a9c508dae1
This adds routines to a. invalidate dump b. calculate region that is reserved and needs to be freed. This is exported through sysfs interface. Unregister has been removed for now as it wasn't being used. Signed-off-by: Manish Ahuja <mahuja@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/*
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* Hypervisor-assisted dump
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*
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* Linas Vepstas, Manish Ahuja 2008
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* Copyright 2008 IBM Corp.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef _PPC64_PHYP_DUMP_H
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#define _PPC64_PHYP_DUMP_H
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#ifdef CONFIG_PHYP_DUMP
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/* The RMR region will be saved for later dumping
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* whenever the kernel crashes. Set this to 256MB. */
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#define PHYP_DUMP_RMR_START 0x0
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#define PHYP_DUMP_RMR_END (1UL<<28)
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struct phyp_dump {
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/* Memory that is reserved during very early boot. */
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unsigned long init_reserve_start;
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unsigned long init_reserve_size;
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/* Check status during boot if dump supported, active & present*/
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unsigned long phyp_dump_configured;
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unsigned long phyp_dump_is_active;
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/* store cpu & hpte size */
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unsigned long cpu_state_size;
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unsigned long hpte_region_size;
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/* previous scratch area values */
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unsigned long reserved_scratch_addr;
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unsigned long reserved_scratch_size;
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};
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extern struct phyp_dump *phyp_dump_info;
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int early_init_dt_scan_phyp_dump(unsigned long node,
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const char *uname, int depth, void *data);
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#endif /* CONFIG_PHYP_DUMP */
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#endif /* _PPC64_PHYP_DUMP_H */
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