linux-kernel - Re: BGRT Pointer in System RAM

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Date:	Mon, 15 Jul 2013 19:56:27 -0400
From:	Parag Warudkar <parag.lkml@...il.com>
To:	Josh Triplett <josh@...htriplett.org>
Cc:	Andy Lutomirski <luto@...capital.net>,
	LKML <linux-kernel@...r.kernel.org>, linux-acpi@...r.kernel.org
Subject: Re: BGRT Pointer in System RAM

On Mon, Jul 15, 2013 at 7:04 PM, Josh Triplett <josh@...htriplett.org> wrote:

> We do need to handle the case of a valid pointer into memory that e820
> calls system RAM, as well as the case of a valid pointer into memory
> reserved for the BIOS or similar, but not the case of an invalid
> pointer.

Would that be as simple as

                     page_is_ram(
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