mirror of
https://github.com/openharmony/kernel_linux_common_modules.git
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Haryslee
120 lines
3.0 KiB
C
120 lines
3.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2023 Huawei Device Co., Ltd.
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*/
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#ifndef __POINTER_AUTH_CONTEXT_H
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#define __POINTER_AUTH_CONTEXT_H
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struct pt_regs;
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enum pac_pt_regs {
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REGS_X16 = 0,
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REGS_X17,
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REGS_LR,
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REGS_SP,
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REGS_PC,
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REGS_PSTATE,
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};
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void sign_thread_context(void *cpu_context);
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void auth_thread_context(void *cpu_context);
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void sign_exception_context_asm(void *regs);
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void auth_exception_context_asm(void *regs);
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int set_exception_context_register_asm(void *regs, int offset, u64 val);
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#ifdef CONFIG_COMPAT
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void sign_compat_exception_context_asm(void *regs);
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void auth_compat_exception_context_asm(void *regs);
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int set_compat_exception_context_register_asm(void *regs, int offset, u64 val);
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#else
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static inline void sign_compat_exception_context_asm(void *regs)
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{
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}
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static inline void auth_compat_exception_context_asm(void *regs)
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{
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}
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static inline int set_compat_exception_context_register_asm(void *regs, int offset, u64 val)
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{
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return 0;
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}
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#endif
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static inline void sign_compat_exception_context_unsafe(void *regs)
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{
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return sign_compat_exception_context_asm(regs);
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}
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static inline void auth_compat_exception_context_unsafe(void *regs)
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{
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return auth_compat_exception_context_asm(regs);
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}
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static inline void sign_exception_context_unsafe(void *regs)
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{
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if (compat_user_mode((struct pt_regs *)regs)) {
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sign_compat_exception_context_asm(regs);
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} else {
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sign_exception_context_asm(regs);
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}
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}
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static inline void auth_exception_context_unsafe(void *regs)
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{
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if (compat_user_mode((struct pt_regs *)regs)) {
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auth_compat_exception_context_asm(regs);
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} else {
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auth_exception_context_asm(regs);
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}
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}
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#define resign_compat_exception_context_start(regs) \
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do { \
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unsigned long irq_flags; \
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local_irq_save(irq_flags); \
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auth_compat_exception_context_asm(regs);
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#define resign_compat_exception_context_end(regs) \
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sign_compat_exception_context_asm(regs); \
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local_irq_restore(irq_flags); \
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} while (0)
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#define resign_exception_context_start(regs) \
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do { \
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unsigned long irq_flags; \
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local_irq_save(irq_flags); \
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auth_exception_context_unsafe(regs);
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#define resign_exception_context_end(regs) \
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sign_exception_context_unsafe(regs); \
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local_irq_restore(irq_flags); \
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} while (0)
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#define sign_exception_context_start(regs) \
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do { \
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unsigned long irq_flags; \
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local_irq_save(irq_flags);
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#define sign_exception_context_end(regs) \
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sign_exception_context_unsafe(regs); \
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local_irq_restore(irq_flags); \
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} while (0)
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void sign_compat_exception_context(void *regs);
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void auth_compat_exception_context(void *regs);
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void sign_exception_context(void *regs);
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void auth_exception_context(void *regs);
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int set_compat_exception_context_register(void *regs, enum pac_pt_regs regs_enum, u64 val);
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void set_compat_exception_context_register_index(struct pt_regs *regs, int index, u64 val);
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int set_exception_context_register(void *regs, enum pac_pt_regs regs_enum, u64 val);
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void set_exception_context_register_index(struct pt_regs *regs, int index, u64 val);
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#endif /* __POINTER_AUTH_CONTEXT_H */
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