Re: [PATCH 3/6] x86/sev-es: Use __put_user()/__get_user

['Joerg Roedel']

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