[Qemu-devel] Roadmap for adding non-x86 system mode emulation support?

[Qemu-devel] Roadmap for adding non-x86 system mode emulation support?

[Chad Page]

	I'd still like to get a feel for what's needed to make that work -
I'm itching to get it working on my iBook, and would like to help. 

	Also I'd like to precache libraries... just having glibc and
winelib preconverted would help startup times quite a bit.

	- Chad

Re: [Qemu-devel] Roadmap for adding non-x86 system mode emulation support?

[Fabrice Bellard]

Chad Page wrote:
> 	I'd still like to get a feel for what's needed to make that work -
> I'm itching to get it working on my iBook, and would like to help. 

If you speak about emulating a PC on linux-ppc, I am working on it, so 
it will be available in the next release, at least in soft MMU mode.

> 	Also I'd like to precache libraries... just having glibc and
> winelib preconverted would help startup times quite a bit.

It can be difficult to do. There is still much room for improving the 
dynamic translator. I am thinking about adding a real code generator, at 
least for the PowerPC and ARM cases.

Fabrice.

Re: [Qemu-devel] Roadmap for adding non-x86 system mode emulation support?

[Herbert Poetzl]

On Thu, Oct 30, 2003 at 12:10:49AM +0100, Fabrice Bellard wrote:
> Chad Page wrote:
> >	I'd still like to get a feel for what's needed to make that work -
> >I'm itching to get it working on my iBook, and would like to help. 
> 
> If you speak about emulating a PC on linux-ppc, I am working on it, so 
> it will be available in the next release, at least in soft MMU mode.

again, I would like to point at 
http://www.complang.tuwien.ac.at/schani/bintrans/

this features highly performant i386->PPC translation,
so maybe contacting Mark would be a GoodThing(tm)

> >	Also I'd like to precache libraries... just having glibc and
> >winelib preconverted would help startup times quite a bit.
> 
> It can be difficult to do. There is still much room for improving the 
> dynamic translator. I am thinking about adding a real code generator, at 
> least for the PowerPC and ARM cases.

best,
Herbert

> Fabrice.
> 
> _______________________________________________
> Qemu-devel mailing list
> Qemu-devel@nongnu.org
> http://mail.nongnu.org/mailman/listinfo/qemu-devel

Re: [Qemu-devel] Roadmap for adding non-x86 system mode emulation support?

[Chad Page]

On Thu, 30 Oct 2003, Fabrice Bellard wrote:

> Chad Page wrote:
> > 	I'd still like to get a feel for what's needed to make that work -
> > I'm itching to get it working on my iBook, and would like to help. 
> 
> If you speak about emulating a PC on linux-ppc, I am working on it, so 
> it will be available in the next release, at least in soft MMU mode.

	Excellent - thanks :)
 
> > 	Also I'd like to precache libraries... just having glibc and
> > winelib preconverted would help startup times quite a bit.
> 
> It can be difficult to do. There is still much room for improving the 
> dynamic translator. I am thinking about adding a real code generator, at 
> least for the PowerPC and ARM cases.

	Yeah - I was looking at some of the code translations and there
are some register (re)loads that could be removed from the intermediate
stream, and many operations could be done directly within the stored
register variables.  The combination of the two would probably be
helpful... the balance is making sure the translation dosen't become too
much more expensive.

	- Chad

> Fabrice.
> 
> 
> 
> _______________________________________________
> Qemu-devel mailing list
> Qemu-devel@nongnu.org
> http://mail.nongnu.org/mailman/listinfo/qemu-devel
> 

Re: [Qemu-devel] Roadmap for adding non-x86 system mode emulation support?

[Fabrice Bellard]

Chad Page wrote:
> On Thu, 30 Oct 2003, Fabrice Bellard wrote:
> 
> 
>>Chad Page wrote:
>>
>>>	I'd still like to get a feel for what's needed to make that work -
>>>I'm itching to get it working on my iBook, and would like to help. 

