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powerpc/kexec_file: Avoid stomping memory used by special regions
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
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Hari Bathini
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Michael Ellerman
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Jul 29, 2020
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