| |
|
 |
|
 |
|
|
|
| |
|
|
xen-devel
RE: [Xen-devel] X86_emulate to be moved into qemu...
> -----Original Message-----
> From: Jon Smirl [mailto:jonsmirl@xxxxxxxxx]
> Sent: 17 May 2006 21:46
> To: Petersson, Mats
> Cc: Keir Fraser; Xen devel list; Benjamin Herrenschmidt
> Subject: Re: [Xen-devel] X86_emulate to be moved into qemu...
>
> On 5/17/06, Petersson, Mats <Mats.Petersson@xxxxxxx> wrote:
> > > Hmmm... wouldn't it be nice if we didn't have a bespoke, buggy &
> > > incomplete emulator for hvm mmio. ;-)
> >
> > In the process of solving this one, I've got to (another) of the
> > blocking points...
>
> If Xen is going to need an x86 emulator, there is also need of a small
> x86 emulator based on klibc as part of the general Linux kernel.
> People often put video cards with x86 ROMs into PPC/Itanium
> machines since the x86 versions are half the price. The
> general idea is that during the boot process the emulator
> would run the x86 ROM and initialize these cards. The same
> code would be used to initialize secondary cards on all
> architectures. After klibc gets added to the kernel tree I'd
> also like to see the emulator and video reset program added.
Ehm, yes, but this is a much smaller emulator, as it's only emulating
instructions that are caught by page faults - so only instructions that
are doing memory accesses.
I think you could use the full x86-emulator that is part of the QEMU
project to achive what you're after, but the x86_emualte_memop() that
we're talking about here would not be even close to sufficient for
running the BIOS on a non-x86 processor.
--
Mats
>
> --
> Jon Smirl
> jonsmirl@xxxxxxxxx
>
>
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
|
|
|
| |
|
Home