From: ard.biesheuvel@linaro.org (Ard Biesheuvel)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC PATCH 09/10] arm64: insn: avoid __pa translations
Date: Mon, 22 Feb 2016 21:54:31 +0100 [thread overview]
Message-ID: <1456174472-30028-10-git-send-email-ard.biesheuvel@linaro.org> (raw)
In-Reply-To: <1456174472-30028-1-git-send-email-ard.biesheuvel@linaro.org>
When taking the physical address of something that is known to be
covered by the kernel text, use __kimg_to_phys() not virt_to_phys()
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
arch/arm64/kernel/insn.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/kernel/insn.c b/arch/arm64/kernel/insn.c
index 7371455160e5..bc91e3c2cdb1 100644
--- a/arch/arm64/kernel/insn.c
+++ b/arch/arm64/kernel/insn.c
@@ -96,7 +96,7 @@ static void __kprobes *patch_map(void *addr, int fixmap)
if (module && IS_ENABLED(CONFIG_DEBUG_SET_MODULE_RONX))
page = vmalloc_to_page(addr);
else if (!module && IS_ENABLED(CONFIG_DEBUG_RODATA))
- page = virt_to_page(addr);
+ page = phys_to_page(__kimg_to_phys(addr));
else
return addr;
--
2.5.0
next prev parent reply other threads:[~2016-02-22 20:54 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-22 20:54 [RFC PATCH 00/10] arm64: restrict __pa translation to linear virtual addresses Ard Biesheuvel
2016-02-22 20:54 ` [RFC PATCH 01/10] arm64: mm: move assignment of 'high_memory' before its first use Ard Biesheuvel
2016-02-23 12:14 ` Catalin Marinas
2016-02-23 12:18 ` Ard Biesheuvel
2016-02-22 20:54 ` [RFC PATCH 02/10] arm64: introduce __kimg_to_phys() and __pa_symbol() Ard Biesheuvel
2016-02-22 20:54 ` [RFC PATCH 03/10] arm64: mm: avoid __pa translations in cpu_replace_ttbr1 Ard Biesheuvel
2016-02-22 20:54 ` [RFC PATCH 04/10] arm64: mm: avoid __pa translations on empty_zero_page Ard Biesheuvel
2016-02-22 20:54 ` [RFC PATCH 05/10] arm64: mm: avoid __pa translations in early_fixmap_init Ard Biesheuvel
2016-02-23 17:12 ` Catalin Marinas
2016-02-23 17:16 ` Ard Biesheuvel
2016-02-23 17:26 ` Catalin Marinas
2016-02-23 17:27 ` Ard Biesheuvel
2016-02-23 17:32 ` Catalin Marinas
2016-02-23 17:43 ` Ard Biesheuvel
2016-02-23 18:10 ` Catalin Marinas
2016-02-22 20:54 ` [RFC PATCH 06/10] arm64: mm: use __pa_symbol() not __pa() for section boundary symbols Ard Biesheuvel
2016-02-22 20:54 ` [RFC PATCH 07/10] arm64: mm: avoid __pa translations for idmap_pg_dir and swapper_pg_dir Ard Biesheuvel
2016-02-22 20:54 ` [RFC PATCH 08/10] arm64: vdso: avoid __pa translations Ard Biesheuvel
2016-02-22 20:54 ` Ard Biesheuvel [this message]
2016-02-22 20:54 ` [RFC PATCH 10/10] arm64: mm: restrict __pa() translations to linear virtual addresses Ard Biesheuvel
2016-02-23 12:26 ` Will Deacon
2016-02-23 12:29 ` Ard Biesheuvel
2016-02-23 12:31 ` Will Deacon
2016-02-23 17:22 ` Catalin Marinas
2016-02-23 10:03 ` [RFC PATCH 00/10] arm64: restrict __pa translation " Ard Biesheuvel
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