File 0089-i386-Add-spec-ctrl-CPUID-bit.patch of Package qemu.7929

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File 0089-i386-Add-spec-ctrl-CPUID-bit.patch of Package qemu.7929

From 34d3ab71c501fb95d7d620128ea351975db5933e Mon Sep 17 00:00:00 2001
From: Eduardo Habkost <ehabkost@redhat.com>
Date: Tue, 9 Jan 2018 13:45:15 -0200
Subject: [PATCH] i386: Add spec-ctrl CPUID bit

Add the feature name and a CPUID_7_0_EDX_SPEC_CTRL macro.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20180109154519.25634-4-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
(cherry picked from commit a2381f0934432ef2cd47a335348ba8839632164c)
[BR: BSC#1068032 CVE-2017-5715]
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
 target/i386/cpu.c | 2 +-
 target/i386/cpu.h | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 8393b6cdc7..220ca818ff 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -460,7 +460,7 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = {
             NULL, NULL, NULL, NULL,
             NULL, NULL, NULL, NULL,
             NULL, NULL, NULL, NULL,
-            NULL, NULL, NULL, NULL,
+            NULL, NULL, "spec-ctrl", NULL,
             NULL, NULL, NULL, NULL,
         },
         .cpuid_eax = 7,
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index 29019f227b..280a073ea5 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -640,6 +640,7 @@ typedef uint32_t FeatureWordArray[FEATURE_WORDS];
 
 #define CPUID_7_0_EDX_AVX512_4VNNIW (1U << 2) /* AVX512 Neural Network Instructions */
 #define CPUID_7_0_EDX_AVX512_4FMAPS (1U << 3) /* AVX512 Multiply Accumulation Single Precision */
+#define CPUID_7_0_EDX_SPEC_CTRL     (1U << 26) /* Speculation Control */
 
 #define CPUID_XSAVE_XSAVEOPT   (1U << 0)
 #define CPUID_XSAVE_XSAVEC     (1U << 1)

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File 0089-i386-Add-spec-ctrl-CPUID-bit.patch of Package qemu.7929

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