Re: [Qemu-devel] SystemC Cosimulation

["Alessandro Corradi" <ale.corradi@gmail.com>]

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Hello,

I already did this simulation/integration between qemu/systemC. I integrated
a simple memory writen in SystemC and it communicate with QEMU via socket .
It works very fine, the os installed on qemu (debian 3.1) can communicate
with it, but I didn't recognize it as a PCI device and I didn't implement
irq mechanism. This because I'm not so strong in C programming (this is a
work for my university and my degree's thesys). Moreover I didn't find
usefull documentation, I wrote my code based only on parallel.c and serial.c
 code.
I don't know why it works without irq... I tried to do something but irq are
not "launched".

If you are interested I written some emails in devel mail list with some
information and question...

The systemC description is a stand alone process that receive and send
messagges via socket. I added a module in QEMU in order to estabilish a
connection at initializzation time and send/receive data when a write/read
is done.
As I told, the main point that I don't understand are:
-irq managing,
-create a device and manage it as a pci device.

Thanks,

Alessandro


2006/11/21, Màrius Montón <marius.monton@uab.es>:
>
> Yes, thats the idea behind our work.
> We write a module for qemu that emulates Altera PCI Core. By one side this
> module is 'attached' to qemu PCI bus, and for on the other side is the
> systemC interface to any module you write. Then, any OS running into Qemu
> sees this new PCI device, and you can develop your driver, of course.
>
> Actually, all this stuff must be compiled and linked together, and when
> running systemC simulation, qemu is freezed, so no time considerations can
> be taken.
>
> In next version, I'll try to split into two executables: one for qemu and
> one for systemC simulator, both connected using sockets or something
> similar.
>
> we will publish this work in our website soon
>
> Thank for you attention,
>
> Màrius
>
> Doug Schaefer wrote:
>
>  Very cool. I'm guessing that this means that you can take any SystemC
> design and use qemu to develop drivers for it, yes?
>
>
>
> Cheers,
>
> Doug Schaefer
>
>
>   ------------------------------
>
> *From:* qemu-devel-bounces+dschaefer=qnx.com@nongnu.org [
> mailto:qemu-devel-bounces+dschaefer=qnx.com@nongnu.org<qemu-devel-bounces+dschaefer=qnx.com@nongnu.org>]
> *On Behalf Of *Màrius Montón
> *Sent:* Monday, November 20, 2006 1:37 PM
> *To:* qemu-devel@nongnu.org
> *Subject:* [Qemu-devel] SystemC Cosimulation
>
>
>
> Hi,
>
> As a HW researcher, me and one student at my charge have develop a device
> to Qemu. This device is connecto to virtual PC as a PCI device, and its
> functionality is described using SystemC.
>
> I'm finishing to clean the code up, and our intention is to publish all
> code. Also, I will continue development of this work to add more features
> (like async communications and IRQ generation).
>
> Thanks,
>
> Màrius Montón
>
>
>
> ------------------------------
>
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>
> --
>   Màrius Montón i Macián   marius.monton@uab.cat   http://cephis.uab.es<http://www.mariusmonton.name/>
> Hardware Engineer
> CEPHIS
> Centre de Prototips i Solucions Hardware-Software
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