Messages in this thread Patch in this message | | | From | Miles Chen <> | Subject | [PATCH] arm64: correct modules range of kernel virtual memory layout | Date | Mon, 7 Aug 2017 19:04:46 +0800 |
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The commit f80fb3a3d508 ("arm64: add support for kernel ASLR") moved module virtual address to [module_alloc_base, module_alloc_base + MODULES_VSIZE).
Display module information of the virtual kernel memory layout by using module_alloc_base.
testing output: 1) Current implementation: Virtual kernel memory layout: modules : 0xffffff8000000000 - 0xffffff8008000000 ( 128 MB) 2) this patch + KASLR: Virtual kernel memory layout: modules : 0xffffff8000560000 - 0xffffff8008560000 ( 128 MB) 3) this patch + KASLR and a dummy seed: Virtual kernel memory layout: modules : 0xffffffa7df637000 - 0xffffffa7e7637000 ( 128 MB)
Signed-off-by: Miles Chen <miles.chen@mediatek.com> --- arch/arm64/mm/init.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index 5960bef..57a11d5 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -52,6 +52,7 @@ #include <asm/sizes.h> #include <asm/tlb.h> #include <asm/alternative.h> +#include <asm/module.h> /* * We need to be able to catch inadvertent references to memstart_addr @@ -609,8 +610,8 @@ void __init mem_init(void) pr_notice(" kasan : 0x%16lx - 0x%16lx (%6ld GB)\n", MLG(KASAN_SHADOW_START, KASAN_SHADOW_END)); #endif - pr_notice(" modules : 0x%16lx - 0x%16lx (%6ld MB)\n", - MLM(MODULES_VADDR, MODULES_END)); + pr_notice(" modules : 0x%16llx - 0x%16llx (%6lld MB)\n", + MLM(module_alloc_base, module_alloc_base + MODULES_VSIZE)); pr_notice(" vmalloc : 0x%16lx - 0x%16lx (%6ld GB)\n", MLG(VMALLOC_START, VMALLOC_END)); pr_notice(" .text : 0x%p" " - 0x%p" " (%6ld KB)\n", -- 1.9.1
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