From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg0-f71.google.com (mail-pg0-f71.google.com [74.125.83.71]) by kanga.kvack.org (Postfix) with ESMTP id 79DD06B0497 for ; Sun, 16 Jul 2017 19:00:03 -0400 (EDT) Received: by mail-pg0-f71.google.com with SMTP id d193so92569876pgc.0 for ; Sun, 16 Jul 2017 16:00:03 -0700 (PDT) Received: from mga03.intel.com (mga03.intel.com. [134.134.136.65]) by mx.google.com with ESMTPS id d90si10055102pld.635.2017.07.16.16.00.02 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 16 Jul 2017 16:00:02 -0700 (PDT) From: "Kirill A. Shutemov" Subject: [PATCH 2/8] x86/dump_pagetables: Fix printout of p4d level Date: Mon, 17 Jul 2017 01:59:48 +0300 Message-Id: <20170716225954.74185-3-kirill.shutemov@linux.intel.com> In-Reply-To: <20170716225954.74185-1-kirill.shutemov@linux.intel.com> References: <20170716225954.74185-1-kirill.shutemov@linux.intel.com> Sender: owner-linux-mm@kvack.org List-ID: To: Linus Torvalds , Andrew Morton , x86@kernel.org, Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" Cc: Andi Kleen , Dave Hansen , Andy Lutomirski , linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, "Kirill A. Shutemov" Modify printk_prot() and callers to print out additional page table level correctly. Signed-off-by: Kirill A. Shutemov --- 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 a824d575bb84..b371ab68f2d4 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++; -- 2.11.0 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org