Messages in this thread | | | From | Heiko Stuebner <> | Subject | [PATCH RFC 00/12] RISC-V: support some cryptography accelerations | Date | Mon, 6 Feb 2023 23:58:34 +0100 |
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From: Heiko Stuebner <heiko.stuebner@vrull.eu>
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
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