Re: [PATCH v6 04/18] arm64: Add a helper for PARange to physical shift conversion

[Catalin Marinas]

On Wed, Sep 26, 2018 at 05:32:40PM +0100, Suzuki K. Poulose wrote:
> On arm64, ID_AA64MMFR0_EL1.PARange encodes the maximum Physical
> Address range supported by the CPU. Add a helper to decode this
> to actual physical shift. If we hit an unallocated value, return
> the maximum range supported by the kernel.
> This will be used by KVM to set the VTCR_EL2.T0SZ, as it
> is about to move its place. Having this helper keeps the code
> movement cleaner.
> 
> Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
> Cc: Marc Zyngier <marc.zyngier@xxxxxxx>
> Cc: James Morse <james.morse@xxxxxxx>
> Cc: Christoffer Dall <cdall@xxxxxxxxxx>
> Reviewed-by: Eric Auger <eric.auger@xxxxxxxxxx>
> Signed-off-by: Suzuki K Poulose <suzuki.poulose@xxxxxxx>

Acked-by: Catalin Marinas <catalin.marinas@xxxxxxx>