From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Jim Hull" <jim.hull@hp.com>
Date: Fri, 30 Apr 2004 17:36:32 +0000
Subject: RE: cr.gpta register
Message-Id: <01b101c42ed9$ada1f5b0$f463f40f@jh733133>
List-Id: <linux-ia64.vger.kernel.org>
References: <20040426123437.GA6567@cse.unsw.EDU.AU>
In-Reply-To: <20040426123437.GA6567@cse.unsw.EDU.AU>
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To: linux-ia64@vger.kernel.org

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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