On Mon, Oct 02, 2023, Paul Durrant wrote: > From: Paul Durrant <pdurrant@xxxxxxxxxx> > > After a subsequent patch, the gpa may not always be set whereas khva will > (as long as the cache valid flag is also set). This holds true only because there are no users of KVM_GUEST_USES_PFN, and because hva_to_pfn_retry() rather oddly adds the offset to a NULL khva. I think it's time to admit using this to map PFNs into the guest is a bad idea and rip out KVM_GUEST_USES_PFN before fully relying on khva. https://lore.kernel.org/all/ZQiR8IpqOZrOpzHC@xxxxxxxxxx
