Re: [PATCH v3 08/11] x86/mm: Disable PCID on 32-bit kernels

[Borislav Petkov]

On Tue, Jun 20, 2017 at 10:22:14PM -0700, Andy Lutomirski wrote:
> 32-bit kernels on new hardware will see PCID in CPUID, but PCID can
> only be used in 64-bit mode.  Rather than making all PCID code
> conditional, just disable the feature on 32-bit builds.
> 
> Signed-off-by: Andy Lutomirski <luto@xxxxxxxxxx>
> ---
>  arch/x86/include/asm/disabled-features.h | 4 +++-
>  arch/x86/kernel/cpu/bugs.c               | 8 ++++++++
>  2 files changed, 11 insertions(+), 1 deletion(-)

Reviewed-by: Borislav Petkov <bp@xxxxxxx>

-- 
Regards/Gruss,
    Boris.

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