[Qemu-devel] [PULL 13/31] target-arm: Add feature unset function

[Peter Maydell]

From: Greg Bellows <address@hidden>

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 <address@hidden>
Reviewed-by: Peter Maydell <address@hidden>
Message-id: address@hidden
Signed-off-by: Peter Maydell <address@hidden>
---
 target-arm/cpu.c | 5 +++++
 1 file changed, 5 insertions(+)

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);
-- 
1.9.1