Re: [PATCH] x86, AMD: Correct F15h IC aliasing issue

[Ingo Molnar <mingo@elte.hu>]

* Borislav Petkov <bp@amd64.org> wrote:

> > > diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
> > > index b13ed39..2d380c6 100644
> > > --- a/arch/x86/kernel/cpu/amd.c
> > > +++ b/arch/x86/kernel/cpu/amd.c
> > > @@ -458,6 +458,13 @@ static void __cpuinit early_init_amd(struct cpuinfo_x86 *c)
> > >  					"with P0 frequency!\n");
> > >  		}
> > >  	}
> > > +
> > > +	if (unalias_va_addr == -1) {
> > > +		if (c->x86 == 0x15)
> > > +			unalias_va_addr = UNALIAS_VA_32 | UNALIAS_VA_64;
> > > +		else
> > > +			unalias_va_addr = 0;
> > 
> > the placement here feels a bit wrong - don't we have run-once CPU 
> > quirks?
> 
> Maybe another func ptr in struct x86_cpuinit_ops
> (arch/x86/kernel/x86_init.c) would be a better place?

Yeah.

Assuming no objections come i'd suggest to do that as an add-on patch 
- so the first patch can be backported, the second patch cleans up 
the x86_cpuinit_ops aspect.

Thanks,

	Ingo