a8ef2a2913
We use non-canonical CFI jump tables with CONFIG_CFI_CLANG, which means the compiler replaces function address references with the address of the function's CFI jump table entry. This results in __pa_symbol(function) returning the physical address of the jump table entry, which can lead to address space confusion since the jump table points to a virtual address. This change adds a __pa_function macro, which uses inline assembly to take the actual function address instead. Bug: 145210207 Change-Id: I14995e522365ad09a5c9bd676e1203b2b642cd5a Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
36 lines
926 B
C
36 lines
926 B
C
/*
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* CPU reset routines
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*
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* Copyright (C) 2015 Huawei Futurewei Technologies.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef _ARM64_CPU_RESET_H
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#define _ARM64_CPU_RESET_H
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#include <asm/virt.h>
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void __cpu_soft_restart(unsigned long el2_switch, unsigned long entry,
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unsigned long arg0, unsigned long arg1, unsigned long arg2);
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static inline void __noreturn cpu_soft_restart(unsigned long entry,
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unsigned long arg0,
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unsigned long arg1,
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unsigned long arg2)
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{
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typeof(__cpu_soft_restart) *restart;
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unsigned long el2_switch = !is_kernel_in_hyp_mode() &&
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is_hyp_mode_available();
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restart = (void *)__pa_function(__cpu_soft_restart);
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cpu_install_idmap();
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restart(el2_switch, entry, arg0, arg1, arg2);
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unreachable();
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}
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#endif
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