lkml.org 
[lkml]   [2017]   [Oct]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 09/18] x86/asm/64: De-Xen-ify our NMI code
On Thu, Oct 26, 2017 at 01:26:41AM -0700, Andy Lutomirski wrote:
> Xen PV is fundamentally incompatible with our fancy NMI code: it
> doesn't use IST at all, and Xen entries clobber two stack slots
> below the hardware frame.
>
> Drop Xen PV support from our NMI code entirely.
>
> Cc: Juergen Gross <jgross@suse.com>
> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
> Signed-off-by: Andy Lutomirski <luto@kernel.org>
> ---
> arch/x86/entry/entry_64.S | 30 ++++++++++++++++++------------
> 1 file changed, 18 insertions(+), 12 deletions(-)

Reviewed-by: Borislav Petkov <bp@suse.de>

--
Regards/Gruss,
Boris.

SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
--

\
 
 \ /
  Last update: 2017-10-28 20:20    [W:0.236 / U:4.200 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site