diff options
Diffstat (limited to 'target/linux/generic/backport-5.4/080-wireguard-0052-crypto-x86-curve25519-support-assemblers-with-no-adx.patch')
| -rw-r--r-- | target/linux/generic/backport-5.4/080-wireguard-0052-crypto-x86-curve25519-support-assemblers-with-no-adx.patch | 84 |
1 files changed, 0 insertions, 84 deletions
diff --git a/target/linux/generic/backport-5.4/080-wireguard-0052-crypto-x86-curve25519-support-assemblers-with-no-adx.patch b/target/linux/generic/backport-5.4/080-wireguard-0052-crypto-x86-curve25519-support-assemblers-with-no-adx.patch deleted file mode 100644 index cd507b1e44..0000000000 --- a/target/linux/generic/backport-5.4/080-wireguard-0052-crypto-x86-curve25519-support-assemblers-with-no-adx.patch +++ /dev/null @@ -1,84 +0,0 @@ -From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 -From: "Jason A. Donenfeld" <Jason@zx2c4.com> -Date: Sun, 1 Mar 2020 22:52:35 +0800 -Subject: [PATCH] crypto: x86/curve25519 - support assemblers with no adx - support - -commit 1579f1bc3b753d17a44de3457d5c6f4a5b14c752 upstream. - -Some older version of GAS do not support the ADX instructions, similarly -to how they also don't support AVX and such. This commit adds the same -build-time detection mechanisms we use for AVX and others for ADX, and -then makes sure that the curve25519 library dispatcher calls the right -functions. - -Reported-by: Willy Tarreau <w@1wt.eu> -Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> -Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> -Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> ---- - arch/x86/Makefile | 5 +++-- - arch/x86/crypto/Makefile | 7 ++++++- - include/crypto/curve25519.h | 6 ++++-- - 3 files changed, 13 insertions(+), 5 deletions(-) - ---- a/arch/x86/Makefile -+++ b/arch/x86/Makefile -@@ -198,9 +198,10 @@ avx2_instr :=$(call as-instr,vpbroadcast - avx512_instr :=$(call as-instr,vpmovm2b %k1$(comma)%zmm5,-DCONFIG_AS_AVX512=1) - sha1_ni_instr :=$(call as-instr,sha1msg1 %xmm0$(comma)%xmm1,-DCONFIG_AS_SHA1_NI=1) - sha256_ni_instr :=$(call as-instr,sha256msg1 %xmm0$(comma)%xmm1,-DCONFIG_AS_SHA256_NI=1) -+adx_instr := $(call as-instr,adox %r10$(comma)%r10,-DCONFIG_AS_ADX=1) - --KBUILD_AFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) $(asinstr) $(avx_instr) $(avx2_instr) $(avx512_instr) $(sha1_ni_instr) $(sha256_ni_instr) --KBUILD_CFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) $(asinstr) $(avx_instr) $(avx2_instr) $(avx512_instr) $(sha1_ni_instr) $(sha256_ni_instr) -+KBUILD_AFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) $(asinstr) $(avx_instr) $(avx2_instr) $(avx512_instr) $(sha1_ni_instr) $(sha256_ni_instr) $(adx_instr) -+KBUILD_CFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) $(asinstr) $(avx_instr) $(avx2_instr) $(avx512_instr) $(sha1_ni_instr) $(sha256_ni_instr) $(adx_instr) - - KBUILD_LDFLAGS := -m elf_$(UTS_MACHINE) - ---- a/arch/x86/crypto/Makefile -+++ b/arch/x86/crypto/Makefile -@@ -11,6 +11,7 @@ avx2_supported := $(call as-instr,vpgath - avx512_supported :=$(call as-instr,vpmovm2b %k1$(comma)%zmm5,yes,no) - sha1_ni_supported :=$(call as-instr,sha1msg1 %xmm0$(comma)%xmm1,yes,no) - sha256_ni_supported :=$(call as-instr,sha256msg1 %xmm0$(comma)%xmm1,yes,no) -+adx_supported := $(call as-instr,adox %r10$(comma)%r10,yes,no) - - obj-$(CONFIG_CRYPTO_GLUE_HELPER_X86) += glue_helper.o - -@@ -39,7 +40,11 @@ obj-$(CONFIG_CRYPTO_AEGIS128_AESNI_SSE2) - - obj-$(CONFIG_CRYPTO_NHPOLY1305_SSE2) += nhpoly1305-sse2.o - obj-$(CONFIG_CRYPTO_NHPOLY1305_AVX2) += nhpoly1305-avx2.o --obj-$(CONFIG_CRYPTO_CURVE25519_X86) += curve25519-x86_64.o -+ -+# These modules require the assembler to support ADX. -+ifeq ($(adx_supported),yes) -+ obj-$(CONFIG_CRYPTO_CURVE25519_X86) += curve25519-x86_64.o -+endif - - # These modules require assembler to support AVX. - ifeq ($(avx_supported),yes) ---- a/include/crypto/curve25519.h -+++ b/include/crypto/curve25519.h -@@ -33,7 +33,8 @@ bool __must_check curve25519(u8 mypublic - const u8 secret[CURVE25519_KEY_SIZE], - const u8 basepoint[CURVE25519_KEY_SIZE]) - { -- if (IS_ENABLED(CONFIG_CRYPTO_ARCH_HAVE_LIB_CURVE25519)) -+ if (IS_ENABLED(CONFIG_CRYPTO_ARCH_HAVE_LIB_CURVE25519) && -+ (!IS_ENABLED(CONFIG_CRYPTO_CURVE25519_X86) || IS_ENABLED(CONFIG_AS_ADX))) - curve25519_arch(mypublic, secret, basepoint); - else - curve25519_generic(mypublic, secret, basepoint); -@@ -49,7 +50,8 @@ __must_check curve25519_generate_public( - CURVE25519_KEY_SIZE))) - return false; - -- if (IS_ENABLED(CONFIG_CRYPTO_ARCH_HAVE_LIB_CURVE25519)) -+ if (IS_ENABLED(CONFIG_CRYPTO_ARCH_HAVE_LIB_CURVE25519) && -+ (!IS_ENABLED(CONFIG_CRYPTO_CURVE25519_X86) || IS_ENABLED(CONFIG_AS_ADX))) - curve25519_base_arch(pub, secret); - else - curve25519_generic(pub, secret, curve25519_base_point); |