lkml.org 
[lkml]   [2016]   [Nov]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 0/4] x86: enable User-Mode Instruction Prevention
On Mon, Nov 07, 2016 at 10:12:09PM -0800, Ricardo Neri wrote:
> There is a caveat, however. Certain applications running in virtual-8086
> mode, such as DOSEMU[1] and Wine[2], want to utilize the SGDT, SIDT and
> SLDT instructions for legitimate reasons. In order to keep such
> applications working, UMIP must be disabled/enabled when entering/exiting
> virtual-8086 mode.

Would it not be better to emulate these instructions for them? What way
we can verify they're not malicious.

\
 
 \ /
  Last update: 2016-11-08 14:16    [W:0.411 / U:0.048 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site