diff --git a/tests/qtest/bios-tables-test.c b/tests/qtest/bios-tables-test.c
index 395ed7f9ff..71af5cf69f 100644
--- a/tests/qtest/bios-tables-test.c
+++ b/tests/qtest/bios-tables-test.c
@@ -96,6 +96,7 @@ typedef struct {
     uint8_t smbios_core_count;
     uint16_t smbios_core_count2;
     uint8_t smbios_thread_count;
+    uint16_t smbios_thread_count2;
     uint8_t *required_struct_types;
     int required_struct_types_len;
     int type4_count;
@@ -644,6 +645,7 @@ static void smbios_cpu_test(test_data *data, uint32_t addr,
     uint8_t thread_count, expected_thread_count = data->smbios_thread_count;
     uint16_t speed, expected_speed[2];
     uint16_t core_count2, expected_core_count2 = data->smbios_core_count2;
+    uint16_t thread_count2, expected_thread_count2 = data->smbios_thread_count2;
     int offset[2];
     int i;
 
@@ -680,6 +682,15 @@ static void smbios_cpu_test(test_data *data, uint32_t addr,
         if (expected_core_count == 0xFF && expected_core_count2) {
             g_assert_cmpuint(core_count2, ==, expected_core_count2);
         }
+
+        thread_count2 = qtest_readw(data->qts,
+                            addr + offsetof(struct smbios_type_4,
+                            thread_count2));
+
+        /* Thread Count has reached its limit, checking Thread Count 2 */
+        if (expected_thread_count == 0xFF && expected_thread_count2) {
+            g_assert_cmpuint(thread_count2, ==, expected_thread_count2);
+        }
     }
 }
 
@@ -1050,6 +1061,7 @@ static void test_acpi_q35_tcg_thread_count(void)
         .required_struct_types = base_required_struct_types,
         .required_struct_types_len = ARRAY_SIZE(base_required_struct_types),
         .smbios_thread_count = 27,
+        .smbios_thread_count2 = 27,
     };
 
     test_acpi_one("-machine smbios-entry-point-type=64 "
@@ -1058,6 +1070,23 @@ static void test_acpi_q35_tcg_thread_count(void)
     free_test_data(&data);
 }
 
+static void test_acpi_q35_tcg_thread_count2(void)
+{
+    test_data data = {
+        .machine = MACHINE_Q35,
+        .variant = ".thread-count2",
+        .required_struct_types = base_required_struct_types,
+        .required_struct_types_len = ARRAY_SIZE(base_required_struct_types),
+        .smbios_thread_count = 0xFF,
+        .smbios_thread_count2 = 260,
+    };
+
+    test_acpi_one("-machine smbios-entry-point-type=64 "
+                  "-smp cpus=210,maxcpus=260,dies=2,cores=65,threads=2",
+                  &data);
+    free_test_data(&data);
+}
+
 static void test_acpi_q35_tcg_bridge(void)
 {
     test_data data = {};
@@ -2228,6 +2257,8 @@ int main(int argc, char *argv[])
                                test_acpi_q35_tcg_core_count2);
                 qtest_add_func("acpi/q35/thread-count",
                                test_acpi_q35_tcg_thread_count);
+                qtest_add_func("acpi/q35/thread-count2",
+                               test_acpi_q35_tcg_thread_count2);
             }
             if (qtest_has_device("virtio-iommu-pci")) {
                 qtest_add_func("acpi/q35/viot", test_acpi_q35_viot);