1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef BOOT_COMPRESSED_MISC_H 3 #define BOOT_COMPRESSED_MISC_H 4 5 /* 6 * Special hack: we have to be careful, because no indirections are allowed here, 7 * and paravirt_ops is a kind of one. As it will only run in baremetal anyway, 8 * we just keep it from happening. (This list needs to be extended when new 9 * paravirt and debugging variants are added.) 10 */ 11 #undef CONFIG_PARAVIRT 12 #undef CONFIG_PARAVIRT_SPINLOCKS 13 #undef CONFIG_KASAN 14 15 #ifdef CONFIG_X86_5LEVEL 16 /* cpu_feature_enabled() cannot be used that early */ 17 #define pgtable_l5_enabled __pgtable_l5_enabled 18 #endif 19 20 #include <linux/linkage.h> 21 #include <linux/screen_info.h> 22 #include <linux/elf.h> 23 #include <linux/io.h> 24 #include <asm/page.h> 25 #include <asm/boot.h> 26 #include <asm/bootparam.h> 27 #include <asm/bootparam_utils.h> 28 29 #define BOOT_BOOT_H 30 #include "../ctype.h" 31 32 #ifdef CONFIG_X86_64 33 #define memptr long 34 #else 35 #define memptr unsigned 36 #endif 37 38 /* misc.c */ 39 extern memptr free_mem_ptr; 40 extern memptr free_mem_end_ptr; 41 extern struct boot_params *boot_params; 42 void __putstr(const char *s); 43 void __puthex(unsigned long value); 44 #define error_putstr(__x) __putstr(__x) 45 #define error_puthex(__x) __puthex(__x) 46 47 #ifdef CONFIG_X86_VERBOSE_BOOTUP 48 49 #define debug_putstr(__x) __putstr(__x) 50 #define debug_puthex(__x) __puthex(__x) 51 #define debug_putaddr(__x) { \ 52 debug_putstr(#__x ": 0x"); \ 53 debug_puthex((unsigned long)(__x)); \ 54 debug_putstr("\n"); \ 55 } 56 57 #else 58 59 static inline void debug_putstr(const char *s) 60 { } 61 static inline void debug_puthex(const char *s) 62 { } 63 #define debug_putaddr(x) /* */ 64 65 #endif 66 67 #if CONFIG_EARLY_PRINTK || CONFIG_RANDOMIZE_BASE 68 /* cmdline.c */ 69 int cmdline_find_option(const char *option, char *buffer, int bufsize); 70 int cmdline_find_option_bool(const char *option); 71 #endif 72 73 74 #if CONFIG_RANDOMIZE_BASE 75 /* kaslr.c */ 76 void choose_random_location(unsigned long input, 77 unsigned long input_size, 78 unsigned long *output, 79 unsigned long output_size, 80 unsigned long *virt_addr); 81 /* cpuflags.c */ 82 bool has_cpuflag(int flag); 83 #else 84 static inline void choose_random_location(unsigned long input, 85 unsigned long input_size, 86 unsigned long *output, 87 unsigned long output_size, 88 unsigned long *virt_addr) 89 { 90 } 91 #endif 92 93 #ifdef CONFIG_X86_64 94 void initialize_identity_maps(void); 95 void add_identity_map(unsigned long start, unsigned long size); 96 void finalize_identity_maps(void); 97 extern unsigned char _pgtable[]; 98 #else 99 static inline void initialize_identity_maps(void) 100 { } 101 static inline void add_identity_map(unsigned long start, unsigned long size) 102 { } 103 static inline void finalize_identity_maps(void) 104 { } 105 #endif 106 107 #ifdef CONFIG_EARLY_PRINTK 108 /* early_serial_console.c */ 109 extern int early_serial_base; 110 void console_init(void); 111 #else 112 static const int early_serial_base; 113 static inline void console_init(void) 114 { } 115 #endif 116 117 void set_sev_encryption_mask(void); 118 119 #endif 120