powerpc: Program HPTE key protection bits
Map the PTE protection key bits to the HPTE key protection bits, while creating HPTE entries. Acked-by: NBalbir Singh <bsingharora@gmail.com> Signed-off-by: NRam Pai <linuxram@us.ibm.com> Signed-off-by: NMichael Ellerman <mpe@ellerman.id.au>
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