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@@ -0,0 +1,106 @@
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+/*
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+ * efi_selftest_events
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+ *
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+ * Copyright (c) 2017 Heinrich Schuchardt <xypron.glpk@gmx.de>
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+ *
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+ * SPDX-License-Identifier: GPL-2.0+
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+ *
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+ * This unit test checks that the notification function of an
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+ * EVT_SIGNAL_EXIT_BOOT_SERVICES event is called exactly once.
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+ */
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+
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+#include <efi_selftest.h>
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+
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+static struct efi_boot_services *boottime;
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+static struct efi_event *event_notify;
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+static unsigned int counter;
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+
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+/*
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+ * Notification function, increments a counter.
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+ *
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+ * @event notified event
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+ * @context pointer to the counter
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+ */
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+static void EFIAPI notify(struct efi_event *event, void *context)
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+{
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+ if (!context)
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+ return;
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+ ++*(unsigned int *)context;
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+}
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+
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+/*
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+ * Setup unit test.
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+ *
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+ * Create an EVT_SIGNAL_EXIT_BOOT_SERVICES event.
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+ *
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+ * @handle: handle of the loaded image
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+ * @systable: system table
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+ */
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+static int setup(const efi_handle_t handle,
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+ const struct efi_system_table *systable)
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+{
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+ efi_status_t ret;
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+
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+ boottime = systable->boottime;
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+
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+ counter = 0;
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+ ret = boottime->create_event(EVT_SIGNAL_EXIT_BOOT_SERVICES,
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+ TPL_CALLBACK, notify, (void *)&counter,
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+ &event_notify);
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+ if (ret != EFI_SUCCESS) {
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+ efi_st_error("could not create event\n");
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+ return 1;
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+ }
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+ return 0;
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+}
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+
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+/*
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+ * Tear down unit test.
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+ *
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+ * Close the event created in setup.
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+ */
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+static int teardown(void)
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+{
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+ efi_status_t ret;
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+
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+ if (event_notify) {
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+ ret = boottime->close_event(event_notify);
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+ event_notify = NULL;
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+ if (ret != EFI_SUCCESS) {
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+ efi_st_error("could not close event\n");
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+ return 1;
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+ }
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+ }
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+ return 0;
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+}
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+
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+/*
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+ * Execute unit test.
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+ *
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+ * Check that the notification function of the EVT_SIGNAL_EXIT_BOOT_SERVICES
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+ * event has been called.
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+ *
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+ * Call ExitBootServices again and check that the notification function is
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+ * not called again.
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+ */
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+static int execute(void)
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+{
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+ if (counter != 1) {
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+ efi_st_error("ExitBootServices was not notified");
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+ return 1;
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+ }
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+ efi_st_exit_boot_services();
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+ if (counter != 1) {
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+ efi_st_error("ExitBootServices was notified twice");
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+ return 1;
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+ }
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+ return 0;
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+}
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+
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+EFI_UNIT_TEST(exitbootservices) = {
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+ .name = "ExitBootServices",
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+ .phase = EFI_SETUP_BEFORE_BOOTTIME_EXIT,
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+ .setup = setup,
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+ .execute = execute,
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+ .teardown = teardown,
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+};
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