Re: [PATCH 3/6] x86/sev-es: Use __put_user()/__get_user
From: 'Joerg Roedel' <joro@8bytes.org>
Date: 2021-05-12 08:50:47
Also in:
kvm, linux-coco, lkml, stable
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 _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization