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From: Jeremy Fitzhardinge <jeremy@goop.org>
To: "Keshavamurthy, Anil S" <anil.s.keshavamurthy@intel.com>
Cc: akpm@osdl.org, Linux Kernel <linux-kernel@vger.kernel.org>,
	suresh.b.siddha@intel.com
Subject: Re: [patch] Fix BIOS-e820 end address
Date: Fri, 14 Sep 2007 14:00:02 -0700	[thread overview]
Message-ID: <46EAF652.9060405@goop.org> (raw)
In-Reply-To: <20070908205044.GA16419@askeshav-devel.jf.intel.com>

Keshavamurthy, Anil S wrote:
> Subject: [patch] Fix BIOS-e820 end address
>
> --snip of boot message--
> BIOS-provided physical RAM map:
>  BIOS-e820: 0000000000000000 - 00000000000a0000 (usable)
>  BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
>  BIOS-e820: 0000000000100000 - 000000007fe8cc00 (usable)
> ----end snip---
>
> As you see from above the address 0000000000100000 is both
> shown as reserved and usable which is confusing.
>   

I think this is consistent with many other kernel interfaces (such as
/proc/X/maps) where the end address is taken to be exclusive: [0xf0000,
0x100000).

    J

  parent reply	other threads:[~2007-09-14 21:00 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-09-08 20:50 [patch] Fix BIOS-e820 end address Keshavamurthy, Anil S
2007-09-08  7:05 ` Jan Engelhardt
2007-09-14 21:00 ` Jeremy Fitzhardinge [this message]
2007-09-14 21:31   ` Siddha, Suresh B
2007-09-14 21:31     ` Keshavamurthy, Anil S

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