linux-kernel - [PATCH 00/10] Enhance /dev/mem to allow read/write of arbitrary physical addresses

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Date:	Fri, 17 Jun 2011 10:38:25 +0200
From:	Petr Tesarik <ptesarik@...e.cz>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	Fenghua Yu <fenghua.yu@...el.com>,
	"H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...hat.com>,
	Paul Mundt <lethal@...ux-sh.org>,
	Russell King <linux@....linux.org.uk>,
	Thomas Gleixner <tglx@...utronix.de>,
	Tony Luck <tony.luck@...el.com>, x86@...nel.org,
	linux-arm-kernel@...ts.infradead.org, linux-ia64@...r.kernel.org,
	linux-sh@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH 00/10] Enhance /dev/mem to allow read/write of arbitrary physical addresses

This patch series enhances /dev/mem, so that read and write is possible
at any address. The patchset includes actual implementation for x86.

Petr Tesarik (10):
  Return EOF on out-of-bounds read from /dev/mem
  (un)xlate_dev_mem_ptr: use phys_addr_t for the @phys parameter
  x86: translate highmem /dev/mem pointers
  ia64: change xlate_dev_mem_ptr's argument to phys_addr_t
  valid_phys_addr_range: use phys_addr_t for the @addr parameter
  sh: change valid_phys_addr_range's @addr param to phys_addr_t
  arm: change valid_phys_addr_range's @addr param to phys_addr_t
  ia64: change valid_phys_addr_range's @addr param to phys_addr_t
  x86: provide arch-specific valid_phys_addr_range()
  Allow reading/writing all memory through /dev/mem

 arch/arm/include/asm/io.h       |    2 +-
 arch/arm/mm/mmap.c              |    2 +-
 arch/ia64/include/asm/io.h      |    2 +-
 arch/ia64/include/asm/uaccess.h |    2 +-
 arch/ia64/kernel/efi.c          |    2 +-
 arch/sh/include/asm/io.h        |    2 +-
 arch/sh/mm/mmap.c               |    2 +-
 arch/x86/include/asm/io.h       |   15 +++++++++++++--
 arch/x86/mm/ioremap.c           |   24 ++++++++++++++++++------
 drivers/char/mem.c              |   14 ++++++++++----
 10 files changed, 48 insertions(+), 19 deletions(-)

-- 
1.7.3.4

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