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      1 /*	$NetBSD: bootspace.h,v 1.1 2022/08/20 23:15:37 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1997 Charles D. Cranor and Washington University.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 /*
     29  * Copyright (c) 2001 Wasabi Systems, Inc.
     30  * All rights reserved.
     31  *
     32  * Written by Frank van der Linden for Wasabi Systems, Inc.
     33  *
     34  * Redistribution and use in source and binary forms, with or without
     35  * modification, are permitted provided that the following conditions
     36  * are met:
     37  * 1. Redistributions of source code must retain the above copyright
     38  *    notice, this list of conditions and the following disclaimer.
     39  * 2. Redistributions in binary form must reproduce the above copyright
     40  *    notice, this list of conditions and the following disclaimer in the
     41  *    documentation and/or other materials provided with the distribution.
     42  * 3. All advertising materials mentioning features or use of this software
     43  *    must display the following acknowledgement:
     44  *      This product includes software developed for the NetBSD Project by
     45  *      Wasabi Systems, Inc.
     46  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
     47  *    or promote products derived from this software without specific prior
     48  *    written permission.
     49  *
     50  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
     51  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     52  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     53  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
     54  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     55  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     56  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     57  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     58  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     59  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     60  * POSSIBILITY OF SUCH DAMAGE.
     61  */
     62 
     63 #ifndef	_X86_BOOTSPACE_H_
     64 #define	_X86_BOOTSPACE_H_
     65 
     66 #include <sys/types.h>
     67 
     68 #define BTSEG_NONE	0
     69 #define BTSEG_TEXT	1
     70 #define BTSEG_RODATA	2
     71 #define BTSEG_DATA	3
     72 #define BTSPACE_NSEGS	64
     73 
     74 struct bootspace {
     75 	struct {
     76 		vaddr_t va;
     77 		paddr_t pa;
     78 		size_t sz;
     79 	} head;
     80 
     81 	/* Kernel segments. */
     82 	struct {
     83 		int type;
     84 		vaddr_t va;
     85 		paddr_t pa;
     86 		size_t sz;
     87 	} segs[BTSPACE_NSEGS];
     88 
     89 	/*
     90 	 * The area used by the early kernel bootstrap. It contains the kernel
     91 	 * symbols, the preloaded modules, the bootstrap tables, and the ISA I/O
     92 	 * mem.
     93 	 */
     94 	struct {
     95 		vaddr_t va;
     96 		paddr_t pa;
     97 		size_t sz;
     98 	} boot;
     99 
    100 	/* A magic VA usable by the bootstrap code. */
    101 	vaddr_t spareva;
    102 
    103 	/* Virtual address of the page directory. */
    104 	vaddr_t pdir;
    105 
    106 	/* Area dedicated to kernel modules (amd64 only). */
    107 	vaddr_t smodule;
    108 	vaddr_t emodule;
    109 };
    110 
    111 #endif	/* _X86_BOOTSPACE_H_ */
    112