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/*
* This file and its contents are supplied under the terms of the
* Common Development and Distribution License ("CDDL"), version 1.0.
* You may only use this file in accordance with the terms of version
* 1.0 of the CDDL.
*
* A full copy of the text of the CDDL should have accompanied this
* source. A copy of the CDDL is also available via the Internet at
* http://www.illumos.org/license/CDDL.
*/
/*
* Copyright 2015 Toomas Soome <tsoome@me.com>
*/
#ifndef _LINUX_H
#define _LINUX_H
#ifdef __cplusplus
extern "C" {
#endif
#ifndef ASM_FILE
/* For the Linux/i386 boot protocol version 2.10. */
struct linux_kernel_header
{
uint8_t code1[0x0020];
uint16_t cl_magic; /* Magic number 0xA33F */
uint16_t cl_offset; /* The offset of command line */
uint8_t code2[0x01F1 - 0x0020 - 2 - 2];
uint8_t setup_sects; /* The size of the setup in sectors */
uint16_t root_flags; /* If the root is mounted readonly */
uint16_t syssize; /* obsolete */
uint16_t swap_dev; /* obsolete */
uint16_t ram_size; /* obsolete */
uint16_t vid_mode; /* Video mode control */
uint16_t root_dev; /* Default root device number */
uint16_t boot_flag; /* 0xAA55 magic number */
uint16_t jump; /* Jump instruction */
uint32_t header; /* Magic signature "HdrS" */
uint16_t version; /* Boot protocol version supported */
uint32_t realmode_swtch; /* Boot loader hook */
uint16_t start_sys; /* The load-low segment (obsolete) */
uint16_t kernel_version; /* Points to kernel version string */
uint8_t type_of_loader; /* Boot loader identifier */
uint8_t loadflags; /* Boot protocol option flags */
uint16_t setup_move_size; /* Move to high memory size */
uint32_t code32_start; /* Boot loader hook */
uint32_t ramdisk_image; /* initrd load address */
uint32_t ramdisk_size; /* initrd size */
uint32_t bootsect_kludge; /* obsolete */
uint16_t heap_end_ptr; /* Free memory after setup end */
uint16_t pad1; /* Unused */
uint32_t cmd_line_ptr; /* Points to the kernel command line */
uint32_t initrd_addr_max; /* Highest address for initrd */
uint32_t kernel_alignment;
uint8_t relocatable;
uint8_t min_alignment;
uint8_t pad[2];
uint32_t cmdline_size;
uint32_t hardware_subarch;
uint64_t hardware_subarch_data;
uint32_t payload_offset;
uint32_t payload_length;
uint64_t setup_data;
uint64_t pref_address;
uint32_t init_size;
} __attribute__ ((packed));
#endif
#define LINUX_VID_MODE_NORMAL 0xFFFF
#define LINUX_VID_MODE_EXTENDED 0xFFFE
#define LINUX_VID_MODE_ASK 0xFFFD
#define BOOTSEC_SIGNATURE 0xAA55
#define LINUX_BOOT_LOADER_TYPE 0x72
#define LINUX_BZIMAGE_ADDR 0x100000
#define LINUX_CL_END_OFFSET 0x90FF
#define LINUX_CL_MAGIC 0xA33F
#define LINUX_CL_OFFSET 0x9000
#define LINUX_DEFAULT_SETUP_SECTS 4
#define LINUX_ESP 0x9000
#define LINUX_FLAG_BIG_KERNEL 0x1
#define LINUX_FLAG_CAN_USE_HEAP 0x80
#define LINUX_HEAP_END_OFFSET (0x9000 - 0x200)
#define LINUX_MAGIC_SIGNATURE 0x53726448
#define LINUX_MAX_SETUP_SECTS 64
#define LINUX_OLD_REAL_MODE_ADDR 0x90000
#define LINUX_SETUP_MOVE_SIZE 0x9100
#define LINUX_ZIMAGE_ADDR 0x10000
#define LINUX_INITRD_MAX_ADDRESS 0x38000000
#ifdef __cplusplus
}
#endif
#endif /* _LINUX_H */
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