Re: [PATCH v19 15/21] tests/avocado: s390x cpu topology polarisation

[Cédric Le Goater]

On 4/3/23 18:28, Pierre Morel wrote:
> Polarization is changed on a request from the guest.
> Let's verify the polarization is accordingly set by QEMU.
>
> Signed-off-by: Pierre Morel <pmorel@linux.ibm.com>
> ---
>   tests/avocado/s390_topology.py | 38 +++++++++++++++++++++++++++++++++-
>   1 file changed, 37 insertions(+), 1 deletion(-)
>
> diff --git a/tests/avocado/s390_topology.py b/tests/avocado/s390_topology.py
> index 38e9cc4f16..a4bbbc2cb6 100644
> --- a/tests/avocado/s390_topology.py
> +++ b/tests/avocado/s390_topology.py
> @@ -107,6 +107,15 @@ def kernel_init(self):
>                            '-initrd', initrd_path,
>                            '-append', kernel_command_line)
>   
> +    def system_init(self):
> +        self.log.info("System init")
> +        exec_command(self, 'mount proc -t proc /proc')
> +        time.sleep(0.2)
> +        exec_command(self, 'mount sys -t sysfs /sys')
> +        time.sleep(0.2)
> +        exec_command_and_wait_for_pattern(self,
> +                '/bin/cat /sys/devices/system/cpu/dispatching', '0')
> +
>       def test_single(self):
>           self.kernel_init()
>           self.vm.launch()
> @@ -116,7 +125,6 @@ def test_single(self):
>       def test_default(self):
>           """
>           This test checks the implicite topology.
> -

unwanted change I guess ?


>           :avocado: tags=arch:s390x
>           :avocado: tags=machine:s390-ccw-virtio
>           """
> @@ -194,3 +202,31 @@ def test_hotplug_full(self):
>           self.wait_for_console_pattern('no job control')
>           self.check_topology(1, 1, 1, 1, 'medium', False)
>   
> +    def test_polarisation(self):
> +        """
> +        This test verifies that QEMU modifies the entitlement change after
> +        several guest polarization change requests.
> +
> +        :avocado: tags=arch:s390x
> +        :avocado: tags=machine:s390-ccw-virtio
> +        """
> +        self.kernel_init()
> +        self.vm.launch()
> +        self.wait_for_console_pattern('no job control')
> +
> +        self.system_init()
> +        self.check_topology(0, 0, 0, 0, 'medium', False)
> +
> +        exec_command(self, 'echo 1 > /sys/devices/system/cpu/dispatching')
> +        time.sleep(0.2)
> +        exec_command_and_wait_for_pattern(self,
> +                '/bin/cat /sys/devices/system/cpu/dispatching', '1')
> +
> +        self.check_topology(0, 0, 0, 0, 'medium', False)
> +
> +        exec_command(self, 'echo 0 > /sys/devices/system/cpu/dispatching')
> +        time.sleep(0.2)
> +        exec_command_and_wait_for_pattern(self,
> +                '/bin/cat /sys/devices/system/cpu/dispatching', '0')
> +
> +        self.check_topology(0, 0, 0, 0, 'medium', False)