123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204 |
- // SPDX-License-Identifier: GPL-2.0+
- /*
- * efi_selftest_events
- *
- * Copyright (c) 2017 Heinrich Schuchardt <xypron.glpk@gmx.de>
- *
- * This unit test uses timer events to check the implementation
- * of the following boottime services:
- * CreateEvent, CloseEvent, WaitForEvent, CheckEvent, SetTimer.
- */
- #include <efi_selftest.h>
- static struct efi_event *event_notify;
- static struct efi_event *event_wait;
- static unsigned int timer_ticks;
- static struct efi_boot_services *boottime;
- /*
- * Notification function, increments the notification count if parameter
- * context is provided.
- *
- * @event notified event
- * @context pointer to the notification count
- */
- static void EFIAPI notify(struct efi_event *event, void *context)
- {
- unsigned int *count = context;
- if (count)
- ++*count;
- }
- /*
- * Setup unit test.
- *
- * Create two timer events.
- * One with EVT_NOTIFY_SIGNAL, the other with EVT_NOTIFY_WAIT.
- *
- * @handle: handle of the loaded image
- * @systable: system table
- * @return: EFI_ST_SUCCESS for success
- */
- static int setup(const efi_handle_t handle,
- const struct efi_system_table *systable)
- {
- efi_status_t ret;
- boottime = systable->boottime;
- ret = boottime->create_event(EVT_TIMER | EVT_NOTIFY_SIGNAL,
- TPL_CALLBACK, notify, (void *)&timer_ticks,
- &event_notify);
- if (ret != EFI_SUCCESS) {
- efi_st_error("could not create event\n");
- return EFI_ST_FAILURE;
- }
- ret = boottime->create_event(EVT_TIMER | EVT_NOTIFY_WAIT,
- TPL_CALLBACK, notify, NULL, &event_wait);
- if (ret != EFI_SUCCESS) {
- efi_st_error("could not create event\n");
- return EFI_ST_FAILURE;
- }
- return EFI_ST_SUCCESS;
- }
- /*
- * Tear down unit test.
- *
- * Close the events created in setup.
- *
- * @return: EFI_ST_SUCCESS for success
- */
- static int teardown(void)
- {
- efi_status_t ret;
- if (event_notify) {
- ret = boottime->close_event(event_notify);
- event_notify = NULL;
- if (ret != EFI_SUCCESS) {
- efi_st_error("could not close event\n");
- return EFI_ST_FAILURE;
- }
- }
- if (event_wait) {
- ret = boottime->close_event(event_wait);
- event_wait = NULL;
- if (ret != EFI_SUCCESS) {
- efi_st_error("could not close event\n");
- return EFI_ST_FAILURE;
- }
- }
- return EFI_ST_SUCCESS;
- }
- /*
- * Execute unit test.
- *
- * Run a 10 ms periodic timer and check that it is called 10 times
- * while waiting for 100 ms single shot timer.
- *
- * Run a 100 ms single shot timer and check that it is called once
- * while waiting for 100 ms periodic timer for two periods.
- *
- * @return: EFI_ST_SUCCESS for success
- */
- static int execute(void)
- {
- efi_uintn_t index;
- efi_status_t ret;
- /* Set 10 ms timer */
- timer_ticks = 0;
- ret = boottime->set_timer(event_notify, EFI_TIMER_PERIODIC, 100000);
- if (ret != EFI_SUCCESS) {
- efi_st_error("Could not set timer\n");
- return EFI_ST_FAILURE;
- }
- /* Set 100 ms timer */
- ret = boottime->set_timer(event_wait, EFI_TIMER_RELATIVE, 1000000);
- if (ret != EFI_SUCCESS) {
- efi_st_error("Could not set timer\n");
- return EFI_ST_FAILURE;
- }
- /* Set some arbitrary non-zero value to make change detectable. */
- index = 5;
- ret = boottime->wait_for_event(1, &event_wait, &index);
- if (ret != EFI_SUCCESS) {
- efi_st_error("Could not wait for event\n");
- return EFI_ST_FAILURE;
- }
- ret = boottime->check_event(event_wait);
- if (ret != EFI_NOT_READY) {
- efi_st_error("Signaled state was not cleared.\n");
- efi_st_printf("ret = %u\n", (unsigned int)ret);
- return EFI_ST_FAILURE;
- }
- if (index != 0) {
- efi_st_error("WaitForEvent returned wrong index\n");
- return EFI_ST_FAILURE;
- }
- if (timer_ticks < 8 || timer_ticks > 12) {
- efi_st_printf("Notification count periodic: %u\n", timer_ticks);
- efi_st_error("Incorrect timing of events\n");
- return EFI_ST_FAILURE;
- }
- ret = boottime->set_timer(event_notify, EFI_TIMER_STOP, 0);
- if (ret != EFI_SUCCESS) {
- efi_st_error("Could not cancel timer\n");
- return EFI_ST_FAILURE;
- }
- /* Set 10 ms timer */
- timer_ticks = 0;
- ret = boottime->set_timer(event_notify, EFI_TIMER_RELATIVE, 100000);
- if (ret != EFI_SUCCESS) {
- efi_st_error("Could not set timer\n");
- return EFI_ST_FAILURE;
- }
- /* Set 100 ms timer */
- ret = boottime->set_timer(event_wait, EFI_TIMER_PERIODIC, 1000000);
- if (ret != EFI_SUCCESS) {
- efi_st_error("Could not set timer\n");
- return EFI_ST_FAILURE;
- }
- ret = boottime->wait_for_event(1, &event_wait, &index);
- if (ret != EFI_SUCCESS) {
- efi_st_error("Could not wait for event\n");
- return EFI_ST_FAILURE;
- }
- if (timer_ticks != 1) {
- efi_st_printf("Notification count single shot: %u\n",
- timer_ticks);
- efi_st_error("Single shot timer failed\n");
- return EFI_ST_FAILURE;
- }
- ret = boottime->wait_for_event(1, &event_wait, &index);
- if (ret != EFI_SUCCESS) {
- efi_st_error("Could not wait for event\n");
- return EFI_ST_FAILURE;
- }
- if (timer_ticks != 1) {
- efi_st_printf("Notification count stopped timer: %u\n",
- timer_ticks);
- efi_st_error("Stopped timer fired\n");
- return EFI_ST_FAILURE;
- }
- ret = boottime->set_timer(event_wait, EFI_TIMER_STOP, 0);
- if (ret != EFI_SUCCESS) {
- efi_st_error("Could not cancel timer\n");
- return EFI_ST_FAILURE;
- }
- return EFI_ST_SUCCESS;
- }
- EFI_UNIT_TEST(events) = {
- .name = "event services",
- .phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT,
- .setup = setup,
- .execute = execute,
- .teardown = teardown,
- };
|