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target-arm: add feature flag for ARMv8

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Signed-off-by: Mans Rullgard <mans@mansr.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Mans Rullgard 2013-07-15 14:35:25 +01:00 committed by Peter Maydell
parent c3cb8e7780
commit 81e69fb093
3 changed files with 8 additions and 1 deletions
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7
target-arm/cpu.c
View file

@ -157,6 +157,11 @@ static void arm_cpu_realizefn(DeviceState *dev, Error **errp)
CPUARMState *env = &cpu->env;
/* Some features automatically imply others: */
if (arm_feature(env, ARM_FEATURE_V8)) {
set_feature(env, ARM_FEATURE_V7);
set_feature(env, ARM_FEATURE_ARM_DIV);
set_feature(env, ARM_FEATURE_LPAE);
}
if (arm_feature(env, ARM_FEATURE_V7)) {
set_feature(env, ARM_FEATURE_VAPA);
set_feature(env, ARM_FEATURE_THUMB2);
@ -744,7 +749,7 @@ static void pxa270c5_initfn(Object *obj)
static void arm_any_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
set_feature(&cpu->env, ARM_FEATURE_V7);
set_feature(&cpu->env, ARM_FEATURE_V8);
set_feature(&cpu->env, ARM_FEATURE_VFP4);
set_feature(&cpu->env, ARM_FEATURE_VFP_FP16);
set_feature(&cpu->env, ARM_FEATURE_NEON);

1
target-arm/cpu.h
View file

@ -387,6 +387,7 @@ enum arm_features {
ARM_FEATURE_MPIDR, /* has cp15 MPIDR */
ARM_FEATURE_PXN, /* has Privileged Execute Never bit */
ARM_FEATURE_LPAE, /* has Large Physical Address Extension */
ARM_FEATURE_V8,
};
static inline int arm_feature(CPUARMState *env, int feature)

1
target-arm/translate.c
View file

@ -42,6 +42,7 @@
#define ENABLE_ARCH_6K arm_feature(env, ARM_FEATURE_V6K)
#define ENABLE_ARCH_6T2 arm_feature(env, ARM_FEATURE_THUMB2)
#define ENABLE_ARCH_7 arm_feature(env, ARM_FEATURE_V7)
#define ENABLE_ARCH_8 arm_feature(env, ARM_FEATURE_V8)
#define ARCH(x) do { if (!ENABLE_ARCH_##x) goto illegal_op; } while(0)