From: "Jim Hull" <jim.hull@hp.com>
To: linux-ia64@vger.kernel.org
Subject: RE: cr.gpta register
Date: Fri, 30 Apr 2004 17:36:32 +0000 [thread overview]
Message-ID: <01b101c42ed9$ada1f5b0$f463f40f@jh733133> (raw)
In-Reply-To: <20040426123437.GA6567@cse.unsw.EDU.AU>
GPTA (CR9) exists solely to support the IA-32 System Environment (see
PAL_ENTER_IA_32_ENV in SDM Volume 2, Chapter 11). All details concerning the
format and operation of this register are considered Intel Restricted.
From the perspective of an ia64 OS, GPTA should be treated as a Reserved
register - it will be initialized by PAL at reset, and the OS should never touch
it.
-- Jim
HP Itanium Processor Architect
> -----Original Message-----
> From: linux-ia64-owner@vger.kernel.org
> [mailto:linux-ia64-owner@vger.kernel.org] On Behalf Of Matt Chapman
> Sent: Monday, April 26, 2004 5:35 AM
> To: linux-ia64@vger.kernel.org
> Subject: cr.gpta register
>
>
> Can anyone tell me what is the purpose of the cr.gpta (Guest
> Page Table
> Address) register? It is referred to in the ASDM and
> elsewhere but not
> explicitly documented.
>
> Thanks,
> Matt
>
> -
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next prev parent reply other threads:[~2004-04-30 17:36 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-26 12:34 cr.gpta register Matt Chapman
2004-04-30 17:36 ` Jim Hull [this message]
2004-04-30 23:04 ` Chris Wedgwood
2004-05-01 13:03 ` Matt Chapman
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