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b8e55a3e5c
crashkernel region could have an overlap with special memory regions like OPAL, RTAS, TCE table & such. These regions are referred to as excluded memory ranges. Setup these ranges during image probe in order to avoid them while finding the buffer for different kdump segments. Override arch_kexec_locate_mem_hole() to locate a memory hole taking these ranges into account. Signed-off-by: Hari Bathini <hbathini@linux.ibm.com> Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/159602281047.575379.6636807148335160795.stgit@hbathini
25 lines
943 B
C
25 lines
943 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef _ASM_POWERPC_KEXEC_RANGES_H
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#define _ASM_POWERPC_KEXEC_RANGES_H
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#define MEM_RANGE_CHUNK_SZ 2048 /* Memory ranges size chunk */
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void sort_memory_ranges(struct crash_mem *mrngs, bool merge);
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struct crash_mem *realloc_mem_ranges(struct crash_mem **mem_ranges);
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int add_mem_range(struct crash_mem **mem_ranges, u64 base, u64 size);
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int add_tce_mem_ranges(struct crash_mem **mem_ranges);
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int add_initrd_mem_range(struct crash_mem **mem_ranges);
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#ifdef CONFIG_PPC_BOOK3S_64
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int add_htab_mem_range(struct crash_mem **mem_ranges);
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#else
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static inline int add_htab_mem_range(struct crash_mem **mem_ranges)
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{
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return 0;
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}
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#endif
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int add_kernel_mem_range(struct crash_mem **mem_ranges);
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int add_rtas_mem_range(struct crash_mem **mem_ranges);
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int add_opal_mem_range(struct crash_mem **mem_ranges);
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int add_reserved_mem_ranges(struct crash_mem **mem_ranges);
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#endif /* _ASM_POWERPC_KEXEC_RANGES_H */
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