[Libvir] [PATCH] Add Xen Scheduler APIs to xenDaemonDriver

Daniel Veillard veillard at redhat.com
Mon Mar 24 13:15:12 UTC 2008

On Mon, Mar 24, 2008 at 07:37:51PM +0900, Saori Fukuta wrote:
> Thank you for applying it. I will try "syntax-check" next time.

 thanks :-)

> >   However, i don't see why it is needed, basically when running with Xen
> > as root, the hypervisor access should be used, not xend, so this seems to
> > indicate that you have problem using the hypervisor calls and that's probably
> > something to worry about. But it's fine having a more complete xend driver
> > surrport.
> Yes, the hypervisor access should be used for root user.
> But if a domain is inactive, we cannot see/set the scheduler parameters 

  hum, right i forgot the inactive domain problem.

> with visrh command even though xm command can do it since we cannot 
> access to the hypervisor.
> And also, we cannot allow to see the scheduler parameters for user who 
> connect with read-only for the same reason.

 Well read-only should still connect to the daemon, at least to read the
status, the proxy mode should be deprecated, except for older setups.

> For such case, I thought we needed the patch to access with Xend driver.

  Okay, understood. But we have been bitten with the hypervisor being broken
with xen-3.2 and not realizing it because things were done (in a far more
expensive way) via xend.


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Daniel Veillard      | virtualization library  http://libvirt.org/
veillard at redhat.com  | libxml GNOME XML XSLT toolkit  http://xmlsoft.org/
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