Re: [PATCH v5 30/75] x86/head/64: Setup MSR_GS_BASE before calling into C code

[Kees Cook <keescook@xxxxxxxxxxxx>]

On Fri, Jul 24, 2020 at 06:02:51PM +0200, Joerg Roedel wrote:
> From: Joerg Roedel <jroedel@xxxxxxx>
> 
> When stack-protector is enabled a valid GS_BASE is needed before
> calling any C code function, because the stack canary is loaded from
> per-cpu data.
> 
> Signed-off-by: Joerg Roedel <jroedel@xxxxxxx>

Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>

-- 
Kees Cook