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Message-Id: <1440609031-14695-1-git-send-email-izumi.taku@jp.fujitsu.com>
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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