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xen-devel
Re: [Xen-devel] [PATCH] Calculate correct instruction length for data-fa
On Sat, 2006-04-29 at 11:39 +0100, Keir Fraser wrote:
>
> Xen-emulated devices could have their state fetched on demand -- it
> ought to be rare that qemu-dm ends up emulating an access to such a
> device. Or have qemu call down into Xen to emulate those accesses.
> Having a device model duplicated in both Xen and qemu, and
> synchronising between the two, sounds a bit sketchy.
In the BIOS (realmode) these devices are initialized and the subsequent
32-bit code depends on the proper initialization. For the common I/O
emulation case this should hopefully be rare.
Leendert
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