diff options
| author | Kees Cook <keescook@chromium.org> | 2014-02-14 20:19:03 +0100 |
|---|---|---|
| committer | Krishna Reddy <vdumpa@nvidia.com> | 2014-04-03 08:51:16 -0700 |
| commit | 202377c98ab253fde2fa6b93add61ab73318bdfb (patch) | |
| tree | db080daf03b15f655e5bcce844b32c8c62781fb6 /arch/arm/mm | |
| parent | e5d233a481d15e9778aaddc715803b32b4dfd014 (diff) | |
ARM: 7963/1: mm: report both sections from PMD
On 2-level page table systems, the PMD has 2 section entries. Report
these, otherwise ARM_PTDUMP will miss reporting permission changes on
odd section boundaries.
Change-Id: I76d40f4b6451abdcdc5e0a4f5e341ec5be2898e1
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Steve Capper <steve.capper@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com>
Reviewed-on: http://git-master/r/391334
Reviewed-by: Krishna Reddy <vdumpa@nvidia.com>
Diffstat (limited to 'arch/arm/mm')
| -rw-r--r-- | arch/arm/mm/dump.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/mm/dump.c b/arch/arm/mm/dump.c index 2b3a56414271..ef69152f9b52 100644 --- a/arch/arm/mm/dump.c +++ b/arch/arm/mm/dump.c @@ -264,6 +264,9 @@ static void walk_pmd(struct pg_state *st, pud_t *pud, unsigned long start) note_page(st, addr, 3, pmd_val(*pmd)); else walk_pte(st, pmd, addr); + + if (SECTION_SIZE < PMD_SIZE && pmd_large(pmd[1])) + note_page(st, addr + SECTION_SIZE, 3, pmd_val(pmd[1])); } } |