From: Greg Bellows <greg.bellows@linaro.org>
Date: Mon, 15 Dec 2014 23:09:45 +0000 (-0600)
Subject: target-arm: Add feature unset function
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=08828484a5c1ec55a6cbb4b4d377bfcf41199b5c;p=qemu.git

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>
---

diff --git a/target-arm/cpu.c b/target-arm/cpu.c
index d3db279e1b..01afed2037 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);