Experimental support for Intel and ARM ASM with Zephyr. Related to issue #7116.

Author: dgarske

zephyr/CMakeLists.txt

@@ -128,6 +128,37 @@ if(CONFIG_WOLFSSL)
     zephyr_library_sources(${ZEPHYR_CURRENT_MODULE_DIR}/wolfcrypt/src/port/psa/psa_pkcbs.c)
     zephyr_library_sources(${ZEPHYR_CURRENT_MODULE_DIR}/wolfcrypt/src/port/st/stm32.c)
 
+    if(CONFIG_WOLFCRYPT_ARMASM)
+      # tested with board: "qemu_kvm_arm64"
+      zephyr_library_sources(${ZEPHYR_CURRENT_MODULE_DIR}/wolfcrypt/src/port/arm/armv8-aes.c)
+      zephyr_library_sources(${ZEPHYR_CURRENT_MODULE_DIR}/wolfcrypt/src/port/arm/armv8-32-aes-asm_c.c)
+      zephyr_library_sources(${ZEPHYR_CURRENT_MODULE_DIR}/wolfcrypt/src/port/arm/armv8-sha256.c)
+      zephyr_library_sources(${ZEPHYR_CURRENT_MODULE_DIR}/wolfcrypt/src/port/arm/armv8-32-sha256-asm_c.c)
+      zephyr_library_sources(${ZEPHYR_CURRENT_MODULE_DIR}/wolfcrypt/src/port/arm/armv8-sha512.c)
+      zephyr_library_sources(${ZEPHYR_CURRENT_MODULE_DIR}/wolfcrypt/src/port/arm/armv8-sha512-asm_c.c)
+      zephyr_library_sources(${ZEPHYR_CURRENT_MODULE_DIR}/wolfcrypt/src/port/arm/armv8-sha3-asm_c.c)
+      zephyr_library_sources(${ZEPHYR_CURRENT_MODULE_DIR}/wolfcrypt/src/port/arm/armv8-poly1305.c)
+      zephyr_library_sources(${ZEPHYR_CURRENT_MODULE_DIR}/wolfcrypt/src/port/arm/armv8-chacha.c)
+      zephyr_library_sources(${ZEPHYR_CURRENT_MODULE_DIR}/wolfcrypt/src/port/arm/armv8-curve25519_c.c)
+
+      set(MCPU_FLAGS "-mcpu=cortex-a53+crypto -mstrict-align")
+      #set(MCPU_FLAGS "-mcpu=generic+crypto -mstrict-align")
+    endif()
+
+    if(CONFIG_WOLFCRYPT_INTELASM)
+      # tested with board: "qemu_x86_64"
+      zephyr_library_sources(${ZEPHYR_CURRENT_MODULE_DIR}/wolfcrypt/src/sha256_asm.S)
+      zephyr_library_sources(${ZEPHYR_CURRENT_MODULE_DIR}/wolfcrypt/src/sha512_asm.S)
+      zephyr_library_sources(${ZEPHYR_CURRENT_MODULE_DIR}/wolfcrypt/src/sha3_asm.S)
+      zephyr_library_sources(${ZEPHYR_CURRENT_MODULE_DIR}/wolfcrypt/src/chacha_asm.S)
+      zephyr_library_sources(${ZEPHYR_CURRENT_MODULE_DIR}/wolfcrypt/src/poly1305_asm.S)
+
+      # issues with aesni
+      #zephyr_library_sources(${ZEPHYR_CURRENT_MODULE_DIR}/wolfcrypt/src/aes_asm.S)
+      #zephyr_library_sources(${ZEPHYR_CURRENT_MODULE_DIR}/wolfcrypt/src/aes_gcm_x86_asm.S)
+      #set(MCPU_FLAGS "-march=native -maes -msse4 -mpclmul ")
+    endif()
+
     zephyr_library_link_libraries(wolfSSL)
 
   	target_compile_definitions(wolfSSL INTERFACE WOLFSSL_ZEPHYR)

zephyr/Kconfig

@@ -70,6 +70,19 @@ config WOLFCRYPT_FIPS
 	  Enables FIPS support in wolfCrypt. Requires the wolfSSL FIPS ready
 	  download that includes fips.c/fips_test.c.
 
