| 1 | /* $NetBSD: efi.h,v 1.1 2016/01/28 01:09:56 christos Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 2004 Marcel Moolenaar |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * Redistribution and use in source and binary forms, with or without |
| 8 | * modification, are permitted provided that the following conditions |
| 9 | * are met: |
| 10 | * |
| 11 | * 1. Redistributions of source code must retain the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer. |
| 13 | * 2. Redistributions in binary form must reproduce the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer in the |
| 15 | * documentation and/or other materials provided with the distribution. |
| 16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | * |
| 28 | * $FreeBSD$ |
| 29 | */ |
| 30 | |
| 31 | /* This file is mainly ia64/include/efi.h with little modifications. */ |
| 32 | |
| 33 | #ifndef _X86_EFI_H_ |
| 34 | #define _X86_EFI_H_ |
| 35 | |
| 36 | #include <sys/uuid.h> |
| 37 | |
| 38 | #define EFI_PAGE_SHIFT 12 |
| 39 | #define EFI_PAGE_SIZE (1 << EFI_PAGE_SHIFT) |
| 40 | #define EFI_PAGE_MASK (EFI_PAGE_SIZE - 1) |
| 41 | |
| 42 | extern const struct uuid EFI_UUID_ACPI20; |
| 43 | extern const struct uuid EFI_UUID_ACPI10; |
| 44 | |
| 45 | #define EFI_TABLE_SAL \ |
| 46 | {0xeb9d2d32,0x2d88,0x11d3,0x9a,0x16,{0x00,0x90,0x27,0x3f,0xc1,0x4d}} |
| 47 | |
| 48 | enum efi_reset { |
| 49 | EFI_RESET_COLD, |
| 50 | EFI_RESET_WARM |
| 51 | }; |
| 52 | |
| 53 | typedef uint16_t efi_char; |
| 54 | typedef unsigned long efi_status; |
| 55 | |
| 56 | |
| 57 | struct efi_cfgtbl { |
| 58 | struct uuid ct_uuid; |
| 59 | uint64_t ct_data; |
| 60 | }; |
| 61 | struct efi_md { |
| 62 | uint32_t md_type; |
| 63 | #define EFI_MD_TYPE_NULL 0 |
| 64 | #define EFI_MD_TYPE_CODE 1 /* Loader text. */ |
| 65 | #define EFI_MD_TYPE_DATA 2 /* Loader data. */ |
| 66 | #define EFI_MD_TYPE_BS_CODE 3 /* Boot services text. */ |
| 67 | #define EFI_MD_TYPE_BS_DATA 4 /* Boot services data. */ |
| 68 | #define EFI_MD_TYPE_RT_CODE 5 /* Runtime services text. */ |
| 69 | #define EFI_MD_TYPE_RT_DATA 6 /* Runtime services data. */ |
| 70 | #define EFI_MD_TYPE_FREE 7 /* Unused/free memory. */ |
| 71 | #define EFI_MD_TYPE_BAD 8 /* Bad memory */ |
| 72 | #define EFI_MD_TYPE_RECLAIM 9 /* ACPI reclaimable memory. */ |
| 73 | #define EFI_MD_TYPE_FIRMWARE 10 /* ACPI NV memory */ |
| 74 | #define EFI_MD_TYPE_IOMEM 11 /* Memory-mapped I/O. */ |
| 75 | #define EFI_MD_TYPE_IOPORT 12 /* I/O port space. */ |
| 76 | #define EFI_MD_TYPE_PALCODE 13 /* PAL */ |
| 77 | uint32_t __pad; |
| 78 | uint64_t md_phys; |
| 79 | void *md_virt; |
| 80 | uint64_t md_pages; |
| 81 | uint64_t md_attr; |
| 82 | #define EFI_MD_ATTR_UC 0x0000000000000001UL |
| 83 | #define EFI_MD_ATTR_WC 0x0000000000000002UL |
| 84 | #define EFI_MD_ATTR_WT 0x0000000000000004UL |
| 85 | #define EFI_MD_ATTR_WB 0x0000000000000008UL |
| 86 | #define EFI_MD_ATTR_UCE 0x0000000000000010UL |
| 87 | #define EFI_MD_ATTR_WP 0x0000000000001000UL |
| 88 | #define EFI_MD_ATTR_RP 0x0000000000002000UL |
