xref: /illumos-gate/usr/src/uts/intel/sys/bootinfo.h (revision d7dc20313645bcb9c9960a816baebe924d60bcf3)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #ifndef	_SYS_BOOTINFO_H
28 #define	_SYS_BOOTINFO_H
29 
30 #ifdef	__cplusplus
31 extern "C" {
32 #endif
33 
34 /*
35  * This is used by bootfs and dboot.  It should be at least as large as the
36  * number of modules that bootloaders (e.g., grub) can support.  This figure
37  * has been chosen to match grub's value exactly.
38  */
39 #define	MAX_BOOT_MODULES	99
40 
41 /*
42  * The 32-bit kernel loader code needs to build several structures that the
43  * kernel is expecting. They will contain native sized pointers for the
44  * target kernel.
45  */
46 
47 #if defined(_BOOT_TARGET_amd64)
48 
49 typedef uint64_t native_ptr_t;
50 
51 #elif defined(_BOOT_TARGET_i386)
52 
53 typedef uint32_t native_ptr_t;
54 
55 #elif defined(_KERNEL)
56 
57 typedef void *native_ptr_t;
58 
59 #endif
60 
61 typedef enum boot_module_type {
62 	BMT_ROOTFS,
63 	BMT_FILE,
64 	BMT_HASH,
65 	BMT_ENV
66 } boot_module_type_t;
67 
68 struct boot_memlist {
69 	uint64_t	addr;
70 	uint64_t	size;
71 	native_ptr_t	next;
72 	native_ptr_t	prev;
73 };
74 
75 /*
76  * The kernel needs to know how to find its modules.
77  */
78 struct boot_modules {
79 	native_ptr_t		bm_addr;
80 	native_ptr_t		bm_name;
81 	native_ptr_t		bm_hash;
82 	uint32_t		bm_size;
83 	boot_module_type_t	bm_type;
84 };
85 
86 /* To help to identify UEFI system. */
87 typedef enum uefi_arch_type {
88 	XBI_UEFI_ARCH_NONE,
89 	XBI_UEFI_ARCH_32,
90 	XBI_UEFI_ARCH_64
91 } uefi_arch_type_t;
92 /*
93  *
94  */
95 #pragma pack(1)
96 struct xboot_info {
97 	uint64_t	bi_next_paddr;	/* next physical address not used */
98 	native_ptr_t	bi_next_vaddr;	/* next virtual address not used */
99 	native_ptr_t	bi_cmdline;
100 	native_ptr_t	bi_phys_install;
101 	native_ptr_t	bi_rsvdmem;
102 	native_ptr_t	bi_pcimem;
103 	native_ptr_t	bi_modules;
104 	uint32_t	bi_module_cnt;
105 	uint32_t	bi_use_largepage;	/* MMU uses large pages */
106 	uint32_t	bi_use_pae;	/* MMU uses PAE mode (8 byte PTES) */
107 	uint32_t	bi_use_nx;	/* MMU uses NX bit in PTEs */
108 	uint32_t	bi_use_pge;	/* MMU uses Page Global Enable */
109 	native_ptr_t	bi_pt_window;
110 	native_ptr_t	bi_pte_to_pt_window;
111 	native_ptr_t	bi_kseg_size;	/* size used for kernel nucleus pages */
112 	uint64_t	bi_top_page_table;
113 #if defined(__xpv)
114 	native_ptr_t	bi_xen_start_info;
115 	native_ptr_t	bi_shared_info;		/* VA for shared_info */
116 #else
117 	native_ptr_t	bi_mb_info;		/* multiboot 1 or 2 info */
118 	int		bi_mb_version;		/* multiboot version */
119 	native_ptr_t	bi_acpi_rsdp;
120 	native_ptr_t	bi_smbios;
121 	native_ptr_t	bi_uefi_systab;
122 	uefi_arch_type_t bi_uefi_arch;
123 #endif
124 	native_ptr_t	bi_framebuffer;
125 };
126 #pragma pack()
127 
128 #ifdef	__cplusplus
129 }
130 #endif
131 
132 #endif	/* _SYS_BOOTINFO_H */
133