On Wed, May 12, 2021 at 10:16:12AM +0200, Juergen Gross wrote: > You want something like xen_safe_[read|write]_ulong(). >From a first glance I can't see it, what is the difference between the xen_safe_*_ulong() functions and __get_user()/__put_user()? The only difference I can see is that __get/__put_user() support different access sizes, but neither of those disables page-faults by itself, for example. Couldn't these xen-specific functions not also be replaces by __get_user()/__put_user()? Regards, Joerg
