linux-kernel - [PATCH AUTOSEL for 4.14 016/100] KVM: x86: Fix CPUID function for word 6 (80000001

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Message-ID: <20180124041414.32065-16-alexander.levin@microsoft.com>
Date:   Wed, 24 Jan 2018 04:14:30 +0000
From:   Sasha Levin <Alexander.Levin@...rosoft.com>
To:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>
CC:     Janakarajan Natarajan <Janakarajan.Natarajan@....com>,
        Radim Krčmář <rkrcmar@...hat.com>,
        Sasha Levin <Alexander.Levin@...rosoft.com>
Subject: [PATCH AUTOSEL for 4.14 016/100] KVM: x86: Fix CPUID function for
 word 6 (80000001_ECX)

From: Janakarajan Natarajan <Janakarajan.Natarajan@....com>

[ Upstream commit 50a671d4d15b859f447fa527191073019b6ce9cb ]

The function for CPUID 80000001 ECX is set to 0xc0000001. Set it to
0x80000001.

Signed-off-by: Janakarajan Natarajan <Janakarajan.Natarajan@....com>
Reviewed-by: Jim Mattson <jmattson@...gle.com>
Reviewed-by: Krish Sadhukhan <krish.sadhukhan@...cle.com>
Reviewed-by: Borislav Petkov <bp@...e.de>
Fixes: d6321d493319 ("KVM: x86: generalize guest_cpuid_has_ helpers")
Signed-off-by: Radim Krčmář <rkrcmar@...hat.com>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
---
 arch/x86/kvm/cpuid.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/cpuid.h b/arch/x86/kvm/cpuid.h
index cdc70a3a6583..c2cea6651279 100644
--- a/arch/x86/kvm/cpuid.h
+++ b/arch/x86/kvm/cpuid.h
@@ -44,7 +44,7 @@ static const struct cpuid_reg reverse_cpuid[] = {
 	[CPUID_8086_0001_EDX] = {0x80860001, 0, CPUID_EDX},
 	[CPUID_1_ECX]         = {         1, 0, CPUID_ECX},
 	[CPUID_C000_0001_EDX] = {0xc0000001, 0, CPUID_EDX},
-	[CPUID_8000_0001_ECX] = {0xc0000001, 0, CPUID_ECX},
+	[CPUID_8000_0001_ECX] = {0x80000001, 0, CPUID_ECX},
 	[CPUID_7_0_EBX]       = {         7, 0, CPUID_EBX},
 	[CPUID_D_1_EAX]       = {       0xd, 1, CPUID_EAX},
 	[CPUID_F_0_EDX]       = {       0xf, 0, CPUID_EDX},
-- 
2.11.0