+config WOLFCRYPT_ARMASM
+	bool "wolfCrypt ARM Assembly support"
+	depends on WOLFSSL_BUILTIN
+	help
+	  wolfCrypt ARM (ARMv8/ARMv7) assembly support for AES, SHA-2, SHA-3,
+	  ChaCha20/Poly1305 and Curve25519
+
+config WOLFCRYPT_INTELASM
+	bool "wolfCrypt Intel Assembly support"
+	depends on WOLFSSL_BUILTIN
+	help
+	  wolfCrypt Intel Aassembly support (AVX/AVX2/AESNI)
+
 config WOLFSSL_DEBUG
 	bool "wolfSSL debug activation"
 	depends on WOLFSSL_BUILTIN

zephyr/samples/wolfssl_benchmark/prj.conf

@@ -26,6 +26,10 @@ CONFIG_LOG_BUFFER_SIZE=15360
 #CONFIG_WOLFSSL_DEBUG=y
 
 # Entropy
+CONFIG_TEST_RANDOM_GENERATOR=y
 CONFIG_ENTROPY_GENERATOR=y
 CONFIG_ENTROPY_DEVICE_RANDOM_GENERATOR=y
 
+# Optional ARM or Intel Assembly
+#CONFIG_WOLFCRYPT_ARMASM=y
+#CONFIG_WOLFCRYPT_INTELASM=y

zephyr/samples/wolfssl_test/prj.conf

@@ -24,6 +24,6 @@ CONFIG_LOG_BUFFER_SIZE=15360
 #CONFIG_WOLFSSL_DEBUG=y
 
 # Entropy
+CONFIG_TEST_RANDOM_GENERATOR=y
 CONFIG_ENTROPY_GENERATOR=y
 CONFIG_ENTROPY_DEVICE_RANDOM_GENERATOR=y
-

zephyr/samples/wolfssl_tls_thread/prj.conf

@@ -1,6 +1,7 @@
 # Kernel options
 CONFIG_MAIN_STACK_SIZE=16384
 CONFIG_ENTROPY_GENERATOR=y
+CONFIG_TEST_RANDOM_GENERATOR=y
 CONFIG_INIT_STACKS=y
 CONFIG_COMMON_LIBC_MALLOC_ARENA_SIZE=65536
 

zephyr/user_settings.h

@@ -380,6 +380,33 @@ extern "C" {
     #endif
 #endif
 
+/* ------------------------------------------------------------------------- */
+/* Assembly Speedups for Symmetric Algorithms */
+/* ------------------------------------------------------------------------- */
+
+#ifdef CONFIG_WOLFCRYPT_ARMASM
+    #define WOLFSSL_ARMASM
+    #define WOLFSSL_NO_HASH_RAW
+    #define WOLFSSL_ARMASM_INLINE /* use inline .c versions */
+    #define WOLFSSL_ARMASM_NO_HW_CRYPTO /* enable if processor does not support aes/sha instructions */
+    #define WOLFSSL_ARMASM_NO_NEON
+
+    /* Default is ARMv8 */
+
+    #if 0 /* ARMv7 */
+        #define WOLFSSL_ARM_ARCH 7
+    #endif
+#endif
+
+#ifdef CONFIG_WOLFCRYPT_INTELASM
+    #define USE_INTEL_SPEEDUP
+    #define WOLFSSL_X86_64_BUILD /* 64-bit */
+    //#define WOLFSSL_X86_BUILD /* 32-bit */
+
+    /* Issues with building AESNI "_mm_aesimc_si128" always_inline */
+    //#define WOLFSSL_AESNI
+#endif
+
 
 /* ------------------------------------------------------------------------- */
 /* Debugging */