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#include <asm/bootparam_utils.h>
27
28#define BOOT_CTYPE_H
29#include <linux/acpi.h>
30
31#define BOOT_BOOT_H
32#include "../ctype.h"
33
34#ifdef CONFIG_X86_64
35#define memptr long
36#else
37#define memptr unsigned
38#endif
39
40/* misc.c */
41extern memptr free_mem_ptr;
42extern memptr free_mem_end_ptr;
43extern struct boot_params *boot_params;
44void __putstr(const char *s);
45void __puthex(unsigned long value);
46#define error_putstr(__x) __putstr(__x)
47#define error_puthex(__x) __puthex(__x)
48
49#ifdef CONFIG_X86_VERBOSE_BOOTUP
50
51#define debug_putstr(__x) __putstr(__x)
52#define debug_puthex(__x) __puthex(__x)
53#define debug_putaddr(__x) { \
54 debug_putstr(#__x ": 0x"); \
55 debug_puthex((unsigned long)(__x)); \
56 debug_putstr("\n"); \
57 }
58
59#else
60
61static inline void debug_putstr(const char *s)
62{ }
63static inline void debug_puthex(const char *s)
64{ }
65#define debug_putaddr(x) /* */
66
67#endif
68
69/* cmdline.c */
70int cmdline_find_option(const char *option, char *buffer, int bufsize);
71int cmdline_find_option_bool(const char *option);
72
73struct mem_vector {
74 unsigned long long start;
75 unsigned long long size;
76};
77
78#if CONFIG_RANDOMIZE_BASE
79/* kaslr.c */
80void choose_random_location(unsigned long input,
81 unsigned long input_size,
82 unsigned long *output,
83 unsigned long output_size,
84 unsigned long *virt_addr);
85/* cpuflags.c */
86bool has_cpuflag(int flag);
87#else
88static inline void choose_random_location(unsigned long input,
89 unsigned long input_size,
90 unsigned long *output,
91 unsigned long output_size,
92 unsigned long *virt_addr)
93{
94}
95#endif
96
97#ifdef CONFIG_X86_64
98void initialize_identity_maps(void);
99void add_identity_map(unsigned long start, unsigned long size);
100void finalize_identity_maps(void);
101extern unsigned char _pgtable[];
102#else
103static inline void initialize_identity_maps(void)
104{ }
105static inline void add_identity_map(unsigned long start, unsigned long size)
106{ }
107static inline void finalize_identity_maps(void)
108{ }
109#endif
110
111#ifdef CONFIG_EARLY_PRINTK
112/* early_serial_console.c */
113extern int early_serial_base;
114void console_init(void);
115#else
116static const int early_serial_base;
117static inline void console_init(void)
118{ }
119#endif
120
121void set_sev_encryption_mask(void);
122
123#endif
124
125/* acpi.c */
126#ifdef CONFIG_ACPI
127acpi_physical_address get_rsdp_addr(void);
128#else
129static inline acpi_physical_address get_rsdp_addr(void) { return 0; }
130#endif
131
132#if defined(CONFIG_RANDOMIZE_BASE) && defined(CONFIG_MEMORY_HOTREMOVE) && defined(CONFIG_ACPI)
133extern struct mem_vector immovable_mem[MAX_NUMNODES*2];
134int count_immovable_mem_regions(void);
135#else
136static inline int count_immovable_mem_regions(void) { return 0; }
137#endif
138