cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

bootx.h (4417B)

      1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
      2/*
      3 * This file describes the structure passed from the BootX application
      4 * (for MacOS) when it is used to boot Linux.
      5 *
      6 * Written by Benjamin Herrenschmidt.
      7 */
      8
      9
     10#ifndef _UAPI__ASM_BOOTX_H__
     11#define _UAPI__ASM_BOOTX_H__
     12
     13#include <linux/types.h>
     14
     15#ifdef macintosh
     16#include <Types.h>
     17#include "linux_type_defs.h"
     18#endif
     19
     20#ifdef macintosh
     21/* All this requires PowerPC alignment */
     22#pragma options align=power
     23#endif
     24
     25/* On kernel entry:
     26 *
     27 * r3 = 0x426f6f58    ('BooX')
     28 * r4 = pointer to boot_infos
     29 * r5 = NULL
     30 *
     31 * Data and instruction translation disabled, interrupts
     32 * disabled, kernel loaded at physical 0x00000000 on PCI
     33 * machines (will be different on NuBus).
     34 */
     35
     36#define BOOT_INFO_VERSION               5
     37#define BOOT_INFO_COMPATIBLE_VERSION    1
     38
     39/* Bit in the architecture flag mask. More to be defined in
     40   future versions. Note that either BOOT_ARCH_PCI or
     41   BOOT_ARCH_NUBUS is set. The other BOOT_ARCH_NUBUS_xxx are
     42   set additionally when BOOT_ARCH_NUBUS is set.
     43 */
     44#define BOOT_ARCH_PCI                   0x00000001UL
     45#define BOOT_ARCH_NUBUS                 0x00000002UL
     46#define BOOT_ARCH_NUBUS_PDM             0x00000010UL
     47#define BOOT_ARCH_NUBUS_PERFORMA        0x00000020UL
     48#define BOOT_ARCH_NUBUS_POWERBOOK       0x00000040UL
     49
     50/*  Maximum number of ranges in phys memory map */
     51#define MAX_MEM_MAP_SIZE				26
     52
     53/* This is the format of an element in the physical memory map. Note that
     54   the map is optional and current BootX will only build it for pre-PCI
     55   machines */
     56typedef struct boot_info_map_entry
     57{
     58    __u32       physAddr;                /* Physical starting address */
     59    __u32       size;                    /* Size in bytes */
     60} boot_info_map_entry_t;
     61
     62
     63/* Here are the boot informations that are passed to the bootstrap
     64 * Note that the kernel arguments and the device tree are appended
     65 * at the end of this structure. */
     66typedef struct boot_infos
     67{
     68    /* Version of this structure */
     69    __u32       version;
     70    /* backward compatible down to version: */
     71    __u32       compatible_version;
     72
     73    /* NEW (vers. 2) this holds the current _logical_ base addr of
     74       the frame buffer (for use by early boot message) */
     75    __u8*       logicalDisplayBase;
     76
     77    /* NEW (vers. 4) Apple's machine identification */
     78    __u32       machineID;
     79
     80    /* NEW (vers. 4) Detected hw architecture */
     81    __u32       architecture;
     82
     83    /* The device tree (internal addresses relative to the beginning of the tree,
     84     * device tree offset relative to the beginning of this structure).
     85     * On pre-PCI macintosh (BOOT_ARCH_PCI bit set to 0 in architecture), this
     86     * field is 0.
     87     */
     88    __u32       deviceTreeOffset;        /* Device tree offset */
     89    __u32       deviceTreeSize;          /* Size of the device tree */
     90
     91    /* Some infos about the current MacOS display */
     92    __u32       dispDeviceRect[4];       /* left,top,right,bottom */
     93    __u32       dispDeviceDepth;         /* (8, 16 or 32) */
     94    __u8*       dispDeviceBase;          /* base address (physical) */
     95    __u32       dispDeviceRowBytes;      /* rowbytes (in bytes) */
     96    __u32       dispDeviceColorsOffset;  /* Colormap (8 bits only) or 0 (*) */
     97    /* Optional offset in the registry to the current
     98     * MacOS display. (Can be 0 when not detected) */
     99     __u32      dispDeviceRegEntryOffset;
    100
    101    /* Optional pointer to boot ramdisk (offset from this structure) */
    102    __u32       ramDisk;
    103    __u32       ramDiskSize;             /* size of ramdisk image */
    104
    105    /* Kernel command line arguments (offset from this structure) */
    106    __u32       kernelParamsOffset;
    107
    108    /* ALL BELOW NEW (vers. 4) */
    109
    110    /* This defines the physical memory. Valid with BOOT_ARCH_NUBUS flag
    111       (non-PCI) only. On PCI, memory is contiguous and it's size is in the
    112       device-tree. */
    113    boot_info_map_entry_t
    114    	        physMemoryMap[MAX_MEM_MAP_SIZE]; /* Where the phys memory is */
    115    __u32       physMemoryMapSize;               /* How many entries in map */
    116
    117
    118    /* The framebuffer size (optional, currently 0) */
    119    __u32       frameBufferSize;         /* Represents a max size, can be 0. */
    120
    121    /* NEW (vers. 5) */
    122
    123    /* Total params size (args + colormap + device tree + ramdisk) */
    124    __u32       totalParamsSize;
    125
    126} boot_infos_t;
    127
    128
    129#ifdef macintosh
    130#pragma options align=reset
    131#endif
    132
    133#endif /* _UAPI__ASM_BOOTX_H__ */