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| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2013-12-17 19:42:25 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2013-12-17 19:42:25 +0000 |
| commit | 9d935509fdb48e47cc46e81d2b9d466b18b546ba (patch) | |
| tree | 90d42d5f564146e21609e72ca8b9445356519fbe /target-arm/translate.c | |
| parent | f46e720a82ccdf1a521cf459448f3f96ed895d43 (diff) | |
| download | qemu-9d935509fdb48e47cc46e81d2b9d466b18b546ba.zip qemu-9d935509fdb48e47cc46e81d2b9d466b18b546ba.tar.gz qemu-9d935509fdb48e47cc46e81d2b9d466b18b546ba.tar.bz2 | |
target-arm: add support for v8 AES instructions
This adds support for the AESE/AESD/AESMC/AESIMC instructions that
are available on some v8 implementations of Aarch32.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Message-id: 1386266078-6976-1-git-send-email-ard.biesheuvel@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target-arm/translate.c')
| -rw-r--r-- | target-arm/translate.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/target-arm/translate.c b/target-arm/translate.c index 8c479ff..9131467 100644 --- a/target-arm/translate.c +++ b/target-arm/translate.c @@ -4592,6 +4592,8 @@ static const uint8_t neon_3r_sizes[] = { #define NEON_2RM_VREV16 2 #define NEON_2RM_VPADDL 4 #define NEON_2RM_VPADDL_U 5 +#define NEON_2RM_AESE 6 /* Includes AESD */ +#define NEON_2RM_AESMC 7 /* Includes AESIMC */ #define NEON_2RM_VCLS 8 #define NEON_2RM_VCLZ 9 #define NEON_2RM_VCNT 10 @@ -4649,6 +4651,8 @@ static const uint8_t neon_2rm_sizes[] = { [NEON_2RM_VREV16] = 0x1, [NEON_2RM_VPADDL] = 0x7, [NEON_2RM_VPADDL_U] = 0x7, + [NEON_2RM_AESE] = 0x1, + [NEON_2RM_AESMC] = 0x1, [NEON_2RM_VCLS] = 0x7, [NEON_2RM_VCLZ] = 0x7, [NEON_2RM_VCNT] = 0x1, @@ -6184,6 +6188,28 @@ static int disas_neon_data_insn(CPUARMState * env, DisasContext *s, uint32_t ins tcg_temp_free_i32(tmp2); tcg_temp_free_i32(tmp3); break; + case NEON_2RM_AESE: case NEON_2RM_AESMC: + if (!arm_feature(env, ARM_FEATURE_V8_AES) + || ((rm | rd) & 1)) { + return 1; + } + tmp = tcg_const_i32(rd); + tmp2 = tcg_const_i32(rm); + + /* Bit 6 is the lowest opcode bit; it distinguishes between + * encryption (AESE/AESMC) and decryption (AESD/AESIMC) + */ + tmp3 = tcg_const_i32(extract32(insn, 6, 1)); + + if (op == NEON_2RM_AESE) { + gen_helper_crypto_aese(cpu_env, tmp, tmp2, tmp3); + } else { + gen_helper_crypto_aesmc(cpu_env, tmp, tmp2, tmp3); + } + tcg_temp_free_i32(tmp); + tcg_temp_free_i32(tmp2); + tcg_temp_free_i32(tmp3); + break; default: elementwise: for (pass = 0; pass < (q ? 4 : 2); pass++) { |