[mdb-discuss] Reviews for '6737053 mdb should be able to debug HVM domain dumps'

[John Levon]

The changes are as follows:

- for HVM domains, read the page_nr->pfn section instead of the
  page_nr->{pfn,mfn} section used for PV
- fix a core dump if MFN is zero (previously not possible)
- xen_cr3_to_pfn() is PV-only

http://cr.opensolaris.org/~johnlev/mdb-kb-hvm/

thanks,
john