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Tsirkin" To: qemu-devel@nongnu.org Cc: Peter Maydell , Zhao Liu , Igor Mammedov , Ani Sinha Subject: [PULL 24/83] tests: bios-tables-test: Add test for smbios type4 thread count Message-ID: <706fa69cfc9f3a4cf7677583cce31d742c0d2712.1697644299.git.mst@redhat.com> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-Mailer: git-send-email 2.27.0.106.g8ac3dc51b1 X-Mutt-Fcc: =sent 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=170.10.133.124; envelope-from=mst@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_H3=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: 1697645399583100003 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Zhao Liu This tests the commit 7298fd7de5551 ("hw/smbios: Fix thread count in type4"). In smbios_build_type_4_table() (hw/smbios/smbios.c), if the number of threads in the socket is not more than 255, then smbios type4 table encodes threads per socket into the thread count field. So for the topology in this case, there're the following considerations: 1. threads per socket should be not more than 255 to ensure we could cover the thread count field. 2. The original bug was that threads per socket was miscalculated, so now we should configure as many topology levels as possible (mutiple sockets & dies, no module since x86 hasn't supported it) to cover more general topology scenarios, to ensure that the threads per socket encoded in the thread count field is correct. 3. For the more general topology, we should also add "cpus" (presented threads for machine) and "maxcpus" (total threads for machine) to make sure that configuring unpluged CPUs in smp (cpus < maxcpus) does not affect the correctness of threads per socket for thread count field. Based on these considerations, select the topology as the follow: -smp cpus=3D15,maxcpus=3D54,sockets=3D2,dies=3D3,cores=3D3,threads=3D3 The expected thread count =3D threads per socket =3D threads (3) * cores (3) * dies (3) =3D 27. Suggested-by: Igor Mammedov Signed-off-by: Zhao Liu Acked-by: Igor Mammedov Message-Id: <20230928125943.1816922-13-zhao1.liu@linux.intel.com> Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- tests/qtest/bios-tables-test.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/tests/qtest/bios-tables-test.c b/tests/qtest/bios-tables-test.c index f3af20cf2c..395ed7f9ff 100644 --- a/tests/qtest/bios-tables-test.c +++ b/tests/qtest/bios-tables-test.c @@ -95,6 +95,7 @@ typedef struct { uint16_t smbios_cpu_curr_speed; uint8_t smbios_core_count; uint16_t smbios_core_count2; + uint8_t smbios_thread_count; uint8_t *required_struct_types; int required_struct_types_len; int type4_count; @@ -640,6 +641,7 @@ static void smbios_cpu_test(test_data *data, uint32_t a= ddr, SmbiosEntryPointType ep_type) { uint8_t core_count, expected_core_count =3D data->smbios_core_count; + uint8_t thread_count, expected_thread_count =3D data->smbios_thread_co= unt; uint16_t speed, expected_speed[2]; uint16_t core_count2, expected_core_count2 =3D data->smbios_core_count= 2; int offset[2]; @@ -663,6 +665,13 @@ static void smbios_cpu_test(test_data *data, uint32_t = addr, g_assert_cmpuint(core_count, =3D=3D, expected_core_count); } =20 + thread_count =3D qtest_readb(data->qts, + addr + offsetof(struct smbios_type_4, thread_count)= ); + + if (expected_thread_count) { + g_assert_cmpuint(thread_count, =3D=3D, expected_thread_count); + } + if (ep_type =3D=3D SMBIOS_ENTRY_POINT_TYPE_64) { core_count2 =3D qtest_readw(data->qts, addr + offsetof(struct smbios_type_4, core_count= 2)); @@ -1033,6 +1042,22 @@ static void test_acpi_q35_tcg_core_count2(void) free_test_data(&data); } =20 +static void test_acpi_q35_tcg_thread_count(void) +{ + test_data data =3D { + .machine =3D MACHINE_Q35, + .variant =3D ".thread-count", + .required_struct_types =3D base_required_struct_types, + .required_struct_types_len =3D ARRAY_SIZE(base_required_struct_typ= es), + .smbios_thread_count =3D 27, + }; + + test_acpi_one("-machine smbios-entry-point-type=3D64 " + "-smp cpus=3D15,maxcpus=3D54,sockets=3D2,dies=3D3,cores= =3D3,threads=3D3", + &data); + free_test_data(&data); +} + static void test_acpi_q35_tcg_bridge(void) { test_data data =3D {}; @@ -2201,6 +2226,8 @@ int main(int argc, char *argv[]) test_acpi_q35_tcg_core_count); qtest_add_func("acpi/q35/core-count2", test_acpi_q35_tcg_core_count2); + qtest_add_func("acpi/q35/thread-count", + test_acpi_q35_tcg_thread_count); } if (qtest_has_device("virtio-iommu-pci")) { qtest_add_func("acpi/q35/viot", test_acpi_q35_viot); --=20 MST