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>
