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/*
* Hypervisor-assisted dump
*
* Linas Vepstas, Manish Ahuja 2008
* Copyright 2008 IBM Corp.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#ifndef _PPC64_PHYP_DUMP_H
#define _PPC64_PHYP_DUMP_H
#ifdef CONFIG_PHYP_DUMP
/* The RMR region will be saved for later dumping
* whenever the kernel crashes. Set this to 256MB. */
#define PHYP_DUMP_RMR_START 0x0
#define PHYP_DUMP_RMR_END (1UL<<28)
struct phyp_dump {
/* Memory that is reserved during very early boot. */
unsigned long init_reserve_start;
unsigned long init_reserve_size;
/* Check status during boot if dump supported, active & present*/
unsigned long phyp_dump_at_boot;
unsigned long phyp_dump_configured;
unsigned long phyp_dump_is_active;
/* store cpu & hpte size */
unsigned long cpu_state_size;
unsigned long hpte_region_size;
/* previous scratch area values */
unsigned long reserved_scratch_addr;
unsigned long reserved_scratch_size;
};
extern struct phyp_dump *phyp_dump_info;
int early_init_dt_scan_phyp_dump(unsigned long node,
const char *uname, int depth, void *data);
#endif /* CONFIG_PHYP_DUMP */
#endif /* _PPC64_PHYP_DUMP_H */
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