arch/x86/include/asm/trampoline.h

   1 #ifndef _ASM_X86_TRAMPOLINE_H
   2 #define _ASM_X86_TRAMPOLINE_H
   3
   4 #ifndef __ASSEMBLY__
   5
   6 #ifdef CONFIG_X86_TRAMPOLINE
   7 /*
   8  * Trampoline 80x86 program as an array.
   9  */
  10 extern const unsigned char trampoline_data [];
  11 extern const unsigned char trampoline_end  [];
  12 extern unsigned char *trampoline_base;
  13
  14 extern unsigned long init_rsp;
  15 extern unsigned long initial_code;
  16 extern unsigned long initial_gs;
  17
  18 #define TRAMPOLINE_SIZE roundup(trampoline_end - trampoline_data, PAGE_SIZE)
  19 #define TRAMPOLINE_BASE 0x6000
  20
  21 extern unsigned long setup_trampoline(void);
  22 extern void __init reserve_trampoline_memory(void);
  23 #else
  24 static inline void reserve_trampoline_memory(void) {};
  25 #endif /* CONFIG_X86_TRAMPOLINE */
  26
  27 #endif /* __ASSEMBLY__ */
  28
  29 #endif /* _ASM_X86_TRAMPOLINE_H */