ReactOS  0.4.15-dev-439-g292f67a
linux.h
Go to the documentation of this file.
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 along
16  * with this program; if not, write to the Free Software Foundation, Inc.,
17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18  */
19 
20 #include <fs.h>
21 #include <oslist.h>
22 
23 #ifndef __LINUX_H
24 #define __LINUX_H
25 
26 #if defined(_M_IX86) || defined(_M_AMD64)
27 
28 #define LINUX_LOADER_TYPE_LILO 0x01
29 #define LINUX_LOADER_TYPE_LOADLIN 0x11
30 #define LINUX_LOADER_TYPE_BOOTSECT 0x21
31 #define LINUX_LOADER_TYPE_SYSLINUX 0x31
32 #define LINUX_LOADER_TYPE_ETHERBOOT 0x41
33 #define LINUX_LOADER_TYPE_FREELOADER 0x81
34 
35 #define LINUX_COMMAND_LINE_MAGIC 0xA33F
36 
37 #define LINUX_SETUP_HEADER_ID 0x53726448 // 'HdrS'
38 
39 #define LINUX_BOOT_SECTOR_MAGIC 0xAA55
40 
41 #define LINUX_KERNEL_LOAD_ADDRESS 0x100000
42 
43 #define LINUX_FLAG_LOAD_HIGH 0x01
44 #define LINUX_FLAG_CAN_USE_HEAP 0x80
45 
46 #define LINUX_MAX_INITRD_ADDRESS 0x38000000
47 
48 #include <pshpack1.h>
49 typedef struct
50 {
51  UCHAR BootCode1[0x20];
52 
53  USHORT CommandLineMagic;
54  USHORT CommandLineOffset;
55 
56  UCHAR BootCode2[0x1CD];
57 
58  UCHAR SetupSectors;
59  USHORT RootFlags;
60  USHORT SystemSize;
61  USHORT SwapDevice;
64  USHORT RootDevice;
65  USHORT BootFlag; // 0xAA55
66 
67 } LINUX_BOOTSECTOR, *PLINUX_BOOTSECTOR;
68 
69 typedef struct
70 {
71  UCHAR JumpInstruction[2];
72  ULONG SetupHeaderSignature; // Signature for SETUP-header
73  USHORT Version; // Version number of header format
74  USHORT RealModeSwitch; // Default switch
75  USHORT SetupSeg; // SETUPSEG
76  USHORT StartSystemSeg;
77  USHORT KernelVersion; // Offset to kernel version string
78  UCHAR TypeOfLoader; // Loader ID
79  // =0, old one (LILO, Loadlin,
80  // Bootlin, SYSLX, bootsect...)
81  // else it is set by the loader:
82  // 0xTV: T=0 for LILO
83  // T=1 for Loadlin
84  // T=2 for bootsect-loader
85  // T=3 for SYSLX
86  // T=4 for ETHERBOOT
87  // V = version
88 
89  UCHAR LoadFlags; // flags, unused bits must be zero (RFU)
90  // LOADED_HIGH = 1
91  // bit within loadflags,
92  // if set, then the kernel is loaded high
93  // CAN_USE_HEAP = 0x80
94  // if set, the loader also has set heap_end_ptr
95  // to tell how much space behind setup.S
96  // can be used for heap purposes.
97  // Only the loader knows what is free!
98 
99  USHORT SetupMoveSize; // size to move, when we (setup) are not
100  // loaded at 0x90000. We will move ourselves
101  // to 0x90000 then just before jumping into
102  // the kernel. However, only the loader
103  // know how much of data behind us also needs
104  // to be loaded.
105 
106  ULONG Code32Start; // here loaders can put a different
107  // start address for 32-bit code.
108  //
109  // 0x1000 = default for zImage
110  //
111  // 0x100000 = default for big kernel
112 
113  ULONG RamdiskAddress; // address of loaded ramdisk image
114  // Here the loader (or kernel generator) puts
115  // the 32-bit address were it loaded the image.
116  ULONG RamdiskSize; // its size in bytes
117 
118  USHORT BootSectKludgeOffset;
119  USHORT BootSectKludgeSegment;
120  USHORT HeapEnd; // space from here (exclusive) down to
121  // end of setup code can be used by setup
122  // for local heap purposes.
123  USHORT Pad1;
124  ULONG CommandLinePointer; // 32-bit pointer to the kernel command line
125  ULONG InitrdAddressMax; // Highest legal initrd address
126 
127 
128 } LINUX_SETUPSECTOR, *PLINUX_SETUPSECTOR;
129 #include <poppack.h>
130 
131 // Implemented in linux.S
133  IN ULONG KernelSize,
134  IN PVOID KernelCurrentLoadAddress,
135  IN PVOID KernelTargetLoadAddress,
136  IN UCHAR DriveNumber,
138 
140 LoadAndBootLinux(
141  IN ULONG Argc,
142  IN PCHAR Argv[],
143  IN PCHAR Envp[]);
144 
145 #endif /* _M_IX86 || _M_AMD64 */
146 
147 #endif // defined __LINUX_H
signed char * PCHAR
Definition: retypes.h:7
#define IN
Definition: typedefs.h:39
paddr_t RamSize
Definition: mmuobject.c:64
IN PVOID IN PVOID IN USHORT Version
Definition: pci.h:361
#define __cdecl
Definition: accygwin.h:79
ULONG ARC_STATUS
Definition: arc.h:4
_In_ ULONG _In_ ULONG PartitionNumber
Definition: iofuncs.h:2056
struct _VideoMode VideoMode
VOID __cdecl BootLinuxKernel(IN ULONG KernelSize, IN PVOID KernelCurrentLoadAddress, IN PVOID KernelTargetLoadAddress, IN UCHAR DriveNumber, IN ULONG PartitionNumber)
Definition: mach.c:536
unsigned char UCHAR
Definition: xmlstorage.h:181
unsigned short USHORT
Definition: pedump.c:61
unsigned int ULONG
Definition: retypes.h:1