Messages in this thread | | | From | Taku Izumi <> | Subject | [PATCH v2 0/3] Introduce "efi_fake_mem_mirror" boot option | Date | Thu, 27 Aug 2015 02:10:31 +0900 |
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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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