f15c6971d1
- add kvm_i386pae.c (used for PAE memory translations), and update Makefile
for libkvm build.
- in pdppaddr: pass a flag to indicate PAE mode. Use a bit ignored
by the MMU. Mask address with PG_FRAME to avoid side effects.
Tested with vmstat(1)/netstat(1) to debug core files of PAE and !PAE
kernels. Older kernel dumps will default to native i386 (!PAE) mode.
XXX Currently, savecore(8) will fail to dump a PAE kernel in a !PAE
environment (and reciprocally). So you need to sync and reboot
with a kernel of the same mode as the one that crashed. Once the dump
is successful, this does not matter anymore.
63 lines
1.8 KiB
C
63 lines
1.8 KiB
C
/* $NetBSD: kcore.h,v 1.5 2010/10/05 23:48:16 jym Exp $ */
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/*
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* Copyright (c) 1996 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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/*
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* Modified for NetBSD/i386 by Jason R. Thorpe, Numerical Aerospace
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* Simulation Facility, NASA Ames Research Center.
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*/
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#ifndef _I386_KCORE_H_
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#define _I386_KCORE_H_
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typedef struct cpu_kcore_hdr {
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uint32_t pdppaddr; /* PA of PDP */
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uint32_t nmemsegs; /* Number of RAM segments */
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#if 0
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phys_ram_seg_t memsegs[]; /* RAM segments */
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#endif
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} cpu_kcore_hdr_t;
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/*
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* Used to indicate that PAE should be used for virtual address
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* translation. As PDPpaddr is expected to be PAGE_SIZE aligned,
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* this can be safely OR'ed in pdppaddr.
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* To avoid any kind of conflict with existing MMU bits, we chose one
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* ignored by hardware
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*/
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#define I386_KCORE_PAE PG_AVAIL1
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#ifdef _KERNEL
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void dumpsys(void);
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extern struct pcb dumppcb;
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extern int sparse_dump;
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#endif
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#endif /* _I386_KCORE_H_ */
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