linux-kernel - Re: [patch 00/26] x64, x2apic/intr-remap: Interrupt-remapping and x2apic support

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Message-ID: <m1prpj1lkr.fsf@frodo.ebiederm.org>
Date:	Sat, 12 Jul 2008 02:46:44 -0700
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	"Yinghai Lu" <yhlu.kernel@...il.com>
Cc:	"Suresh Siddha" <suresh.b.siddha@...el.com>,
	"Ingo Molnar" <mingo@...e.hu>, "hpa@...or.com" <hpa@...or.com>,
	"tglx@...utronix.de" <tglx@...utronix.de>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	"arjan@...ux.intel.com" <arjan@...ux.intel.com>,
	"andi@...stfloor.org" <andi@...stfloor.org>,
	"jbarnes@...tuousgeek.org" <jbarnes@...tuousgeek.org>,
	"steiner@....com" <steiner@....com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"jeremy@...p.org" <jeremy@...p.org>
Subject: Re: [patch 00/26] x64, x2apic/intr-remap: Interrupt-remapping and x2apic support

"Yinghai Lu" <yhlu.kernel@...il.com> writes:

>> So in practice if you have 2 sockets you have a cluster id of 1.
>> Which means physical apic ids over 16 and logical apicids over 65536.
> is it like
> 0x0001, 0x0002, 0x0004, 0x0008, ...., 0x8000 in one cluster? so every
> cluster only have 16

Yes.  At least that is how I read the x2apic documentation.  

Eric

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