tasks: run test_main() as a BSP task

common/kernel.c

@@ -31,6 +31,7 @@
 #include <percpu.h>
 #include <sched.h>
 #include <setup.h>
+#include <smp/smp.h>
 #ifdef KTF_PMU
 #include <perfmon/pfmlib.h>
 #endif
@@ -51,6 +52,8 @@ static void __noreturn echo_loop(void) {
 }
 
 void kernel_main(void) {
+    task_t *tests_task;
+
     printk("\nKTF - Kernel Test Framework!\n");
 
     zap_boot_mappings();
@@ -59,7 +62,12 @@ void kernel_main(void) {
         display_multiboot_mmap();
     }
 
-    test_main();
+    tests_task = new_task("tests", test_main, NULL);
+    schedule_task(tests_task, smp_processor_id());
+
+    run_tasks(smp_processor_id());
+
+    wait_for_all_tasks();
 
     printk("All tasks done.\n");
 

common/sched.c

@@ -41,8 +41,6 @@ static tid_t next_tid;
 
 static spinlock_t lock = SPINLOCK_INIT;
 
-static bool terminate;
-
 void init_tasks(void) {
     printk("Initializing tasks\n");
 
@@ -226,12 +224,24 @@ void wait_for_task_group(task_group_t group) {
             }
         }
         cpu_relax();
-    } while (busy && !terminate);
+    } while (busy);
 }
 
 void run_tasks(unsigned int cpu) {
-    do {
-        run_task(get_task_for_cpu(cpu));
+    task_t *task;
+
+    while ((task = get_task_for_cpu(cpu))) {
+        switch (task->state) {
+        case TASK_STATE_DONE:
+            printk("Task '%s' finished with result %lu\n", task->name, task->result);
+            destroy_task(task);
+            break;
+        case TASK_STATE_SCHEDULED:
+            run_task(task);
+            break;
+        default:
+            break;
+        }
         cpu_relax();
-    } while (!terminate);
+    }
 }

include/ktf.h

@@ -45,7 +45,7 @@ extern bool opt_debug;
 extern int usermode_call(user_func_t fn, void *fn_arg);
 
 extern void kernel_main(void) __noreturn;
-extern void test_main(void);
+extern void test_main(void *unused);
 
 #endif /* __ASSEMBLY__ */
 

tests/test.c

@@ -59,7 +59,7 @@ static get_next_test_result_t get_next_test(test_fn **out_test_fn, char **out_na
     return TESTS_DONE;
 }
 
-void test_main(void) {
+void test_main(void *unused) {
     char *name;
     test_fn *fn = NULL;
     unsigned n = 0;
@@ -75,7 +75,5 @@ void test_main(void) {
         n++;
     }
 
-    wait_for_all_tasks();
-
     printk("Tests completed: %u\n", n);
 }