On Wed, Nov 06, 2019 at 01:52:39PM +0530, Bharata B Rao wrote: > > However, since kvmppc_gfn_is_uvmem_pfn() returned true, doesn't that > > mean that pfn here should be a device pfn, and in fact should be the > > same as uvmem_pfn (possibly with some extra bit(s) set)? > > If secure page is being converted to share, pfn will be uvmem_pfn (device > pfn).
Also, kvmppc_gfn_is_uvmem_pfn() needn't always return true. It returns true only for secure pages, while this routine handles sharing of both secure and normal pages. Regards, Bharata.
