On Tue, 2024-05-14 at 17:59 -0700, Rick Edgecombe wrote: > > For lack of a better method currently, use kvm_gfn_shared_mask() to > determine if private memory cannot be zapped (as in TDX, the only VM type > that sets it). Trying to replace kvm_gfn_shared_mask() with something appropriate, I saw that SNP actually uses this function: https://lore.kernel.org/kvm/20240501085210.2213060-12-michael.roth@xxxxxxx/ So trying to have a helper that says "The VM can't zap and refault in memory at will" won't cut it. I guess there would have to be some more specific. I'm thinking to just drop this patch instead.