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hw/arm/stm32f405: Report error when incorrect CPU is used

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Both 'netduinoplus2' and 'olimex-stm32-h405' machines ignore the
CPU type requested by the command line. This might confuse users,
since the following will create a machine with a Cortex-M4 CPU:

  $ qemu-system-aarch64 -M netduinoplus2 -cpu cortex-r5f

Set the MachineClass::valid_cpu_types field (introduced in commit
c9cf636d48 "machine: Add a valid_cpu_types property").
Remove the now unused MachineClass::default_cpu_type field.

We now get:

  $ qemu-system-aarch64 -M netduinoplus2 -cpu cortex-r5f
  qemu-system-aarch64: Invalid CPU type: cortex-r5f-arm-cpu
  The valid types are: cortex-m4-arm-cpu

Since the SoC family can only use Cortex-M4 CPUs, hard-code the
CPU type name at the SoC level, removing the QOM property
entirely.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Message-id: 20231117071704.35040-3-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Philippe Mathieu-Daudé 2023-11-17 08:17:02 +01:00 committed by Peter Maydell
parent 790a4428f2
commit e1b72c55b1
4 changed files with 13 additions and 14 deletions
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7
hw/arm/netduinoplus2.c
View file

@ -44,7 +44,6 @@ static void netduinoplus2_init(MachineState *machine)
clock_set_hz(sysclk, SYSCLK_FRQ);
dev = qdev_new(TYPE_STM32F405_SOC);
qdev_prop_set_string(dev, "cpu-type", ARM_CPU_TYPE_NAME("cortex-m4"));
qdev_connect_clock_in(dev, "sysclk", sysclk);
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
@ -55,8 +54,14 @@ static void netduinoplus2_init(MachineState *machine)
static void netduinoplus2_machine_init(MachineClass *mc)
{
static const char * const valid_cpu_types[] = {
ARM_CPU_TYPE_NAME("cortex-m4"),
NULL
};
mc->desc = "Netduino Plus 2 Machine (Cortex-M4)";
mc->init = netduinoplus2_init;
mc->valid_cpu_types = valid_cpu_types;
}
DEFINE_MACHINE("netduinoplus2", netduinoplus2_machine_init)

8
hw/arm/olimex-stm32-h405.c
View file

@ -47,7 +47,6 @@ static void olimex_stm32_h405_init(MachineState *machine)
clock_set_hz(sysclk, SYSCLK_FRQ);
dev = qdev_new(TYPE_STM32F405_SOC);
qdev_prop_set_string(dev, "cpu-type", ARM_CPU_TYPE_NAME("cortex-m4"));
qdev_connect_clock_in(dev, "sysclk", sysclk);
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
@ -58,9 +57,14 @@ static void olimex_stm32_h405_init(MachineState *machine)
static void olimex_stm32_h405_machine_init(MachineClass *mc)
{
static const char * const valid_cpu_types[] = {
ARM_CPU_TYPE_NAME("cortex-m4"),
NULL
};
mc->desc = "Olimex STM32-H405 (Cortex-M4)";
mc->init = olimex_stm32_h405_init;
mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m4");
mc->valid_cpu_types = valid_cpu_types;
/* SRAM pre-allocated as part of the SoC instantiation */
mc->default_ram_size = 0;

8
hw/arm/stm32f405_soc.c
View file

@ -149,7 +149,7 @@ static void stm32f405_soc_realize(DeviceState *dev_soc, Error **errp)
armv7m = DEVICE(&s->armv7m);
qdev_prop_set_uint32(armv7m, "num-irq", 96);
qdev_prop_set_string(armv7m, "cpu-type", s->cpu_type);
qdev_prop_set_string(armv7m, "cpu-type", ARM_CPU_TYPE_NAME("cortex-m4"));
qdev_prop_set_bit(armv7m, "enable-bitband", true);
qdev_connect_clock_in(armv7m, "cpuclk", s->sysclk);
qdev_connect_clock_in(armv7m, "refclk", s->refclk);
@ -287,17 +287,11 @@ static void stm32f405_soc_realize(DeviceState *dev_soc, Error **errp)
create_unimplemented_device("RNG", 0x50060800, 0x400);
}
static Property stm32f405_soc_properties[] = {
DEFINE_PROP_STRING("cpu-type", STM32F405State, cpu_type),
DEFINE_PROP_END_OF_LIST(),
};
static void stm32f405_soc_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
dc->realize = stm32f405_soc_realize;
device_class_set_props(dc, stm32f405_soc_properties);
/* No vmstate or reset required: device has no internal state */
}

4
include/hw/arm/stm32f405_soc.h
View file

@ -51,11 +51,7 @@ OBJECT_DECLARE_SIMPLE_TYPE(STM32F405State, STM32F405_SOC)
#define CCM_SIZE (64 * 1024)
struct STM32F405State {
/*< private >*/
SysBusDevice parent_obj;
/*< public >*/
char *cpu_type;
ARMv7MState armv7m;