On Mon, May 18, 2009 at 02:40:18PM +0300, Gleb Natapov wrote: > 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. as I said, there are unisys machines that implements cpu hotplug. The way they do it, is the way Linux kernel currently expects. The same way we implement on our BIOS.
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