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
debug_putstr(const char * s)57 static inline void debug_putstr(const char *s)
58 { }
debug_puthex(const char * s)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
choose_random_location(unsigned long input,unsigned long input_size,unsigned long * output,unsigned long output_size,unsigned long * virt_addr)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
initialize_identity_maps(void)97 static inline void initialize_identity_maps(void)
98 { }
add_identity_map(unsigned long start,unsigned long size)99 static inline void add_identity_map(unsigned long start, unsigned long size)
100 { }
finalize_identity_maps(void)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;
console_init(void)111 static inline void console_init(void)
112 { }
113 #endif
114
115 void set_sev_encryption_mask(void);
116
117 #endif
118
