linux-kernel - [PATCH] x86/cpufeature: Add AMD AVIC bit

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Message-Id: <1452938292-12327-1-git-send-email-bp@alien8.de>
Date:	Sat, 16 Jan 2016 10:58:12 +0100
From:	Borislav Petkov <bp@...en8.de>
To:	X86 ML <x86@...nel.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Joerg Roedel <joro@...tes.org>,
	David Kaplan <david.kaplan@....com>,
	Tom Lendacky <thomas.lendacky@....com>
Subject: [PATCH] x86/cpufeature: Add AMD AVIC bit

From: Borislav Petkov <bp@...e.de>

CPUID Fn8000_000A_EDX[13] denotes support for AMD's Virtual Interrupt
controller, i.e., APIC virtualization.

Cc: David Kaplan <david.kaplan@....com>
Cc: Tom Lendacky <thomas.lendacky@....com>
Signed-off-by: Borislav Petkov <bp@...e.de>
---
 arch/x86/include/asm/cpufeature.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
index 7ad8c9464297..bbf166e805be 100644
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -268,6 +268,7 @@
 #define X86_FEATURE_DECODEASSISTS (15*32+ 7) /* Decode Assists support */
 #define X86_FEATURE_PAUSEFILTER (15*32+10) /* filtered pause intercept */
 #define X86_FEATURE_PFTHRESHOLD (15*32+12) /* pause filter threshold */
+#define X86_FEATURE_AVIC	(15*32+13) /* Virtual Interrupt Controller */
 
 /*
  * BUG word(s)
-- 
2.3.5