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Date:	Tue, 14 Nov 2006 13:40:06 -0800
From:	"H. Peter Anvin" <>
To:	"Eric W. Biederman" <>
CC:	Pavel Machek <>, Vivek Goyal <>,
	linux kernel mailing list <>,
	Reloc Kernel List <>,,,,,
Subject: Re: [RFC] [PATCH 10/16] x86_64: 64bit PIC ACPI wakeup

Eric W. Biederman wrote:
>> Why is PGE no longer required, for example?
> PGE is never required.  Especially on a temporary page table.
> PGE is an optimization, to make context switches faster.

You cannot, however, set the Global bit unless PGE is supported by the 
CPU (you'll trap.)

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