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Re: [Xen-devel] (v2) Design proposal for RMRR fix

>>> On 19.01.15 at 13:23, <tim@xxxxxxx> wrote:
> At 11:41 +0000 on 19 Jan (1421664109), Jan Beulich wrote:
>> >>> On 19.01.15 at 12:33, <tim@xxxxxxx> wrote:
>> > FWIW, I don't like adding hypervisor state (and even more so
>> > hypervisor mechanism like a new hypercall) for things that the
>> > hypervisor doesn't need to know about.  Since the e820 is only shared
>> > between the tools and the guest, I'd prefer it to go in either
>> > the hvm_info_table or xenstore.
>> But we have the guest E820 in the hypervisor already, which we
>> also can't drop (as XENMEM_memory_map is a generally accessible
>> hypercall).
> So we do. :(  What is the difference between that (with appropriate
> reserved regions in the map) and the proposed new hypercall?

The proposed new hypercall represents _only_ reserved regions.
But it was said several times that making the existing one work
for HVM (and then fit the purposes here) is at least an option
worth investigating.


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