Re: [ACPI] Re: [RFC 0/6] S3 SMP support with physcial CPU hotplug

Nigel Cunningham
2005-04-04T09:52:37Z

Hi.

On Mon, 2005-04-04 at 12:37, Andrew Morton wrote:
> Li Shaohua <shaohua.li@intel.com> wrote:
> >
> > The patches are against 2.6.11-rc1 with Zwane's CPU hotplug patch in -mm
> > tree.
>
> Should I merge that thing into mainline? It seems that a few people are
> needing it.

Perhaps we should address the MTRR issue first.

I've had code in Suspend2 for quite a while (6 months+) that removes the
sysdev support for MTRRs and saves and restores them with CPU context,
thereby avoiding the smp_call-while-interrupts-disabled issue. Perhaps
it would be helpful here?

Nigel
--
Nigel Cunningham
Software Engineer, Canberra, Australia
http://www.cyclades.com
Bus: +61 (2) 6291 9554; Hme: +61 (2) 6292 8028; Mob: +61 (417) 100 574

Maintainer of Suspend2 Kernel Patches http://suspend2.net