| /* |
| * 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; |
| /* cmd line options during boot */ |
| unsigned long reserve_bootvar; |
| unsigned long phyp_dump_at_boot; |
| /* Check status during boot if dump supported, active & present*/ |
| 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 */ |
