From: Bernhard Kauer <kauer@chrom.inf.tu-dresden.de>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] Qemu / KQemu on 64-bit (x86_64) host systems
Date: Tue, 17 Apr 2007 13:26:15 +0200 [thread overview]
Message-ID: <20070417112615.GD2722@chrom.inf.tu-dresden.de> (raw)
In-Reply-To: <46231BEB.5070402@t-online.de>
On Mon, Apr 16, 2007 at 08:47:07AM +0200, Werner Dittmann wrote:
> My general thought about the problem: running 32bit code
> on a 64bit host with similar architecture as this is the case
> of x86 / x86_64 could easily result in problems with signedness,
> sign bit extension, different pointer/word/interger sizes...
qemu-system-x86_64 has indeed some signedness problem. I posted a
patch <20070410133045.GC6046@chrom.inf.tu-dresden.de> a couple of
days ago for the problem that the pagefault address gets incorrectly
sign extended when running 32-bit code. Nevertheless its just a
workaround, the place where this wrong sign extension happend needs
still to be found.
Bernhard Kauer
prev parent reply other threads:[~2007-04-17 11:30 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-16 6:47 [Qemu-devel] Qemu / KQemu on 64-bit (x86_64) host systems Werner Dittmann
2007-04-17 5:05 ` andrzej zaborowski
2007-04-17 18:34 ` Werner Dittmann
2007-04-17 20:02 ` andrzej zaborowski
2007-04-18 19:26 ` Werner Dittmann
2007-04-18 19:44 ` Werner Dittmann
2007-04-18 20:05 ` andrzej zaborowski
2007-04-19 15:25 ` Werner Dittmann
2007-04-19 17:08 ` andrzej zaborowski
2007-04-20 14:28 ` Werner Dittmann
2007-04-22 10:18 ` Werner Dittmann
2007-04-17 11:26 ` Bernhard Kauer [this message]
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