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{bp-20193} arch/arm64: AES using the Armv8 Cryptography Extension #20313

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Merged
xiaoxiang781216 merged 2 commits into from
Sep 24, 2026
Merged

{bp-20193} arch/arm64: AES using the Armv8 Cryptography Extension #20313

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f0266e9
arch/arm64: implement up_addrenv_va_to_pa().
royzah Sep 19, 2026
0aacd80
arch/arm64: AES using the Armv8 Cryptography Extension.
royzah Sep 19, 2026
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13 changes: 13 additions & 0 deletions arch/arm64/Kconfig
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Original file line number Diff line number Diff line change
Expand Up @@ -229,6 +229,19 @@ config ARCH_AS_HAS_ARMV8_5
menu "ARMv8.5 architectural features"
depends on ARCH_AS_HAS_ARMV8_5

config ARM64_CRYPTO_AES
bool "AES using the Armv8 Cryptography Extension"
select CRYPTO
select CRYPTO_AES
---help---
Provide aes_cypher() with AESE, AESD and the MixColumns pair. The
table-driven cipher indexes memory with key-dependent values, so
its timing follows the cache; these instructions do not.

The core must implement the extension. ID_AA64ISAR0_EL1 is read on
every call, which returns -ENOTSUP rather than trapping if it does
not.

config ARM64_MTE
bool "Memory Tagging Extension support"
select ARCH_HAVE_MEMTAG
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14 changes: 14 additions & 0 deletions arch/arm64/src/common/CMakeLists.txt
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Expand Up @@ -73,6 +73,20 @@ endif()

if(CONFIG_ARCH_HAVE_MMU)
list(APPEND SRCS arm64_mmu.c)

# drivers/misc/addrenv.c defines the same entry points from a table.

if(NOT CONFIG_DEV_SIMPLE_ADDRENV)
list(APPEND SRCS arm64_physpgaddr.c)
endif()
endif()

if(CONFIG_ARM64_CRYPTO_AES)
list(APPEND SRCS arm64_aes.c)
endif()

if(CONFIG_ARM64_CRYPTO_AES AND CONFIG_CRYPTO_CRYPTODEV_HARDWARE)
list(APPEND SRCS arm64_crypto.c)
endif()

if(CONFIG_ARM64_MTE)
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16 changes: 16 additions & 0 deletions arch/arm64/src/common/Make.defs
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Expand Up @@ -80,6 +80,22 @@ endif

ifeq ($(CONFIG_ARCH_HAVE_MMU),y)
CMN_CSRCS += arm64_mmu.c

# drivers/misc/addrenv.c defines the same entry points from a table.

ifneq ($(CONFIG_DEV_SIMPLE_ADDRENV),y)
CMN_CSRCS += arm64_physpgaddr.c
endif
endif

ifeq ($(CONFIG_ARM64_CRYPTO_AES),y)
CMN_CSRCS += arm64_aes.c
endif

ifeq ($(CONFIG_CRYPTO_CRYPTODEV_HARDWARE),y)
ifeq ($(CONFIG_ARM64_CRYPTO_AES),y)
CMN_CSRCS += arm64_crypto.c
endif
endif

ifeq ($(CONFIG_ARM64_MTE),y)
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