The current Kconfig logic for CONFIG_EFI_RUNTIME_MAPS does not convey that without it, a kexec kernel is not able to boot in EFI mode at all. So clarify this, and make the option only configurable via the menu system if CONFIG_EXPERT is set. Signed-off-by: Ard Biesheuvel <ardb@xxxxxxxxxx> --- drivers/firmware/efi/Kconfig | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/firmware/efi/Kconfig b/drivers/firmware/efi/Kconfig index 0d5201e4984189bc..552512f211a1f5e7 100644 --- a/drivers/firmware/efi/Kconfig +++ b/drivers/firmware/efi/Kconfig @@ -27,13 +27,13 @@ config EFI_VARS_PSTORE_DEFAULT_DISABLE using the efivars module's pstore_disable parameter. config EFI_RUNTIME_MAP - bool "Export efi runtime maps to sysfs" - depends on X86 && EFI && KEXEC_CORE - default y + bool "Export EFI runtime maps to sysfs" if EXPERT + depends on X86 && EFI + default KEXEC_CORE help - Export efi runtime memory maps to /sys/firmware/efi/runtime-map. - That memory map is used for example by kexec to set up efi virtual - mapping the 2nd kernel, but can also be used for debugging purposes. + 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. -- 2.35.1
