lkml.org 
[lkml]   [2008]   [Jul]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 1/3] x86_64: further cleanup of 32-bit compat syscall mechanisms
Jeremy Fitzhardinge wrote:
> AMD only supports "syscall" from 32-bit compat usermode.
> Intel and Centaur(?) only support "sysenter" from 32-bit compat usermode.
>
> Set the X86 feature bits accordingly, and set up the vdso in
> accordance with those bits. On the offchance we run on in a 64-bit
> environment which supports neither syscall nor sysenter from 32-bit
> mode, then fall back to the int $0x80 vdso.
>
> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>

Acked-by: H. Peter Anvin <hpa@zytor.com>

-hpa



\
 
 \ /
  Last update: 2008-07-14 02:03    [W:0.105 / U:0.032 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site