From: "H. Peter Anvin" <hpa@zytor.com>
To: Andi Kleen <ak@suse.de>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>,
"Huang, Ying" <ying.huang@intel.com>,
"Eric W. Biederman" <ebiederm@xmission.com>,
akpm@linux-foundation.org,
Linus Torvalds <torvalds@linux-foundation.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH -v7 1/3] x86 boot: setup data
Date: Tue, 23 Oct 2007 16:55:13 -0700 [thread overview]
Message-ID: <471E89E1.7060903@zytor.com> (raw)
In-Reply-To: <200710240118.21160.ak@suse.de>
Andi Kleen wrote:
>
> With the early reserve code in
> ftp://firstfloor.org/pub/ak/x86_64/quilt/patches/early-reserve
> and
> ftp://firstfloor.org/pub/ak/x86_64/quilt/patches/early-alloc
> this could be likely done cleaner.
>
Indeed it could. For i386, the equivalent code would have another
significant benefit: reserving memory and then mapping and accessing it
later would (at least eventually) allow accesses > 4 GB on PAE kernels
(or with a PSE36 hack, on non-PAE kernels.)
-hpa
next prev parent reply other threads:[~2007-10-23 23:55 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-23 8:06 [PATCH -v7 1/3] x86 boot: setup data Huang, Ying
2007-10-23 22:08 ` Jeremy Fitzhardinge
2007-10-23 22:15 ` H. Peter Anvin
2007-10-23 22:20 ` Jeremy Fitzhardinge
2007-10-23 22:32 ` H. Peter Anvin
2007-10-23 22:52 ` H. Peter Anvin
2007-10-23 23:26 ` Jeremy Fitzhardinge
2007-10-23 23:18 ` Andi Kleen
2007-10-23 23:55 ` H. Peter Anvin [this message]
2007-10-24 3:08 ` Huang, Ying
2007-10-24 22:48 ` Andrew Morton
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