Re: [RFC][PATCH 3/3] x86: make MP a required-feature on 64-bit

[Borislav Petkov]

On Fri, Jun 20, 2014 at 10:47:22AM -0700, H. Peter Anvin wrote:
> This is run before static_cpu_has().

static_cpu_has_safe() then - I didn't do it for no reason :-)

> The point, though, was that we "enforce" (taint) on 32 bits but not on
> 64 bits, which is clearly wrong.

Yeah, K7 is 32-bit only.

> My inclination is to completely kill amd_k7_smp_check() entirely,
> since noone seems to know when it actually matters and it is clearly
> historic.

I think DaveJ should know something about it - he gave that impression
last time when we were discussing 8c90487cdc64 ("Rename TAINT_UNSAFE_SMP
to TAINT_CPU_OUT_OF_SPEC").

CCed.

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
--
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/