On Thu, Sep 07, 2017 at 06:33:09PM +0000, Ralph Campbell wrote:
> > --- a/Documentation/admin-guide/kernel-parameters.txt
> > +++ b/Documentation/admin-guide/kernel-parameters.txt
> > @@ -2736,6 +2736,8 @@
> > 
> >     nox2apic        [X86-64,APIC] Do not enable x2APIC mode.
> > 
> > +   noxpfo          [X86-64] Disable XPFO when CONFIG_XPFO is on.
> > +
> >     cpu0_hotplug    [X86] Turn on CPU0 hotplug feature when
> >                     CONFIG_BOOTPARAM_HOTPLUG_CPU0 is off.
> >                     Some features depend on CPU0. Known dependencies
> <... snip>
> 
> A bit more description for system administrators would be very useful.
> Perhaps something like:
> 
> noxpfo                [XPFO,X86-64] Disable eXclusive Page Frame Ownership 
> (XPFO)
>                              Physical pages mapped into user applications 
> will also be mapped
>                              in the kernel's address space as if CONFIG_XPFO 
> was not enabled.
> 
> Patch 05 should also update kernel-parameters.txt and add "ARM64" to the 
> config option list for noxpfo.

Nice catch, thanks. I'll fix both.

Cheers,

Tycho

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