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target-arm: Add CPU feature flag for v7MP

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Add a CPU feature flag for v7MP (the multiprocessing extensions); some
instructions exist only for v7MP and not for the base v7 architecture.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Peter Maydell 2011-02-03 19:43:22 +00:00 committed by Aurelien Jarno
parent 4fef930af8
commit e1bbf44636
2 changed files with 8 additions and 1 deletions
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3
target-arm/cpu.h
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@ -362,7 +362,8 @@ enum arm_features {
ARM_FEATURE_DIV,
ARM_FEATURE_M, /* Microcontroller profile. */
ARM_FEATURE_OMAPCP, /* OMAP specific CP15 ops handling. */
ARM_FEATURE_THUMB2EE
ARM_FEATURE_THUMB2EE,
ARM_FEATURE_V7MP /* v7 Multiprocessing Extensions */
};
static inline int arm_feature(CPUARMState *env, int feature)

6
target-arm/helper.c
View File

@ -123,6 +123,11 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
set_feature(env, ARM_FEATURE_VFP_FP16);
set_feature(env, ARM_FEATURE_NEON);
set_feature(env, ARM_FEATURE_THUMB2EE);
/* Note that A9 supports the MP extensions even for
* A9UP and single-core A9MP (which are both different
* and valid configurations; we don't model A9UP).
*/
set_feature(env, ARM_FEATURE_V7MP);
env->vfp.xregs[ARM_VFP_FPSID] = 0x41034000; /* Guess */
env->vfp.xregs[ARM_VFP_MVFR0] = 0x11110222;
env->vfp.xregs[ARM_VFP_MVFR1] = 0x01111111;
@ -152,6 +157,7 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
set_feature(env, ARM_FEATURE_NEON);
set_feature(env, ARM_FEATURE_THUMB2EE);
set_feature(env, ARM_FEATURE_DIV);
set_feature(env, ARM_FEATURE_V7MP);
break;
case ARM_CPUID_TI915T:
case ARM_CPUID_TI925T: