Re: [PATCH] Set bit 1 in disabled processor's _STA

Gleb Natapov
2009-05-18T11:40:19Z

On Mon, May 18, 2009 at 08:39:43AM -0300, Glauber Costa wrote:
> > Now I recall something on LKML about this. Well, in this case Linux
> > shouldn't have used ACPI to invent its own way to do cpu hot-plug.
> It didn't.
> History shows that this method is what is used in some unisys machines,
> which seems to be the only ones implementing this around.
The questions are: What is "this" that linux currently implements, how
windows expects CPU hot-plug to work, are there any real x86 hardware
that supports CPU host-plug and what should we do about all this.

--
Gleb.