50 lines
1.8 KiB
Diff
50 lines
1.8 KiB
Diff
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From 00f916987589f114f42ce20b138c00c47b9e4df7 Mon Sep 17 00:00:00 2001
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From: "plai@redhat.com" <plai@redhat.com>
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Date: Fri, 15 May 2020 18:02:41 +0100
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Subject: [PATCH 14/17] i386: Add macro for stibp
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RH-Author: plai@redhat.com
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Message-id: <20200515180243.17488-3-plai@redhat.com>
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Patchwork-id: 96610
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O-Subject: [RHEL8.2.1 AV qemu-kvm PATCH 2/4] i386: Add macro for stibp
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Bugzilla: 1769912
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RH-Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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RH-Acked-by: Igor Mammedov <imammedo@redhat.com>
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RH-Acked-by: Eduardo Habkost <ehabkost@redhat.com>
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From: Cathy Zhang <cathy.zhang@intel.com>
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stibp feature is already added through the following commit.
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https://github.com/qemu/qemu/commit/0e8916582991b9fd0b94850a8444b8b80d0a0955
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Add a macro for it to allow CPU models to report it when host supports.
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Signed-off-by: Cathy Zhang <cathy.zhang@intel.com>
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Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
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Reviewed-by: Tao Xu <tao3.xu@intel.com>
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Message-Id: <1571729728-23284-3-git-send-email-cathy.zhang@intel.com>
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Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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(cherry picked from commit 5af514d0cb314f43bc53f2aefb437f6451d64d0c)
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Signed-off-by: Paul Lai <plai@redhat.com>
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Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
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---
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target/i386/cpu.h | 2 ++
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1 file changed, 2 insertions(+)
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diff --git a/target/i386/cpu.h b/target/i386/cpu.h
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index 60304cc..e77d101 100644
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--- a/target/i386/cpu.h
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+++ b/target/i386/cpu.h
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@@ -772,6 +772,8 @@ typedef uint64_t FeatureWordArray[FEATURE_WORDS];
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#define CPUID_7_0_EDX_AVX512_4FMAPS (1U << 3)
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/* Speculation Control */
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#define CPUID_7_0_EDX_SPEC_CTRL (1U << 26)
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+/* Single Thread Indirect Branch Predictors */
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+#define CPUID_7_0_EDX_STIBP (1U << 27)
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/* Arch Capabilities */
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#define CPUID_7_0_EDX_ARCH_CAPABILITIES (1U << 29)
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/* Core Capability */
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--
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1.8.3.1
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