PatchTrack

From: Heiko Stuebner <heiko.stuebner@...> Date: Mon, 6 Feb 2023 22:24:22 +0100

So this was my playground the last days. The base is v13 of the vector patchset but the first patches up to doing the Zbc-based GCM GHash can also run without those. Of course the vector- crypto extensions are also not ratified yet, hence the marking as RFC. As v13 of the vector patchset dropped the patches for in-kernel usage of vector instructions, I picked the ones from v12 over into this series for now. My basic goal was to not re-invent cryptographic code, so the heavy lifting is done by those perl-asm scripts used in openssl and the perl code used here-in stems from code that is targetted at openssl [0] and is unmodified from there to limit needed review effort. With a matching qemu (there are patches for vector-crypto flying around) the in-kernel crypto-selftests (also the extended ones) are very happy so far. Things to do: - The series still includes its own Zbb extension detection, I'll need to untangle my branches to adapt to the applied Zbb patchset [and address Andrews comments] - use correct Co-developed-attribution for the code coming from openssl - some more cryptographic algorithms (aes, sha512, sm3, sm4) [0] both still open https://github.com/openssl/openssl/pull/20078 https://github.com/openssl/openssl/pull/20149 Greentime Hu (2): riscv: Add support for kernel mode vector riscv: Add vector extension XOR implementation Heiko Stuebner (10): RISC-V: add Zbb extension detection RISC-V: add Zbc extension detection RISC-V: add Zbkb extension detection RISC-V: hook new crypto subdir into build-system RISC-V: crypto: add accelerated GCM GHASH implementation RISC-V: add vector crypto extension detection RISC-V: crypto: update perl include with helpers for vector (crypto) instructions RISC-V: crypto: add Zvkb accelerated GCM GHASH implementation RISC-V: crypto: add Zvkg accelerated GCM GHASH implementation RISC-V: crypto: add a vector-crypto-accelerated SHA256 implementation arch/riscv/Kbuild | 1 + arch/riscv/Kconfig | 45 ++ arch/riscv/crypto/Kconfig | 28 + arch/riscv/crypto/Makefile | 34 + arch/riscv/crypto/ghash-riscv64-glue.c | 489 ++++++++++++++ arch/riscv/crypto/ghash-riscv64-zbc.pl | 400 ++++++++++++ arch/riscv/crypto/ghash-riscv64-zvkb.pl | 346 ++++++++++ arch/riscv/crypto/ghash-riscv64-zvkg.pl | 172 +++++ arch/riscv/crypto/riscv.pm | 723 +++++++++++++++++++++ arch/riscv/crypto/sha256-riscv64-glue.c | 103 +++ arch/riscv/crypto/sha256-riscv64-zvknha.pl | 502 ++++++++++++++ arch/riscv/include/asm/hwcap.h | 7 + arch/riscv/include/asm/vector.h | 14 + arch/riscv/include/asm/xor.h | 82 +++ arch/riscv/kernel/Makefile | 1 + arch/riscv/kernel/cpu.c | 7 + arch/riscv/kernel/cpufeature.c | 7 + arch/riscv/kernel/kernel_mode_vector.c | 132 ++++ arch/riscv/lib/Makefile | 1 + arch/riscv/lib/xor.S | 81 +++ crypto/Kconfig | 3 + 21 files changed, 3178 insertions(+) create mode 100644 arch/riscv/crypto/Kconfig create mode 100644 arch/riscv/crypto/Makefile create mode 100644 arch/riscv/crypto/ghash-riscv64-glue.c create mode 100644 arch/riscv/crypto/ghash-riscv64-zbc.pl create mode 100644 arch/riscv/crypto/ghash-riscv64-zvkb.pl create mode 100644 arch/riscv/crypto/ghash-riscv64-zvkg.pl create mode 100644 arch/riscv/crypto/riscv.pm create mode 100644 arch/riscv/crypto/sha256-riscv64-glue.c create mode 100644 arch/riscv/crypto/sha256-riscv64-zvknha.pl create mode 100644 arch/riscv/include/asm/xor.h create mode 100644 arch/riscv/kernel/kernel_mode_vector.c create mode 100644 arch/riscv/lib/xor.S -- 2.39.0

Patches in this set

• [0001] riscv: Add support for kernel mode vector (raw)
• [0002] riscv: Add vector extension XOR implementation (raw)
• [0003] RISC-V: add Zbb extension detection (raw)
• [0004] RISC-V: add Zbc extension detection (raw)
• [0005] RISC-V: add Zbkb extension detection (raw)
• [0006] RISC-V: hook new crypto subdir into build-system (raw)
• [0007] RISC-V: crypto: add accelerated GCM GHASH (raw)
• [0008] RISC-V: add vector crypto extension detection (raw)
• [0009] RISC-V: crypto: update perl include with helpers for (raw)
• [0010] RISC-V: crypto: add Zvkb accelerated GCM GHASH (raw)
• [0011] RISC-V: crypto: add Zvkg accelerated GCM GHASH (raw)
• [0012] RISC-V: crypto: add a vector-crypto-accelerated SHA256 (raw)

Statistics

• 12 individual patches
• 3182 lines added
• 4 lines removed