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>master
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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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#include <efi_selftest.h> |
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#define GROUP_SIZE 16 |
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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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* 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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if (count) |
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++*count; |
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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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return EFI_ST_SUCCESS; |
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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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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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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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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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return EFI_ST_SUCCESS; |
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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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