2 * Hypervisor-assisted dump
4 * Linas Vepstas, Manish Ahuja 2008
5 * Copyright 2008 IBM Corp.
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version
10 * 2 of the License, or (at your option) any later version.
13 #ifndef _PPC64_PHYP_DUMP_H
14 #define _PPC64_PHYP_DUMP_H
16 #ifdef CONFIG_PHYP_DUMP
18 /* The RMR region will be saved for later dumping
19 * whenever the kernel crashes. Set this to 256MB. */
20 #define PHYP_DUMP_RMR_START 0x0
21 #define PHYP_DUMP_RMR_END (1UL<<28)
24 /* Memory that is reserved during very early boot. */
25 unsigned long init_reserve_start;
26 unsigned long init_reserve_size;
27 /* cmd line options during boot */
28 unsigned long reserve_bootvar;
29 unsigned long phyp_dump_at_boot;
30 /* Check status during boot if dump supported, active & present*/
31 unsigned long phyp_dump_configured;
32 unsigned long phyp_dump_is_active;
33 /* store cpu & hpte size */
34 unsigned long cpu_state_size;
35 unsigned long hpte_region_size;
36 /* previous scratch area values */
37 unsigned long reserved_scratch_addr;
38 unsigned long reserved_scratch_size;
41 extern struct phyp_dump *phyp_dump_info;
43 int early_init_dt_scan_phyp_dump(unsigned long node,
44 const char *uname, int depth, void *data);
46 #endif /* CONFIG_PHYP_DUMP */
47 #endif /* _PPC64_PHYP_DUMP_H */