Re: [PATCH v9 02/29] x86/boot: Relocate definition of the initial state of CR0

From: Andy Lutomirski
Date: Thu Oct 26 2017 - 05:02:32 EST


On Thu, Oct 26, 2017 at 2:00 AM, Borislav Petkov <bp@xxxxxxx> wrote:
> On Thu, Oct 26, 2017 at 12:51:25AM -0700, Andy Lutomirski wrote:
>> with the slight caveat that I think it might be a wee bit better if
>> UMIP emulation used a separate define UMIP_REPORTED_CR0.
>
> Why, do you see CR0_STATE and UMIP_REPORTED_CR0 becoming different at
> some point?

I'm assuming that UMIP_REPORTED_CR0 will never change. If CR0 gets a
new field that we set some day, then I assume that CR0_STATE would add
that bit but UMIP_REPORTED_CR0 would not.

>
> --
> Regards/Gruss,
> Boris.
>
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