lkml.org 
[lkml]   [2001]   [Feb]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH] Hot swap CPU support for 2.4.1

> Rusty, what would be needed to "hot-add" CPUs ?

The PPC version at the moment simply locks a cpu in the idle loop
with __cli(); while(1); for cpu down and jumps out of it for cpu up.
Good for testing but not very useful. After talking to paulus we
will use the RTAS cpu stop and cpu start.

In order to bring a new cpu up you will need to duplicate a lot of
the stuff in smp_boot_cpus or else just set up all NR_CPUS of these
structures (eg NR_CPUS idle threads etc) at boot time.

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

\
 
 \ /
  Last update: 2005-03-22 12:55    [W:0.103 / U:2.436 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site