Re: [PATCH RESEND v4 2/3] x86/apic: Introduce a variable to track the number of EILVT registers

[Naveen N Rao]

On Thu, Sep 24, 2026 at 09:26:12PM -0700, Borislav Petkov wrote:
> On Thu, Sep 24, 2026 at 05:28:48PM +0530, Naveen N Rao wrote:
> > Cause I didn't want to risk changing the current default EILVT register 
> > count for some ~2 decade old processor that may be advertising 
> > X86_FEATURE_EXTAPIC but encoding a count of zero in APIC_EFEAT.
> 
> Do you know of such a processor?

I don't.

> 
> Because Christian gave you all regs count from K8 onwards and that's what we
> support anyway. I don't care about K7 rust and older.

Sure, will change to the version you proposed.

> 
> > Right, the split reflects how I viewed the changes, and to hopefully 
> > simplify the review. Looks like I got the split wrong as it looks to 
> > have been counter-productive here.
> 
> Right, just keep it simple and do a single patch.

Will do.


Thanks,
Naveen