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@@ -0,0 +1,140 @@
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+/*
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+ * efi_selftest_event_groups
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+ *
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+ * Copyright (c) 2018 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 test checks the notification of group events and the
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+ * following services:
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+ * CreateEventEx, CloseEvent, SignalEvent, CheckEvent.
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+ */
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+
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+#include <efi_selftest.h>
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+
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+#define GROUP_SIZE 16
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+
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+static struct efi_boot_services *boottime;
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+static efi_guid_t event_group =
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+ EFI_GUID(0x2335905b, 0xc3b9, 0x4221, 0xa3, 0x71,
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+ 0x0e, 0x5b, 0x45, 0xc0, 0x56, 0x91);
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+
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+/*
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+ * Notification function, increments the notfication count if parameter
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+ * context is provided.
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+ *
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+ * @event notified event
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+ * @context pointer to the notification count
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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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+ unsigned int *count = context;
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+
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+ if (count)
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+ ++*count;
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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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+ * @handle: handle of the loaded image
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+ * @systable: system table
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+ * @return: EFI_ST_SUCCESS for success
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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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+ boottime = systable->boottime;
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+
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+ return EFI_ST_SUCCESS;
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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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+ * Create multiple events in an event group. Signal each event once and check
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+ * that all events are notified once in each round.
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+ *
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+ * @return: EFI_ST_SUCCESS for success
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+ */
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+static int execute(void)
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+{
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+ unsigned int counter[GROUP_SIZE] = {0};
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+ struct efi_event *events[GROUP_SIZE];
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+ size_t i, j;
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+ efi_status_t ret;
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+
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+ for (i = 0; i < GROUP_SIZE; ++i) {
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+ ret = boottime->create_event_ex(0, TPL_NOTIFY,
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+ notify, (void *)&counter[i],
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+ &event_group, &events[i]);
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+ if (ret != EFI_SUCCESS) {
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+ efi_st_error("Failed to create event\n");
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+ return EFI_ST_FAILURE;
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+ }
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+ }
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+
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+ for (i = 0; i < GROUP_SIZE; ++i) {
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+ ret = boottime->signal_event(events[i]);
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+ if (ret != EFI_SUCCESS) {
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+ efi_st_error("Failed to signal event\n");
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+ return EFI_ST_FAILURE;
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+ }
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+ for (j = 0; j < GROUP_SIZE; ++j) {
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+ if (counter[j] != i) {
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+ efi_st_printf("i %u, j %u, count %u\n",
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+ (unsigned int)i, (unsigned int)j,
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+ (unsigned int)counter[j]);
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+ efi_st_error(
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+ "Notification function was called\n");
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+ return EFI_ST_FAILURE;
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+ }
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+ /* Clear signaled state */
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+ ret = boottime->check_event(events[j]);
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+ if (ret != EFI_SUCCESS) {
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+ efi_st_error("Event was not signaled\n");
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+ return EFI_ST_FAILURE;
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+ }
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+ if (counter[j] != i) {
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+ efi_st_printf("i %u, j %u, count %u\n",
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+ (unsigned int)i, (unsigned int)j,
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+ (unsigned int)counter[j]);
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+ efi_st_error(
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+ "Notification function was called\n");
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+ return EFI_ST_FAILURE;
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+ }
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+ /* Call notification function */
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+ ret = boottime->check_event(events[j]);
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+ if (ret != EFI_NOT_READY) {
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+ efi_st_error(
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+ "Signaled state not cleared\n");
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+ return EFI_ST_FAILURE;
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+ }
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+ if (counter[j] != i + 1) {
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+ efi_st_printf("i %u, j %u, count %u\n",
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+ (unsigned int)i, (unsigned int)j,
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+ (unsigned int)counter[j]);
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+ efi_st_error(
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+ "Nofification function not called\n");
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+ return EFI_ST_FAILURE;
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+ }
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+ }
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+ }
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+
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+ for (i = 0; i < GROUP_SIZE; ++i) {
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+ ret = boottime->close_event(events[i]);
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+ if (ret != EFI_SUCCESS) {
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+ efi_st_error("Failed to close event\n");
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+ return EFI_ST_FAILURE;
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+ }
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+ }
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+
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+ return EFI_ST_SUCCESS;
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+}
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+
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+EFI_UNIT_TEST(eventgoups) = {
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+ .name = "event groups",
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+ .phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT,
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+ .setup = setup,
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+ .execute = execute,
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+};
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