Re: [RFC PATCH v4 07/15] tests/qtest: Adjust qom-test to always set a -cpu option

[Fabiano Rosas <farosas@suse.de>]

Richard Henderson <richard.henderson@linaro.org> writes:

> On 1/19/23 03:54, Fabiano Rosas wrote:
>> Start using the qtest_get_machine_args function, which explicitly
>> sets the -cpu option according to the machine default.
>> 
>> Signed-off-by: Fabiano Rosas <farosas@suse.de>
>> ---
>>   tests/qtest/qom-test.c | 19 +++++++++++++++++--
>>   1 file changed, 17 insertions(+), 2 deletions(-)
>> 
>> diff --git a/tests/qtest/qom-test.c b/tests/qtest/qom-test.c
>> index d380261f8f..462e3c4281 100644
>> --- a/tests/qtest/qom-test.c
>> +++ b/tests/qtest/qom-test.c
>> @@ -78,14 +78,28 @@ static void test_properties(QTestState *qts, const char *path, bool recurse)
>>       qobject_unref(response);
>>   }
>>   
>> +static const char *arch_get_cpu(const char *machine)
>> +{
>> +    const char *arch = qtest_get_arch();
>> +
>> +    if (g_str_equal(arch, "aarch64")) {
>> +        if (!strncmp(machine, "virt", 4)) {
>> +            return "cortex-a57";
>
> I'm not keen on hard-coding cortex-a57 instead of max, even if they happen to evaluate to 
> mostly the same thing currently for -accel qtest.

Ok.

> Nor am I keen on replicating this N times across N qtest files.
> Better perhaps in libqtest.c, or something?
> Or even directly in qtest_get_machine_args()?

Ah right, this was a callback in a previous version so there was no
"cpu" parameter to qtest_get_machine_args. Now I could indeed move
arch_get_cpu into libqtest.c somewhere.