linux-kernel - [PATCH v2 0/3] Introduce "efi_fake_mem

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Date:	Thu, 27 Aug 2015 02:10:31 +0900
From:	Taku Izumi <izumi.taku@...fujitsu.com>
To:	linux-kernel@...r.kernel.org, linux-efi@...r.kernel.org,
	x86@...nel.org, matt.fleming@...el.com, tglx@...utronix.de,
	mingo@...hat.com, hpa@...or.com
Cc:	tony.luck@...el.com, qiuxishi@...wei.com,
	kamezawa.hiroyu@...fujitsu.com, ard.biesheuvel@...aro.org,
	linux-mm@...ck.org, Taku Izumi <izumi.taku@...fujitsu.com>
Subject: [PATCH v2 0/3] Introduce "efi_fake_mem_mirror" boot option

UEFI spec 2.5 introduces new Memory Attribute Definition named
EFI_MEMORY_MORE_RELIABLE which indicates which memory ranges are
mirrored. Now linux kernel can recognize which memory ranges are mirrored
by handling EFI_MEMORY_MORE_RELIABLE attributes.
However testing this feature necesitates boxes with UEFI spec 2.5 complied
firmware.

This patchset introduces new boot option named "efi_fake_mem_mirror".
By specifying this parameter, you can mark specific memory as
mirrored memory. This is useful for debugging of Memory Address Range
Mirroring feature.

v1 -> v2:
 - change abbreviation of EFI_MEMORY_MORE_RELIABLE from "RELY" to "MR"
 - add patch (2/3) for changing abbreviation of EFI_MEMORY_RUNTIME
 - migrate some code from arch/x86/platform/efi/quirks to
   drivers/firmware/efi/fake_mem.c and create config EFI_FAKE_MEMMAP

Taku Izumi (3):
  efi: Add EFI_MEMORY_MORE_RELIABLE support to efi_md_typeattr_format()
  efi: Change abbreviation of EFI_MEMORY_RUNTIME from "RUN" to "RT"
  x86, efi: Add "efi_fake_mem_mirror" boot option

 Documentation/kernel-parameters.txt |   8 ++
 arch/x86/include/asm/efi.h          |   1 +
 arch/x86/kernel/setup.c             |   4 +-
 arch/x86/platform/efi/efi.c         |   2 +-
 drivers/firmware/efi/Kconfig        |  12 +++
 drivers/firmware/efi/Makefile       |   1 +
 drivers/firmware/efi/efi.c          |   8 +-
 drivers/firmware/efi/fake_mem.c     | 204 ++++++++++++++++++++++++++++++++++++
 include/linux/efi.h                 |   6 ++
 9 files changed, 241 insertions(+), 5 deletions(-)
 create mode 100644 drivers/firmware/efi/fake_mem.c

-- 
1.8.3.1

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