[Xen-devel] No P2M mapping == pagetype == XEN_DOMCTL_PFINFO_XTAB?

["Mike Sun" <msun@xxxxxxxxxx>]

For an HVM domain, if a given pfn has a pagetype of
XEN_DOMCTL_PFINFO_XTAB as returned by xc_map_foreign_batch(), does
this mean that pfn is not not in the HVM guest's pseudo-physical
map/have a valid P2M entry?

I'm having difficulty understanding page types for HVM domains.  If a
pfn for an HVM domain is of the type XEN_DOMCTL_PFINFO_XTAB, can it
later become a valid page?  And what about the reverse case?

Any help would be much appreciated, thanks,
Mike

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