* Running and 386 emulator on Xen
@ 2005-07-01 6:39 Leen Toelen
2005-07-03 12:35 ` Mark Williamson
0 siblings, 1 reply; 2+ messages in thread
From: Leen Toelen @ 2005-07-01 6:39 UTC (permalink / raw)
To: xen-devel
Hi,
I was wondering if it is theoretically possible to port an 386
emulator (bochs for instance) to Xen and run an unported OS on top of
that emulator. Does an emulator running on top of Xen have to
implement all device drivers itself or can it simply let the host
access the hardware immediately?
Regards,
Leen Toelen
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Running and 386 emulator on Xen
2005-07-01 6:39 Running and 386 emulator on Xen Leen Toelen
@ 2005-07-03 12:35 ` Mark Williamson
0 siblings, 0 replies; 2+ messages in thread
From: Mark Williamson @ 2005-07-03 12:35 UTC (permalink / raw)
To: xen-devel, Leen Toelen
> I was wondering if it is theoretically possible to port an 386
> emulator (bochs for instance) to Xen and run an unported OS on top of
> that emulator.
Yup. You'd probably want to use QEmu for speed. However, I'm not sure this
has any advantage over just running your chosen emulator in a guest Linux:
it's still emulating everything, so it'll still be slow.
> Does an emulator running on top of Xen have to
> implement all device drivers itself or can it simply let the host
> access the hardware immediately?
It'd have to emulate the device seen by it emulated guest but it could then
use a standard virtual device driver (as used by all guests) in order to
satisfy IO requests.
HTH,
Mark
^ permalink raw reply [flat|nested] 2+ messages in thread
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2005-07-01 6:39 Running and 386 emulator on Xen Leen Toelen
2005-07-03 12:35 ` Mark Williamson
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