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Linux kernel mirror (for testing)
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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 */
37extern memptr free_mem_ptr;
38extern memptr free_mem_end_ptr;
39extern struct boot_params *boot_params;
40void __putstr(const char *s);
41void __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
57static inline void debug_putstr(const char *s)
58{ }
59static 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 */
67int cmdline_find_option(const char *option, char *buffer, int bufsize);
68int cmdline_find_option_bool(const char *option);
69#endif
70
71
72#if CONFIG_RANDOMIZE_BASE
73/* kaslr.c */
74void 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 */
80bool has_cpuflag(int flag);
81#else
82static 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
92void initialize_identity_maps(void);
93void add_identity_map(unsigned long start, unsigned long size);
94void finalize_identity_maps(void);
95extern unsigned char _pgtable[];
96#else
97static inline void initialize_identity_maps(void)
98{ }
99static inline void add_identity_map(unsigned long start, unsigned long size)
100{ }
101static inline void finalize_identity_maps(void)
102{ }
103#endif
104
105#ifdef CONFIG_EARLY_PRINTK
106/* early_serial_console.c */
107extern int early_serial_base;
108void console_init(void);
109#else
110static const int early_serial_base;
111static inline void console_init(void)
112{ }
113#endif
114
115void set_sev_encryption_mask(void);
116
117#endif