[Xen-devel] Other PCI devices to mark mark as read-only for dom0

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

Following Jan's infrastructure to mark certain PCI devices as read only,
I think it wise to now consider what other PCI devices should really be
read only to dom0.

My preliminary thoughts include:

* PCI serial devices which Xen is configured to use
* Chipset devices (AMD IOMMU covered by previous patch)
* Cpu information

Are there any others I have overlooked, or reasons that dom0 should be
able to write to these areas?

On a related note, should there be a mechanism for dom0 to determine
which PCI configuration areas are read only to itself?

-- 
Andrew Cooper - Dom0 Kernel Engineer, Citrix XenServer
T: +44 (0)1223 225 900, http://www.citrix.com


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