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      1 /*	$NetBSD: kcore.h,v 1.7 2008/04/28 20:23:37 martin Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1996 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Paul Kranenburg.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 /*
     33  * The layout of a kernel core on the dump device is as follows:
     34  *	a `struct kcore_seg' of type CORE_CPU
     35  *	a `struct cpu_kcore_hdr'
     36  */
     37 
     38 struct cpu_kcore_4mbseg {
     39 	uint64_t	va;		/* virtual address */
     40 	uint64_t	pa;		/* physical address */
     41 };
     42 
     43 typedef struct cpu_kcore_hdr {
     44 	int		cputype;	/* CPU type associated with this dump */
     45 
     46 	int		nmemseg;	/* # of physical memory segments */
     47 	uint64_t	memsegoffset;	/* start of memseg array (relative */
     48 					/*  to the start of this header) */
     49 
     50 	int		nsegmap;	/* # of kernel segs */
     51 	uint64_t	segmapoffset;	/* start of segmap array (relative */
     52 					/*  to the start of this header) */
     53 
     54 	uint64_t	kernbase;	/* copy of KERNBASE goes here */
     55 	uint64_t	cpubase;	/* Pointer to cpu_info structure */
     56 
     57 	uint64_t	ktextbase;	/* Virtual start of text segment */
     58 	uint64_t	ktextp;		/* Physical address of 4MB locked TLB */
     59 	uint64_t	ktextsz;	/* Size of locked kernel text segment. */
     60 
     61 	uint64_t	kdatabase;	/* Virtual start of data segment */
     62 	uint64_t	kdatap;		/* Physical address of 4MB locked TLB */
     63 	uint64_t	kdatasz;	/* Size of locked kernel data segment. */
     64 
     65 	uint64_t	newmagic;	/* magic value: everything beyound is
     66 					   valid */
     67 #define	SPARC64_KCORE_NEWMAGIC	0x3AFEC01E
     68 	uint64_t	num4mbsegs;	/* number of 4MB segments */
     69 	uint64_t	off4mbsegs;	/* start of 4m segment array
     70 					   (relative to start of this
     71 					   header) */
     72 
     73 	uint64_t	numcpuinfos;	/* number of per CPU mapping infos */
     74 	uint64_t	percpusz;	/* size of per cpu mapping */
     75 	uint64_t	thiscpu;	/* index of the cpu writing the dump */
     76 	uint64_t	cpusp;		/* physical address of first per-cpu
     77 					   mapping */
     78 } cpu_kcore_hdr_t;
     79