arch/x86/include/sys/bootinfo.h

   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 /*
  87  *
  88  */
  89 #pragma pack(1)
  90 struct xboot_info {
  91         uint64_t        bi_next_paddr;  /* next physical address not used */
  92         native_ptr_t    bi_next_vaddr;  /* next virtual address not used */
  93         native_ptr_t    bi_cmdline;
  94         native_ptr_t    bi_phys_install;
  95         native_ptr_t    bi_rsvdmem;
  96         native_ptr_t    bi_pcimem;
  97         native_ptr_t    bi_modules;
  98         uint32_t        bi_module_cnt;
  99         uint32_t        bi_use_largepage;       /* MMU uses large pages */
 100         uint32_t        bi_use_pae;     /* MMU uses PAE mode (8 byte PTES) */
 101         uint32_t        bi_use_nx;      /* MMU uses NX bit in PTEs */
 102         uint32_t        bi_use_pge;     /* MMU uses Page Global Enable */
 103         native_ptr_t    bi_pt_window;
 104         native_ptr_t    bi_pte_to_pt_window;
 105         native_ptr_t    bi_kseg_size;   /* size used for kernel nucleus pages */
 106         uint64_t        bi_top_page_table;
 107 #if defined(__xpv)
 108         native_ptr_t    bi_xen_start_info;
 109         native_ptr_t    bi_shared_info;         /* VA for shared_info */
 110 #else
 111         native_ptr_t    bi_mb_info;             /* multiboot 1 or 2 info */
 112         int             bi_mb_version;          /* multiboot version */
 113         native_ptr_t    bi_acpi_rsdp;
 114         native_ptr_t    bi_smbios;
 115 #endif
 116 };
 117 #pragma pack()
 118
 119 #ifdef  __cplusplus
 120 }
 121 #endif
 122
 123 #endif  /* _SYS_BOOTINFO_H */