On Mon, Jun 08, 2026 at 04:26:18PM +0200, David Hildenbrand (Arm) wrote: > If that means that we would handle __GFP_ZERO consistently in the callers of > alloc_frozen_pages(), that would also do I guess. We'd still have to pass the > user address down to some degree, through folio interfaces only at least.
What I don't understand is how the kernel page allocator needs to know the user address in order to effectively zero it, but the hypervisor is able to zero the page without knowing the user address. It feels like somebody has x86-centric thinking where cache colouring doesn't matter.
