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Diffstat (limited to 'stand/i386/libi386/libi386.h')
| -rw-r--r-- | stand/i386/libi386/libi386.h | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/stand/i386/libi386/libi386.h b/stand/i386/libi386/libi386.h new file mode 100644 index 0000000000000..e65a060acb77e --- /dev/null +++ b/stand/i386/libi386/libi386.h @@ -0,0 +1,156 @@ +/*- + * 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); + +/* + * The relocater_data[] is fixed size array allocated in relocater_tramp.S + */ +extern struct relocate_data 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); |