On 08/11/2024 16.43, Philippe Mathieu-Daudé wrote:
Introduce an abstract machine parent class which defines the 'little_endian' property. Duplicate the current machine, which endian is tied to the binary endianness, to one big endian and a little endian machine; updating the machine description. Keep the current default machine for each binary. 'petalogix-s3adsp1800' machine is aliased as: - 'petalogix-s3adsp1800-be' on big-endian binary, - 'petalogix-s3adsp1800-le' on little-endian one. Reviewed-by: Richard Henderson <richard.henderson@xxxxxxxxxx> Signed-off-by: Philippe Mathieu-Daudé <philmd@xxxxxxxxxx> --- hw/microblaze/petalogix_s3adsp1800_mmu.c | 62 +++++++++++++++++++----- 1 file changed, 51 insertions(+), 11 deletions(-)
...
static const TypeInfo petalogix_s3adsp1800_machine_types[] = { { .name = TYPE_PETALOGIX_S3ADSP1800_MACHINE, .parent = TYPE_MACHINE, - .class_init = petalogix_s3adsp1800_machine_class_init, + .abstract = true, + .class_size = sizeof(PetalogixS3adsp1800MachineClass), + }, + { + .name = MACHINE_TYPE_NAME("petalogix-s3adsp1800-be"), + .parent = TYPE_PETALOGIX_S3ADSP1800_MACHINE, + .class_init = petalogix_s3adsp1800_machine_class_init_be, + }, + { + .name = MACHINE_TYPE_NAME("petalogix-s3adsp1800-le"), + .parent = TYPE_PETALOGIX_S3ADSP1800_MACHINE, + .class_init = petalogix_s3adsp1800_machine_class_init_le, }, };
Do we really want additional machine types for this? Can't we simply let the user set the machine property instead? (otherwise, all tests that run for each machine types (see qtest_cb_for_every_machine) will now be executed three times instead of only once). IMHO it should be sufficient to have a machine property for this and add proper documentation for the machine.
Thomas