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/*-
* Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
/*
* i386 fully-qualified device descriptor.
* Note, this must match the 'struct devdesc' declaration
* in bootstrap.h and also with struct zfs_devdesc for zfs
* support.
*/
struct i386_devdesc
{
struct devsw *d_dev;
int d_type;
int d_unit;
union
{
struct
{
void *data;
int slice;
int partition;
off_t offset;
} biosdisk;
struct
{
void *data;
} bioscd;
struct
{
void *data;
uint64_t pool_guid;
uint64_t root_guid;
} zfs;
} d_kind;
};
/*
* relocater trampoline support.
*/
struct relocate_data {
uint32_t src;
uint32_t dest;
uint32_t size;
};
extern void relocater(void);
extern uint32_t relocater_data;
extern uint32_t relocater_size;
extern uint16_t relocator_ip;
extern uint16_t relocator_cs;
extern uint16_t relocator_ds;
extern uint16_t relocator_es;
extern uint16_t relocator_fs;
extern uint16_t relocator_gs;
extern uint16_t relocator_ss;
extern uint16_t relocator_sp;
extern uint32_t relocator_esi;
extern uint32_t relocator_eax;
extern uint32_t relocator_ebx;
extern uint32_t relocator_edx;
extern uint32_t relocator_ebp;
extern uint16_t relocator_a20_enabled;
int i386_getdev(void **vdev, const char *devspec, const char **path);
char *i386_fmtdev(void *vdev);
int i386_setcurrdev(struct env_var *ev, int flags, const void *value);
extern struct devdesc currdev; /* our current device */
#define MAXDEV 31 /* maximum number of distinct devices */
#define MAXBDDEV MAXDEV
/* exported devices XXX rename? */
extern struct devsw bioscd;
extern struct devsw biosdisk;
extern struct devsw pxedisk;
extern struct fs_ops pxe_fsops;
int bc_add(int biosdev); /* Register CD booted from. */
int bc_getdev(struct i386_devdesc *dev); /* return dev_t for (dev) */
int bc_bios2unit(int biosdev); /* xlate BIOS device -> bioscd unit */
int bc_unit2bios(int unit); /* xlate bioscd unit -> BIOS device */
uint32_t bd_getbigeom(int bunit); /* return geometry in bootinfo format */
int bd_bios2unit(int biosdev); /* xlate BIOS device -> biosdisk unit */
int bd_unit2bios(int unit); /* xlate biosdisk unit -> BIOS device */
int bd_getdev(struct i386_devdesc *dev); /* return dev_t for (dev) */
ssize_t i386_copyin(const void *src, vm_offset_t dest, const size_t len);
ssize_t i386_copyout(const vm_offset_t src, void *dest, const size_t len);
ssize_t i386_readin(const int fd, vm_offset_t dest, const size_t len);
struct preloaded_file;
void bios_addsmapdata(struct preloaded_file *);
void bios_getsmap(void);
void bios_getmem(void);
extern uint32_t bios_basemem; /* base memory in bytes */
extern uint32_t bios_extmem; /* extended memory in bytes */
extern vm_offset_t memtop; /* last address of physical memory + 1 */
extern vm_offset_t memtop_copyin; /* memtop less heap size for the cases */
/* when heap is at the top of */
/* extended memory; for other cases */
/* just the same as memtop */
extern uint32_t high_heap_size; /* extended memory region available */
extern vm_offset_t high_heap_base; /* for use as the heap */
void biospci_detect(void);
int biospci_find_devclass(uint32_t class, int index, uint32_t *locator);
int biospci_read_config(uint32_t locator, int offset, int width, uint32_t *val);
uint32_t biospci_locator(int8_t bus, uint8_t device, uint8_t function);
int biospci_write_config(uint32_t locator, int offset, int width, uint32_t val);
void biosacpi_detect(void);
int i386_autoload(void);
int bi_getboothowto(char *kargs);
void bi_setboothowto(int howto);
vm_offset_t bi_copyenv(vm_offset_t addr);
int bi_load32(char *args, int *howtop, int *bootdevp, vm_offset_t *bip,
vm_offset_t *modulep, vm_offset_t *kernend);
int bi_load64(char *args, vm_offset_t addr, vm_offset_t *modulep,
vm_offset_t *kernend, int add_smap);
void pxe_enable(void *pxeinfo);
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