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arm64: ptdump: Indicate whether memory should be faulting

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With CONFIG_DEBUG_PAGEALLOC, pages do not have the valid bit
set when free in the buddy allocator. Add an indiciation to
the page table dumping code that the valid bit is not set,
'F' for fault, to make this easier to understand.

Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Laura Abbott <labbott@fedoraproject.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Laura Abbott 2016-02-05 16:24:48 -08:00 committed by Catalin Marinas
parent 83863f25e4
commit d7e9d59494
1 changed files with 5 additions and 0 deletions
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5
arch/arm64/mm/dump.c
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@ -90,6 +90,11 @@ struct prot_bits {
static const struct prot_bits pte_bits[] = { static const struct prot_bits pte_bits[] = {
{ {
.mask = PTE_VALID,
.val = PTE_VALID,
.set = " ",
.clear = "F",
}, {
.mask = PTE_USER, .mask = PTE_USER,
.val = PTE_USER, .val = PTE_USER,
.set = "USR", .set = "USR",