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[J-u-boot.git] / lib / efi_selftest / efi_selftest_miniapp_exception.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * efi_selftest_miniapp_return
4  *
5  * Copyright (c) 2019 Heinrich Schuchardt
6  *
7  * This EFI application triggers an exception.
8  */
9
10 #include <efi_api.h>
11 #include <host_arch.h>
12
13 /*
14  * Entry point of the EFI application.
15  *
16  * @handle      handle of the loaded image
17  * @systable    system table
18  * Return:      status code
19  */
20 efi_status_t EFIAPI efi_main(efi_handle_t handle,
21                              struct efi_system_table *systable)
22 {
23         struct efi_simple_text_output_protocol *con_out = systable->con_out;
24
25         con_out->output_string(con_out,
26                                u"EFI application triggers exception.\n");
27
28 #if defined(CONFIG_ARM)
29         /*
30          * 0xe7f...f.   is undefined in ARM mode
31          * 0xde..       is undefined in Thumb mode
32          */
33         asm volatile (".word 0xe7f7defb\n");
34 #elif defined(CONFIG_RISCV)
35         asm volatile (".word 0xffffffff\n");
36 #elif defined(CONFIG_X86)
37         asm volatile (".word 0xffff\n");
38 #elif defined(CONFIG_SANDBOX)
39 #if (HOST_ARCH == HOST_ARCH_ARM || HOST_ARCH == HOST_ARCH_AARCH64)
40         asm volatile (".word 0xe7f7defb\n");
41 #elif (HOST_ARCH == HOST_ARCH_RISCV32 || HOST_ARCH == HOST_ARCH_RISCV64)
42         asm volatile (".word 0xffffffff\n");
43 #elif (HOST_ARCH == HOST_ARCH_X86 || HOST_ARCH == HOST_ARCH_X86_64)
44         asm volatile (".word 0xffff\n");
45 #endif
46 #endif
47         con_out->output_string(con_out, u"Exception not triggered.\n");
48         return EFI_ABORTED;
49 }
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