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[v4,08/15] target-arm: Add feature unset function

Message ID 1418684992-8996-9-git-send-email-greg.bellows@linaro.org
State Superseded
Headers show

Commit Message

Greg Bellows Dec. 15, 2014, 11:09 p.m. UTC 
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>
---
 target-arm/cpu.c | 5 +++++
 1 file changed, 5 insertions(+)
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Patch

diff --git a/target-arm/cpu.c b/target-arm/cpu.c
index d3db279..01afed2 100644
--- a/target-arm/cpu.c
+++ b/target-arm/cpu.c
@@ -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);