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d8b2216c87
fix typos correct the header comment of efi_selftest_variables.c Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
51 lines
1.0 KiB
C
51 lines
1.0 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* efi_selftest_exception
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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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* Test the handling of exceptions by trying to execute an undefined
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* instruction.
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*/
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#include <efi_selftest.h>
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/**
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* undefined_instruction() - try to executed an undefined instruction
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*/
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static void undefined_instruction(void)
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{
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#if defined(CONFIG_ARM)
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/*
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* 0xe7f...f. is undefined in ARM mode
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* 0xde.. is undefined in Thumb mode
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*/
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asm volatile (".word 0xe7f7defb\n");
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#elif defined(CONFIG_RISCV)
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asm volatile (".word 0xffffffff\n");
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#elif defined(CONFIG_X86)
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asm volatile (".word 0xffff\n");
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#endif
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}
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/**
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* execute() - execute unit test
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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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undefined_instruction();
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efi_st_error("An undefined instruction exception was not raised\n");
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return EFI_ST_FAILURE;
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}
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EFI_UNIT_TEST(exception) = {
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.name = "exception",
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.phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT,
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.execute = execute,
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.on_request = true,
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};
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