From: "Anthony Brock" <Anthony_Brock@ous.edu>
To: user-mode-linux-devel@lists.sourceforge.net
Subject: Re: [uml-devel] UML on AMD64 x86_64
Date: Wed, 22 Sep 2004 09:20:28 -0700 [thread overview]
Message-ID: <s1514402.032@ORANGE.OUS.EDU> (raw)
Jim,
You can run a 32-bit UML on an AMD 64-bit OS. However, there are some
issues:
1. The guest kernel needs to be compiled on a 32-bit OS. While it will
run on the 64-bit, I haven't had any success with compiling.
2. The host SKAS patch has not yet been ported (publicly) to AMD
64-bit. So your guest kernels will ONLY run in TT mode.
Good luck!
Tony
>>> "jmf" <jmfguy@excite.com> 09/22/04 06:07AM >>>
I'm using 64 bit Gentoo on an Athlon64 and it would be really nice to
have a working port of 32 bit UML. This would allow us to sandbox a 32
bit Gentoo kernel within the 64 bit Gentoo environment.
I want to emphasize that I'm not even asking for a real 64 bit UML
port, I simply want the standard UML 32 bit port to compile, and run, in
amd64 32-bit mode. This would allow people in amd64 linux-land to have
some form of UML to use while we wait for a true 64-bit implementation.
I tried simply compiling the 32 bit UML port using gcc 3.3.4 and
"linux32 make linux ARCH=um" with a SUBARCH := i386, but this failed
complaining about things like
arch/um/sys-i386/util/mk_sc.c:30: error: structure has no member named
`eax'
I'm surprised UML didn't compile so if anyone has some suggestions to
try, please let me know.
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next reply other threads:[~2004-09-22 16:20 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-22 16:20 Anthony Brock [this message]
-- strict thread matches above, loose matches on Subject: below --
2004-09-22 13:07 [uml-devel] UML on AMD64 x86_64 jmf
2004-09-22 18:05 ` Michael Richardson
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