kernel/arch/x86/boot/compressed/misc.h

   1 #ifndef BOOT_COMPRESSED_MISC_H
   2 #define BOOT_COMPRESSED_MISC_H
   3
   4 /*
   5  * Special hack: we have to be careful, because no indirections are allowed here,
   6  * and paravirt_ops is a kind of one. As it will only run in baremetal anyway,
   7  * we just keep it from happening. (This list needs to be extended when new
   8  * paravirt and debugging variants are added.)
   9  */
  10 #undef CONFIG_PARAVIRT
  11 #undef CONFIG_PARAVIRT_SPINLOCKS
  12 #undef CONFIG_KASAN
  13
  14 #include <linux/linkage.h>
  15 #include <linux/screen_info.h>
  16 #include <linux/elf.h>
  17 #include <linux/io.h>
  18 #include <asm/page.h>
  19 #include <asm/boot.h>
  20 #include <asm/bootparam.h>
  21 #include <asm/bootparam_utils.h>
  22
  23 #define BOOT_BOOT_H
  24 #include "../ctype.h"
  25
  26 #ifdef CONFIG_X86_64
  27 #define memptr long
  28 #else
  29 #define memptr unsigned
  30 #endif
  31
  32 /* misc.c */
  33 extern memptr free_mem_ptr;
  34 extern memptr free_mem_end_ptr;
  35 extern struct boot_params *real_mode;           /* Pointer to real-mode data */
  36 void __putstr(const char *s);
  37 #define error_putstr(__x)  __putstr(__x)
  38
  39 #ifdef CONFIG_X86_VERBOSE_BOOTUP
  40
  41 #define debug_putstr(__x)  __putstr(__x)
  42
  43 #else
  44
  45 static inline void debug_putstr(const char *s)
  46 { }
  47
  48 #endif
  49
  50 #if CONFIG_EARLY_PRINTK || CONFIG_RANDOMIZE_BASE
  51 /* cmdline.c */
  52 int cmdline_find_option(const char *option, char *buffer, int bufsize);
  53 int cmdline_find_option_bool(const char *option);
  54 #endif
  55
  56
  57 #if CONFIG_RANDOMIZE_BASE
  58 /* aslr.c */
  59 unsigned char *choose_kernel_location(struct boot_params *boot_params,
  60                                       unsigned char *input,
  61                                       unsigned long input_size,
  62                                       unsigned char *output,
  63                                       unsigned long output_size);
  64 /* cpuflags.c */
  65 bool has_cpuflag(int flag);
  66 #else
  67 static inline
  68 unsigned char *choose_kernel_location(struct boot_params *boot_params,
  69                                       unsigned char *input,
  70                                       unsigned long input_size,
  71                                       unsigned char *output,
  72                                       unsigned long output_size)
  73 {
  74         return output;
  75 }
  76 #endif
  77
  78 #ifdef CONFIG_EARLY_PRINTK
  79 /* early_serial_console.c */
  80 extern int early_serial_base;
  81 void console_init(void);
  82 #else
  83 static const int early_serial_base;
  84 static inline void console_init(void)
  85 { }
  86 #endif
  87
  88 #endif