From: Richard Henderson <rth@twiddle.net>
To: Stefan Weil <weil@mail.berlios.de>
Cc: Laurent Desnogues <laurent.desnogues@gmail.com>,
"Edgar E. Iglesias" <edgar.iglesias@gmail.com>,
qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH] User mode: Handle x86_64 vsyscall
Date: Sat, 06 Feb 2010 12:12:42 -0800 [thread overview]
Message-ID: <4B6DCD3A.3080403@twiddle.net> (raw)
In-Reply-To: <4B6CA26C.3060106@mail.berlios.de>
On 02/05/2010 02:57 PM, Stefan Weil wrote:
> I tried to modify x86_64-linux-user to set up a vsyscall page in high
> memory, but this seems to be difficult (at least with 32 bit host).
A 64-bit userland guest can only use the low 32-bits of its address
space with a 32-bit host at the moment. If you can set up the vsyscall
page in low memory, then you may be able to get this to work.
Otherwise you'll have to wait for someone to re-write the userland
memory management in qemu.
r~
prev parent reply other threads:[~2010-02-06 20:12 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-11 15:14 [Qemu-devel] [PATCH] User mode: Handle x86_64 vsyscall Laurent Desnogues
2009-10-17 15:42 ` [Qemu-devel] " Laurent Desnogues
2009-10-17 19:57 ` [Qemu-devel] " Edgar E. Iglesias
2009-10-18 0:16 ` Laurent Desnogues
2009-10-18 2:47 ` Jamie Lokier
2009-10-18 11:23 ` Laurent Desnogues
2009-10-18 3:09 ` Jamie Lokier
2009-10-18 7:17 ` Edgar E. Iglesias
2009-10-18 11:29 ` Laurent Desnogues
2010-02-04 22:15 ` Stefan Weil
2010-02-05 22:57 ` Stefan Weil
2010-02-06 1:37 ` Laurent Desnogues
2010-02-06 7:49 ` Stefan Weil
2010-02-06 23:50 ` Laurent Desnogues
2010-02-07 0:22 ` Jamie Lokier
2010-02-07 3:11 ` malc
2010-02-07 10:06 ` Laurent Desnogues
2010-02-07 23:18 ` Richard Henderson
2010-02-08 14:57 ` Vince Weaver
2010-02-06 20:12 ` Richard Henderson [this message]
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