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[76.251.165.188]) by smtp.gmail.com with ESMTPSA id d191-v6sm11786532oig.16.2018.07.23.13.20.02 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 23 Jul 2018 13:20:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=s+S+3OYqsGsKJ9Vr3Y7eOdQkdK5PtR3kkG62VO6As1I=; b=HHk/xHwMHRbYYCVEACAHA8rEVlVP7wqLKXrUfbRuAmyGM0PWGJNCT0i6yvsHbVwnnC S+xLQtKK6yXzYGVUpCmxyuSVtQ0lE1mUXiA5MrOm1QcjLPQuKrECbeVJetE/+UCXQ/Cw QVEVB4TkdBuCRvvpVhx+m25D9zXX1LhwX88B9YTwaehYzfGe+/Uz9sk71OUZw6dA4r+C 2dXL9eLurBNNOV5GOqBhM1Yse8yVplAibgEqKNg5sVNCYrYjO+h1Z/AG46gWOOB6eNSc WayP/pOAheZmPGiOnRqxsl0Euqgkl3j4fG+H/dqFAmGkNmrUirZBCu4Xdbk2/ekEzpor sILA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-transfer-encoding; bh=s+S+3OYqsGsKJ9Vr3Y7eOdQkdK5PtR3kkG62VO6As1I=; b=hHh5Wmovjq62hZQh1BSSnHWq1AGMhjES/j2GOFpdFP+feQNVz4kgAVO0Y5Cl6HTpLL KbkIVW7cxDevXxN1mFX8MpW8Sk2K727RUZNwmjtKiShZImOTfFz/rTlyNvBoD8KDunz2 OU7Gnk38xCKI+sVKw8OLivUj9cPEl8cqkBUx8ibjRIk7w6UTiJzxKXA7Luf9uoV8NhY2 DOjoYlMQTRoQncz4EhGMWV0uQ3RQVsr8odQIa2PA9Tm5BLYj3Nkz0WRr3d7VXm3MynY4 RehbQAPiWgfEz3QCBsJsrPTRl6XKtNfrZCCb5E7L5n29NL8944N80ynKTlrdNf+RHYm8 QZXw== X-Gm-Message-State: AOUpUlHpVxoAaxSJe2Z3bM2RgPW5PUtvBTHL3ggLdXrHmWT3V9+jn2I5 oAmmAZmYMaITyvpPqD/GqikYHXsKiNY= X-Google-Smtp-Source: AAOMgpf3sS6j62UvvSOTf3slM8dWIPctf/DEPqzoVSEJL/FQmFSMUX9TlKAWaxhbyAIcONFZqoea3w== X-Received: by 2002:aca:578b:: with SMTP id l133-v6mr276467oib.329.1532377203321; Mon, 23 Jul 2018 13:20:03 -0700 (PDT) From: Michael Roth To: qemu-devel@nongnu.org Date: Mon, 23 Jul 2018 15:16:53 -0500 Message-Id: <20180723201748.25573-45-mdroth@linux.vnet.ibm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180723201748.25573-1-mdroth@linux.vnet.ibm.com> References: <20180723201748.25573-1-mdroth@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4003:c06::230 Subject: [Qemu-devel] [PATCH 44/99] i386: define the AMD 'virt-ssbd' CPUID feature bit (CVE-2018-3639) X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-stable@nongnu.org, Eduardo Habkost , Konrad Rzeszutek Wilk Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZohoMail: RDKM_2 RSF_0 Z_629925259 SPT_0 From: Konrad Rzeszutek Wilk AMD Zen expose the Intel equivalant to Speculative Store Bypass Disable via the 0x80000008_EBX[25] CPUID feature bit. This needs to be exposed to guest OS to allow them to protect against CVE-2018-3639. Signed-off-by: Konrad Rzeszutek Wilk Reviewed-by: Daniel P. Berrang=C3=A9 Signed-off-by: Daniel P. Berrang=C3=A9 Message-Id: <20180521215424.13520-3-berrange@redhat.com> Signed-off-by: Eduardo Habkost (cherry picked from commit 403503b162ffc33fb64cfefdf7b880acf41772cd) Signed-off-by: Michael Roth --- 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 2f5263e22f..2e305ab689 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -541,7 +541,7 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS]= =3D { "ibpb", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, + NULL, "virt-ssbd", NULL, NULL, NULL, NULL, NULL, NULL, }, .cpuid_eax =3D 0x80000008, --=20 2.17.1