Re: [PATCHv5 07/19] x86/mm: Mask out KeyID bits from page table entry pfn

[Dave Hansen]

On 07/17/2018 04:20 AM, Kirill A. Shutemov wrote:
> +	} else {
> +		/*
> +		 * Reset __PHYSICAL_MASK.
> +		 * Maybe needed if there's inconsistent configuation
> +		 * between CPUs.
> +		 */
> +		physical_mask = (1ULL << __PHYSICAL_MASK_SHIFT) - 1;
> +	}

This seems like an appropriate place for a WARN_ON().  Either that, or
axe this code.