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hw/arm/stm32f100: Report error when incorrect CPU is used

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The 'stm32vldiscovery' machine ignores the CPU type requested by
the command line. This might confuse users, since the following
will create a machine with a Cortex-M3 CPU:

  $ qemu-system-aarch64 -M stm32vldiscovery -cpu neoverse-n1

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 stm32vldiscovery -cpu neoverse-n1
  qemu-system-aarch64: Invalid CPU type: neoverse-n1-arm-cpu
  The valid types are: cortex-m3-arm-cpu

Since the SoC family can only use Cortex-M3 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: 20231117071704.35040-5-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Philippe Mathieu-Daudé 2023-11-17 08:17:04 +01:00 • committed by Peter Maydell
parent ff6cda35f1
commit d652866007
3 changed files with 8 additions and 12 deletions
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9
hw/arm/stm32f100_soc.c
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@ -115,7 +115,7 @@ static void stm32f100_soc_realize(DeviceState *dev_soc, Error **errp)
/* Init ARMv7m */
armv7m = DEVICE(&s->armv7m);
qdev_prop_set_uint32(armv7m, "num-irq", 61);
qdev_prop_set_string(armv7m, "cpu-type", s->cpu_type);
qdev_prop_set_string(armv7m, "cpu-type", ARM_CPU_TYPE_NAME("cortex-m3"));
qdev_prop_set_bit(armv7m, "enable-bitband", true);
qdev_connect_clock_in(armv7m, "cpuclk", s->sysclk);
qdev_connect_clock_in(armv7m, "refclk", s->refclk);
@ -180,17 +180,12 @@ static void stm32f100_soc_realize(DeviceState *dev_soc, Error **errp)
create_unimplemented_device("CRC", 0x40023000, 0x400);
}
static Property stm32f100_soc_properties[] = {
DEFINE_PROP_STRING("cpu-type", STM32F100State, cpu_type),
DEFINE_PROP_END_OF_LIST(),
};
static void stm32f100_soc_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
dc->realize = stm32f100_soc_realize;
device_class_set_props(dc, stm32f100_soc_properties);
/* No vmstate or reset required: device has no internal state */
}
static const TypeInfo stm32f100_soc_info = {