[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Qemu-devel] Split vga module

From: Blue Swirl
Subject: Re: [Qemu-devel] Split vga module
Date: Wed, 25 Jun 2008 20:33:08 +0300

On 6/25/08, Màrius Montón <address@hidden> wrote:
>  Hello, and thank you for your quick answer,
>  the problem I see is not with the register access (this is done for other 
> devices) but with the graphics side.
>  I don't understand how VGA device draws the screen, (I guess is done using 
> SDL), and I think this part is too merged with QEMU itself. Is it true?
>  Màrius
>  Blue Swirl wrote:
>    On 6/25/08, Màrius Montón <address@hidden> wrote:
>       Hello all,
>  My question is how I can split VGA module in a different process from QEMU.
>  I need it in order to simulate a VGA module described in SystemC into QEMU 
> (http://www.greensocs.com/en/projects/QEMUSystemC) where all SystemC stuff 
> runs in other process than QEMU.
>  I look at the code, and vga code seems to be too merged with QEMU itself to 
> be splitted.. but, there's any solution?
>       Interesting. You could try to catch all IO and MMIO towards VGA and
> redirect those to the other process with some kind of IPC. You must
> change the MMIO area registration, because now the VGA MMIO accesses
> are optimised so that no callbacks are involved.

Well, the graphics side can be SDL, VNC or dummy. I wonder why would
you want to handle that area, because from the emulated system point
of view, your device would be between the screen and the VGA card.

reply via email to

[Prev in Thread] Current Thread [Next in Thread]