diff options
Diffstat (limited to 'arch/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 276b3baf1c50..e9ede4c4c27f 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -1995,6 +1995,37 @@ config EFI_MIXED If unsure, say N. +config EFI_FAKE_MEMMAP + bool "Enable EFI fake memory map" + depends on EFI + 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_RUNTIME_MAP + bool "Export EFI runtime maps to sysfs" if EXPERT + depends on EFI + default KEXEC_CORE + help + Export EFI runtime memory regions to /sys/firmware/efi/runtime-map. + That memory map is required by the 2nd kernel to set up EFI virtual + mappings after kexec, but can also be used for debugging purposes. + + See also Documentation/ABI/testing/sysfs-firmware-efi-runtime-map. + source "kernel/Kconfig.hz" config KEXEC |