arm: drop intermediate cpu_model -> cpu type parsing and use cpu type directly

there are 2 use cases to deal with:
  1: fixed CPU models per board/soc
  2: boards with user configurable cpu_model and fallback to
     default cpu_model if user hasn't specified one explicitly

For the 1st
  drop intermediate cpu_model parsing and use const cpu type
  directly, which replaces:
     typename = object_class_get_name(
           cpu_class_by_name(TYPE_ARM_CPU, cpu_model))
     object_new(typename)
  with
     object_new(FOO_CPU_TYPE_NAME)
  or
     cpu_generic_init(BASE_CPU_TYPE, "my cpu model")
  with
     cpu_create(FOO_CPU_TYPE_NAME)

as result 1st use case doesn't have to invoke not necessary
translation and not needed code is removed.

For the 2nd
 1: set default cpu type with MachineClass::default_cpu_type and
 2: use generic cpu_model parsing that done before machine_init()
    is run and:
    2.1: drop custom cpu_model parsing where pattern is:
       typename = object_class_get_name(
           cpu_class_by_name(TYPE_ARM_CPU, cpu_model))
       [parse_features(typename, cpu_model, &err) ]

    2.2: or replace cpu_generic_init() which does what
         2.1 does + create_cpu(typename) with just
         create_cpu(machine->cpu_type)
as result cpu_name -> cpu_type translation is done using
generic machine code one including parsing optional features
if supported/present (removes a bunch of duplicated cpu_model
parsing code) and default cpu type is defined in an uniform way
within machine_class_init callbacks instead of adhoc places
in boadr's machine_init code.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <1505318697-77161-6-git-send-email-imammedo@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>

3 files changed, 4 insertions, 4 deletions

diff --git a/include/hw/arm/armv7m.h b/include/hw/arm/armv7m.h
index 10eb058027..9ad316c76e 100644
--- a/include/hw/arm/armv7m.h
+++ b/include/hw/arm/armv7m.h
@@ -35,7 +35,7 @@ typedef struct {
 /* ARMv7M container object.
  * + Unnamed GPIO input lines: external IRQ lines for the NVIC
  * + Named GPIO output SYSRESETREQ: signalled for guest AIRCR.SYSRESETREQ
- * + Property "cpu-model": CPU model to instantiate
+ * + Property "cpu-type": CPU type to instantiate
  * + Property "num-irq": number of external IRQ lines
  * + Property "memory": MemoryRegion defining the physical address space
  *   that CPU accesses see. (The NVIC, bitbanding and other CPU-internal
@@ -55,7 +55,7 @@ typedef struct ARMv7MState {
     MemoryRegion container;
 
     /* Properties */
-    char *cpu_model;
+    char *cpu_type;
     /* MemoryRegion the board provides to us (with its devices, RAM, etc) */
     MemoryRegion *board_memory;
 } ARMv7MState;
diff --git a/include/hw/arm/aspeed_soc.h b/include/hw/arm/aspeed_soc.h
index 0b88baaad0..f26914a2b9 100644
--- a/include/hw/arm/aspeed_soc.h
+++ b/include/hw/arm/aspeed_soc.h
@@ -49,7 +49,7 @@ typedef struct AspeedSoCState {
 
 typedef struct AspeedSoCInfo {
     const char *name;
-    const char *cpu_model;
+    const char *cpu_type;
     uint32_t silicon_rev;
     hwaddr sdram_base;
     uint64_t sram_size;
diff --git a/include/hw/arm/stm32f205_soc.h b/include/hw/arm/stm32f205_soc.h
index e2dce1122e..922a733f88 100644
--- a/include/hw/arm/stm32f205_soc.h
+++ b/include/hw/arm/stm32f205_soc.h
@@ -52,7 +52,7 @@ typedef struct STM32F205State {
     SysBusDevice parent_obj;
     /*< public >*/
 
-    char *cpu_model;
+    char *cpu_type;
 
     ARMv7MState armv7m;