target-arm: Extend feature flags to 64 bits

Extend feature flags to 64 bits, as we've just run out of space
in the 32 bit integer we were using for them.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

target-arm/cpu.c

diff --git a/target-arm/cpu.c b/target-arm/cpu.c
index 526e725..b00f5fa 100644
--- a/target-arm/cpu.c
+++ b/target-arm/cpu.c
@@ -129,7 +129,7 @@
 
 static inline void set_feature(CPUARMState *env, int feature)
 {
-    env->features |= 1u << feature;
+    env->features |= 1ULL << feature;
 }
 
 static void arm_cpu_initfn(Object *obj)

target-arm/cpu.h

diff --git a/target-arm/cpu.h b/target-arm/cpu.h
index 82cad4b..3c5d2be 100644
--- a/target-arm/cpu.h
+++ b/target-arm/cpu.h
@@ -221,7 +221,7 @@
     /* These fields after the common ones so they are preserved on reset.  */
 
     /* Internal CPU feature flags.  */
-    uint32_t features;
+    uint64_t features;
 
     void *nvic;
     const struct arm_boot_info *boot_info;
@@ -392,7 +392,7 @@
 
 static inline int arm_feature(CPUARMState *env, int feature)
 {
-    return (env->features & (1u << feature)) != 0;
+    return (env->features & (1ULL << feature)) != 0;
 }
 
 void arm_cpu_list(FILE *f, fprintf_function cpu_fprintf);
@@ -638,7 +638,7 @@
 #define cpu_signal_handler cpu_arm_signal_handler
 #define cpu_list arm_cpu_list
 
-#define CPU_SAVE_VERSION 7
+#define CPU_SAVE_VERSION 8
 
 /* MMU modes definitions */
 #define MMU_MODE0_SUFFIX _kernel

target-arm/machine.c

diff --git a/target-arm/machine.c b/target-arm/machine.c
index a2a75fb..429cbc8 100644
--- a/target-arm/machine.c
+++ b/target-arm/machine.c
@@ -60,7 +60,7 @@
     qemu_put_be32(f, env->cp15.c15_diagnostic);
     qemu_put_be32(f, env->cp15.c15_power_diagnostic);
 
-    qemu_put_be32(f, env->features);
+    qemu_put_be64(f, env->features);
 
     if (arm_feature(env, ARM_FEATURE_VFP)) {
         for (i = 0;  i < 16; i++) {
@@ -177,7 +177,7 @@
     env->cp15.c15_diagnostic = qemu_get_be32(f);
     env->cp15.c15_power_diagnostic = qemu_get_be32(f);
 
-    env->features = qemu_get_be32(f);
+    env->features = qemu_get_be64(f);
 
     if (arm_feature(env, ARM_FEATURE_VFP)) {
         for (i = 0;  i < 16; i++) {