Commit-ID: 45dcd20913632fe69641c24b16d89e13e0e107ff Gitweb: http://git.kernel.org/tip/45dcd20913632fe69641c24b16d89e13e0e107ff Author: Kirill A. Shutemov <kirill.shute...@linux.intel.com> AuthorDate: Mon, 17 Jul 2017 01:59:48 +0300 Committer: Ingo Molnar <mi...@kernel.org> CommitDate: Fri, 21 Jul 2017 10:05:17 +0200
x86/mm/dump_pagetables: Fix printout of p4d level Modify printk_prot() and callers to print out additional page table level correctly. Signed-off-by: Kirill A. Shutemov <kirill.shute...@linux.intel.com> Cc: Andrew Morton <a...@linux-foundation.org> Cc: Andy Lutomirski <l...@amacapital.net> Cc: Dave Hansen <dave.han...@intel.com> Cc: Linus Torvalds <torva...@linux-foundation.org> Cc: Peter Zijlstra <pet...@infradead.org> Cc: Thomas Gleixner <t...@linutronix.de> Cc: linux-a...@vger.kernel.org Cc: linux...@kvack.org Link: http://lkml.kernel.org/r/20170716225954.74185-3-kirill.shute...@linux.intel.com Signed-off-by: Ingo Molnar <mi...@kernel.org> --- arch/x86/mm/dump_pagetables.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/arch/x86/mm/dump_pagetables.c b/arch/x86/mm/dump_pagetables.c index a824d57..b371ab6 100644 --- a/arch/x86/mm/dump_pagetables.c +++ b/arch/x86/mm/dump_pagetables.c @@ -138,7 +138,7 @@ static void printk_prot(struct seq_file *m, pgprot_t prot, int level, bool dmsg) { pgprotval_t pr = pgprot_val(prot); static const char * const level_name[] = - { "cr3", "pgd", "pud", "pmd", "pte" }; + { "cr3", "pgd", "p4d", "pud", "pmd", "pte" }; if (!pgprot_val(prot)) { /* Not present */ @@ -162,12 +162,12 @@ static void printk_prot(struct seq_file *m, pgprot_t prot, int level, bool dmsg) pt_dump_cont_printf(m, dmsg, " "); /* Bit 7 has a different meaning on level 3 vs 4 */ - if (level <= 3 && pr & _PAGE_PSE) + if (level <= 4 && pr & _PAGE_PSE) pt_dump_cont_printf(m, dmsg, "PSE "); else pt_dump_cont_printf(m, dmsg, " "); - if ((level == 4 && pr & _PAGE_PAT) || - ((level == 3 || level == 2) && pr & _PAGE_PAT_LARGE)) + if ((level == 5 && pr & _PAGE_PAT) || + ((level == 4 || level == 3) && pr & _PAGE_PAT_LARGE)) pt_dump_cont_printf(m, dmsg, "PAT "); else pt_dump_cont_printf(m, dmsg, " "); @@ -298,7 +298,7 @@ static void walk_pte_level(struct seq_file *m, struct pg_state *st, pmd_t addr, for (i = 0; i < PTRS_PER_PTE; i++) { prot = pte_flags(*start); st->current_address = normalize_addr(P + i * PTE_LEVEL_MULT); - note_page(m, st, __pgprot(prot), 4); + note_page(m, st, __pgprot(prot), 5); start++; } } @@ -317,13 +317,13 @@ static void walk_pmd_level(struct seq_file *m, struct pg_state *st, pud_t addr, if (!pmd_none(*start)) { if (pmd_large(*start) || !pmd_present(*start)) { prot = pmd_flags(*start); - note_page(m, st, __pgprot(prot), 3); + note_page(m, st, __pgprot(prot), 4); } else { walk_pte_level(m, st, *start, P + i * PMD_LEVEL_MULT); } } else - note_page(m, st, __pgprot(0), 3); + note_page(m, st, __pgprot(0), 4); start++; } } @@ -362,13 +362,13 @@ static void walk_pud_level(struct seq_file *m, struct pg_state *st, p4d_t addr, !pud_already_checked(prev_pud, start, st->check_wx)) { if (pud_large(*start) || !pud_present(*start)) { prot = pud_flags(*start); - note_page(m, st, __pgprot(prot), 2); + note_page(m, st, __pgprot(prot), 3); } else { walk_pmd_level(m, st, *start, P + i * PUD_LEVEL_MULT); } } else - note_page(m, st, __pgprot(0), 2); + note_page(m, st, __pgprot(0), 3); prev_pud = start; start++;
