boot.h   [plain text]

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 *
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. The rights granted to you under the License
 * may not be used to create, or enable the creation or redistribution of,
 * unlawful or unlicensed copies of an Apple operating system, or to
 * circumvent, violate, or enable the circumvention or violation of, any
 * terms of an Apple operating system software license agreement.
 *
 * Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this file.
 *
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 *
 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
 */
#ifndef _PEXPERT_I386_BOOT_H
#define _PEXPERT_I386_BOOT_H

#include <stdint.h>

/*
 * What the booter leaves behind for the kernel.
 */

/*
 * Types of boot driver that may be loaded by the booter.
 */
enum {
	kBootDriverTypeInvalid = 0,
	kBootDriverTypeKEXT    = 1,
	kBootDriverTypeMKEXT   = 2
};

enum {
	kEfiReservedMemoryType      = 0,
	kEfiLoaderCode              = 1,
	kEfiLoaderData              = 2,
	kEfiBootServicesCode        = 3,
	kEfiBootServicesData        = 4,
	kEfiRuntimeServicesCode     = 5,
	kEfiRuntimeServicesData     = 6,
	kEfiConventionalMemory      = 7,
	kEfiUnusableMemory          = 8,
	kEfiACPIReclaimMemory       = 9,
	kEfiACPIMemoryNVS           = 10,
	kEfiMemoryMappedIO          = 11,
	kEfiMemoryMappedIOPortSpace = 12,
	kEfiPalCode                 = 13,
	kEfiMaxMemoryType           = 14
};

/*
 * Memory range descriptor.
 */
typedef struct EfiMemoryRange {
	uint32_t Type;
	uint32_t Pad;
	uint64_t PhysicalStart;
	uint64_t VirtualStart;
	uint64_t NumberOfPages;
	uint64_t Attribute;
} EfiMemoryRange;

#define BOOT_LINE_LENGTH        1024
#define BOOT_STRING_LEN         BOOT_LINE_LENGTH

/*
 * Video information..
 */

struct Boot_VideoV1 {
	uint32_t        v_baseAddr;     /* Base address of video memory */
	uint32_t        v_display;      /* Display Code (if Applicable */
	uint32_t        v_rowBytes;     /* Number of bytes per pixel row */
	uint32_t        v_width;        /* Width */
	uint32_t        v_height;       /* Height */
	uint32_t        v_depth;        /* Pixel Depth */
};
typedef struct Boot_VideoV1     Boot_VideoV1;

struct Boot_Video {
	uint32_t        v_display;      /* Display Code (if Applicable */
	uint32_t        v_rowBytes;     /* Number of bytes per pixel row */
	uint32_t        v_width;        /* Width */
	uint32_t        v_height;       /* Height */
	uint32_t        v_depth;        /* Pixel Depth */
	uint8_t         v_rotate;       /* Rotation */
	uint8_t         v_resv_byte[3]; /* Reserved */
	uint32_t        v_resv[6];      /* Reserved */
	uint64_t        v_baseAddr;     /* Base address of video memory */
};
typedef struct Boot_Video       Boot_Video;

/* Values for v_display */

#define GRAPHICS_MODE         1
#define FB_TEXT_MODE          2

/* Struct describing an image passed in by the booter */
struct boot_icon_element {
	unsigned int    width;
	unsigned int    height;
	int             y_offset_from_center;
	unsigned int    data_size;
	unsigned int    __reserved1[4];
	unsigned char   data[0];
};
typedef struct boot_icon_element boot_icon_element;

/* Boot argument structure - passed into Mach kernel at boot time.
 * "Revision" can be incremented for compatible changes
 */
#define kBootArgsRevision               0
#define kBootArgsVersion                2

/* Snapshot constants of previous revisions that are supported */
#define kBootArgsVersion1               1
#define kBootArgsVersion2               2
#define kBootArgsRevision2_0            0

#define kBootArgsEfiMode32              32
#define kBootArgsEfiMode64              64

/* Bitfields for boot_args->flags */
#define kBootArgsFlagRebootOnPanic      (1 << 0)
#define kBootArgsFlagHiDPI              (1 << 1)
#define kBootArgsFlagBlack              (1 << 2)
#define kBootArgsFlagCSRActiveConfig    (1 << 3)
#define kBootArgsFlagCSRConfigMode      (1 << 4)
#define kBootArgsFlagCSRBoot            (1 << 5)
#define kBootArgsFlagBlackBg            (1 << 6)
#define kBootArgsFlagLoginUI            (1 << 7)
#define kBootArgsFlagInstallUI          (1 << 8)

typedef struct boot_args {
	uint16_t    Revision;   /* Revision of boot_args structure */
	uint16_t    Version;    /* Version of boot_args structure */

	uint8_t     efiMode;/* 32 = 32-bit, 64 = 64-bit */
	uint8_t     debugMode;/* Bit field with behavior changes */
	uint16_t    flags;

	char        CommandLine[BOOT_LINE_LENGTH];/* Passed in command line */

	uint32_t    MemoryMap;/* Physical address of memory map */
	uint32_t    MemoryMapSize;
	uint32_t    MemoryMapDescriptorSize;
	uint32_t    MemoryMapDescriptorVersion;

	Boot_VideoV1 VideoV1;   /* Video Information */

	uint32_t    deviceTreeP;  /* Physical address of flattened device tree */
	uint32_t    deviceTreeLength;/* Length of flattened tree */

	uint32_t    kaddr;        /* Physical address of beginning of kernel text */
	uint32_t    ksize;        /* Size of combined kernel text+data+efi */

	uint32_t    efiRuntimeServicesPageStart;/* physical address of defragmented runtime pages */
	uint32_t    efiRuntimeServicesPageCount;
	uint64_t    efiRuntimeServicesVirtualPageStart;/* virtual address of defragmented runtime pages */

	uint32_t    efiSystemTable;/* physical address of system table in runtime area */
	uint32_t    kslide;

	uint32_t    performanceDataStart;/* physical address of log */
	uint32_t    performanceDataSize;

	uint32_t    keyStoreDataStart;/* physical address of key store data */
	uint32_t    keyStoreDataSize;
	uint64_t    bootMemStart;
	uint64_t    bootMemSize;
	uint64_t    PhysicalMemorySize;
	uint64_t    FSBFrequency;
	uint64_t    pciConfigSpaceBaseAddress;
	uint32_t    pciConfigSpaceStartBusNumber;
	uint32_t    pciConfigSpaceEndBusNumber;
	uint32_t    csrActiveConfig;
	uint32_t    csrCapabilities;
	uint32_t    boot_SMC_plimit;
	uint16_t    bootProgressMeterStart;
	uint16_t    bootProgressMeterEnd;
	Boot_Video  Video;      /* Video Information */

	uint32_t    apfsDataStart;/* Physical address of apfs volume key structure */
	uint32_t    apfsDataSize;

	uint32_t    __reserved4[710];
} boot_args;

extern char assert_boot_args_size_is_4096[sizeof(boot_args) == 4096 ? 1 : -1];

#endif /* _PEXPERT_I386_BOOT_H */