openbsd/src/lib/libcrypto/arch/amd64/crypto_cpu_caps.c, branch OPENBSD_7_9A mirror of https://github.com/libressl/openbsd.git
https://git.lua4.win/openbsd/atom?h=OPENBSD_7_92025-08-14T15:11:01+00:00Add CPU feature detection for ADX on amd64.2025-08-14T15:11:01+00:00jsing2025-08-14T15:11:01+00:00urn:sha1:d31d4089b9ae677123f49cc1b071b80207baf184
Add detection of Multi-Precision Add-Carry Instruction Extensions on amd64.
s2n-bignum provides a number of fast multiplication routines that can
leverage these instructions.
ok tb@
Remove crypto_cpu_caps_ia32()2025-07-22T09:18:02+00:00jsing2025-07-22T09:18:02+00:00urn:sha1:cbc4928ebdbd9c244a1c0e3c2e90497a0d246b38
There are no more consumers of crypto_cpu_caps_ia32(), so remove it.
ok bcook@ joshua@ tb@
Add CLMUL to machine dependent CPU capabilities for amd64.2025-06-28T12:20:39+00:00jsing2025-06-28T12:20:39+00:00urn:sha1:c534647b2ec7521ee4210dd398faaad0018287d0
ok tb@
Provide CRYPTO_CPU_CAPS_AMD64_AES in machine dependent CPU capabilities.2025-06-15T14:16:11+00:00jsing2025-06-15T14:16:11+00:00urn:sha1:00556dbdb2a0ef259141c777042dfb7562f0b7c5
ok tb@
Add CPU capability detection for the Intel SHA extensions (aka SHA-NI).2024-11-16T13:05:35+00:00jsing2024-11-16T13:05:35+00:00urn:sha1:d5d56fc45a9988f5488f0a2804155ccc5067def3
This also provides a crypto_cpu_caps_amd64 variable that can be checked
for CRYPTO_CPU_CAPS_AMD64_SHA.
ok tb@
Check the correct variable in cpuid().2024-11-12T13:14:57+00:00jsing2024-11-12T13:14:57+00:00urn:sha1:e5a8d62d4380136d1e13d26d8b9b2462456b96a7Remove IA32 specific code from cryptlib.c.2024-10-19T13:06:11+00:00jsing2024-10-19T13:06:11+00:00urn:sha1:5d1b4ec04e3e4da6a278a481334cacf007acd117
Move the IA32 specific code to arch/{amd64,i386}/crypto_cpu_caps.c, rather
than polluting cryptlib.c with machine dependent code. A stub version of
crypto_cpu_caps_ia32() still remains for now.
Provide crypto_cpu_caps_init() for amd64.2024-10-18T13:36:24+00:00jsing2024-10-18T13:36:24+00:00urn:sha1:8ca2cf944a22a441df7aea76d387ae44564b6b72
This is a CPU capability detection implementation in C, with minimal
inline assembly (for cpuid and xgetbv). This replaces the assembly
mess generated by x86_64cpuid.pl. Rather than populating OPENSSL_ia32cap_P
directly with CPUID output, just set the bits that the remaining
perlasm checks (namely AESNI, AVX, FXSR, INTEL, HT, MMX, PCLMUL, SSE, SSE2
and SSSE3).
ok joshua@ tb@