00e6614750
On Ampere Altra systems, the sparse population of RAM within the physical address space causes the vm_page_dump bitmap to be much larger than necessary, increasing the size from ~8 Mib to > 2 Gib (and overflowing `int` for the size). Changing the page dump bitmap also changes the minidump file format, so changes are also necessary in libkvm. Reviewed by: jhb Approved by: scottl (implicit) MFC after: 1 week Sponsored by: Ampere Computing, Inc. Differential Revision: https://reviews.freebsd.org/D26131
63 lines
2.2 KiB
C
63 lines
2.2 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2006 Peter Wemm
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* From: FreeBSD: src/sys/i386/include/minidump.h,v 1.1 2006/04/21 04:28:43
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* $FreeBSD$
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*/
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#ifndef _MACHINE_MINIDUMP_H_
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#define _MACHINE_MINIDUMP_H_
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#define MINIDUMP_MAGIC "minidump FreeBSD/arm"
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#define MINIDUMP_VERSION 2
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/*
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* The first page of vmcore is dedicated to the following header.
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* As the rest of the page is zeroed, any header extension can be
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* done without version bumping. It should be taken into account
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* only that new entries will be zero in old vmcores.
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*/
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struct minidumphdr {
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char magic[24];
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uint32_t version;
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uint32_t msgbufsize;
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uint32_t bitmapsize;
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uint32_t ptesize;
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uint32_t kernbase;
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uint32_t arch;
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uint32_t mmuformat;
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uint32_t dumpavailsize;
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};
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#define MINIDUMP_MMU_FORMAT_UNKNOWN 0
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#define MINIDUMP_MMU_FORMAT_V4 1
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#define MINIDUMP_MMU_FORMAT_V6 2
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#define MINIDUMP_MMU_FORMAT_V6_LPAE 3
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#endif /* _MACHINE_MINIDUMP_H_ */
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