lkml.org 
[lkml]   [2005]   [Nov]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 14/21] i386 Apm is on cpu zero only
Ingo Molnar wrote:

>* Zachary Amsden <zach@vmware.com> wrote:
>
>
>
>>APM BIOS code has a protective wrapper that runs it only on CPU zero.
>>Thus, no need to set APM BIOS segments in the GDT for other CPUs.
>>
>>
>
>hm, do we want (need) to have that CPU#0 assumption forever?
>
>

Can't hurt, and APM is largely obsolete because of ACPI, so I'm only
concerned with trimming and keeping adequate protection of the kernel
from APM code while maintaining correctness. I don't have a nice set of
old machines with enough wacky APM BIOSen to validate that unpinning the
CPU is ok.

Zach
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-11-08 13:56    [W:0.050 / U:0.064 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site