Re: [PATCH v2 03/10] x86: Add a type field to alt_instr

From: Borislav Petkov
Date: Thu Jan 18 2018 - 06:32:11 EST


On Tue, Jan 16, 2018 at 03:28:28PM +0100, Peter Zijlstra wrote:
> Add a type field to the alternative description. For now this will be
> used to annotate static_cpu_has() but possible future uses include
> using it to implement alternative alignment and special NOP handling.
>
> Suggested-by: Borislav Petkov <bp@xxxxxxxxx>
> Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
> ---
> arch/x86/include/asm/alternative-asm.h | 3 ++-
> arch/x86/include/asm/alternative.h | 6 +++++-

There's a

DPRINTK("feat: %d*32+%d, old: (%p, len: %d), repl: (%p, len: %d), pad: %d",

in arch/x86/kernel/alternative.c which dumps the whole alt_instr struct
for debugging. Please add the type there too.

With that and Josh's suggestion added:

Reviewed-by: Borislav Petkov <bp@xxxxxxx>

--
Regards/Gruss,
Boris.

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