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[Xen-devel] Re: [RFC, PATCH 7/24] i386 Vmi memory hole

To: Zachary Amsden <zach@xxxxxxxxxx>
Subject: [Xen-devel] Re: [RFC, PATCH 7/24] i386 Vmi memory hole
From: Chris Wright <chrisw@xxxxxxxxxxxx>
Date: Tue, 14 Mar 2006 13:56:17 -0800
Cc: Andrew Morton <akpm@xxxxxxxx>, Joshua LeVasseur <jtl@xxxxxxxxxx>, Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Pratap Subrahmanyam <pratap@xxxxxxxxxx>, Wim Coekaerts <wim.coekaerts@xxxxxxxxxx>, Jack Lo <jlo@xxxxxxxxxx>, Dan Hecht <dhecht@xxxxxxxxxx>, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>, Jan Beulich <jbeulich@xxxxxxxxxx>, Christopher Li <chrisl@xxxxxxxxxx>, Chris Wright <chrisw@xxxxxxxxxxxx>, Virtualization Mailing List <virtualization@xxxxxxxxxxxxxx>, Linus Torvalds <torvalds@xxxxxxxx>, Anne Holler <anne@xxxxxxxxxx>, Jyothy Reddy <jreddy@xxxxxxxxxx>, Kip Macy <kmacy@xxxxxxxxxxx>, Ky Srinivasan <ksrinivasan@xxxxxxxxxx>, Leendert van Doorn <leendert@xxxxxxxxxxxxxx>, Gerd Hoffmann <kraxel@xxxxxxx>, Dan Arai <arai@xxxxxxxxxx>
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* Zachary Amsden (zach@xxxxxxxxxx) wrote:
> Allow creation of an compile time hole at the top of linear address space.
> 
> Extended to allow a dynamic hole in linear address space, 7/2005.  This
> required some serious hacking to get everything perfect, but the end result
> appears to function quite nicely.  Everyone can now share the appreciation
> of pseudo-undocumented ELF OS fields, which means core dumps, debuggers
> and even broken or obsolete linkers may continue to work.

Thanks.  Gerd did something similar (although I believe it's simpler,
don't recall the relocation magic) for Xen.  Either way, it's useful
from Xen perspective.

thanks,
-chris

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