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1#ifndef BOOT_COMPRESSED_MISC_H
2#define BOOT_COMPRESSED_MISC_H
3
4/*
5 * we have to be careful, because no indirections are allowed here, and
6 * paravirt_ops is a kind of one. As it will only run in baremetal anyway,
7 * we just keep it from happening
8 */
9#undef CONFIG_PARAVIRT
10#ifdef CONFIG_X86_32
11#define _ASM_X86_DESC_H 1
12#endif
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 */
33extern memptr free_mem_ptr;
34extern memptr free_mem_end_ptr;
35extern struct boot_params *real_mode; /* Pointer to real-mode data */
36void __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
45static inline void debug_putstr(const char *s)
46{ }
47
48#endif
49
50#if CONFIG_EARLY_PRINTK || CONFIG_RANDOMIZE_BASE
51/* cmdline.c */
52int cmdline_find_option(const char *option, char *buffer, int bufsize);
53int cmdline_find_option_bool(const char *option);
54#endif
55
56
57#if CONFIG_RANDOMIZE_BASE
58/* aslr.c */
59unsigned char *choose_kernel_location(unsigned char *input,
60 unsigned long input_size,
61 unsigned char *output,
62 unsigned long output_size);
63/* cpuflags.c */
64bool has_cpuflag(int flag);
65#else
66static inline
67unsigned char *choose_kernel_location(unsigned char *input,
68 unsigned long input_size,
69 unsigned char *output,
70 unsigned long output_size)
71{
72 return output;
73}
74#endif
75
76#ifdef CONFIG_EARLY_PRINTK
77/* early_serial_console.c */
78extern int early_serial_base;
79void console_init(void);
80#else
81static const int early_serial_base;
82static inline void console_init(void)
83{ }
84#endif
85
86#endif
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_XXL
13#undef CONFIG_PARAVIRT_SPINLOCKS
14#undef CONFIG_KASAN
15
16/* cpu_feature_enabled() cannot be used this early */
17#define USE_EARLY_PGTABLE_L5
18
19#include <linux/linkage.h>
20#include <linux/screen_info.h>
21#include <linux/elf.h>
22#include <linux/io.h>
23#include <asm/page.h>
24#include <asm/boot.h>
25#include <asm/bootparam.h>
26
27#define BOOT_CTYPE_H
28#include <linux/acpi.h>
29
30#define BOOT_BOOT_H
31#include "../ctype.h"
32
33#ifdef CONFIG_X86_64
34#define memptr long
35#else
36#define memptr unsigned
37#endif
38
39/* misc.c */
40extern memptr free_mem_ptr;
41extern memptr free_mem_end_ptr;
42extern struct boot_params *boot_params;
43void __putstr(const char *s);
44void __puthex(unsigned long value);
45#define error_putstr(__x) __putstr(__x)
46#define error_puthex(__x) __puthex(__x)
47
48#ifdef CONFIG_X86_VERBOSE_BOOTUP
49
50#define debug_putstr(__x) __putstr(__x)
51#define debug_puthex(__x) __puthex(__x)
52#define debug_putaddr(__x) { \
53 debug_putstr(#__x ": 0x"); \
54 debug_puthex((unsigned long)(__x)); \
55 debug_putstr("\n"); \
56 }
57
58#else
59
60static inline void debug_putstr(const char *s)
61{ }
62static inline void debug_puthex(const char *s)
63{ }
64#define debug_putaddr(x) /* */
65
66#endif
67
68/* cmdline.c */
69int cmdline_find_option(const char *option, char *buffer, int bufsize);
70int cmdline_find_option_bool(const char *option);
71
72struct mem_vector {
73 unsigned long long start;
74 unsigned long long size;
75};
76
77#if CONFIG_RANDOMIZE_BASE
78/* kaslr.c */
79void choose_random_location(unsigned long input,
80 unsigned long input_size,
81 unsigned long *output,
82 unsigned long output_size,
83 unsigned long *virt_addr);
84/* cpuflags.c */
85bool has_cpuflag(int flag);
86#else
87static inline void choose_random_location(unsigned long input,
88 unsigned long input_size,
89 unsigned long *output,
90 unsigned long output_size,
91 unsigned long *virt_addr)
92{
93}
94#endif
95
96#ifdef CONFIG_X86_64
97void initialize_identity_maps(void);
98void add_identity_map(unsigned long start, unsigned long size);
99void finalize_identity_maps(void);
100extern unsigned char _pgtable[];
101#else
102static inline void initialize_identity_maps(void)
103{ }
104static inline void add_identity_map(unsigned long start, unsigned long size)
105{ }
106static inline void finalize_identity_maps(void)
107{ }
108#endif
109
110#ifdef CONFIG_EARLY_PRINTK
111/* early_serial_console.c */
112extern int early_serial_base;
113void console_init(void);
114#else
115static const int early_serial_base;
116static inline void console_init(void)
117{ }
118#endif
119
120void set_sev_encryption_mask(void);
121
122/* acpi.c */
123#ifdef CONFIG_ACPI
124acpi_physical_address get_rsdp_addr(void);
125#else
126static inline acpi_physical_address get_rsdp_addr(void) { return 0; }
127#endif
128
129#if defined(CONFIG_RANDOMIZE_BASE) && defined(CONFIG_MEMORY_HOTREMOVE) && defined(CONFIG_ACPI)
130extern struct mem_vector immovable_mem[MAX_NUMNODES*2];
131int count_immovable_mem_regions(void);
132#else
133static inline int count_immovable_mem_regions(void) { return 0; }
134#endif
135
136#endif /* BOOT_COMPRESSED_MISC_H */