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From: "Fenghua Yu" <fenghua.yu@intel.com>
To: "H Peter Anvin" <hpa@zytor.com>, "Ingo Molnar" <mingo@elte.hu>,
	"Thomas Gleixner" <tglx@linutronix.de>,
	"Asit K Mallick" <asit.k.mallick@intel.com>,
	"Tigran Aivazian" <tigran@aivazian.fsnet.co.uk>,
	"Yinghai Lu" <yinghai@kernel.org>,
	"Andreas Herrmann" <andreas.herrmann3@amd.com>,
	"Borislav Petkov" <borislav.petkov@amd.com>,
	"linux-kernel" <linux-kernel@vger.kernel.org>,
	"x86" <x86@kernel.org>
Cc: "Fenghua Yu" <fenghua.yu@intel.com>
Subject: [PATCH v5 12/12] x86/Kconfig: Configurations to enable/disable the feature
Date: Thu, 20 Dec 2012 23:44:32 -0800	[thread overview]
Message-ID: <1356075872-3054-13-git-send-email-fenghua.yu@intel.com> (raw)
In-Reply-To: <1356075872-3054-1-git-send-email-fenghua.yu@intel.com>

From: Fenghua Yu <fenghua.yu@intel.com>

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>
---
 arch/x86/Kconfig | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 97f8c5a..7f63084 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1030,6 +1030,24 @@ config MICROCODE_OLD_INTERFACE
 	def_bool y
 	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
 	tristate "/dev/cpu/*/msr - Model-specific register support"
 	---help---
-- 
1.8.0.1


  parent reply	other threads:[~2012-12-21 14:48 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-12-21  7:44 [PATCH v5 00/12] x86/microcode: Early load microcode Fenghua Yu
2012-12-21  7:44 ` [PATCH v5 01/12] Documentation/x86: " Fenghua Yu
2013-01-31 22:25   ` [tip:x86/microcode] x86, doc: Documentation for early microcode loading tip-bot for Fenghua Yu
2012-12-21  7:44 ` [PATCH v5 02/12] x86/microcode_intel.h: Define functions and macros for early loading ucode Fenghua Yu
2013-01-31 22:26   ` [tip:x86/microcode] " tip-bot for Fenghua Yu
2012-12-21  7:44 ` [PATCH v5 03/12] x86/common.c: Make have_cpuid_p() a global function Fenghua Yu
2013-01-31 22:27   ` [tip:x86/microcode] " tip-bot for Fenghua Yu
2012-12-21  7:44 ` [PATCH v5 04/12] x86/common.c: load ucode in 64 bit or show loading ucode info in 32 bit on AP Fenghua Yu
2013-01-31 22:28   ` [tip:x86/microcode] " tip-bot for Fenghua Yu
2012-12-21  7:44 ` [PATCH v5 05/12] x86/microcode_core_early.c: Define interfaces for early loading ucode Fenghua Yu
2013-01-31 22:29   ` [tip:x86/microcode] " tip-bot for Fenghua Yu
2012-12-21  7:44 ` [PATCH v5 06/12] x86/microcode_intel_lib.c: Early update ucode on Intel's CPU Fenghua Yu
2013-01-31 22:31   ` [tip:x86/microcode] " tip-bot for Fenghua Yu
2012-12-21  7:44 ` [PATCH v5 07/12] x86/tlbflush.h: Define __native_flush_tlb_global_irq_disabled() Fenghua Yu
2013-01-31 22:32   ` [tip:x86/microcode] " tip-bot for Fenghua Yu
2012-12-21  7:44 ` [PATCH v5 08/12] x86/microcode_intel_early.c: Early update ucode on Intel's CPU Fenghua Yu
2013-01-31 22:33   ` [tip:x86/microcode] " tip-bot for Fenghua Yu
2012-12-21  7:44 ` [PATCH v5 09/12] x86/head_32.S: Early update ucode in 32-bit Fenghua Yu
2013-01-31 22:34   ` [tip:x86/microcode] " tip-bot for Fenghua Yu
2012-12-21  7:44 ` [PATCH v5 10/12] x86/head64.c: Early update ucode in 64-bit Fenghua Yu
2013-01-31 22:35   ` [tip:x86/microcode] " tip-bot for Fenghua Yu
2012-12-21  7:44 ` [PATCH v5 11/12] x86/mm/init.c: Copy ucode from initrd image to kernel memory Fenghua Yu
2013-01-31 22:37   ` [tip:x86/microcode] " tip-bot for Fenghua Yu
2012-12-21  7:44 ` Fenghua Yu [this message]
2013-01-31 22:38   ` [tip:x86/microcode] x86/Kconfig: Make early microcode loading a configuration feature tip-bot for Fenghua Yu
2013-01-03 17:44 ` [PATCH v5 00/12] x86/microcode: Early load microcode Konrad Rzeszutek Wilk
2013-01-03 17:48   ` H. Peter Anvin
2013-01-08 19:46     ` Konrad Rzeszutek Wilk
2013-01-08 19:47       ` H. Peter Anvin
2013-01-08 20:04         ` Konrad Rzeszutek Wilk
2013-01-08 20:16           ` H. Peter Anvin
2013-01-09 13:35           ` Konrad Rzeszutek Wilk
2023-10-09 12:29 ` [tip: x86/microcode] x86/microcode/32: Move early loading after paging enable tip-bot2 for Thomas Gleixner

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