From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:41768) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fKslF-00024x-Dh for qemu-devel@nongnu.org; Mon, 21 May 2018 17:54:34 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fKslE-00063D-AG for qemu-devel@nongnu.org; Mon, 21 May 2018 17:54:33 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:44420 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fKslE-000632-6F for qemu-devel@nongnu.org; Mon, 21 May 2018 17:54:32 -0400 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= Date: Mon, 21 May 2018 22:54:23 +0100 Message-Id: <20180521215424.13520-3-berrange@redhat.com> In-Reply-To: <20180521215424.13520-1-berrange@redhat.com> References: <20180521215424.13520-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: [Qemu-devel] [PATCH 2/3] i386: define the AMD 'virt-ssbd' CPUID feature bit (CVE-2018-3639) List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Konrad Rzeszutek Wilk , Richard Henderson , kvm@vger.kernel.org, Eduardo Habkost , Marcelo Tosatti , Paolo Bonzini , =?UTF-8?q?Daniel=20P=20=2E=20Berrang=C3=A9?= 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 --- 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 a1185b17d1..d95310ffd4 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -836,7 +836,7 @@ static FeatureWordInfo feature_word_info[FEATURE_WORD= S] =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 2.17.0