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x86/Kconfig: Make early microcode loading a configuration feature

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MICROCODE_INTEL_LIB, MICROCODE_INTEL_EARLY, and MICROCODE_EARLY are three new
configurations to enable or disable the feature.

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Link: http://lkml.kernel.org/r/1356075872-3054-13-git-send-email-fenghua.yu@intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
This commit is contained in:
Fenghua Yu
2012-12-20 23:44:32 -08:00
committed by H. Peter Anvin
parent cd745be89e
commit da76f64e7e
1 changed files with 18 additions and 0 deletions
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arch/x86/Kconfig
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@@ -1029,6 +1029,24 @@ config MICROCODE_OLD_INTERFACE
def_bool y def_bool y
depends on MICROCODE depends on MICROCODE
config MICROCODE_INTEL_LIB
def_bool y
depends on MICROCODE_INTEL
config MICROCODE_INTEL_EARLY
bool "Early load microcode"
depends on MICROCODE_INTEL && BLK_DEV_INITRD
default y
help
This option provides functionality to read additional microcode data
at the beginning of initrd image. The data tells kernel to load
microcode to CPU's as early as possible. No functional change if no
microcode data is glued to the initrd, therefore it's safe to say Y.
config MICROCODE_EARLY
def_bool y
depends on MICROCODE_INTEL_EARLY
config X86_MSR config X86_MSR
tristate "/dev/cpu/*/msr - Model-specific register support" tristate "/dev/cpu/*/msr - Model-specific register support"
---help--- ---help---