| 89 | #define EFI_MD_ATTR_XP 0x0000000000004000UL |
| 90 | #define EFI_MD_ATTR_RT 0x8000000000000000UL |
| 91 | }; |
| 92 | |
| 93 | struct efi_tm { |
| 94 | uint16_t tm_year; /* 1998 - 20XX */ |
| 95 | uint8_t tm_mon; /* 1 - 12 */ |
| 96 | uint8_t tm_mday; /* 1 - 31 */ |
| 97 | uint8_t tm_hour; /* 0 - 23 */ |
| 98 | uint8_t tm_min; /* 0 - 59 */ |
| 99 | uint8_t tm_sec; /* 0 - 59 */ |
| 100 | uint8_t __pad1; |
| 101 | uint32_t tm_nsec; /* 0 - 999,999,999 */ |
| 102 | int16_t tm_tz; /* -1440 to 1440 or 2047 */ |
| 103 | uint8_t tm_dst; |
| 104 | uint8_t __pad2; |
| 105 | }; |
| 106 | |
| 107 | struct efi_tmcap { |
| 108 | uint32_t tc_res; /* 1e-6 parts per million */ |
| 109 | uint32_t tc_prec; /* hertz */ |
| 110 | uint8_t tc_stz; /* Set clears sub-second time */ |
| 111 | }; |
| 112 | |
| 113 | struct efi_tblhdr { |
| 114 | uint64_t th_sig; |
| 115 | uint32_t th_rev; |
| 116 | uint32_t th_hdrsz; |
| 117 | uint32_t th_crc32; |
| 118 | uint32_t __res; |
| 119 | }; |
| 120 | |
| 121 | struct efi_rt { |
| 122 | struct efi_tblhdr rt_hdr; |
| 123 | efi_status (*rt_gettime)(struct efi_tm *, struct efi_tmcap *); |
| 124 | efi_status (*rt_settime)(struct efi_tm *); |
| 125 | efi_status (*rt_getwaketime)(uint8_t *, uint8_t *, |
| 126 | struct efi_tm *); |
| 127 | efi_status (*rt_setwaketime)(uint8_t, struct efi_tm *); |
| 128 | efi_status (*rt_setvirtual)(u_long, u_long, uint32_t, |
| 129 | struct efi_md *); |
| 130 | efi_status (*rt_cvtptr)(u_long, void **); |
| 131 | efi_status (*rt_getvar)(efi_char *, struct uuid *, uint32_t *, |
| 132 | u_long *, void *); |
| 133 | efi_status (*rt_scanvar)(u_long *, efi_char *, struct uuid *); |
| 134 | efi_status (*rt_setvar)(efi_char *, struct uuid *, uint32_t, |
| 135 | u_long, void *); |
| 136 | efi_status (*rt_gethicnt)(uint32_t *); |
| 137 | efi_status (*rt_reset)(enum efi_reset, efi_status, u_long, |
| 138 | efi_char *); |
| 139 | }; |
| 140 | |
| 141 | struct efi_systbl { |
| 142 | struct efi_tblhdr st_hdr; |
| 143 | #define EFI_SYSTBL_SIG 0x5453595320494249UL |
| 144 | efi_char *st_fwvendor; |
| 145 | uint32_t st_fwrev; |
| 146 | uint32_t __pad; |
| 147 | void *st_cin; |
| 148 | void *st_cinif; |
| 149 | void *st_cout; |
| 150 | void *st_coutif; |
| 151 | void *st_cerr; |
| 152 | void *st_cerrif; |
| 153 | uint64_t st_rt; |
| 154 | void *st_bs; |
| 155 | u_long st_entries; |
| 156 | uint64_t st_cfgtbl; |
| 157 | }; |
| 158 | |
| 159 | bool efi_probe(void); |
| 160 | paddr_t efi_getsystblpa(void); |
| 161 | struct efi_systbl *efi_getsystbl(void); |
| 162 | paddr_t efi_getcfgtblpa(const struct uuid*); |
| 163 | void *efi_getcfgtbl(const struct uuid*); |
| 164 | /* |
| 165 | void efi_boot_finish(void); |
| 166 | int efi_boot_minimal(uint64_t); |
| 167 | void *efi_get_table(struct uuid *); |
| 168 | void efi_get_time(struct efi_tm *); |
| 169 | struct efi_md *efi_md_first(void); |
| 170 | struct efi_md *efi_md_next(struct efi_md *); |
| 171 | void efi_reset_system(void); |
| 172 | efi_status efi_set_time(struct efi_tm *); |
| 173 | */ |
| 174 | |
| 175 | #endif /* _X86_EFI_H_ */ |
| 176 | |