efi: Add "efi_fake_mem" boot option

[deliverable/linux.git] / drivers / firmware / efi / Kconfig

diff --git a/drivers/firmware/efi/Kconfig b/drivers/firmware/efi/Kconfig
index 54071c1483400d41e214c0f83512ca1f4600814a..1de6f0ed50779a2e2b4de626636086e04fadd831 100644 (file)
--- a/drivers/firmware/efi/Kconfig
+++ b/drivers/firmware/efi/Kconfig
@@ -52,6 +52,28 @@ config EFI_RUNTIME_MAP
 
          See also Documentation/ABI/testing/sysfs-firmware-efi-runtime-map.
 
+config EFI_FAKE_MEMMAP
+       bool "Enable EFI fake memory map"
+       depends on EFI && X86
+       default n
+       help
+         Saying Y here will enable "efi_fake_mem" boot option.
+         By specifying this parameter, you can add arbitrary attribute
+         to specific memory range by updating original (firmware provided)
+         EFI memmap.
+         This is useful for debugging of EFI memmap related feature.
+         e.g. Address Range Mirroring feature.
+
+config EFI_MAX_FAKE_MEM
+       int "maximum allowable number of ranges in efi_fake_mem boot option"
+       depends on EFI_FAKE_MEMMAP
+       range 1 128
+       default 8
+       help
+         Maximum allowable number of ranges in efi_fake_mem boot option.
+         Ranges can be set up to this value using comma-separated list.
+         The default value is 8.
+
 config EFI_PARAMS_FROM_FDT
        bool
        help