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From: Eduardo Habkost <ehabkost@redhat.com>
To: Peter Maydell <peter.maydell@linaro.org>, qemu-devel@nongnu.org
Cc: Eduardo Habkost <ehabkost@redhat.com>,
	kvm@vger.kernel.org, "Michael S. Tsirkin" <mst@redhat.com>,
	Marcelo Tosatti <mtosatti@redhat.com>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Richard Henderson <rth@twiddle.net>
Subject: [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

WARNING: multiple messages have this Message-ID (diff)
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

  parent reply	other threads:[~2018-12-11 20:53 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-12-11 20:53 [PULL 0/4] x86 queue, 2018-12-11 Eduardo Habkost
2018-12-11 20:53 ` [Qemu-devel] " Eduardo Habkost
2018-12-11 20:53 ` [PULL 1/4] x86/cpu: Enable MOVDIRI cpu feature Eduardo Habkost
2018-12-11 20:53   ` [Qemu-devel] " Eduardo Habkost
2018-12-11 20:53 ` [PULL 2/4] x86/cpu: Enable MOVDIR64B " Eduardo Habkost
2018-12-11 20:53   ` [Qemu-devel] " Eduardo Habkost
2018-12-11 20:53 ` [PULL 3/4] target/i386/kvm.c: Don't mark cpuid_data as QEMU_PACKED Eduardo Habkost
2018-12-11 20:53   ` [Qemu-devel] " Eduardo Habkost
2018-12-11 20:53 ` Eduardo Habkost [this message]
2018-12-11 20:53   ` [Qemu-devel] [PULL 4/4] i386: Add "stibp" flag name Eduardo Habkost
2018-12-12 16:57   ` Lendacky, Thomas
2018-12-12 16:57     ` [Qemu-devel] " Lendacky, Thomas
2018-12-12 17:01     ` Daniel P. Berrangé
2018-12-12 17:01       ` [Qemu-devel] " Daniel P. Berrangé
2018-12-12 17:11       ` Eduardo Habkost
2018-12-12 17:11         ` [Qemu-devel] " Eduardo Habkost
2018-12-13  9:27 ` [PULL 0/4] x86 queue, 2018-12-11 Peter Maydell
2018-12-13  9:27   ` [Qemu-devel] " Peter Maydell

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