stage2_pgdir_size 37 arch/arm64/include/asm/stage2_pgtable.h #define stage2_pgdir_mask(kvm) ~(stage2_pgdir_size(kvm) - 1) stage2_pgdir_size 228 arch/arm64/include/asm/stage2_pgtable.h phys_addr_t boundary = (addr + stage2_pgdir_size(kvm)) & stage2_pgdir_mask(kvm);