freebsd-dev/sys/powerpc/include/dump.h
Mitchell Horne 10fe6f80a6 minidump: Use the provided dump bitset
When constructing the set of dumpable pages, use the bitset provided by
the state argument, rather than assuming vm_page_dump invariably. For
normal kernel minidumps this will be a pointer to vm_page_dump, but when
dumping the live system it will not.

To do this, the functions in vm_dumpset.h are extended to accept the
desired bitset as an argument. Note that this provided bitset is assumed
to be derived from vm_page_dump, and therefore has the same size.

Reviewed by:	kib, markj, jhb
MFC after:	2 weeks
Sponsored by:	Juniper Networks, Inc.
Sponsored by:	Klara, Inc.
Differential Revision:	https://reviews.freebsd.org/D31992
2021-11-19 15:05:52 -04:00

76 lines
2.4 KiB
C

/*-
* Copyright (c) 2014 EMC Corp.
* Author: Conrad Meyer <conrad.meyer@isilon.com>
* 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
*
* $FreeBSD$
*/
#ifndef _MACHINE_DUMP_H_
#define _MACHINE_DUMP_H_
#define KERNELDUMP_ARCH_VERSION KERNELDUMP_POWERPC_VERSION
#define EM_VALUE ELF_ARCH /* Defined in powerpc/include/elf.h */
#define DUMPSYS_MD_PA_NPAIRS (PHYS_AVAIL_SZ + 1)
#define DUMPSYS_NUM_AUX_HDRS 0
/* How often to check the dump progress bar? */
#define DUMPSYS_PB_CHECK_BITS 20 /* Every 1MB */
void dumpsys_pa_init(void);
void dumpsys_unmap_chunk(vm_paddr_t, size_t, void *);
size_t dumpsys_scan_pmap(struct bitset *);
void *dumpsys_dump_pmap_init(unsigned blkpgs);
void *dumpsys_dump_pmap(void *ctx, void *buf, u_long *nbytes);
static inline struct dump_pa *
dumpsys_pa_next(struct dump_pa *p)
{
return (dumpsys_gen_pa_next(p));
}
static inline void
dumpsys_wbinv_all(void)
{
dumpsys_gen_wbinv_all();
}
static inline int
dumpsys_write_aux_headers(struct dumperinfo *di)
{
return (dumpsys_gen_write_aux_headers(di));
}
static inline int
dumpsys(struct dumperinfo *di)
{
return (dumpsys_generic(di));
}
#endif /* !_MACHINE_DUMP_H_ */