WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-devel

Re: [Xen-devel] Re: PCI passthrough support via PV-PCI

Espen Skoglund, le Wed 02 Jul 2008 15:18:16 +0100, a écrit :
> [Samuel Thibault]
> > Keir Fraser, le Wed 02 Jul 2008 13:59:42 +0100, a écrit :
> >> Shouldn't they happen from xend or pciback?
> 
> > For PV guests it looks like something is done indeed, because else
> > it wouldn't work.  It is probably a matter of having domctl permit
> > the stub domain to transfer these rights to the HVM guest.
> 
> When I added VT-d support for PV guests I made xend do the device
> assignment iff the destination was a PV domain.  Is there any reason
> why device assignment can not be performed by xend for HVM guests as
> well?
> 
> Other resource assignment (IOMEM and IRQs) still seems to happen in
> xend for HVM guests as well as for PV guest.  What other domctls does
> ioemu need to perform?

ioemu needs to update the mappings, see the pt_iomem_map() function.

Samuel

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel