linux-kernel - [PATCH v2 5/7] ARM: mm: Print physical address of page table base in show

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20210602070246.83990-6-wangkefeng.wang@huawei.com>
Date:   Wed, 2 Jun 2021 15:02:44 +0800
From:   Kefeng Wang <wangkefeng.wang@...wei.com>
To:     Russell King <linux@...linux.org.uk>,
        <linux-arm-kernel@...ts.infradead.org>
CC:     Catalin Marinas <catalin.marinas@....com>,
        <linux-kernel@...r.kernel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Jungseung Lee <js07.lee@...il.com>,
        Kefeng Wang <wangkefeng.wang@...wei.com>
Subject: [PATCH v2 5/7] ARM: mm: Print physical address of page table base in show_pte()

Now the show_pts() will dump the virtual (hashed) address of page
table base, it is useless, let's print the page table base pointer
as a physical address for debug.

Signed-off-by: Kefeng Wang <wangkefeng.wang@...wei.com>
---
 arch/arm/mm/fault.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index 71a5c29488c2..1383d465399b 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -45,7 +45,7 @@ void show_pte(const char *lvl, unsigned long addr)
 		mm = &init_mm;
 	}
 
-	printk("%spgd = %p\n", lvl, mm->pgd);
+	printk("%spgd = %08lx\n", lvl, (unsigned long)virt_to_phys(mm->pgd));
 	pgd = pgd_offset(mm, addr);
 	printk("%s[%08lx] *pgd=%08llx", lvl, addr, (long long)pgd_val(*pgd));
 
-- 
2.26.2