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Subject[PATCH RFC 00/12] RISC-V: support some cryptography accelerations
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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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