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Message-ID: <1387338529.3140.42.camel@snotra.buserror.net>
Date:	Tue, 17 Dec 2013 21:48:49 -0600
From:	Scott Wood <scottwood@...escale.com>
To:	Tiejun Chen <tiejun.chen@...driver.com>
CC:	<benh@...nel.crashing.org>, <linuxppc-dev@...ts.ozlabs.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [v3][PATCH 7/8] book3e/kexec/kdump: redefine VIRT_PHYS_OFFSET

On Tue, 2013-07-09 at 16:03 +0800, Tiejun Chen wrote:
> Book3e is always aligned 1GB to create TLB so we should
> use (KERNELBASE - MEMORY_START) as VIRT_PHYS_OFFSET to
> get __pa/__va properly while boot kdump.

What if MEMORY_START - PHYSICAL_START >= 1 GiB?

What about the comment that says we can't use MEMORY_START before
parsing the device tree?

-Scott


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