Re: [PATCH 2/3] x86: Unify and fix init sp0

From: Borislav Petkov
Date: Wed Mar 11 2015 - 07:22:36 EST

On Tue, Mar 10, 2015 at 11:05:59AM -0700, Andy Lutomirski wrote:
> x86_32 and x86_64 need slightly different sp0 values, and x86_32's was
> incorrect for init. (This never mattered -- the init thread never
> runs user code, so we never used sp0 for anything.)

Damn old x86 cruft - sp0 is the stack pointer for CPL0 in the TSS. Had
to go dig that out.

> Fix it and mostly unify them.
> Signed-off-by: Andy Lutomirski <luto@xxxxxxxxxxxxxx>

Acked-by: Borislav Petkov <bp@xxxxxxx>


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