> Contributed-by: ard.biesheu...@linaro.org, dong...@huawei.com > > This added an intrinsic for SHA3 using aarch64 v8.2 SHA3 Crypto Extensions. > Reference implementation for core SHA-3 transform using ARMv8.2 Crypto > Extensions: > https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tree/arch/arm64/crypto/sha3-ce-core.S?h=v5.4.52 > > Trivial adaptation in SHA3. implCompress is needed for the purpose of adding > the intrinsic. > For SHA3, we need to pass one extra parameter "digestLength" to the stub for > the calculation of block size. > "digestLength" is also used in for the EOR loop before keccak to > differentiate different SHA3 variants. > > We added jtreg tests for SHA3 and used QEMU system emulator which supports > SHA3 instructions to test the functionality. > Patch passed jtreg tier1-3 tests with QEMU system emulator. > Also verified with jtreg tier1-3 tests without SHA3 instructions on > aarch64-linux-gnu and x86_64-linux-gnu, to make sure that there's no > regression. > > We used one existing JMH test for performance test: > test/micro/org/openjdk/bench/java/security/MessageDigests.java > We measured the performance benefit with an aarch64 cycle-accurate simulator. > Patch delivers 20% - 40% performance improvement depending on specific SHA3 > digest length and size of the message. > > For now, this feature will not be enabled automatically for aarch64. We can > auto-enable this when it is fully tested on real hardware. But for the above > testing purposes, this is auto-enabled when the corresponding hardware > feature is detected.
Fei Yang has updated the pull request incrementally with one additional commit since the last revision: Add if (isJDK16OrHigher()) check for SHA3 in CheckGraalIntrinsics.java ------------- Changes: - all: https://git.openjdk.java.net/jdk/pull/207/files - new: https://git.openjdk.java.net/jdk/pull/207/files/d32c8ad7..b43f9197 Webrevs: - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=207&range=10 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=207&range=09-10 Stats: 4 lines in 1 file changed: 3 ins; 0 del; 1 mod Patch: https://git.openjdk.java.net/jdk/pull/207.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/207/head:pull/207 PR: https://git.openjdk.java.net/jdk/pull/207
