accel: change {xen, kvm, tcg, qtest}_allowed from int to bool

Signed-off-by: Nliguang <lig.fnst@cn.fujitsu.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

hw/xen.h

@@ -21,9 +21,9 @@ enum xen_mode {
 extern uint32_t xen_domid;
 extern enum xen_mode xen_mode;
 
-extern int xen_allowed;
+extern bool xen_allowed;
 
-static inline int xen_enabled(void)
+static inline bool xen_enabled(void)
 {
 #if defined(CONFIG_XEN_BACKEND) && !defined(CONFIG_NO_XEN)
     return xen_allowed;

include/sysemu/kvm.h

@@ -39,7 +39,7 @@
 #define KVM_FEATURE_CLOCKSOURCE_STABLE_BIT 0
 #endif
 
-extern int kvm_allowed;
+extern bool kvm_allowed;
 extern bool kvm_kernel_irqchip;
 extern bool kvm_async_interrupts_allowed;
 extern bool kvm_irqfds_allowed;

include/sysemu/qtest.h

@@ -17,7 +17,7 @@
 #include "qemu-common.h"
 
 #if !defined(CONFIG_USER_ONLY)
-extern int qtest_allowed;
+extern bool qtest_allowed;
 extern const char *qtest_chrdev;
 extern const char *qtest_log;
 

qtest.c

@@ -24,7 +24,7 @@
 
 const char *qtest_chrdev;
 const char *qtest_log;
-int qtest_allowed = 0;
+bool qtest_allowed;
 
 static DeviceState *irq_intercept_dev;
 static FILE *qtest_log_fp;

vl.c

@@ -263,9 +263,9 @@ static NotifierList exit_notifiers =
 static NotifierList machine_init_done_notifiers =
     NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
 
-static int tcg_allowed = 1;
-int kvm_allowed = 0;
-int xen_allowed = 0;
+static bool tcg_allowed = true;
+bool kvm_allowed;
+bool xen_allowed;
 uint32_t xen_domid;
 enum xen_mode xen_mode = XEN_EMULATE;
 static int tcg_tb_size;
@@ -2544,7 +2544,7 @@ static struct {
     const char *name;
     int (*available)(void);
     int (*init)(void);
-    int *allowed;
+    bool *allowed;
 } accel_list[] = {
     { "tcg", "tcg", tcg_available, tcg_init, &tcg_allowed },
     { "xen", "Xen", xen_available, xen_init, &xen_allowed },
@@ -2582,14 +2582,14 @@ static int configure_accelerator(void)
                            accel_list[i].name);
                     continue;
                 }
-                *(accel_list[i].allowed) = 1;
+                *(accel_list[i].allowed) = true;
                 ret = accel_list[i].init();
                 if (ret < 0) {
                     init_failed = true;
                     fprintf(stderr, "failed to initialize %s: %s\n",
                             accel_list[i].name,
                             strerror(-ret));
-                    *(accel_list[i].allowed) = 0;
+                    *(accel_list[i].allowed) = false;
                 } else {
                     accel_initialised = true;
                 }