Re: [PATCH-for-8.2? 3/6] hw/arm/stm32f100: Report error when incorrect CPU is used

[Philippe Mathieu-Daudé]

On 16/11/23 00:21, Philippe Mathieu-Daudé wrote:
> 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

With [2] from cover applied, this becomes:

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

> 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.
>
> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> ---
>   include/hw/arm/stm32f100_soc.h | 4 ----
>   hw/arm/stm32f100_soc.c         | 9 ++-------
>   hw/arm/stm32vldiscovery.c      | 7 ++++++-
>   3 files changed, 8 insertions(+), 12 deletions(-)

[2] 
20231114235628.534334-1-gshan@redhat.com/">https://lore.kernel.org/qemu-devel/20231114235628.534334-1-gshan@redhat.com/