arm64: Print physical address of page table base in show_pte() (48caebf7) · Commits · 戴 / test

When dumping the page table in response to an unexpected kernel page fault, we print the virtual (hashed) address of the page table base, but display physical addresses for everything else. Make the page table dumping code in show_pte() consistent, by printing the page table base pointer as a physical address. Reported-by:

Mark Rutland <mark.rutland@arm.com> Signed-off-by:

Will Deacon <will.deacon@arm.com>

arch/arm64/mm/fault.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -171,9 +171,10 @@ static void show_pte(unsigned long addr)
		return;
		}

		pr_alert("%s pgtable: %luk pages, %u-bit VAs, pgdp = %p\n",
		pr_alert("%s pgtable: %luk pages, %u-bit VAs, pgdp=%016lx\n",
		mm == &init_mm ? "swapper" : "user", PAGE_SIZE / SZ_1K,
		mm == &init_mm ? VA_BITS : (int) vabits_user, mm->pgd);
		mm == &init_mm ? VA_BITS : (int)vabits_user,
		(unsigned long)virt_to_phys(mm->pgd));
		pgdp = pgd_offset(mm, addr);
		pgd = READ_ONCE(*pgdp);
		pr_alert("[%016lx] pgd=%016llx", addr, pgd_val(pgd));

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