From: Eduardo Habkost <ehabkost@redhat.com>
To: qemu-devel@nongnu.org, Peter Maydell <peter.maydell@linaro.org>
Cc: Eduardo Habkost <ehabkost@redhat.com>, Tao Xu <tao3.xu@intel.com>,
Xiaoyao Li <xiaoyao.li@intel.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Cathy Zhang <cathy.zhang@intel.com>,
Richard Henderson <rth@twiddle.net>
Subject: [PULL 2/4] i386: Add macro for stibp
Date: Mon, 16 Dec 2019 16:38:23 -0300 [thread overview]
Message-ID: <20191216193825.1794153-3-ehabkost@redhat.com> (raw)
In-Reply-To: <20191216193825.1794153-1-ehabkost@redhat.com>
From: Cathy Zhang <cathy.zhang@intel.com>
stibp feature is already added through the following commit.
https://github.com/qemu/qemu/commit/0e8916582991b9fd0b94850a8444b8b80d0a0955
Add a macro for it to allow CPU models to report it when host supports.
Signed-off-by: Cathy Zhang <cathy.zhang@intel.com>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Tao Xu <tao3.xu@intel.com>
Message-Id: <1571729728-23284-3-git-send-email-cathy.zhang@intel.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
---
target/i386/cpu.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index 39d37e1225..af282936a7 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -771,6 +771,8 @@ typedef uint64_t FeatureWordArray[FEATURE_WORDS];
#define CPUID_7_0_EDX_AVX512_4FMAPS (1U << 3)
/* Speculation Control */
#define CPUID_7_0_EDX_SPEC_CTRL (1U << 26)
+/* Single Thread Indirect Branch Predictors */
+#define CPUID_7_0_EDX_STIBP (1U << 27)
/* Arch Capabilities */
#define CPUID_7_0_EDX_ARCH_CAPABILITIES (1U << 29)
/* Core Capability */
--
2.23.0
next prev parent reply other threads:[~2019-12-16 19:39 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-16 19:38 [PULL 0/4] x86 queue, 2019-12-16 Eduardo Habkost
2019-12-16 19:38 ` [PULL 1/4] i386: Add MSR feature bit for MDS-NO Eduardo Habkost
2019-12-16 19:38 ` Eduardo Habkost [this message]
2019-12-16 19:38 ` [PULL 3/4] i386: Add new CPU model Cooperlake Eduardo Habkost
2019-12-17 2:26 ` Xiaoyao Li
2019-12-17 7:52 ` Philippe Mathieu-Daudé
2019-12-16 19:38 ` [PULL 4/4] i386: Use g_autofree in a few places Eduardo Habkost
2019-12-17 11:51 ` [PULL 0/4] x86 queue, 2019-12-16 Peter Maydell
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