[lkml]   [2008]   [Aug]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [patch 3/5] [PATCH 3/5] x86: Run Intel ucode-updates via workqueue.
On Wed, 06 Aug 2008 13:31:18 -0700
Max Krasnyansky <> wrote:

> Arjan van de Ven wrote:
> > On Wed, 6 Aug 2008 17:21:20 +0200
> > Peter Oruba <> wrote:
> >
> > [ no description or reason ]
> >
> > Why is this?
> >
> > I'm not very happy about this.. it means practically that this stuff
> > *has* to run late. Probably later than we want to.
> > (Like.. we may want to redo the microcode during resume.. which is
> > not a schedulable context)
> Dmitry and I tried to figure out how soon does it need to run.

you're not going to like the answer, but it's "as soon as possible".
Unlike normal boot, hotplug is a case where the bios hasn't been able
to put a normal microcode in.

> Nobody had a strong argument why it must run synchronously in the
> hotplug path.

Ok we as Intel really want it as early as possible.

> Sure we want it as soon as possible and I'd say
> workqueue is soon enough.
> Existing hotplug path does not guaranty any ordering and original
> microcode interface was driven from user-space. So clearly it was not
> considered very critical.

well that's why it changed to no longer use the userspace driven thing..

> Max

If you want to reach me at my work email, use
For development, discussion and tips for power savings,

 \ /
  Last update: 2008-08-06 22:49    [W:0.061 / U:0.056 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site