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arm64: Print physical address of page table base in show_pte()

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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>
This commit is contained in:
Will Deacon 2019-05-14 12:25:28 +01:00
parent 84c187afa2
commit 48caebf7e1
1 changed files with 3 additions and 2 deletions
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5
arch/arm64/mm/fault.c
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@ -171,9 +171,10 @@ static void show_pte(unsigned long addr)
return; 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 ? "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); pgdp = pgd_offset(mm, addr);
pgd = READ_ONCE(*pgdp); pgd = READ_ONCE(*pgdp);
pr_alert("[%016lx] pgd=%016llx", addr, pgd_val(pgd)); pr_alert("[%016lx] pgd=%016llx", addr, pgd_val(pgd));