efi.h revision 1.5
1 /* $NetBSD: efi.h,v 1.5 2022/08/20 10:54:25 riastradh 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 #ifndef _MACHINE_EFI_H_ 32 #define _MACHINE_EFI_H_ 33 34 #include <sys/uuid.h> 35 36 #define EFI_PAGE_SHIFT 12 37 #define EFI_PAGE_SIZE (1 << EFI_PAGE_SHIFT) 38 #define EFI_PAGE_MASK (EFI_PAGE_SIZE - 1) 39 40 #define EFI_TABLE_ACPI20 \ 41 {0x8868e871,0xe4f1,0x11d3,0xbc,0x22,{0x00,0x80,0xc7,0x3c,0x88,0x81}} 42 #define EFI_TABLE_SAL \ 43 {0xeb9d2d32,0x2d88,0x11d3,0x9a,0x16,{0x00,0x90,0x27,0x3f,0xc1,0x4d}} 44 45 enum efi_reset { 46 EFI_RESET_COLD, 47 EFI_RESET_WARM 48 }; 49 50 typedef uint16_t efi_char; 51 typedef unsigned long efi_status; 52 53 struct efi_cfgtbl { 54 struct uuid ct_uuid; 55 void *ct_data; 56 }; 57 58 struct efi_md { 59 uint32_t md_type; 60 #define EFI_MD_TYPE_NULL 0 61 #define EFI_MD_TYPE_CODE 1 /* Loader text. */ 62 #define EFI_MD_TYPE_DATA 2 /* Loader data. */ 63 #define EFI_MD_TYPE_BS_CODE 3 /* Boot services text. */ 64 #define EFI_MD_TYPE_BS_DATA 4 /* Boot services data. */ 65 #define EFI_MD_TYPE_RT_CODE 5 /* Runtime services text. */ 66 #define EFI_MD_TYPE_RT_DATA 6 /* Runtime services data. */ 67 #define EFI_MD_TYPE_FREE 7 /* Unused/free memory. */ 68 #define EFI_MD_TYPE_BAD 8 /* Bad memory */ 69 #define EFI_MD_TYPE_RECLAIM 9 /* ACPI reclaimable memory. */ 70 #define EFI_MD_TYPE_FIRMWARE 10 /* ACPI NV memory */ 71 #define EFI_MD_TYPE_IOMEM 11 /* Memory-mapped I/O. */ 72 #define EFI_MD_TYPE_IOPORT 12 /* I/O port space. */ 73 #define EFI_MD_TYPE_PALCODE 13 /* PAL */ 74 uint32_t __pad; 75 uint64_t md_phys; 76 uint64_t md_virt; 77 uint64_t md_pages; 78 uint64_t md_attr; 79 #define EFI_MD_ATTR_UC 0x0000000000000001UL 80 #define EFI_MD_ATTR_WC 0x0000000000000002UL 81 #define EFI_MD_ATTR_WT 0x0000000000000004UL 82 #define EFI_MD_ATTR_WB 0x0000000000000008UL 83 #define EFI_MD_ATTR_UCE 0x0000000000000010UL 84 #define EFI_MD_ATTR_WP 0x0000000000001000UL 85 #define EFI_MD_ATTR_RP 0x0000000000002000UL 86 #define EFI_MD_ATTR_XP 0x0000000000004000UL 87 #define EFI_MD_ATTR_NV 0x0000000000008000UL 88 #define EFI_MD_ATTR_MORE_RELIABLE 0x0000000000010000UL 89 #define EFI_MD_ATTR_RO 0x0000000000020000UL 90 #define EFI_MD_ATTR_SP 0x0000000000040000UL 91 #define EFI_MD_ATTR_CPU_CRYPTO 0x0000000000080000UL 92 #define EFI_MD_ATTR_RT 0x8000000000000000UL 93 }; 94 95 struct efi_tm { 96 uint16_t tm_year; /* 1998 - 20XX */ 97 uint8_t tm_mon; /* 1 - 12 */ 98 uint8_t tm_mday; /* 1 - 31 */ 99 uint8_t tm_hour; /* 0 - 23 */ 100 uint8_t tm_min; /* 0 - 59 */ 101 uint8_t tm_sec; /* 0 - 59 */ 102 uint8_t __pad1; 103 uint32_t tm_nsec; /* 0 - 999,999,999 */ 104 int16_t tm_tz; /* -1440 to 1440 or 2047 */ 105 uint8_t tm_dst; 106 uint8_t __pad2; 107 }; 108 109 struct efi_tmcap { 110 uint32_t tc_res; /* 1e-6 parts per million */ 111 uint32_t tc_prec; /* hertz */ 112 uint8_t tc_stz; /* Set clears sub-second time */ 113 }; 114 115 struct efi_tblhdr { 116 uint64_t th_sig; 117 uint32_t th_rev; 118 uint32_t th_hdrsz; 119 uint32_t th_crc32; 120 uint32_t __res; 121 }; 122 123 struct efi_rt { 124 struct efi_tblhdr rt_hdr; 125 efi_status (*rt_gettime)(struct efi_tm *, struct efi_tmcap *); 126 efi_status (*rt_settime)(struct efi_tm *); 127 efi_status (*rt_getwaketime)(uint8_t *, uint8_t *, 128 struct efi_tm *); 129 efi_status (*rt_setwaketime)(uint8_t, struct efi_tm *); 130 efi_status (*rt_setvirtual)(u_long, u_long, uint32_t, 131 struct efi_md *); 132 efi_status (*rt_cvtptr)(u_long, void **); 133 efi_status (*rt_getvar)(efi_char *, struct uuid *, uint32_t *, 134 u_long *, void *); 135 efi_status (*rt_scanvar)(u_long *, efi_char *, struct uuid *); 136 efi_status (*rt_setvar)(efi_char *, struct uuid *, uint32_t, 137 u_long, void *); 138 efi_status (*rt_gethicnt)(uint32_t *); 139 efi_status (*rt_reset)(enum efi_reset, efi_status, u_long, 140 efi_char *); 141 }; 142 143 struct efi_systbl { 144 struct efi_tblhdr st_hdr; 145 #define EFI_SYSTBL_SIG 0x5453595320494249UL 146 efi_char *st_fwvendor; 147 uint32_t st_fwrev; 148 uint32_t __pad; 149 void *st_cin; 150 void *st_cinif; 151 void *st_cout; 152 void *st_coutif; 153 void *st_cerr; 154 void *st_cerrif; 155 uint64_t st_rt; 156 void *st_bs; 157 u_long st_entries; 158 uint64_t st_cfgtbl; 159 }; 160 161 void efi_boot_finish(void); 162 int efi_boot_minimal(uint64_t); 163 void *efi_get_table(struct uuid *); 164 void efi_get_time(struct efi_tm *); 165 struct efi_md *efi_md_first(void); 166 struct efi_md *efi_md_next(struct efi_md *); 167 void efi_reset_system(void); 168 efi_status efi_set_time(struct efi_tm *); 169 170 #endif /* _MACHINE_EFI_H_ */ 171
Indexes created Wed Oct 15 16:09:53 GMT 2025