efi_selftest: unit test for event groups
Supply a unit test for event groups.
Create multiple events in an event group. Signal each event once and check
that all events are notified once in each round.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
diff --git a/lib/efi_selftest/Makefile b/lib/efi_selftest/Makefile
index 2c44251..31b444f 100644
--- a/lib/efi_selftest/Makefile
+++ b/lib/efi_selftest/Makefile
@@ -19,6 +19,7 @@
efi_selftest_console.o \
efi_selftest_devicepath.o \
efi_selftest_events.o \
+efi_selftest_event_groups.o \
efi_selftest_exitbootservices.o \
efi_selftest_fdt.o \
efi_selftest_gop.o \
diff --git a/lib/efi_selftest/efi_selftest_event_groups.c b/lib/efi_selftest/efi_selftest_event_groups.c
new file mode 100644
index 0000000..79e4ea1
--- /dev/null
+++ b/lib/efi_selftest/efi_selftest_event_groups.c
@@ -0,0 +1,140 @@
+/*
+ * efi_selftest_event_groups
+ *
+ * Copyright (c) 2018 Heinrich Schuchardt <xypron.glpk@gmx.de>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ *
+ * This test checks the notification of group events and the
+ * following services:
+ * CreateEventEx, CloseEvent, SignalEvent, CheckEvent.
+ */
+
+#include <efi_selftest.h>
+
+#define GROUP_SIZE 16
+
+static struct efi_boot_services *boottime;
+static efi_guid_t event_group =
+ EFI_GUID(0x2335905b, 0xc3b9, 0x4221, 0xa3, 0x71,
+ 0x0e, 0x5b, 0x45, 0xc0, 0x56, 0x91);
+
+/*
+ * Notification function, increments the notfication 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.
+ *
+ * @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)
+{
+ boottime = systable->boottime;
+
+ return EFI_ST_SUCCESS;
+}
+
+/*
+ * Execute unit test.
+ *
+ * Create multiple events in an event group. Signal each event once and check
+ * that all events are notified once in each round.
+ *
+ * @return: EFI_ST_SUCCESS for success
+ */
+static int execute(void)
+{
+ unsigned int counter[GROUP_SIZE] = {0};
+ struct efi_event *events[GROUP_SIZE];
+ size_t i, j;
+ efi_status_t ret;
+
+ for (i = 0; i < GROUP_SIZE; ++i) {
+ ret = boottime->create_event_ex(0, TPL_NOTIFY,
+ notify, (void *)&counter[i],
+ &event_group, &events[i]);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("Failed to create event\n");
+ return EFI_ST_FAILURE;
+ }
+ }
+
+ for (i = 0; i < GROUP_SIZE; ++i) {
+ ret = boottime->signal_event(events[i]);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("Failed to signal event\n");
+ return EFI_ST_FAILURE;
+ }
+ for (j = 0; j < GROUP_SIZE; ++j) {
+ if (counter[j] != i) {
+ efi_st_printf("i %u, j %u, count %u\n",
+ (unsigned int)i, (unsigned int)j,
+ (unsigned int)counter[j]);
+ efi_st_error(
+ "Notification function was called\n");
+ return EFI_ST_FAILURE;
+ }
+ /* Clear signaled state */
+ ret = boottime->check_event(events[j]);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("Event was not signaled\n");
+ return EFI_ST_FAILURE;
+ }
+ if (counter[j] != i) {
+ efi_st_printf("i %u, j %u, count %u\n",
+ (unsigned int)i, (unsigned int)j,
+ (unsigned int)counter[j]);
+ efi_st_error(
+ "Notification function was called\n");
+ return EFI_ST_FAILURE;
+ }
+ /* Call notification function */
+ ret = boottime->check_event(events[j]);
+ if (ret != EFI_NOT_READY) {
+ efi_st_error(
+ "Signaled state not cleared\n");
+ return EFI_ST_FAILURE;
+ }
+ if (counter[j] != i + 1) {
+ efi_st_printf("i %u, j %u, count %u\n",
+ (unsigned int)i, (unsigned int)j,
+ (unsigned int)counter[j]);
+ efi_st_error(
+ "Nofification function not called\n");
+ return EFI_ST_FAILURE;
+ }
+ }
+ }
+
+ for (i = 0; i < GROUP_SIZE; ++i) {
+ ret = boottime->close_event(events[i]);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("Failed to close event\n");
+ return EFI_ST_FAILURE;
+ }
+ }
+
+ return EFI_ST_SUCCESS;
+}
+
+EFI_UNIT_TEST(eventgoups) = {
+ .name = "event groups",
+ .phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT,
+ .setup = setup,
+ .execute = execute,
+};