[Qemu-devel] How to add a new machine support in qemu?

[Qemu-devel] How to add a new machine support in qemu?

[Michael Qiu]

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I'm going to add a new mips machine with a mips core. But I can not find a
proper document for me to do so. Can anyone give a link? Or any suggestion
for this?
Thanks in advance.

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Re: [Qemu-devel] How to add a new machine support in qemu?

[Scott Tsai]

Michael,
You might want to read these two threads:
"RE: [Qemu-devel] Support for new target emulator":
http://lists.gnu.org/archive/html/qemu-devel/2009-10/msg02131.html
"[Qemu-devel] [PATCH 00/12] S/390 support"
http://lists.gnu.org/archive/html/qemu-devel/2009-10/msg01857.html

Re: [Qemu-devel] How to add a new machine support in qemu?

[Scott Tsai]

On Fri, Nov 6, 2009 at 12:43 PM, Scott Tsai <scottt.tw@gmail.com> wrote:
> Michael,
> You might want to read these two threads:
> "RE: [Qemu-devel] Support for new target emulator":
> http://lists.gnu.org/archive/html/qemu-devel/2009-10/msg02131.html
> "[Qemu-devel] [PATCH 00/12] S/390 support"
> http://lists.gnu.org/archive/html/qemu-devel/2009-10/msg01857.html

On second though, my previous advise is only suited for people adding
new instruction set architectures in  QEMU,
if you're MIPS core doesn't add new instructions then take I'd look at:
hw/mips_mipssim.c
hw/mips_jazz.c
and add the missing platform peripheral emulation?

Re: [Qemu-devel] How to add a new machine support in qemu?

[Michael Qiu]

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Thanks for your reply. I'm reading hw/mips_r4k.c. But I found I should dive
into the source code.
I'm looking for some big picture level document for add a new machine using
a supported core.
It seems qemu consists 3 parts of code
1. The core dynamic translate engineer to support several archs, just like
mips, arm, ppc....
2. The peripheral emulation pool.
3. The platform relative code, just like hw/mips_jazz.c ..., it just connect
the arch and the peripherals according to the real board.
I think my work should be the 2 and 3. And I'd like to find some documents
for them.

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Re: [Qemu-devel] How to add a new machine support in qemu?

[Stefan Weil]

Michael Qiu schrieb:
> Thanks for your reply. I'm reading hw/mips_r4k.c. But I found I should
> dive into the source code.
> I'm looking for some big picture level document for add a new machine
> using a supported core.
> It seems qemu consists 3 parts of code
> 1. The core dynamic translate engineer to support several archs, just
> like mips, arm, ppc....
> 2. The peripheral emulation pool.
> 3. The platform relative code, just like hw/mips_jazz.c ..., it just
> connect the arch and the peripherals according to the real board.
> I think my work should be the 2 and 3. And I'd like to find some
> documents for them.
>

You are correct, 2 and 3 is needed. There are no documents
(at least I don't know any).

Take mips_jazz.c or mips_malta.c, make a copy of one of them
and fit it to your needs (don't forget to extend Makefiles).

Regards
Stefan