RE: [Xen-ia64-devel] RE: [Xen-devel] [PATCH] blkif include fixes

["Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>]

> What we have not figured out is, how to handle the case where 
> the netfront driver tries to transfer the ownership of a page 
> to another domain. It does this by writing to the 
> phys_to_machine_mapping[] array.
> 
> While we can easily map the phys_to_machine table into a VMX 
> guest, it's not clear that:
> a) allowing the guest to modify it is safe

For translate shadow mode guests we need to do the p2m update in Xen in
the gnttab hypercalls.

Ian


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