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#undef CONFIG_KASAN_GENERIC
 16
 17/* cpu_feature_enabled() cannot be used this early */
 18#define USE_EARLY_PGTABLE_L5
 19
 20#include <linux/linkage.h>
 21#include <linux/screen_info.h>
 22#include <linux/elf.h>
 23#include <linux/io.h>
 24#include <asm/page.h>
 25#include <asm/boot.h>
 26#include <asm/bootparam.h>
 27#include <asm/desc_defs.h>
 28
 29#define BOOT_CTYPE_H
 30#include <linux/acpi.h>
 31
 32#define BOOT_BOOT_H
 33#include "../ctype.h"
 34
 35#ifdef CONFIG_X86_64
 36#define memptr long
 37#else
 38#define memptr unsigned
 39#endif
 40
 41/* boot/compressed/vmlinux start and end markers */
 42extern char _head[], _end[];
 43
 44/* misc.c */
 45extern memptr free_mem_ptr;
 46extern memptr free_mem_end_ptr;
 47extern struct boot_params *boot_params;
 48void __putstr(const char *s);
 49void __puthex(unsigned long value);
 50#define error_putstr(__x)  __putstr(__x)
 51#define error_puthex(__x)  __puthex(__x)
 52
 53#ifdef CONFIG_X86_VERBOSE_BOOTUP
 54
 55#define debug_putstr(__x)  __putstr(__x)
 56#define debug_puthex(__x)  __puthex(__x)
 57#define debug_putaddr(__x) { \
 58		debug_putstr(#__x ": 0x"); \
 59		debug_puthex((unsigned long)(__x)); \
 60		debug_putstr("\n"); \
 61	}
 62
 63#else
 64
 65static inline void debug_putstr(const char *s)
 66{ }
 67static inline void debug_puthex(unsigned long value)
 68{ }
 69#define debug_putaddr(x) /* */
 70
 71#endif
 72
 
 73/* cmdline.c */
 74int cmdline_find_option(const char *option, char *buffer, int bufsize);
 75int cmdline_find_option_bool(const char *option);
 
 
 76
 77struct mem_vector {
 78	u64 start;
 79	u64 size;
 80};
 81
 82#ifdef CONFIG_RANDOMIZE_BASE
 83/* kaslr.c */
 84void choose_random_location(unsigned long input,
 85			    unsigned long input_size,
 86			    unsigned long *output,
 87			    unsigned long output_size,
 88			    unsigned long *virt_addr);
 89#else
 90static inline void choose_random_location(unsigned long input,
 91					  unsigned long input_size,
 92					  unsigned long *output,
 93					  unsigned long output_size,
 94					  unsigned long *virt_addr)
 95{
 
 96}
 97#endif
 98
 99/* cpuflags.c */
100bool has_cpuflag(int flag);
101
102#ifdef CONFIG_X86_64
103extern int set_page_decrypted(unsigned long address);
104extern int set_page_encrypted(unsigned long address);
105extern int set_page_non_present(unsigned long address);
106extern unsigned char _pgtable[];
107#endif
108
109#ifdef CONFIG_EARLY_PRINTK
110/* early_serial_console.c */
111extern int early_serial_base;
112void console_init(void);
113#else
114static const int early_serial_base;
115static inline void console_init(void)
116{ }
117#endif
118
119void set_sev_encryption_mask(void);
120
121#ifdef CONFIG_AMD_MEM_ENCRYPT
122void sev_es_shutdown_ghcb(void);
123extern bool sev_es_check_ghcb_fault(unsigned long address);
124#else
125static inline void sev_es_shutdown_ghcb(void) { }
126static inline bool sev_es_check_ghcb_fault(unsigned long address)
127{
128	return false;
129}
130#endif
131
132/* acpi.c */
133#ifdef CONFIG_ACPI
134acpi_physical_address get_rsdp_addr(void);
135#else
136static inline acpi_physical_address get_rsdp_addr(void) { return 0; }
137#endif
138
139#if defined(CONFIG_RANDOMIZE_BASE) && defined(CONFIG_MEMORY_HOTREMOVE) && defined(CONFIG_ACPI)
140extern struct mem_vector immovable_mem[MAX_NUMNODES*2];
141int count_immovable_mem_regions(void);
142#else
143static inline int count_immovable_mem_regions(void) { return 0; }
144#endif
145
146/* ident_map_64.c */
147#ifdef CONFIG_X86_5LEVEL
148extern unsigned int __pgtable_l5_enabled, pgdir_shift, ptrs_per_p4d;
149#endif
150
151/* Used by PAGE_KERN* macros: */
152extern pteval_t __default_kernel_pte_mask;
153
154/* idt_64.c */
155extern gate_desc boot_idt[BOOT_IDT_ENTRIES];
156extern struct desc_ptr boot_idt_desc;
157
158#ifdef CONFIG_X86_64
159void cleanup_exception_handling(void);
160#else
161static inline void cleanup_exception_handling(void) { }
162#endif
163
164/* IDT Entry Points */
165void boot_page_fault(void);
166void boot_stage1_vc(void);
167void boot_stage2_vc(void);
168
169unsigned long sev_verify_cbit(unsigned long cr3);
170
171#endif /* BOOT_COMPRESSED_MISC_H */