[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [BUNDLE] Testing a simpler inter-domain transport
> Thanks, just fiddling. It'll be interesting to see what > changes the PPC > guys will need for this. > > Cheers! > Rusty. (I'm sure you meant PPC *and* ia64 ;*) On just a quick skim, one thing to note: IIRC from the summit, domain0 and driver domains for neither PPC nor ia64 will have a p2m lookup table so a p2m translation will require a hypercall. So while virt_to_machine is cheap for domains on x86, it is not on PPC and ia64. If HYPERVISOR_share can take physical addresses instead of machine addresses (with Xen doing the phys_to_machine part of the translation), I think the code would work better for PPC and ia64, as well as better hide the virtual->physical->machine memory abstraction. Dan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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