reactos/boot/freeldr/freeldr/include/reactos.h

   1 /*
   2  *  FreeLoader
   3  *  Copyright (C) 1998-2003  Brian Palmer  <brianp@sginet.com>
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, write to the Free Software
  17  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19
  20 #ifndef __REACTOS_H
  21 #define __REACTOS_H
  22
  23 /* Base Addres of Kernel in Physical Memory */
  24 #define KERNEL_BASE_PHYS 0x800000
  25
  26 #if !defined(_M_AMD64)
  27
  28 /* Bits to shift to convert a Virtual Address into an Offset in the Page Table */
  29 #define PFN_SHIFT 12
  30
  31 /* Bits to shift to convert a Virtual Address into an Offset in the Page Directory */
  32 #define PDE_SHIFT 22
  33 #define PDE_SHIFT_PAE 18
  34
  35 /* Converts a Physical Address Pointer into a Page Frame Number */
  36 #define PaPtrToPfn(p) \
  37     (((ULONG_PTR)&p) >> PFN_SHIFT)
  38
  39 /* Converts a Physical Address into a Page Frame Number */
  40 #define PaToPfn(p) \
  41     ((p) >> PFN_SHIFT)
  42
  43 #define STARTUP_BASE                0xC0000000
  44 #define HYPERSPACE_BASE             0xC0400000
  45 #define HAL_BASE                    0xFFC00000
  46 #define APIC_BASE                   0xFFFE0000
  47
  48 #define LowMemPageTableIndex        0
  49 #define StartupPageTableIndex       (STARTUP_BASE >> 22)
  50 #define HyperspacePageTableIndex    (HYPERSPACE_BASE >> 22)
  51 #define HalPageTableIndex           (HAL_BASE >> 22)
  52
  53 typedef struct _PAGE_DIRECTORY_X86
  54 {
  55     HARDWARE_PTE Pde[1024];
  56 } PAGE_DIRECTORY_X86, *PPAGE_DIRECTORY_X86;
  57
  58 #endif
  59
  60 ///////////////////////////////////////////////////////////////////////////////////////
  61 //
  62 // ReactOS Loading Functions
  63 //
  64 ///////////////////////////////////////////////////////////////////////////////////////
  65 VOID LoadAndBootReactOS(PCSTR OperatingSystemName);
  66
  67 ///////////////////////////////////////////////////////////////////////////////////////
  68 //
  69 // ReactOS Setup Loader Functions
  70 //
  71 ///////////////////////////////////////////////////////////////////////////////////////
  72 VOID ReactOSRunSetupLoader(VOID);
  73
  74 ///////////////////////////////////////////////////////////////////////////////////////
  75 //
  76 // ARC Path Functions
  77 //
  78 ///////////////////////////////////////////////////////////////////////////////////////
  79 BOOLEAN DissectArcPath(CHAR *ArcPath, CHAR *BootPath, ULONG* BootDrive, ULONG* BootPartition);
  80 VOID ConstructArcPath(PCHAR ArcPath, PCHAR SystemFolder, ULONG Disk, ULONG Partition);
  81 ULONG ConvertArcNameToBiosDriveNumber(PCHAR ArcPath);
  82
  83 ///////////////////////////////////////////////////////////////////////////////////////
  84 //
  85 // Loader Functions And Definitions
  86 //
  87 ///////////////////////////////////////////////////////////////////////////////////////
  88 extern ROS_LOADER_PARAMETER_BLOCK LoaderBlock; /* Multiboot info structure passed to kernel */
  89 extern char                                     reactos_kernel_cmdline[255];    // Command line passed to kernel
  90 extern LOADER_MODULE            reactos_modules[64];            // Array to hold boot module info loaded for the kernel
  91 extern char                                     reactos_module_strings[64][256];        // Array to hold module names
  92 typedef struct _reactos_mem_data {
  93     unsigned long                       memory_map_descriptor_size;
  94     memory_map_t                        memory_map[32];         // Memory map
  95 } reactos_mem_data_t;
  96 extern reactos_mem_data_t reactos_mem_data;
  97 #define reactos_memory_map_descriptor_size reactos_mem_data.memory_map_descriptor_size
  98 #define reactos_memory_map reactos_mem_data.memory_map
  99
 100 VOID FASTCALL FrLdrSetupPae(ULONG Magic);
 101 VOID FASTCALL FrLdrSetupPageDirectory(VOID);
 102 VOID FASTCALL FrLdrGetPaeMode(VOID);
 103 BOOLEAN NTAPI FrLdrMapKernel(FILE *KernelImage);
 104 ULONG_PTR NTAPI FrLdrCreateModule(LPCSTR ModuleName);
 105 ULONG_PTR NTAPI FrLdrLoadModule(FILE *ModuleImage, LPCSTR ModuleName, PULONG ModuleSize);
 106 BOOLEAN NTAPI FrLdrCloseModule(ULONG_PTR ModuleBase, ULONG dwModuleSize);
 107 VOID NTAPI FrLdrStartup(ULONG Magic);
 108 typedef VOID (FASTCALL *ROS_KERNEL_ENTRY_POINT)(ULONG Magic, PROS_LOADER_PARAMETER_BLOCK LoaderBlock);
 109
 110 PVOID
 111 NTAPI
 112 FrLdrMapImage(
 113     IN FILE *Image,
 114     IN PCHAR ShortName,
 115     IN ULONG ImageType
 116 );
 117
 118 PVOID
 119 NTAPI
 120 FrLdrReadAndMapImage(
 121     IN FILE *Image,
 122     IN PCHAR ShortName,
 123     IN ULONG ImageType
 124 );
 125
 126 PVOID
 127 NTAPI
 128 FrLdrLoadImage(
 129     IN PCHAR szFileName,
 130     IN INT nPos,
 131     IN ULONG ImageType
 132 );
 133
 134 #endif // defined __REACTOS_H