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bh=mOY3fpgB5ggOII78QIxqnK0sbWPRh2pjhTv8MC8lKs4=; b=axaTFEKHLIi1IjNbzqO0DJMxAW0nqlMG4It4qBHiFGp1xO3CuPpOO92tlZn949uVihCBaG Nyple4DyBqMIZwFWsGDcct9kKmtTShLCy4hIuCuA0zbOdRt0Z+irXPuP8uP8PK8Kl9HI9R 3KwEeFH6sxvoEag0bQ1RW5TYPq28QuU= X-MC-Unique: fN2-SotxPfe1G6PVjtiMMQ-1 From: Thomas Huth To: qemu-devel@nongnu.org Cc: Stefan Hajnoczi , qemu-s390x@nongnu.org, Nina Schoetterl-Glausch Subject: [PULL 16/25] tests/avocado: s390x cpu topology polarization Date: Wed, 18 Oct 2023 15:07:07 +0200 Message-ID: <20231018130716.286638-17-thuth@redhat.com> In-Reply-To: <20231018130716.286638-1-thuth@redhat.com> References: <20231018130716.286638-1-thuth@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.4 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=thuth@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1697634851092100001 Content-Type: text/plain; charset="utf-8" From: Pierre Morel Polarization is changed on a request from the guest. Let's verify the polarization is accordingly set by QEMU. Signed-off-by: Pierre Morel Co-developed-by: Nina Schoetterl-Glausch Reviewed-by: Thomas Huth Reviewed-by: Nina Schoetterl-Glausch Signed-off-by: Nina Schoetterl-Glausch Message-ID: <20231016183925.2384704-17-nsg@linux.ibm.com> Signed-off-by: Thomas Huth --- tests/avocado/s390_topology.py | 45 ++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) diff --git a/tests/avocado/s390_topology.py b/tests/avocado/s390_topology.py index 9078b45281..8166cee134 100644 --- a/tests/avocado/s390_topology.py +++ b/tests/avocado/s390_topology.py @@ -41,6 +41,7 @@ class S390CPUTopology(QemuSystemTest): The polarization is changed on a request from the guest. """ timeout =3D 90 + event_timeout =3D 10 =20 KERNEL_COMMON_COMMAND_LINE =3D ('printk.time=3D0 ' 'root=3D/dev/ram ' @@ -103,6 +104,14 @@ def kernel_init(self): '-initrd', initrd_path, '-append', kernel_command_line) =20 + def system_init(self): + self.log.info("System init") + exec_command_and_wait_for_pattern(self, + """ mount proc -t proc /proc; + mount sys -t sysfs /sys; + cat /sys/devices/system/cpu/dispatching """, + '0') + def test_single(self): """ This test checks the simplest topology with a single CPU. @@ -198,3 +207,39 @@ def test_dash_device(self): self.check_topology(3, 1, 1, 1, 'high', False) self.check_topology(4, 1, 1, 1, 'medium', False) self.check_topology(5, 2, 1, 1, 'high', True) + + + def guest_set_dispatching(self, dispatching): + exec_command(self, + f'echo {dispatching} > /sys/devices/system/cpu/dispatching= ') + self.vm.event_wait('CPU_POLARIZATION_CHANGE', self.event_timeout) + exec_command_and_wait_for_pattern(self, + 'cat /sys/devices/system/cpu/dispatching', dispatching) + + + def test_polarization(self): + """ + This test verifies that QEMU modifies the entitlement change after + several guest polarization change requests. + + :avocado: tags=3Darch:s390x + :avocado: tags=3Dmachine:s390-ccw-virtio + """ + self.kernel_init() + self.vm.launch() + self.wait_until_booted() + + self.system_init() + res =3D self.vm.qmp('query-s390x-cpu-polarization') + self.assertEqual(res['return']['polarization'], 'horizontal') + self.check_topology(0, 0, 0, 0, 'medium', False) + + self.guest_set_dispatching('1'); + res =3D self.vm.qmp('query-s390x-cpu-polarization') + self.assertEqual(res['return']['polarization'], 'vertical') + self.check_topology(0, 0, 0, 0, 'medium', False) + + self.guest_set_dispatching('0'); + res =3D self.vm.qmp('query-s390x-cpu-polarization') + self.assertEqual(res['return']['polarization'], 'horizontal') + self.check_topology(0, 0, 0, 0, 'medium', False) --=20 2.41.0