Re: [Xen-devel] [v7][RFC][PATCH 06/13] hvmloader/ram: check if guest memory is out of reserved device memory maps

["Jan Beulich" <jbeulich@xxxxxxxx>]

>>> "Chen, Tiejun" <tiejun.chen@xxxxxxxxx> 11/05/14 3:59 AM >>>

Everything up to here sounded reasonable.

>Next, we need a new domctl to provide these info, 'pci_rdmforce' and 
>'rdm_force' when parse the config file. Certainly we may need to 
>introduce and set two new fields in strcut domain, and since then we 
>just use these fields to modify our current existing iommu callback 
>inside to support our policy. I mean we just expose those associated 
>RMRR entry. I think its easy to implement this since inside Xen we can 
>know which entry is owned by which device. So this can benefit us to 
>avoid modifying any tools codes and most Xen codes we already addressed.

Whether a domctl is the right approach I can't really tell with this
somewhat vague description.

Jan


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