Linux/aarch64 supports vairous page size configuration. (From https://www.kernel.org/doc/Documentation/arm64/memory.txt) - 4KB + 3 levels - 4KB + 4 levels - 64KB + 2 leves So we shouldn't set fixed 64KB page size on aarch64. MozReview-Commit-ID: 8IdwBMUW4me