1 /*- 2 * Copyright (c) 2004 Marcel Moolenaar 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * $FreeBSD: head/sys/sys/efi.h 292472 2015-12-19 19:01:43Z imp $ 27 */ 28 29 #ifndef _SYS_EFI_H_ 30 #define _SYS_EFI_H_ 31 32 #include <sys/uuid.h> 33 34 #define EFI_PAGE_SHIFT 12 35 #define EFI_PAGE_SIZE (1 << EFI_PAGE_SHIFT) 36 #define EFI_PAGE_MASK (EFI_PAGE_SIZE - 1) 37 38 #define EFI_TABLE_ACPI20 \ 39 {0x8868e871,0xe4f1,0x11d3,0xbc,0x22,{0x00,0x80,0xc7,0x3c,0x88,0x81}} 40 #define EFI_TABLE_SAL \ 41 {0xeb9d2d32,0x2d88,0x11d3,0x9a,0x16,{0x00,0x90,0x27,0x3f,0xc1,0x4d}} 42 43 enum efi_reset { 44 EFI_RESET_COLD, 45 EFI_RESET_WARM 46 }; 47 48 typedef uint16_t efi_char; 49 typedef unsigned long efi_status; 50 51 struct efi_cfgtbl { 52 struct uuid ct_uuid; 53 uint64_t ct_data; 54 }; 55 56 struct efi_md { 57 uint32_t md_type; 58 #define EFI_MD_TYPE_NULL 0 59 #define EFI_MD_TYPE_CODE 1 /* Loader text. */ 60 #define EFI_MD_TYPE_DATA 2 /* Loader data. */ 61 #define EFI_MD_TYPE_BS_CODE 3 /* Boot services text. */ 62 #define EFI_MD_TYPE_BS_DATA 4 /* Boot services data. */ 63 #define EFI_MD_TYPE_RT_CODE 5 /* Runtime services text. */ 64 #define EFI_MD_TYPE_RT_DATA 6 /* Runtime services data. */ 65 #define EFI_MD_TYPE_FREE 7 /* Unused/free memory. */ 66 #define EFI_MD_TYPE_BAD 8 /* Bad memory */ 67 #define EFI_MD_TYPE_RECLAIM 9 /* ACPI reclaimable memory. */ 68 #define EFI_MD_TYPE_FIRMWARE 10 /* ACPI NV memory */ 69 #define EFI_MD_TYPE_IOMEM 11 /* Memory-mapped I/O. */ 70 #define EFI_MD_TYPE_IOPORT 12 /* I/O port space. */ 71 #define EFI_MD_TYPE_PALCODE 13 /* PAL */ 72 uint32_t __pad; 73 uint64_t md_phys; 74 void *md_virt; 75 uint64_t md_pages; 76 uint64_t md_attr; 77 #define EFI_MD_ATTR_UC 0x0000000000000001UL 78 #define EFI_MD_ATTR_WC 0x0000000000000002UL 79 #define EFI_MD_ATTR_WT 0x0000000000000004UL 80 #define EFI_MD_ATTR_WB 0x0000000000000008UL 81 #define EFI_MD_ATTR_UCE 0x0000000000000010UL 82 #define EFI_MD_ATTR_WP 0x0000000000001000UL 83 #define EFI_MD_ATTR_RP 0x0000000000002000UL 84 #define EFI_MD_ATTR_XP 0x0000000000004000UL 85 #define EFI_MD_ATTR_RT 0x8000000000000000UL 86 }; 87 88 #define efi_next_descriptor(ptr, size) \ 89 ((struct efi_md *)(((uint8_t *)(ptr)) + (size))) 90 91 struct efi_tm { 92 uint16_t tm_year; /* 1998 - 20XX */ 93 uint8_t tm_mon; /* 1 - 12 */ 94 uint8_t tm_mday; /* 1 - 31 */ 95 uint8_t tm_hour; /* 0 - 23 */ 96 uint8_t tm_min; /* 0 - 59 */ 97 uint8_t tm_sec; /* 0 - 59 */ 98 uint8_t __pad1; 99 uint32_t tm_nsec; /* 0 - 999,999,999 */ 100 int16_t tm_tz; /* -1440 to 1440 or 2047 */ 101 uint8_t tm_dst; 102 uint8_t __pad2; 103 }; 104 105 struct efi_tmcap { 106 uint32_t tc_res; /* 1e-6 parts per million */ 107 uint32_t tc_prec; /* hertz */ 108 uint8_t tc_stz; /* Set clears sub-second time */ 109 }; 110 111 struct efi_tblhdr { 112 uint64_t th_sig; 113 uint32_t th_rev; 114 uint32_t th_hdrsz; 115 uint32_t th_crc32; 116 uint32_t __res; 117 }; 118 119 #define EFIABI __attribute__((ms_abi)) 120 121 struct efi_rt { 122 struct efi_tblhdr rt_hdr; 123 efi_status (*rt_gettime)(struct efi_tm *, struct efi_tmcap *) 124 EFIABI; 125 efi_status (*rt_settime)(struct efi_tm *) 126 EFIABI; 127 efi_status (*rt_getwaketime)(uint8_t *, uint8_t *, 128 struct efi_tm *) EFIABI; 129 efi_status (*rt_setwaketime)(uint8_t, struct efi_tm *) 130 EFIABI; 131 efi_status (*rt_setvirtual)(u_long, u_long, uint32_t, 132 struct efi_md *) EFIABI; 133 efi_status (*rt_cvtptr)(u_long, void **) 134 EFIABI; 135 efi_status (*rt_getvar)(efi_char *, struct uuid *, uint32_t *, 136 u_long *, void *) EFIABI; 137 efi_status (*rt_scanvar)(u_long *, efi_char *, struct uuid *) 138 EFIABI; 139 efi_status (*rt_setvar)(efi_char *, struct uuid *, uint32_t, 140 u_long, void *) EFIABI; 141 efi_status (*rt_gethicnt)(uint32_t *) 142 EFIABI; 143 efi_status (*rt_reset)(enum efi_reset, efi_status, u_long, 144 efi_char *) EFIABI; 145 }; 146 147 struct efi_systbl { 148 struct efi_tblhdr st_hdr; 149 #define EFI_SYSTBL_SIG 0x5453595320494249UL 150 efi_char *st_fwvendor; 151 uint32_t st_fwrev; 152 uint32_t __pad; 153 void *st_cin; 154 void *st_cinif; 155 void *st_cout; 156 void *st_coutif; 157 void *st_cerr; 158 void *st_cerrif; 159 uint64_t st_rt; 160 void *st_bs; 161 u_long st_entries; 162 uint64_t st_cfgtbl; 163 }; 164 165 #ifdef _KERNEL 166 extern vm_paddr_t efi_systbl_phys; 167 #endif /* _KERNEL */ 168 169 #endif /* _SYS_EFI_H_ */ 170