[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] No P2M mapping == pagetype == XEN_DOMCTL_PFINFO_XTAB?
If the top nibble is set (i.e, XEN_..._XTAB) then indeed there is no memory page at that pseudophysical address. It could become populated later (by XENMEM_populate_physmap for example). -- Keir On 29/9/08 18:35, "Mike Sun" <msun@xxxxxxxxxx> wrote: > 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 > > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxxxxxxxx > http://lists.xensource.com/xen-devel _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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