From: "H. Peter Anvin" <hpa@zytor.com>
To: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>,
linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org,
jbarnes@virtuousgeek.org
Subject: Re: [PATCH 2/4] x86: ioremap: fix physical address check
Date: Mon, 14 Jun 2010 08:12:04 -0700 [thread overview]
Message-ID: <4C1646C4.1010002@zytor.com> (raw)
In-Reply-To: <4C15E7F4.9090607@jp.fujitsu.com>
On 06/14/2010 01:27 AM, Kenji Kaneshige wrote:
>
> Please ignore above. I misunderstood the architectural limit of physical
> address in x86 32-bit mode. It is not 40-bits, but 52-bits.
>
Well, it can be anywhere from 32 to 52 bits, depending on the hardware.
-hpa
--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.
next prev parent reply other threads:[~2010-06-14 15:12 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-11 9:17 [RFC][PATCH 0/4] x86: ioremap() problem in X86_32 PAE Kenji Kaneshige
2010-06-11 9:18 ` [PATCH 1/4] x86: ioremap: fix wrong address masking Kenji Kaneshige
2010-06-11 9:20 ` [PATCH 2/4] x86: ioremap: fix physical address check Kenji Kaneshige
2010-06-11 17:43 ` H. Peter Anvin
2010-06-14 0:18 ` KAMEZAWA Hiroyuki
2010-06-14 8:59 ` KAMEZAWA Hiroyuki
2010-06-14 9:13 ` Kenji Kaneshige
2010-06-14 11:06 ` Kenji Kaneshige
2010-06-14 18:36 ` H. Peter Anvin
2010-06-15 2:21 ` Kenji Kaneshige
2010-06-14 20:16 ` Rolf Eike Beer
2010-06-15 2:33 ` Kenji Kaneshige
2010-06-14 1:54 ` Kenji Kaneshige
2010-06-14 6:38 ` Maciej W. Rozycki
2010-06-14 8:23 ` Kenji Kaneshige
2010-06-14 9:02 ` Kenji Kaneshige
2010-06-14 15:40 ` H. Peter Anvin
2010-06-14 15:11 ` H. Peter Anvin
2010-06-14 8:27 ` Kenji Kaneshige
2010-06-14 15:12 ` H. Peter Anvin [this message]
2010-06-11 9:20 ` [PATCH 3/4] x86: ioremap: remove physical address warning message Kenji Kaneshige
2010-06-11 17:44 ` H. Peter Anvin
2010-06-14 2:06 ` Kenji Kaneshige
2010-06-11 9:21 ` [PATCH 4/4] x86: ioremap: fix normal ram range check Kenji Kaneshige
2010-06-11 17:41 ` [RFC][PATCH 0/4] x86: ioremap() problem in X86_32 PAE H. Peter Anvin
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