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review.shift-gmbh.com / SHIFTPHONES / mainline / linux / 1c97f0a04c74196880f22a563134c8f6d0b9d752 / . / arch / x86 / include / asm / trampoline.h
blob: 4dde797c057800b0e377ac02eb16101430f865ef [file] [log] [blame]
H. Peter Anvin1965aae2008-10-22 22:26:29 -0700[diff] [blame]1#ifndef _ASM_X86_TRAMPOLINE_H
2#define _ASM_X86_TRAMPOLINE_H
Pavel Macheke44b7b72008-04-10 23:28:10 +0200[diff] [blame]3
4#ifndef __ASSEMBLY__
5
Rafael J. Wysocki3e1e9002008-12-08 00:50:22 +0100[diff] [blame]6#ifdef CONFIG_X86_TRAMPOLINE
Pavel Macheke44b7b72008-04-10 23:28:10 +0200[diff] [blame]7/*
8 * Trampoline 80x86 program as an array.
9 */
10extern const unsigned char trampoline_data [];
11extern const unsigned char trampoline_end [];
12extern unsigned char *trampoline_base;
13
14extern unsigned long init_rsp;
15extern unsigned long initial_code;
Joerg Roedelfd89a132010-08-16 14:38:33 +0200[diff] [blame]16extern unsigned long initial_page_table;
Tejun Heof32ff532009-01-13 20:41:35 +0900[diff] [blame]17extern unsigned long initial_gs;
Pavel Macheke44b7b72008-04-10 23:28:10 +0200[diff] [blame]18
Rafael J. Wysocki3e1e9002008-12-08 00:50:22 +0100[diff] [blame]19#define TRAMPOLINE_SIZE roundup(trampoline_end - trampoline_data, PAGE_SIZE)
Rafael J. Wysocki3e1e9002008-12-08 00:50:22 +0100[diff] [blame]20
Pavel Macheke44b7b72008-04-10 23:28:10 +0200[diff] [blame]21extern unsigned long setup_trampoline(void);
Joerg Roedelfd89a132010-08-16 14:38:33 +0200[diff] [blame]22extern void __init setup_trampoline_page_table(void);
Rafael J. Wysocki3e1e9002008-12-08 00:50:22 +0100[diff] [blame]23extern void __init reserve_trampoline_memory(void);
24#else
H. Peter Anvin8848a912010-08-18 11:42:23 -0700[diff] [blame]25static inline void setup_trampoline_page_table(void) {}
26static inline void reserve_trampoline_memory(void) {}
Rafael J. Wysocki3e1e9002008-12-08 00:50:22 +0100[diff] [blame]27#endif /* CONFIG_X86_TRAMPOLINE */
Pavel Macheke44b7b72008-04-10 23:28:10 +0200[diff] [blame]28
29#endif /* __ASSEMBLY__ */
30
H. Peter Anvin1965aae2008-10-22 22:26:29 -0700[diff] [blame]31#endif /* _ASM_X86_TRAMPOLINE_H */