lkml.org 
[lkml]   [2018]   [Jul]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 39/39] x86/entry/32: Add debug code to check entry/exit cr3
On Fri, Jul 13, 2018 at 10:28:50AM -0700, Andy Lutomirski wrote:
> On Wed, Jul 11, 2018 at 4:29 AM, Joerg Roedel <joro@8bytes.org> wrote:
> > From: Joerg Roedel <jroedel@suse.de>
> >
> > Add a config option that enabled code to check that we enter
> > and leave the kernel with the correct cr3. This is needed
> > because we have no NX protection of user-addresses in the
> > kernel-cr3 on x86-32 and wouldn't notice that type of bug
> > otherwise.
> >
>
> I like this, but could you make it just use CONFIG_DEBUG_ENTRY?

Makes sense, I'll change it.


Regards,

Joerg
\
 
 \ /
  Last update: 2018-07-15 22:07    [W:0.050 / U:24.848 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site