Re: [Qemu-devel] SystemC Cosimulation

[Alessandro Corradi]

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 <address@hidden>:

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: address@hidden [ mailto:address@hidden] On Behalf Of Màrius Montón
Sent: Monday, November 20, 2006 1:37 PM
To: address@hidden
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   address@hidden    http://cephis.uab.es Hardware Engineer CEPHIS Centre de Prototips i Solucions Hardware-Software Dep. Microelectrònica i Sistemes Electrònics ETSE - Universitat Autònoma de Barcelona (UAB)

Phone: +34 935 813 534 Fax: +34 935 813 033 QC-2090D. ETSE. Campus UAB. 080193 Bellaterra

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