From: Eduardo Habkost <ehabkost@redhat.com>
To: Peter Maydell <peter.maydell@linaro.org>, qemu-devel@nongnu.org
Cc: Paolo Bonzini <pbonzini@redhat.com>,
kvm@vger.kernel.org, Eduardo Habkost <ehabkost@redhat.com>,
Marcel Apfelbaum <marcel.apfelbaum@gmail.com>,
Richard Henderson <rth@twiddle.net>,
"Michael S. Tsirkin" <mst@redhat.com>,
Marcelo Tosatti <mtosatti@redhat.com>
Subject: [Qemu-devel] [PULL 4/4] i386: Add "stibp" flag name
Date: Tue, 11 Dec 2018 18:53:46 -0200 [thread overview]
Message-ID: <20181211205346.11118-5-ehabkost@redhat.com> (raw)
In-Reply-To: <20181211205346.11118-1-ehabkost@redhat.com>
The STIBP flag may be supported by the host KVM module, so QEMU
can allow it to be configured manually, and it can be exposed to
guests when using "-cpu host".
No additional migration code is required because the whole
contents of spec_ctrl is already migrated in the "cpu/spec_ctrl"
section.
Corresponding KVM patch was submitted at:
https://lore.kernel.org/lkml/20181205191956.31480-1-ehabkost@redhat.com/
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20181210180250.31299-1-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
---
target/i386/cpu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 86a934d450..12f559b6af 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -1042,7 +1042,7 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = {
NULL, NULL, NULL, NULL,
NULL, NULL, "pconfig", NULL,
NULL, NULL, NULL, NULL,
- NULL, NULL, "spec-ctrl", NULL,
+ NULL, NULL, "spec-ctrl", "stibp",
NULL, "arch-capabilities", NULL, "ssbd",
},
.cpuid = {
--
2.18.0.rc1.1.g3f1ff2140
next prev parent reply other threads:[~2018-12-11 20:54 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-11 20:53 [Qemu-devel] [PULL 0/4] x86 queue, 2018-12-11 Eduardo Habkost
2018-12-11 20:53 ` [Qemu-devel] [PULL 1/4] x86/cpu: Enable MOVDIRI cpu feature Eduardo Habkost
2018-12-11 20:53 ` [Qemu-devel] [PULL 2/4] x86/cpu: Enable MOVDIR64B " Eduardo Habkost
2018-12-11 20:53 ` [Qemu-devel] [PULL 3/4] target/i386/kvm.c: Don't mark cpuid_data as QEMU_PACKED Eduardo Habkost
2018-12-11 20:53 ` Eduardo Habkost [this message]
2018-12-12 16:57 ` [Qemu-devel] [PULL 4/4] i386: Add "stibp" flag name Lendacky, Thomas
2018-12-12 17:01 ` Daniel P. Berrangé
2018-12-12 17:11 ` Eduardo Habkost
2018-12-13 9:27 ` [Qemu-devel] [PULL 0/4] x86 queue, 2018-12-11 Peter Maydell
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