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Re: [Qemu-devel] qemu static elf boot / VGA emulation

From: Fabrice Bellard
Subject: Re: [Qemu-devel] qemu static elf boot / VGA emulation
Date: Mon, 28 Jul 2003 00:27:50 +0200
User-agent: Mozilla/5.0 (X11; U; Linux i586; en-US; rv:1.1) Gecko/20020828

Nicolas Ollinger wrote:

On Thu, 24 Jul 2003, Nicolas Ollinger wrote:

I put a small disk image, kernels, and some files and instructions to use
them under bochs (for comparison purpose) at the following URL:


I just updated the content of the above webpage, it now contains a
bootable NetBSD/i386 filesystem which runs just (slowly) fine under bochs.

The kernel inside the filesystem is now relocated at 0x90000000 in order
to allow qemu boot. So with Fabrice's recent addition of real mode support
in qemu, vl is now able to charge the kernel into memory using the usual
bootloader. Unfortunately, for some reason, the kernel do not boot at all.
No abortion, no fatal error, just... void.

Try with my latest fix. I think now the problem is that a proper VGA emulation is needed. I plan to add it soon by using an SDL wrapper.

My only problem is to choose the right SVGA board to emulate (plain VGA is not suffisant to get proper graphical display). I have the following choices:

- Bochs VBE (easy but limited to 8bpp)
- VMware virtual SVGA (easy but potential driver license problem)
- Intel i810 (there are good docs but the acceleration is complicated)
- Another SVGA card ????

I am interested by any opinion on that matter!


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