linux-kernel - [tip:x86/autoprobe] x86: Autoload microcode driver on Intel and AMD systems

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Message-ID: <tip-13529caa10734c46e3ab049cc1a441f332646b0c@git.kernel.org>
Date:	Mon, 19 Dec 2011 17:31:10 -0800
From:	tip-bot for Andi Kleen <ak@...ux.intel.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	ak@...ux.intel.com, tglx@...utronix.de, hpa@...ux.intel.com
Subject: [tip:x86/autoprobe] x86:
  Autoload microcode driver on Intel and AMD systems

Commit-ID:  13529caa10734c46e3ab049cc1a441f332646b0c
Gitweb:     http://git.kernel.org/tip/13529caa10734c46e3ab049cc1a441f332646b0c
Author:     Andi Kleen <ak@...ux.intel.com>
AuthorDate: Mon, 19 Dec 2011 15:46:34 -0800
Committer:  H. Peter Anvin <hpa@...ux.intel.com>
CommitDate: Mon, 19 Dec 2011 15:50:08 -0800

x86: Autoload microcode driver on Intel and AMD systems

Don't try to describe the actual models for now.

Signed-off-by: Andi Kleen <ak@...ux.intel.com>
Link: http://lkml.kernel.org/r/1324338394-4670-9-git-send-email-andi@firstfloor.org
Signed-off-by: H. Peter Anvin <hpa@...ux.intel.com>
---
 arch/x86/kernel/microcode_core.c |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kernel/microcode_core.c b/arch/x86/kernel/microcode_core.c
index 9d46f5e..6911a41 100644
--- a/arch/x86/kernel/microcode_core.c
+++ b/arch/x86/kernel/microcode_core.c
@@ -86,6 +86,7 @@
 
 #include <asm/microcode.h>
 #include <asm/processor.h>
+#include <asm/cpu_device_id.h>
 
 MODULE_DESCRIPTION("Microcode Update Driver");
 MODULE_AUTHOR("Tigran Aivazian <tigran@...azian.fsnet.co.uk>");
@@ -502,6 +503,20 @@ static struct notifier_block __refdata mc_cpu_notifier = {
 	.notifier_call	= mc_cpu_callback,
 };
 
+#ifdef MODULE
+/* Autoload on Intel and AMD systems */
+static const struct x86_cpu_id microcode_id[] = {
+#ifdef CONFIG_MICROCODE_INTEL
+       { X86_VENDOR_INTEL, X86_VENDOR_ANY, X86_MODEL_ANY, },
+#endif
+#ifdef CONFIG_MICROCODE_AMD
+       { X86_VENDOR_AMD, X86_VENDOR_ANY, X86_MODEL_ANY, },
+#endif
+       {}
+};
+MODULE_DEVICE_TABLE(x86cpu, microcode_id);
+#endif
+
 static int __init microcode_init(void)
 {
 	struct cpuinfo_x86 *c = &cpu_data(0);
--
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