Re: [Qemu-devel] Open source qemu x86 accelerator module.

From: Hetz Ben Hamo <hetzbh@gmail.com>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] Open source qemu x86 accelerator module.
Date: Sun, 3 Apr 2005 01:45:48 +0200	[thread overview]
Message-ID: <41e41e7a050402154521b4d775@mail.gmail.com> (raw)
In-Reply-To: <200504030022.17173.paul@codesourcery.com>

Hi Paul,

First - congratulations for your new kernel module. I have few
questions, if you don't mind:

1. Have you tested the speed compared to QEMU CVS + kqemu?
2. Which Windows 2000 have you installed? there are few versions of
the bootable CD's, few of them comes with service packs already
applied..
3. Do you plan to make it work with the 2.4.x kernels?
4. Have you tried installing it with XP as guest?

Thanks,
Hetz

On Apr 3, 2005 1:22 AM, Paul Brook <paul@codesourcery.com> wrote:
> I'd like to announce qvm86; an open source x86 accelerator module for qemu.
> 
> qvm86 is basically a drop-in replacement for kqemu. However is is an
> independent replacement written from scratch by myself, and released under
> the GnNU General Public Licence (GPL).
> 
> The CVS repository and mailing list for qvm86 are hosted on savannah:
> http://www.nongnu.org/qvm86/
> 
> qvm86 is still in the early stages of development, so I provide no guarantees
> about its reliability. It almost certainly has bugs which could crash your
> machine or cause data corruption. Any assistance identifying and fixing these
> bugs is welcomed ;-)
> 
> See the README file in qvm86 CVS for brief instructions how to install. It's
> basically the same procedure as kqemu.
> 
> qvm86 currently only works on x86-linux hosts, and has only been tested on
> relatively recent 2.6 kernels with udev installed.
> 
> It should be possible to port qvm86 to other x86 hosts (eg. FreeBSD or even
> Windows). I don't have immediate plans for doing such ports, but would
> welcome patches if other people want to do the porting. It may also be
> possible to x86-64 hosts, but I don't know enough details to say how hard
> this would be.
> 
> I have successfully booted windows 2000, freebsd and couple of different linux
> guests. Windows 98 guests don't work, but I think I know what's wrong.
> 
> Performance depends heavily on the guest wokload. It varies from near-native
> to about the same as normal qemu. For example compiling qemu with gcc is ~5x
> slower than native (normal qemu is ~17x slower). I believe there is sill
> quite a bit of scope for improving performance.
> 
> Paul Brook
> 
> _______________________________________________
> Qemu-devel mailing list
> Qemu-devel@nongnu.org
> http://lists.nongnu.org/mailman/listinfo/qemu-devel
>