With the latest commits I was able to launch an x86 Linux kernel on a 
PowerPC Linux box :-)

I am interested to know if the VGA emulation works too as I don't have 
X11 access to a PowerPC system. Using the image 'linux.img' available on 
the web site would be a good test.

Fabrice.

Re: [Qemu-devel] Roadmap for adding non-x86 system mode emulation support?

[Leigh Dyer]

On Thu, 2003-10-30 at 12:26, Fabrice Bellard wrote:
> Chad Page wrote:
> > On Thu, 30 Oct 2003, Fabrice Bellard wrote:
> > 
> > 
> >>Chad Page wrote:
> >>
> >>>	I'd still like to get a feel for what's needed to make that work -
> >>>I'm itching to get it working on my iBook, and would like to help. 
> 
> With the latest commits I was able to launch an x86 Linux kernel on a 
> PowerPC Linux box :-)
> 
> I am interested to know if the VGA emulation works too as I don't have 
> X11 access to a PowerPC system. Using the image 'linux.img' available on 
> the web site would be a good test.
> 

I just compiled current CVS on my Debian Unstable PowerPC machine
(changing "regs" to "gregs" in cpu-exec.c). VGA text modes are very
badly corrupted - no actual text ever appears, only character-sized
blocks of colour. In some cases (such as the lilo menu screen) it seems
to get the background colours right at least, but the POST screen has
blocks of colour in various places that don't seem to represent anything
at all.

Graphical VGA modes seem to be a bit more successful. The linux.img
image didn't want to boot, but my Debian Woody image, with a 2.4.18
kernel using vga16fb, did - the palette looks a bit wrong (the text is
all yellow, for instance), but apart from that it looks fine.

If you'd like screenshots of any of this, please let me know and I'll
see what I can do.

Thanks
Leigh

> Fabrice.
> 
> 
> 
> _______________________________________________
> Qemu-devel mailing list
> Qemu-devel@nongnu.org
> http://mail.nongnu.org/mailman/listinfo/qemu-devel
> 

Re: [Qemu-devel] Roadmap for adding non-x86 system mode emulation support?

[Chad Page]

	Similar results here... except the bochs-based image does go into
graphical mode if you give it enough time.  57 bogomips on my iBook 800,
for lack of any good benchmark.  Once the vga.c stuff is fixed it looks
like it'll work great :)  

	- Chad

On Thu, 30 Oct 2003, Leigh Dyer wrote:

> On Thu, 2003-10-30 at 12:26, Fabrice Bellard wrote:
> > Chad Page wrote:
> > > On Thu, 30 Oct 2003, Fabrice Bellard wrote:
> > > 
> > > 
> > >>Chad Page wrote:
> > >>
> > >>>	I'd still like to get a feel for what's needed to make that work -
> > >>>I'm itching to get it working on my iBook, and would like to help. 
> > 
> > With the latest commits I was able to launch an x86 Linux kernel on a 
> > PowerPC Linux box :-)
> > 
> > I am interested to know if the VGA emulation works too as I don't have 
> > X11 access to a PowerPC system. Using the image 'linux.img' available on 
> > the web site would be a good test.
> > 
> 
> I just compiled current CVS on my Debian Unstable PowerPC machine
> (changing "regs" to "gregs" in cpu-exec.c). VGA text modes are very
> badly corrupted - no actual text ever appears, only character-sized
> blocks of colour. In some cases (such as the lilo menu screen) it seems
> to get the background colours right at least, but the POST screen has
> blocks of colour in various places that don't seem to represent anything
> at all.
> 
> Graphical VGA modes seem to be a bit more successful. The linux.img
> image didn't want to boot, but my Debian Woody image, with a 2.4.18
> kernel using vga16fb, did - the palette looks a bit wrong (the text is
> all yellow, for instance), but apart from that it looks fine.
> 
> If you'd like screenshots of any of this, please let me know and I'll
> see what I can do.
> 
> Thanks
> Leigh
> 
> > Fabrice.
> > 
> > 
> > 
> > _______________________________________________
> > Qemu-devel mailing list
> > Qemu-devel@nongnu.org
> > http://mail.nongnu.org/mailman/listinfo/qemu-devel
> > 
> 
> 
> 
> _______________________________________________
> Qemu-devel mailing list
> Qemu-devel@nongnu.org
> http://mail.nongnu.org/mailman/listinfo/qemu-devel
> 

