[Xen-devel] [PATCH v6 10/34] x86, x86/mm, x86/xen, olpc: Use __va() against just the physical address in cr3

[Boris Ostrovsky]

>>
>> PV guests don't go through Linux x86 early boot code. They start at
>> xen_start_kernel() (well, xen-head.S:startup_xen(), really) and  merge
>> with baremetal path at x86_64_start_reservations() (for 64-bit).
>>
>
> Ok, I don't think anything needs to be done then. The sme_me_mask is set
> in sme_enable() which is only called from head_64.S. If the sme_me_mask
> isn't set then SME won't be active. The feature will just report the
> capability of the processor, but that doesn't mean it is active. If you
> still want the feature to be clobbered we can do that, though.

I'd prefer to explicitly clear to avoid any ambiguity.

-boris