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Date: Wed, 03 Nov 2010 20:55:42 +0200
From: Andriy Gapon <avg@freebsd.org>
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To: Alan Cox <alc@rice.edu>
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Cc: Alan Cox <alc@freebsd.org>, freebsd-current@freebsd.org
Subject: Re: minidump size on amd64
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on 03/11/2010 20:44 Alan Cox said the following:
[snip]

Thank you for the confirmation!

> Andriy Gapon wrote:
>> P.S. is there a macro for extracting frame address from PDPE?
> To a lower level page table page or to a 1GB physical page?  For the latter, you
> can use PG_PS_FRAME.

To a 1GB page.
I see in the architecture manual that the lower bits are marked as MBZ, so this
macro should work.  Actually, it seems that even PG_FRAME should work in place of
PG_PS_FRAME for exactly the same reason (MBZ) on amd64.

Thank you!
-- 
Andriy Gapon