From: Ma Wupeng <mawupeng1@xxxxxxxxxx> Commit b05b9f5f9dcf ("x86, mirror: x86 enabling - find mirrored memory ranges") introduced mirrored memory support for x86. This support rely on UEFI to report mirrored memory address ranges. See UEFI 2.5 spec pages 157-158: http://www.uefi.org/sites/default/files/resources/UEFI%202_5.pdf Arm64 can support this too. So mirrored memory support is added to support arm64. Patch #1-#2 introduce efi_fake_mem support for arm64. Patch #3-#4 introduce mirrored memory support form arm64. Patch #5-#7 fix some bugs for arm64 if memory reliable is enabled. Patch #8 disable mirror feature if kernelcore is not specified. Patch #9 remove some redundant code in ia64 efi_init. Ma Wupeng (9): efi: Make efi_print_memmap() public arm64: efi: Add fake memory support efi: Make efi_find_mirror() public arm64/mirror: arm64 enabling - find mirrored memory ranges mm: Ratelimited mirrored memory related warning messages mm: Demote warning message in vmemmap_verify() to debug level mm: Calc the right pfn if page size is not 4K efi: Disable mirror feature if kernelcore is not specified ia64/efi: Code simplification in efi_init .../admin-guide/kernel-parameters.txt | 4 +- arch/arm64/kernel/setup.c | 3 ++ arch/ia64/kernel/efi.c | 37 +----------------- arch/x86/include/asm/efi.h | 5 --- arch/x86/platform/efi/efi.c | 39 ------------------- drivers/firmware/efi/Kconfig | 2 +- drivers/firmware/efi/efi.c | 26 +++++++++++++ drivers/firmware/efi/memmap.c | 16 ++++++++ include/linux/efi.h | 4 ++ include/linux/mm.h | 2 + mm/memblock.c | 4 +- mm/page_alloc.c | 4 +- mm/sparse-vmemmap.c | 2 +- 13 files changed, 60 insertions(+), 88 deletions(-) -- 2.18.0.huawei.25