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authorMark Rutland <mark.rutland@arm.com>2019-08-14 15:28:47 +0200
committerWill Deacon <will@kernel.org>2019-08-14 18:05:11 +0200
commit233947ef16a18952d22786770dab1ddafa1ac377 (patch)
tree5e2f60d645f057615a89e8bf9d236a543bc3d1ae /arch/arm64/mm/dump.c
parentarm64: memory: Cosmetic cleanups (diff)
downloadlinux-233947ef16a18952d22786770dab1ddafa1ac377.tar.xz
linux-233947ef16a18952d22786770dab1ddafa1ac377.zip
arm64: memory: fix flipped VA space fallout
VA_START used to be the start of the TTBR1 address space, but now it's a point midway though. In a couple of places we still use VA_START to get the start of the TTBR1 address space, so let's fix these up to use PAGE_OFFSET instead. Fixes: 14c127c957c1c607 ("arm64: mm: Flip kernel VA space") Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Tested-by: Steve Capper <steve.capper@arm.com> Reviewed-by: Steve Capper <steve.capper@arm.com> Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/mm/dump.c')
-rw-r--r--arch/arm64/mm/dump.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/mm/dump.c b/arch/arm64/mm/dump.c
index 6ec75305828e..8e10b4ba215a 100644
--- a/arch/arm64/mm/dump.c
+++ b/arch/arm64/mm/dump.c
@@ -400,7 +400,7 @@ void ptdump_check_wx(void)
.check_wx = true,
};
- walk_pgd(&st, &init_mm, VA_START);
+ walk_pgd(&st, &init_mm, PAGE_OFFSET);
note_page(&st, 0, 0, 0);
if (st.wx_pages || st.uxn_pages)
pr_warn("Checked W+X mappings: FAILED, %lu W+X pages found, %lu non-UXN pages found\n",