Re: [Qemu-devel] Code Copy / New Linux boot code

[Michael Torrie]

On Sun, 2004-02-15 at 20:43, Ed Suominen wrote:
> Jamie, your rootless windows concept, in conjunction with QEMU's
> emerging ability to provide VMware-like virtualization in a GPL package,
> could be an excellent way to make existing Windows speech recognition
> software seamlessly usable on the linux desktop. If it's not too much
> trouble, please keep me apprised of your progress in this area!

Seems like the best approach would be to write a special graphics driver
for MS Windows that would translate gdi calls into X calls, allowing
Windows windows to be displayed on the X desktop, with the Windows
desktop hidden.  Eventually things like the system tray could be thunked
to display icons in the Gnome/KDE tray area.  All in all, I think such a
thing would be incredibly useful.

Michael


> 
> Best regards,
> Ed Suominen
> 
> Copy to mailing list of the
> Open Source Speech Recognition Initiative
> 
> Link: QEMU (http://fabrice.bellard.free.fr/qemu/)
> 
> On Mon, 16 Feb 2004 00:52:56 -0000
> "Jamie Burns" <address@hidden> wrote:
> 
> > Wow. Thanks for your hard work!
> > 
> > The x86 to x86 is just what I was hoping for - a fast case where
> > host/target CPU are the same architecture.
> > 
> > When I get some time, I plan to write some software for WindowsXP, so
> > that it will be able to export application windows in such a way that
> > they can be seen as "rootless" windows in a seperate windowing
> > environment (on X11 etc.).
> > 
> > What this would mean for a virtual machine like Qemu is that Windows
> > applications could be run on Linux at near native speeds. Think of it
> > like Mac OSX's Classic environment - in this case, you load up Windows
> > into the virtual machine (you never have to actually show the Windows
> > desktop per se) and then launch applications which are exported to and
> > framed by the X11 window manager. It should "feel" like Windows
> > applications are running on your Linux desktop at good speed with full
> > compatability (as far as is afforded by the virtual machine).
> > 
> > :o)
> > 
> > Jamie Burns.
> > 
> > ----- Original Message ----- 
> > From: "Fabrice Bellard" <address@hidden>
> > To: <address@hidden>
> > Sent: Monday, February 16, 2004 12:07 AM
> > Subject: [Qemu-devel] Code Copy / New Linux boot code
> > 
> > 
> > > Just to give more information about the next commits:
> > >
> > > 1) I finally added a hand coded x86 to x86 translator. It means that
> > > qemu-fast has now close to native performances on x86. Who spoke
> > > about PC virtualization ? :-)
> > >
> > > The x86 to x86 translator is limited to flat 32 bit mode and it does
> > > not support floating point (yet !). If the translator cannot handle
> > > a given instruction, then the "portable" translator is used as a
> > > fallback.
> > >
> > > 2) qemu-fast is being enhanced to run unpatched OSes and to support
> > > VESA VBE graphics.
> > >
> > > The limitations of qemu-fast are that if data at addresses >=
> > > 0xc0000000 is used, then soft MMU is used in the corresponding
> > > translated block.
> > >
> > > Moreover, the guest user code has write access to the guest OS code
> > > and also to the host QEMU code. It means that qemu-fast is not safe.
> > > I don't know yet what is the best way to solve this issue.
> > >
> > > 3) A new and simpler Linux kernel loader has been added (for the
> > > '-kernel' command line option). Now the PC BIOS and the VGA BIOS are
> > > run before running the kernel, which gives exactly the same behavior
> > > as if the kernel was booted normally.
> > >
> > > Fabrice.
> > >
> > >
> > >
> > > _______________________________________________
> > > Qemu-devel mailing list
> > > address@hidden
> > > http://mail.nongnu.org/mailman/listinfo/qemu-devel
> > 
> > 
> > 
> > _______________________________________________
> > Qemu-devel mailing list
> > address@hidden
> > http://mail.nongnu.org/mailman/listinfo/qemu-devel
> 
> 
> 
> 
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-- 
Michael Torrie <address@hidden>