| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame^] | 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 | /* cpu_feature_enabled() cannot be used this early */ |
| 16 | #define USE_EARLY_PGTABLE_L5 |
| 17 | |
| 18 | #include <linux/linkage.h> |
| 19 | #include <linux/screen_info.h> |
| 20 | #include <linux/elf.h> |
| 21 | #include <linux/io.h> |
| 22 | #include <asm/page.h> |
| 23 | #include <asm/boot.h> |
| 24 | #include <asm/bootparam.h> |
| 25 | #include <asm/bootparam_utils.h> |
| 26 | |
| 27 | #define BOOT_BOOT_H |
| 28 | #include "../ctype.h" |
| 29 | |
| 30 | #ifdef CONFIG_X86_64 |
| 31 | #define memptr long |
| 32 | #else |
| 33 | #define memptr unsigned |
| 34 | #endif |
| 35 | |
| 36 | /* misc.c */ |
| 37 | extern memptr free_mem_ptr; |
| 38 | extern memptr free_mem_end_ptr; |
| 39 | extern struct boot_params *boot_params; |
| 40 | void __putstr(const char *s); |
| 41 | void __puthex(unsigned long value); |
| 42 | #define error_putstr(__x) __putstr(__x) |
| 43 | #define error_puthex(__x) __puthex(__x) |
| 44 | |
| 45 | #ifdef CONFIG_X86_VERBOSE_BOOTUP |
| 46 | |
| 47 | #define debug_putstr(__x) __putstr(__x) |
| 48 | #define debug_puthex(__x) __puthex(__x) |
| 49 | #define debug_putaddr(__x) { \ |
| 50 | debug_putstr(#__x ": 0x"); \ |
| 51 | debug_puthex((unsigned long)(__x)); \ |
| 52 | debug_putstr("\n"); \ |
| 53 | } |
| 54 | |
| 55 | #else |
| 56 | |
| 57 | static inline void debug_putstr(const char *s) |
| 58 | { } |
| 59 | static inline void debug_puthex(const char *s) |
| 60 | { } |
| 61 | #define debug_putaddr(x) /* */ |
| 62 | |
| 63 | #endif |
| 64 | |
| 65 | #if CONFIG_EARLY_PRINTK || CONFIG_RANDOMIZE_BASE |
| 66 | /* cmdline.c */ |
| 67 | int cmdline_find_option(const char *option, char *buffer, int bufsize); |
| 68 | int cmdline_find_option_bool(const char *option); |
| 69 | #endif |
| 70 | |
| 71 | |
| 72 | #if CONFIG_RANDOMIZE_BASE |
| 73 | /* kaslr.c */ |
| 74 | void choose_random_location(unsigned long input, |
| 75 | unsigned long input_size, |
| 76 | unsigned long *output, |
| 77 | unsigned long output_size, |
| 78 | unsigned long *virt_addr); |
| 79 | /* cpuflags.c */ |
| 80 | bool has_cpuflag(int flag); |
| 81 | #else |
| 82 | static inline void choose_random_location(unsigned long input, |
| 83 | unsigned long input_size, |
| 84 | unsigned long *output, |
| 85 | unsigned long output_size, |
| 86 | unsigned long *virt_addr) |
| 87 | { |
| 88 | } |
| 89 | #endif |
| 90 | |
| 91 | #ifdef CONFIG_X86_64 |
| 92 | void initialize_identity_maps(void); |
| 93 | void add_identity_map(unsigned long start, unsigned long size); |
| 94 | void finalize_identity_maps(void); |
| 95 | extern unsigned char _pgtable[]; |
| 96 | #else |
| 97 | static inline void initialize_identity_maps(void) |
| 98 | { } |
| 99 | static inline void add_identity_map(unsigned long start, unsigned long size) |
| 100 | { } |
| 101 | static inline void finalize_identity_maps(void) |
| 102 | { } |
| 103 | #endif |
| 104 | |
| 105 | #ifdef CONFIG_EARLY_PRINTK |
| 106 | /* early_serial_console.c */ |
| 107 | extern int early_serial_base; |
| 108 | void console_init(void); |
| 109 | #else |
| 110 | static const int early_serial_base; |
| 111 | static inline void console_init(void) |
| 112 | { } |
| 113 | #endif |
| 114 | |
| 115 | void set_sev_encryption_mask(void); |
| 116 | |
| 117 | #endif |