Re: [Qemu-devel] Roadmap for adding non-x86 system mode emulation support?

[Fabrice Bellard]

Can you send me more info about your X11 server (number of bits per 
pixel, endianness) ? The output of xdpyinfo would suffice.

Thank you,

Fabrice.

Leigh Dyer wrote:
> On Thu, 2003-10-30 at 12:26, Fabrice Bellard wrote:
> 
>>Chad Page wrote:
>>
>>>On Thu, 30 Oct 2003, Fabrice Bellard wrote:
>>>
>>>
>>>
>>>>Chad Page wrote:
>>>>
>>>>
>>>>>	I'd still like to get a feel for what's needed to make that work -
>>>>>I'm itching to get it working on my iBook, and would like to help. 
>>>>
>>With the latest commits I was able to launch an x86 Linux kernel on a 
>>PowerPC Linux box :-)
>>
>>I am interested to know if the VGA emulation works too as I don't have 
>>X11 access to a PowerPC system. Using the image 'linux.img' available on 
>>the web site would be a good test.
>>
> 
> 
> I just compiled current CVS on my Debian Unstable PowerPC machine
> (changing "regs" to "gregs" in cpu-exec.c). VGA text modes are very
> badly corrupted - no actual text ever appears, only character-sized
> blocks of colour. In some cases (such as the lilo menu screen) it seems
> to get the background colours right at least, but the POST screen has
> blocks of colour in various places that don't seem to represent anything
> at all.
> 
> Graphical VGA modes seem to be a bit more successful. The linux.img
> image didn't want to boot, but my Debian Woody image, with a 2.4.18
> kernel using vga16fb, did - the palette looks a bit wrong (the text is
> all yellow, for instance), but apart from that it looks fine.
> 
> If you'd like screenshots of any of this, please let me know and I'll
> see what I can do.
> 
> Thanks
> Leigh
> 
> 
>>Fabrice.
>>
>>
>>
>>_______________________________________________
>>Qemu-devel mailing list
>>Qemu-devel@nongnu.org
>>http://mail.nongnu.org/mailman/listinfo/qemu-devel
>>
> 
> 
> 
> 
> _______________________________________________
> Qemu-devel mailing list
> Qemu-devel@nongnu.org
> http://mail.nongnu.org/mailman/listinfo/qemu-devel
> 
> 

Re: [Qemu-devel] Roadmap for adding non-x86 system mode emulation support?

[Chad Page]

	Thanks - I'll check it out later tonight when my iBook's back in
Linux :)

	- Chad


On Thu, 30 Oct 2003, Fabrice Bellard wrote:

> Chad Page wrote:
> > On Thu, 30 Oct 2003, Fabrice Bellard wrote:
> > 
> > 
> >>Chad Page wrote:
> >>
> >>>	I'd still like to get a feel for what's needed to make that work -
> >>>I'm itching to get it working on my iBook, and would like to help. 
> 
> With the latest commits I was able to launch an x86 Linux kernel on a 
> PowerPC Linux box :-)
> 
> I am interested to know if the VGA emulation works too as I don't have 
> X11 access to a PowerPC system. Using the image 'linux.img' available on 
> the web site would be a good test.
> 
> Fabrice.
> 
> 
> 
> _______________________________________________
> Qemu-devel mailing list
> Qemu-devel@nongnu.org
> http://mail.nongnu.org/mailman/listinfo/qemu-devel
>