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From: David Hildenbrand <david@redhat.com>
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Date: Mon, 18 Feb 2019 09:46:25 +0100
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Subject: Re: [Qemu-devel] [PATCH v2 5/6] tests/device-plug: Add CPU core
 unplug request test for spapr
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To: Thomas Huth <thuth@redhat.com>, qemu-devel@nongnu.org
Cc: qemu-s390x@nongnu.org, qemu-ppc@nongnu.org, Paolo Bonzini <pbonzini@redhat.com>, Peter Crosthwaite <crosthwaite.peter@gmail.com>, Richard Henderson <rth@twiddle.net>, David Gibson <david@gibson.dropbear.id.au>, Laurent Vivier <lvivier@redhat.com>, Cornelia Huck <cohuck@redhat.com>, Collin Walling <walling@linux.ibm.com>, Pierre Morel <pmorel@linux.ibm.com>, "Michael S . Tsirkin" <mst@redhat.com>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Greg Kurz <groug@kaod.org>, Igor Mammedov <imammedo@redhat.com>, Eduardo Habkost <ehabkost@redhat.com>

On 15.02.19 16:35, Thomas Huth wrote:
> On 15/02/2019 14.30, David Hildenbrand wrote:
>> We can easily test this, just like PCI.
> 
> ... maybe add a sentence why this is only done for spapr, and not for
> s390x and x86 ?

Yes, will do!

> 
>> Signed-off-by: David Hildenbrand <david@redhat.com>
>> ---
>>  tests/device-plug-test.c | 20 ++++++++++++++++++++
>>  1 file changed, 20 insertions(+)
>>
>> diff --git a/tests/device-plug-test.c b/tests/device-plug-test.c
>> index 6f7255552a..ec6cb5de7b 100644
>> --- a/tests/device-plug-test.c
>> +++ b/tests/device-plug-test.c
>> @@ -101,6 +101,21 @@ static void test_ccw_unplug(void)
>>      qtest_quit(qtest);
>>  }
>>  
>> +static void test_spapr_cpu_unplug_request(void)
>> +{
>> +    QTestState *qtest;
>> +
>> +    qtest = qtest_initf("-cpu power9_v2.0 -smp 1,maxcpus=2 "
>> +                        "-device power9_v2.0-spapr-cpu-core,core-id=1,id=dev0");
>> +
>> +    /* similar to test_pci_unplug_request */
>> +    device_del_request(qtest, "dev0");
>> +    system_reset(qtest);
>> +    wait_device_deleted_event(qtest, "dev0");
>> +
>> +    qtest_quit(qtest);
>> +}
> 
> My initial thought was: This should go into tests/cpu-plug-test.c
> instead ... but since you need the functions that you defined here,
> looks like this is the better place here...

Yes, I consider the tests in here to test basic unplug (+later plug)
functionality for all kinds of devices. Very specific tests (e.g.
testing different cpu plug combinations) should be handled in different
files.

Thanks!

-- 

Thanks,

David / dhildenb