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target-arm: Add feature unset function 

Add an unset_feature() function to compliment the set_feature() function.  This
will be used to disable functions after they have been enabled during
initialization.

Signed-off-by: Greg Bellows <greg.bellows@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1418684992-8996-9-git-send-email-greg.bellows@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Greg Bellows 2014-12-15 17:09:45 -06:00 committed by Peter Maydell
parent 083a58906c
commit 08828484a5
1 changed files with 5 additions and 0 deletions
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5
target-arm/cpu.c
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@ -327,6 +327,11 @@ static inline void set_feature(CPUARMState *env, int feature)
env->features |= 1ULL << feature;
}
static inline void unset_feature(CPUARMState *env, int feature)
{
env->features &= ~(1ULL << feature);
}
static void arm_cpu_initfn(Object *obj)
{
CPUState *cs = CPU(obj);