Re: [PATCH/RFC 4/9] Basic guest virtual devices infrastructure

Avi Kivity
2007-05-14T11:26:11Z

Carsten Otte wrote:
> From: Carsten Otte <cotte-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>
>
> This patch adds support for a new bus type that manages paravirtualized
> devices. The bus uses the s390 diagnose instruction to query devices, and
> match them with the corresponding drivers.
> Future enhancements should include hotplug and hotremoval of virtual devices
> triggered by the host, and supend/resume of virtual devices for migration.
>
>

Interesting. We could use a variation this for x86 as well, but I'm not
sure how easy it is to integrate it into closed source OSes (Windows).
The diag instruction could be replaced by a hypercall which would make
the code generic.

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