On Thu, Aug 29, 2024 at 10:33:46AM +0200, Hans-Jörg Höxer wrote:
> Hi,
>
> On Thu, Aug 29, 2024 at 12:07:57PM +1000, Jonathan Gray wrote:
> > > ...
> > > +++ b/share/man/man4/ccp.4
> > > @@ -33,6 +33,12 @@ The
> > >  .Nm
> > >  driver supports feeding output of the random number generator into
> > >  the kernel entropy pool.
> > > +.Pp
> > > +On AMD EPYC processors
> >
> > this line could be "On amd64" as the ioctls aren't only reachable on EPYC
> >
> > even SEV doesn't appear to be EPYC only?
>
> yes, you're right!  Updated diff below.
>

ok mlarkin

> --------------------------------------------------------------------------
> commit 5919499a4b3027e341ea71a49d9b342cd66c7d5c
> Author: Hans-Joerg Hoexer <hshoexer@genua.de>
> Date:   Wed Aug 28 12:49:21 2024 +0200
>
>     ccp(4): mention PSP in ccp.4
>
> diff --git a/share/man/man4/ccp.4 b/share/man/man4/ccp.4
> index 942312f8bcd..4f300b1e811 100644
> --- a/share/man/man4/ccp.4
> +++ b/share/man/man4/ccp.4
> @@ -33,6 +33,12 @@ The
>  .Nm
>  driver supports feeding output of the random number generator into
>  the kernel entropy pool.
> +.Pp
> +On amd64
> +.Nm
> +provides
> +.Xr ioctl 2
> +access to the platform security processor (PSP).
>  .Sh SEE ALSO
>  .Xr intro 4 ,
>  .Xr random 4 ,
> @@ -48,3 +54,5 @@ The
>  .Nm
>  driver was written by
>  .An David Gwynne Aq Mt dlg@openbsd.org .
> +PSP support was implemented by
> +.An Hans-Joerg Hoexer Aq Mt hshoexer@genua.de .