Commit 7d7b88ff authored by Lecopzer Chen's avatar Lecopzer Chen Committed by Catalin Marinas
Browse files

arm64: kasan: abstract _text and _end to KERNEL_START/END 



Arm64 provides defined macro for KERNEL_START and KERNEL_END,
thus replace them by the abstration instead of using _text and _end.

Signed-off-by: default avatarLecopzer Chen <lecopzer.chen@mediatek.com>
Acked-by: default avatarAndrey Konovalov <andreyknvl@gmail.com>
Tested-by: default avatarAndrey Konovalov <andreyknvl@gmail.com>
Tested-by: default avatarArd Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20210324040522.15548-3-lecopzer.chen@mediatek.com


Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
parent 9a0732ef

arch/arm64/mm/kasan_init.c

+3 −3
Original line number Diff line number Diff line
@@ -218,8 +218,8 @@ static void __init kasan_init_shadow(void) 
	phys_addr_t pa_start, pa_end;

	u64 i;



	kimg_shadow_start = (u64)kasan_mem_to_shadow(_text) & PAGE_MASK;

	kimg_shadow_end = PAGE_ALIGN((u64)kasan_mem_to_shadow(_end));

	kimg_shadow_start = (u64)kasan_mem_to_shadow(KERNEL_START) & PAGE_MASK;

	kimg_shadow_end = PAGE_ALIGN((u64)kasan_mem_to_shadow(KERNEL_END));



	mod_shadow_start = (u64)kasan_mem_to_shadow((void *)MODULES_VADDR);

	mod_shadow_end = (u64)kasan_mem_to_shadow((void *)MODULES_END);
@@ -240,7 +240,7 @@ static void __init kasan_init_shadow(void) 
	clear_pgds(KASAN_SHADOW_START, KASAN_SHADOW_END);



	kasan_map_populate(kimg_shadow_start, kimg_shadow_end,

			   early_pfn_to_nid(virt_to_pfn(lm_alias(_text))));

			   early_pfn_to_nid(virt_to_pfn(lm_alias(KERNEL_START))));



	kasan_populate_early_shadow(kasan_mem_to_shadow((void *)PAGE_END),

				   (void *)mod_shadow_start);