATCH v8 33/33] KVM: x86/vmx: refactor VMX_DO_EVENT_IRQOFF to generate FRED stack frames

[Li, Xin3]

> > external_interrupt() is always available on x86_64, even when CONFIG_X86_FRED
> > is not defined. I prefer to always call external_interrupt() on x86_64 for IRQ
> > handling, which avoids re-entering noinstr code. how do you think? Too
> > aggressive?
> 
> I think it's completely orthogonal to FRED enabling.  If you or anyone else wants
> to convert the non-FRED handling to external_interrupt(), then do so after FRED
> lands, or at the very least in a separate patch after enabling FRED in KVM.

That sounds a reasonable plan.