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Commit 7852158a authored by Linux Build Service Account's avatar Linux Build Service Account Committed by Gerrit - the friendly Code Review server
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Merge "lrdp-v2: slab: kernel 4.9 based change to calculate VMEMMAP_SIZE"

parents c39edd6e 9f77d735
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# Copyright (c) 2013-2016, The Linux Foundation. All rights reserved.
# Copyright (c) 2013-2017, The Linux Foundation. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 and
......@@ -135,6 +135,7 @@ def get_vmemmap(ramdump):
# See: include/asm-generic/pgtable-nopud.h,
# arch/arm64/include/asm/pgtable-hwdef.h,
# arch/arm64/include/asm/pgtable.h
# kernel/arch/arm64/include/asm/memory.h
if (ramdump.kernel_version < (3, 18, 0)):
nlevels = int(ramdump.get_config_val("CONFIG_ARM64_PGTABLE_LEVELS"))
else:
......@@ -151,15 +152,21 @@ def get_vmemmap(ramdump):
spsize = ramdump.sizeof('struct page')
vmemmap_size = bitops.align((1 << (va_bits - page_shift)) * spsize,
pud_size)
pfn_offset = (ramdump.phys_offset >> page_shift)
offset = pfn_offset * spsize
if (ramdump.kernel_version < (3, 18, 31)):
vmalloc_end = ramdump.page_offset - pud_size - vmemmap_size
# vmalloc_end = 0xFFFFFFBC00000000
else:
elif (ramdump.kernel_version < (4, 9, 0)):
# for version >= 3.18.31,
# vmemmap is shifted to base addr (0x80000000) pfn.
pfn_offset = (ramdump.phys_offset >> page_shift)
offset = pfn_offset * spsize
vmalloc_end = ramdump.page_offset - pud_size - vmemmap_size - offset
else:
# for version >= 4.9.0,
struct_page_max_shift = 6
#vmemmap_size = ( 1 << (39 - 12 - 1 + 6))
vmemmap_size = ( 1 << (va_bits - page_shift - 1 + struct_page_max_shift))
vmalloc_end = ramdump.page_offset - vmemmap_size - offset
return vmalloc_end
......
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