diff options
| author | Julia Suvorova <jusual@mail.ru> | 2018-06-22 13:28:41 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2018-06-22 13:28:41 +0100 |
| commit | cc2ae7c9de14efd72c6205825eb7cd980ac09c11 (patch) | |
| tree | 9877c84c79f2091a0a962c638bdb8499b666b666 /target/arm | |
| parent | 665670aa3ae85444e70888654e7af1eda19598b9 (diff) | |
target/arm: Introduce ARM_FEATURE_M_MAIN
This feature is intended to distinguish ARMv8-M variants: Baseline and
Mainline. ARMv7-M compatibility requires the Main Extension. ARMv6-M
compatibility is provided by all ARMv8-M implementations.
Signed-off-by: Julia Suvorova <jusual@mail.ru>
Message-id: 20180622080138.17702-2-jusual@mail.ru
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target/arm')
| -rw-r--r-- | target/arm/cpu.c | 3 | ||||
| -rw-r--r-- | target/arm/cpu.h | 1 |
2 files changed, 4 insertions, 0 deletions
diff --git a/target/arm/cpu.c b/target/arm/cpu.c index 81c1d22b14..2ae4fffafb 100644 --- a/target/arm/cpu.c +++ b/target/arm/cpu.c @@ -1238,6 +1238,7 @@ static void cortex_m3_initfn(Object *obj) ARMCPU *cpu = ARM_CPU(obj); set_feature(&cpu->env, ARM_FEATURE_V7); set_feature(&cpu->env, ARM_FEATURE_M); + set_feature(&cpu->env, ARM_FEATURE_M_MAIN); cpu->midr = 0x410fc231; cpu->pmsav7_dregion = 8; cpu->id_pfr0 = 0x00000030; @@ -1262,6 +1263,7 @@ static void cortex_m4_initfn(Object *obj) set_feature(&cpu->env, ARM_FEATURE_V7); set_feature(&cpu->env, ARM_FEATURE_M); + set_feature(&cpu->env, ARM_FEATURE_M_MAIN); set_feature(&cpu->env, ARM_FEATURE_THUMB_DSP); cpu->midr = 0x410fc240; /* r0p0 */ cpu->pmsav7_dregion = 8; @@ -1287,6 +1289,7 @@ static void cortex_m33_initfn(Object *obj) set_feature(&cpu->env, ARM_FEATURE_V8); set_feature(&cpu->env, ARM_FEATURE_M); + set_feature(&cpu->env, ARM_FEATURE_M_MAIN); set_feature(&cpu->env, ARM_FEATURE_M_SECURITY); set_feature(&cpu->env, ARM_FEATURE_THUMB_DSP); cpu->midr = 0x410fd213; /* r0p3 */ diff --git a/target/arm/cpu.h b/target/arm/cpu.h index 8488273c5b..a4507a2d6f 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -1482,6 +1482,7 @@ enum arm_features { ARM_FEATURE_V8_RDM, /* implements v8.1 simd round multiply */ ARM_FEATURE_V8_FP16, /* implements v8.2 half-precision float */ ARM_FEATURE_V8_FCMA, /* has complex number part of v8.3 extensions. */ + ARM_FEATURE_M_MAIN, /* M profile Main Extension */ }; static inline int arm_feature(CPUARMState *env, int feature) |