Re: CVS commit: src/sys/arch

[Christian Limpach <chris%pin.lu@localhost>]

Quoting Daniel Carosone <dan%geek.com.au@localhost>:

> On Fri, Mar 12, 2004 at 03:41:26AM +0100, Hubert Feyrer wrote:
> > Is there a chance to get Xen running with NetBSD as the host system?
> 
> The question is (almost) meaningless [...]
> The closest it comes to having a full OS as a "host" is that there are
> some guests (by default, the one running in domain0) that are
> privileged and can run some userspace admin tools (to create and start
> new domains, set and monitor resource usage, etc).

exactly.

> I don't know much about it, but I imagine there'd be no particular
> problem building these tools on NetBSD.  Do they need any special
> support from the guest os in domain0, such as special syscalls to pass
> through to Xen?

On Linux the interface is a single ioctl, which fills the registers from the
ioctl's argument and then traps to Xen.  It's quite straight forward to add
but using NetBSD as domain0 is awkward without a block device driver.

-- 
Christian Limpach <chris%pin.lu@localhost>