freebsd-skq/sys/powerpc/include/minidump.h
D Scott Phillips 00e6614750 Sparsify the vm_page_dump bitmap
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
2020-09-21 22:21:59 +00:00

54 lines
1.8 KiB
C

/*-
* Copyright (c) 2006 Peter Wemm
* 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 ``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 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.
*
* From i386: FreeBSD: 157909 2006-04-21 04:28:43Z peter
* $FreeBSD$
*/
#ifndef _MACHINE_MINIDUMP_H_
#define _MACHINE_MINIDUMP_H_ 1
#define MINIDUMP_MAGIC "minidump FreeBSD/powerpc64"
#define MINIDUMP_VERSION 2
struct minidumphdr {
char magic[32];
char mmu_name[32];
uint32_t version;
uint32_t msgbufsize;
uint32_t bitmapsize;
uint32_t pmapsize;
uint64_t kernbase;
uint64_t kernend;
uint64_t dmapbase;
uint64_t dmapend;
int hw_direct_map;
uint64_t startkernel;
uint64_t endkernel;
uint32_t dumpavailsize;
};
#endif /* _MACHINE_MINIDUMP_H_ */