xref: /openbmc/u-boot/include/efi_selftest.h (revision 506abdb4)
1 /*
2  *  EFI application loader
3  *
4  *  Copyright (c) 2017 Heinrich Schuchardt <xypron.glpk@gmx.de>
5  *
6  *  SPDX-License-Identifier:     GPL-2.0+
7  */
8 
9 #ifndef _EFI_SELFTEST_H
10 #define _EFI_SELFTEST_H
11 
12 #include <common.h>
13 #include <efi.h>
14 #include <efi_api.h>
15 #include <linker_lists.h>
16 
17 #define EFI_ST_SUCCESS 0
18 #define EFI_ST_FAILURE 1
19 
20 /*
21  * Prints an error message.
22  *
23  * @...	format string followed by fields to print
24  */
25 #define efi_st_error(...) \
26 	(efi_st_printf("%s(%u):\nERROR: ", __FILE__, __LINE__), \
27 	efi_st_printf(__VA_ARGS__)) \
28 
29 /*
30  * A test may be setup and executed at boottime,
31  * it may be setup at boottime and executed at runtime,
32  * or it may be setup and executed at runtime.
33  */
34 enum efi_test_phase {
35 	EFI_EXECUTE_BEFORE_BOOTTIME_EXIT = 1,
36 	EFI_SETUP_BEFORE_BOOTTIME_EXIT,
37 	EFI_SETUP_AFTER_BOOTTIME_EXIT,
38 };
39 
40 extern struct efi_simple_text_output_protocol *con_out;
41 extern struct efi_simple_input_interface *con_in;
42 
43 /*
44  * Exit the boot services.
45  *
46  * The size of the memory map is determined.
47  * Pool memory is allocated to copy the memory map.
48  * The memory amp is copied and the map key is obtained.
49  * The map key is used to exit the boot services.
50  */
51 void efi_st_exit_boot_services(void);
52 
53 /*
54  * Print a pointer to an u16 string
55  *
56  * @pointer: pointer
57  * @buf: pointer to buffer address
58  * on return position of terminating zero word
59  */
60 void efi_st_printf(const char *fmt, ...)
61 		 __attribute__ ((format (__printf__, 1, 2)));
62 
63 /*
64  * Compare memory.
65  * We cannot use lib/string.c due to different CFLAGS values.
66  *
67  * @buf1:	first buffer
68  * @buf2:	second buffer
69  * @length:	number of bytes to compare
70  * @return:	0 if both buffers contain the same bytes
71  */
72 int efi_st_memcmp(const void *buf1, const void *buf2, size_t length);
73 
74 /*
75  * Reads an Unicode character from the input device.
76  *
77  * @return: Unicode character
78  */
79 u16 efi_st_get_key(void);
80 
81 /**
82  * struct efi_unit_test - EFI unit test
83  *
84  * An efi_unit_test provides a interface to an EFI unit test.
85  *
86  * @name:	name of unit test
87  * @phase:	specifies when setup and execute are executed
88  * @setup:	set up the unit test
89  * @teardown:	tear down the unit test
90  * @execute:	execute the unit test
91  */
92 struct efi_unit_test {
93 	const char *name;
94 	const enum efi_test_phase phase;
95 	int (*setup)(const efi_handle_t handle,
96 		     const struct efi_system_table *systable);
97 	int (*execute)(void);
98 	int (*teardown)(void);
99 };
100 
101 /* Declare a new EFI unit test */
102 #define EFI_UNIT_TEST(__name)						\
103 	ll_entry_declare(struct efi_unit_test, __name, efi_unit_test)
104 
105 #endif /* _EFI_SELFTEST_H */
106