Re: [PATCH] x86/microcode: Fix crashes on early 486 CPUs due to usage of 'cpuid'.

From: Maciej W. Rozycki
Date: Tue Apr 08 2025 - 06:24:24 EST


On Sun, 6 Apr 2025, Borislav Petkov wrote:

> > But if I move "cpuid_1_eax = native_cpuid_eax(1);" to after the
> > microcode_loader_disabled() check in amd.c, like in the first patch, it
> > boots fine!
>
> Yeah, I noticed that too last night. Here's a hopefully better version after
> I ran it on my 32-bit Atom - I don't have your old rust and maybe you should
> simply throw it in the garbage - that thing is probably not worth the
> electricity it uses to power up... :-)

C'mon, these are good room heaters with nice extra side effects. ;)

Maciej