On Thu, Dec 8, 2016 at 12:05 PM, Borislav Petkov <bp@xxxxxxxxx> wrote:
>
> The cpuid() in cpuflags.c doesn't zero ecx which, if we have to be
> pedantic, it should do. It calls CPUID now with the ptr value of its 4th
> on 64-bit and 3rd arg on 32-bit, respectively, IINM.
In fact, just do a single cpuid_count(), and then implement the
traditional cpuid() as just
#define cpuid(x, a,b,c,d) cpuid_count(x, 0, a, b, c, d)
or something.
Especially since that's some of the ugliest inline asm ever due to the
nasty BX handling.
Linus
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