Re: [PATCH v7 1/9] x86/KASLR: Initialize mapping_info every time

From: Ingo Molnar
Date: Tue May 10 2016 - 01:59:05 EST



* Yinghai Lu <yinghai@xxxxxxxxxx> wrote:

> On Mon, May 9, 2016 at 3:23 PM, Kees Cook <keescook@xxxxxxxxxxxx> wrote:
> >> The exact reason to have assigning in functions.
> >>
> >> pgt_data address could be changed during kernel relocation.
> >> so can not assigned during compiling time.
> >
> > Ah-ha, that explains why I had to keep it on the stack. Thanks for the
> > clarification!
>
> My fault, I should put that comment in the code at first place.

Ok, could you guys please update the code and the changelog as well, and also
rename that horribly named prepare_level4() function?

Also, since this code is multi-author, it would be nice to add explicit copyright
notices to the new arch/x86/boot/compressed/pagetable.c file, it was originally
written by you, then modified by Kees. Something like:

/*
* Copyright (C) 2015-2016 Yinghai Lu
* Copyright (C) 2016 Kees Cook
*/

Thanks,

Ingo