PKVM_ID_HOST
WARN_ON(host_stage2_set_owner_locked(phys, size, PKVM_ID_HOST));
WARN_ON(host_stage2_set_owner_locked(phys, PAGE_SIZE, PKVM_ID_HOST));
WARN_ON(host_stage2_set_owner_locked(phys, PAGE_SIZE, PKVM_ID_HOST));
if (owner_id == PKVM_ID_HOST)
case PKVM_ID_HOST: