hw: Make MachineClass::is_default a boolean type

There's no good reason for it to be type int, change it to bool.

Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200207161948.15972-3-philmd@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>

hw/alpha/dp264.c

@@ -181,7 +181,7 @@ static void clipper_machine_init(MachineClass *mc)
     mc->init = clipper_init;
     mc->block_default_type = IF_IDE;
     mc->max_cpus = 4;
-    mc->is_default = 1;
+    mc->is_default = true;
     mc->default_cpu_type = ALPHA_CPU_TYPE_NAME("ev67");
     mc->default_ram_id = "ram";
 }

hw/cris/axis_dev88.c

@@ -344,7 +344,7 @@ static void axisdev88_machine_init(MachineClass *mc)
 {
     mc->desc = "AXIS devboard 88";
     mc->init = axisdev88_init;
-    mc->is_default = 1;
+    mc->is_default = true;
     mc->default_cpu_type = CRIS_CPU_TYPE_NAME("crisv32");
     mc->default_ram_id = "axisdev88.ram";
 }

hw/hppa/machine.c

@@ -290,7 +290,7 @@ static void machine_hppa_machine_init(MachineClass *mc)
     mc->block_default_type = IF_SCSI;
     mc->max_cpus = HPPA_MAX_CPUS;
     mc->default_cpus = 1;
-    mc->is_default = 1;
+    mc->is_default = true;
     mc->default_ram_size = 512 * MiB;
     mc->default_boot_order = "cd";
     mc->default_ram_id = "ram";

hw/i386/pc_piix.c

@@ -423,7 +423,7 @@ static void pc_i440fx_5_0_machine_options(MachineClass *m)
     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
     pc_i440fx_machine_options(m);
     m->alias = "pc";
-    m->is_default = 1;
+    m->is_default = true;
     pcmc->default_cpu_version = 1;
 }
 
@@ -434,7 +434,7 @@ static void pc_i440fx_4_2_machine_options(MachineClass *m)
 {
     pc_i440fx_5_0_machine_options(m);
     m->alias = NULL;
-    m->is_default = 0;
+    m->is_default = false;
     compat_props_add(m->compat_props, hw_compat_4_2, hw_compat_4_2_len);
     compat_props_add(m->compat_props, pc_compat_4_2, pc_compat_4_2_len);
 }
@@ -446,7 +446,7 @@ static void pc_i440fx_4_1_machine_options(MachineClass *m)
 {
     pc_i440fx_4_2_machine_options(m);
     m->alias = NULL;
-    m->is_default = 0;
+    m->is_default = false;
     compat_props_add(m->compat_props, hw_compat_4_1, hw_compat_4_1_len);
     compat_props_add(m->compat_props, pc_compat_4_1, pc_compat_4_1_len);
 }
@@ -459,7 +459,7 @@ static void pc_i440fx_4_0_machine_options(MachineClass *m)
     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
     pc_i440fx_4_1_machine_options(m);
     m->alias = NULL;
-    m->is_default = 0;
+    m->is_default = false;
     pcmc->default_cpu_version = CPU_VERSION_LEGACY;
     compat_props_add(m->compat_props, hw_compat_4_0, hw_compat_4_0_len);
     compat_props_add(m->compat_props, pc_compat_4_0, pc_compat_4_0_len);
@@ -473,7 +473,7 @@ static void pc_i440fx_3_1_machine_options(MachineClass *m)
     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
 
     pc_i440fx_4_0_machine_options(m);
-    m->is_default = 0;
+    m->is_default = false;
     pcmc->do_not_add_smb_acpi = true;
     m->smbus_no_migration_support = true;
     m->alias = NULL;

hw/lm32/lm32_boards.c

@@ -295,7 +295,7 @@ static void lm32_evr_class_init(ObjectClass *oc, void *data)
 
     mc->desc = "LatticeMico32 EVR32 eval system";
     mc->init = lm32_evr_init;
-    mc->is_default = 1;
+    mc->is_default = true;
     mc->default_cpu_type = LM32_CPU_TYPE_NAME("lm32-full");
     mc->default_ram_size = 64 * MiB;
     mc->default_ram_id = "lm32_evr.sdram";

hw/m68k/mcf5208.c

@@ -350,7 +350,7 @@ static void mcf5208evb_machine_init(MachineClass *mc)
 {
     mc->desc = "MCF5208EVB";
     mc->init = mcf5208evb_init;
-    mc->is_default = 1;
+    mc->is_default = true;
     mc->default_cpu_type = M68K_CPU_TYPE_NAME("m5208");
     mc->default_ram_id = "mcf5208.ram";
 }

hw/microblaze/petalogix_s3adsp1800_mmu.c

@@ -132,7 +132,7 @@ static void petalogix_s3adsp1800_machine_init(MachineClass *mc)
 {
     mc->desc = "PetaLogix linux refdesign for xilinx Spartan 3ADSP1800";
     mc->init = petalogix_s3adsp1800_init;
-    mc->is_default = 1;
+    mc->is_default = true;
 }
 
 DEFINE_MACHINE("petalogix-s3adsp1800", petalogix_s3adsp1800_machine_init)

hw/mips/mips_malta.c

@@ -1439,7 +1439,7 @@ static void mips_malta_machine_init(MachineClass *mc)
     mc->init = mips_malta_init;
     mc->block_default_type = IF_IDE;
     mc->max_cpus = 16;
-    mc->is_default = 1;
+    mc->is_default = true;
 #ifdef TARGET_MIPS64
     mc->default_cpu_type = MIPS_CPU_TYPE_NAME("20Kc");
 #else

hw/moxie/moxiesim.c

@@ -150,7 +150,7 @@ static void moxiesim_machine_init(MachineClass *mc)
 {
     mc->desc = "Moxie simulator platform";
     mc->init = moxiesim_init;
-    mc->is_default = 1;
+    mc->is_default = true;
     mc->default_cpu_type = MOXIE_CPU_TYPE_NAME("MoxieLite");
 }
 

hw/nios2/10m50_devboard.c

@@ -120,7 +120,7 @@ static void nios2_10m50_ghrd_machine_init(struct MachineClass *mc)
 {
     mc->desc = "Altera 10M50 GHRD Nios II design";
     mc->init = nios2_10m50_ghrd_init;
-    mc->is_default = 1;
+    mc->is_default = true;
 }
 
 DEFINE_MACHINE("10m50-ghrd", nios2_10m50_ghrd_machine_init);

hw/openrisc/openrisc_sim.c

@@ -176,7 +176,7 @@ static void openrisc_sim_machine_init(MachineClass *mc)
     mc->desc = "or1k simulation";
     mc->init = openrisc_sim_init;
     mc->max_cpus = 2;
-    mc->is_default = 1;
+    mc->is_default = true;
     mc->default_cpu_type = OPENRISC_CPU_TYPE_NAME("or1200");
 }
 

hw/ppc/mac_oldworld.c

@@ -435,7 +435,7 @@ static void heathrow_class_init(ObjectClass *oc, void *data)
     mc->block_default_type = IF_IDE;
     mc->max_cpus = MAX_CPUS;
 #ifndef TARGET_PPC64
-    mc->is_default = 1;
+    mc->is_default = true;
 #endif
     /* TOFIX "cad" when Mac floppy is implemented */
     mc->default_boot_order = "cd";

hw/ppc/spapr.c

@@ -4560,7 +4560,7 @@ static const TypeInfo spapr_machine_info = {
 static void spapr_machine_latest_class_options(MachineClass *mc)
 {
     mc->alias = "pseries";
-    mc->is_default = 1;
+    mc->is_default = true;
 }
 
 #define DEFINE_SPAPR_MACHINE(suffix, verstr, latest)                 \

hw/riscv/spike.c

@@ -448,7 +448,7 @@ static void spike_machine_init(MachineClass *mc)
     mc->desc = "RISC-V Spike Board";
     mc->init = spike_board_init;
     mc->max_cpus = 1;
-    mc->is_default = 1;
+    mc->is_default = true;
     mc->default_cpu_type = SPIKE_V1_10_0_CPU;
 }
 

hw/s390x/s390-virtio-ccw.c

@@ -630,7 +630,7 @@ bool css_migration_enabled(void)
         mc->desc = "VirtIO-ccw based S390 machine v" verstr;                  \
         if (latest) {                                                         \
             mc->alias = "s390-ccw-virtio";                                    \
-            mc->is_default = 1;                                               \
+            mc->is_default = true;                                            \
         }                                                                     \
     }                                                                         \
     static void ccw_machine_##suffix##_instance_init(Object *obj)             \

hw/sh4/shix.c

@@ -82,7 +82,7 @@ static void shix_machine_init(MachineClass *mc)
 {
     mc->desc = "shix card";
     mc->init = shix_init;
-    mc->is_default = 1;
+    mc->is_default = true;
     mc->default_cpu_type = TYPE_SH7750R_CPU;
 }
 

hw/sparc/sun4m.c

@@ -1402,7 +1402,7 @@ static void ss5_class_init(ObjectClass *oc, void *data)
     mc->desc = "Sun4m platform, SPARCstation 5";
     mc->init = ss5_init;
     mc->block_default_type = IF_SCSI;
-    mc->is_default = 1;
+    mc->is_default = true;
     mc->default_boot_order = "c";
     mc->default_cpu_type = SPARC_CPU_TYPE_NAME("Fujitsu-MB86904");
     mc->default_display = "tcx";

hw/sparc64/sun4u.c

@@ -816,7 +816,7 @@ static void sun4u_class_init(ObjectClass *oc, void *data)
     mc->init = sun4u_init;
     mc->block_default_type = IF_IDE;
     mc->max_cpus = 1; /* XXX for now */
-    mc->is_default = 1;
+    mc->is_default = true;
     mc->default_boot_order = "c";
     mc->default_cpu_type = SPARC_CPU_TYPE_NAME("TI-UltraSparc-IIi");
     mc->ignore_boot_device_suffixes = true;

hw/unicore32/puv3.c

@@ -140,7 +140,7 @@ static void puv3_machine_init(MachineClass *mc)
 {
     mc->desc = "PKUnity Version-3 based on UniCore32";
     mc->init = puv3_init;
-    mc->is_default = 1;
+    mc->is_default = true;
     mc->default_cpu_type = UNICORE32_CPU_TYPE_NAME("UniCore-II");
 }
 

include/hw/boards.h

@@ -81,6 +81,8 @@ typedef struct {
  * @max_cpus: maximum number of CPUs supported. Default: 1
  * @min_cpus: minimum number of CPUs supported. Default: 1
  * @default_cpus: number of CPUs instantiated if none are specified. Default: 1
+ * @is_default:
+ *    If true QEMU will use this machine by default if no '-M' option is given.
  * @get_hotplug_handler: this function is called during bus-less
  *    device hotplug. If defined it returns pointer to an instance
  *    of HotplugHandler object, which handles hotplug operation
@@ -181,7 +183,7 @@ struct MachineClass {
         no_sdcard:1,
         pci_allow_0_address:1,
         legacy_fw_cfg_order:1;
-    int is_default;
+    bool is_default;
     const char *default_machine_opts;
     const char *default_boot_order;
     const char *default_display;