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Re: [Qemu-devel] Open source qemu x86 accelerator module.
From: |
Herbert Poetzl |
Subject: |
Re: [Qemu-devel] Open source qemu x86 accelerator module. |
Date: |
Sun, 3 Apr 2005 20:58:53 +0200 |
User-agent: |
Mutt/1.5.6i |
On Sun, Apr 03, 2005 at 12:22:16AM +0100, Paul Brook 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/
excellent work!
> 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 ;-)
is an ioctl interface really the best choice here?
what about a new syscall instead?
I know that might need some changes to qemu too, but
I guess it might increase performance ...
(i.e. lower overhead)
best,
Herbert
> 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
> address@hidden
> http://lists.nongnu.org/mailman/listinfo/qemu-devel
- [Qemu-devel] Open source qemu x86 accelerator module., Paul Brook, 2005/04/02
- Re: [Qemu-devel] Open source qemu x86 accelerator module., Jim C. Brown, 2005/04/02
- Re: [Qemu-devel] Open source qemu x86 accelerator module., Jean-Michel POURE, 2005/04/03
- Re: [Qemu-devel] Open source qemu x86 accelerator module., ML, 2005/04/03
- Re: [Qemu-devel] Open source qemu x86 accelerator module.,
Herbert Poetzl <=
- Re: [Qemu-devel] Open source qemu x86 accelerator module., Jens Arm, 2005/04/04