target/linux/layerscape/patches-5.4/303-core-0009-arm64-move-elfcorehdr-reservation-early-for-crash-du.patch

   1 From 67349176ca23f7525dee79665a880cde5aeeaf26 Mon Sep 17 00:00:00 2001
   2 From: Nikhil Gupta <nikhil.gupta@nxp.com>
   3 Date: Mon, 30 Dec 2019 15:11:23 +0530
   4 Subject: [PATCH] arm64:move elfcorehdr reservation early for crash dump kernel
   5
   6 on some SOCs, elfcorehdr address may overlap with the address of reserved
   7 memory allocated using early_init_fdt_scan_reserved_mem
   8
   9 Signed-off-by: Nikhil Gupta <nikhil.gupta@nxp.com>
  10 Signed-off-by: Poonam Aggrwal <poonam.aggrwal@nxp.com>
  11 ---
  12  arch/arm64/mm/init.c | 4 ++--
  13  1 file changed, 2 insertions(+), 2 deletions(-)
  14
  15 --- a/arch/arm64/mm/init.c
  16 +++ b/arch/arm64/mm/init.c
  17 @@ -418,6 +418,8 @@ void __init arm64_memblock_init(void)
  18                 initrd_end = initrd_start + phys_initrd_size;
  19         }
  20
  21 +       reserve_elfcorehdr();
  22 +
  23         early_init_fdt_scan_reserved_mem();
  24
  25         /* 4GB maximum for 32-bit only capable devices */
  26 @@ -428,8 +430,6 @@ void __init arm64_memblock_init(void)
  27
  28         reserve_crashkernel();
  29
  30 -       reserve_elfcorehdr();
  31 -
  32         high_memory = __va(memblock_end_of_DRAM() - 1) + 1;
  33
  34         dma_contiguous_reserve(arm64_dma_phys_limit);