The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/sys/efi.h

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    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: releng/11.1/sys/sys/efi.h 317004 2017-04-16 07:21:20Z mmel $
   27  */
   28 
   29 #ifndef _SYS_EFI_H_
   30 #define _SYS_EFI_H_
   31 
   32 #include <sys/uuid.h>
   33 #include <machine/efi.h>
   34 
   35 #define EFI_PAGE_SHIFT          12
   36 #define EFI_PAGE_SIZE           (1 << EFI_PAGE_SHIFT)
   37 #define EFI_PAGE_MASK           (EFI_PAGE_SIZE - 1)
   38 
   39 #define EFI_TABLE_ACPI20                        \
   40         {0x8868e871,0xe4f1,0x11d3,0xbc,0x22,{0x00,0x80,0xc7,0x3c,0x88,0x81}}
   41 #define EFI_TABLE_SAL                           \
   42         {0xeb9d2d32,0x2d88,0x11d3,0x9a,0x16,{0x00,0x90,0x27,0x3f,0xc1,0x4d}}
   43 
   44 enum efi_reset {
   45         EFI_RESET_COLD,
   46         EFI_RESET_WARM
   47 };
   48 
   49 typedef uint16_t        efi_char;
   50 typedef unsigned long efi_status;
   51 
   52 struct efi_cfgtbl {
   53         struct uuid     ct_uuid;
   54         uint64_t        ct_data;
   55 };
   56 
   57 struct efi_md {
   58         uint32_t        md_type;
   59 #define EFI_MD_TYPE_NULL        0
   60 #define EFI_MD_TYPE_CODE        1       /* Loader text. */
   61 #define EFI_MD_TYPE_DATA        2       /* Loader data. */
   62 #define EFI_MD_TYPE_BS_CODE     3       /* Boot services text. */
   63 #define EFI_MD_TYPE_BS_DATA     4       /* Boot services data. */
   64 #define EFI_MD_TYPE_RT_CODE     5       /* Runtime services text. */
   65 #define EFI_MD_TYPE_RT_DATA     6       /* Runtime services data. */
   66 #define EFI_MD_TYPE_FREE        7       /* Unused/free memory. */
   67 #define EFI_MD_TYPE_BAD         8       /* Bad memory */
   68 #define EFI_MD_TYPE_RECLAIM     9       /* ACPI reclaimable memory. */
   69 #define EFI_MD_TYPE_FIRMWARE    10      /* ACPI NV memory */
   70 #define EFI_MD_TYPE_IOMEM       11      /* Memory-mapped I/O. */
   71 #define EFI_MD_TYPE_IOPORT      12      /* I/O port space. */
   72 #define EFI_MD_TYPE_PALCODE     13      /* PAL */
   73 #define EFI_MD_TYPE_PERSISTENT  14      /* Persistent memory. */
   74         uint32_t        __pad;
   75         uint64_t        md_phys;
   76         void            *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 \
   89                                 0x0000000000010000UL
   90 #define EFI_MD_ATTR_RO          0x0000000000020000UL
   91 #define EFI_MD_ATTR_RT          0x8000000000000000UL
   92 };
   93 
   94 #define efi_next_descriptor(ptr, size) \
   95     ((struct efi_md *)(((uint8_t *)(ptr)) + (size)))
   96 
   97 struct efi_tm {
   98         uint16_t        tm_year;                /* 1998 - 20XX */
   99         uint8_t         tm_mon;                 /* 1 - 12 */
  100         uint8_t         tm_mday;                /* 1 - 31 */
  101         uint8_t         tm_hour;                /* 0 - 23 */
  102         uint8_t         tm_min;                 /* 0 - 59 */
  103         uint8_t         tm_sec;                 /* 0 - 59 */
  104         uint8_t         __pad1;
  105         uint32_t        tm_nsec;                /* 0 - 999,999,999 */
  106         int16_t         tm_tz;                  /* -1440 to 1440 or 2047 */
  107         uint8_t         tm_dst;
  108         uint8_t         __pad2;
  109 };
  110 
  111 struct efi_tmcap {
  112         uint32_t        tc_res;         /* 1e-6 parts per million */
  113         uint32_t        tc_prec;        /* hertz */
  114         uint8_t         tc_stz;         /* Set clears sub-second time */
  115 };
  116 
  117 struct efi_tblhdr {
  118         uint64_t        th_sig;
  119         uint32_t        th_rev;
  120         uint32_t        th_hdrsz;
  121         uint32_t        th_crc32;
  122         uint32_t        __res;
  123 };
  124 
  125 struct efi_rt {
  126         struct efi_tblhdr rt_hdr;
  127         efi_status      (*rt_gettime)(struct efi_tm *, struct efi_tmcap *)
  128             EFIABI_ATTR;
  129         efi_status      (*rt_settime)(struct efi_tm *) EFIABI_ATTR;
  130         efi_status      (*rt_getwaketime)(uint8_t *, uint8_t *,
  131             struct efi_tm *) EFIABI_ATTR;
  132         efi_status      (*rt_setwaketime)(uint8_t, struct efi_tm *)
  133             EFIABI_ATTR;
  134         efi_status      (*rt_setvirtual)(u_long, u_long, uint32_t,
  135             struct efi_md *) EFIABI_ATTR;
  136         efi_status      (*rt_cvtptr)(u_long, void **) EFIABI_ATTR;
  137         efi_status      (*rt_getvar)(efi_char *, struct uuid *, uint32_t *,
  138             u_long *, void *) EFIABI_ATTR;
  139         efi_status      (*rt_scanvar)(u_long *, efi_char *, struct uuid *)
  140             EFIABI_ATTR;
  141         efi_status      (*rt_setvar)(efi_char *, struct uuid *, uint32_t,
  142             u_long, void *) EFIABI_ATTR;
  143         efi_status      (*rt_gethicnt)(uint32_t *) EFIABI_ATTR;
  144         efi_status      (*rt_reset)(enum efi_reset, efi_status, u_long,
  145             efi_char *) EFIABI_ATTR;
  146 };
  147 
  148 struct efi_systbl {
  149         struct efi_tblhdr st_hdr;
  150 #define EFI_SYSTBL_SIG  0x5453595320494249UL
  151         efi_char        *st_fwvendor;
  152         uint32_t        st_fwrev;
  153         uint32_t        __pad;
  154         void            *st_cin;
  155         void            *st_cinif;
  156         void            *st_cout;
  157         void            *st_coutif;
  158         void            *st_cerr;
  159         void            *st_cerrif;
  160         uint64_t        st_rt;
  161         void            *st_bs;
  162         u_long          st_entries;
  163         uint64_t        st_cfgtbl;
  164 };
  165 
  166 #ifdef _KERNEL
  167 extern vm_paddr_t efi_systbl_phys;
  168 #endif  /* _KERNEL */
  169 
  170 #endif /* _SYS_EFI_H_ */

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