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mx.microsoft.com 1;spf=pass smtp.mailfrom=suse.com;dmarc=pass action=none header.from=suse.com;dkim=pass header.d=suse.com;arc=none From: Jin Nan Wang To: "xen-devel@lists.xenproject.org" Thread-Topic: [PATCH] Speculative mitigation facilities report wrong status v3 Thread-Index: AQHVR6L4rYZnjszFsEKi3E/8s3Q2qw== Date: Wed, 31 Jul 2019 13:22:16 +0000 Message-ID: <20190731132149.20749-1-jnwang@suse.com> Accept-Language: zh-CN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: SG2PR02CA0108.apcprd02.prod.outlook.com (2603:1096:4:92::24) To BY5PR18MB3170.namprd18.prod.outlook.com (2603:10b6:a03:1a9::16) authentication-results: spf=none (sender IP is ) smtp.mailfrom=jnwang@suse.com; x-ms-exchange-messagesentrepresentingtype: 1 x-mailer: git-send-email 2.22.0 x-originating-ip: [45.122.156.254] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: d3420823-2419-4f0c-5b4f-08d715ba1b63 x-microsoft-antispam: BCL:0; PCL:0; RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600148)(711020)(4605104)(1401327)(2017052603328)(7193020); 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envelope-from=xen-devel-bounces@lists.xenproject.org; helo=lists.xenproject.org; received-spf: None (protection.outlook.com: suse.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: DJZM+eGyXagsjqbfL1Bey6hj24gtPLUdskFRzZVTu5Gtmfivu0cZ6pQMN4j5uwZwbiCRX2FUUjgreIyUtydHtg23uab2PMYd475kFzhKWIZr1FgFAxXP/ONDi95esEozpg+w9NNUGMe2n8G7FedT0x80KDaXikRMEqTJCtjT1MI/jtXQv4sFiyFOLpnaOciVe6QKwTpaqr6R/c58suez2Rbj8YhB6/oWILvWFMxXShsJ04YaZq9XFQMISTDmJrXh3nVdwibwgEDbzi4vj1KP3OFYegc6Q/nn/C0gKP7SJQ++39LM7ZePE69Iyez9yISGuF+/bKgTawZDNlICgE0IdB7x+XFWaSMoBiGI/VgZ3qMTR7CWqdv1QhUdV/+OKNI9fKNSQWw4POtShY+3rZul44sapHx6Uoo+rK79e8cpFLQ= MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: d3420823-2419-4f0c-5b4f-08d715ba1b63 X-MS-Exchange-CrossTenant-originalarrivaltime: 31 Jul 2019 13:22:16.5180 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 856b813c-16e5-49a5-85ec-6f081e13b527 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: jnwang@suse.com X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY5PR18MB3106 X-OriginatorOrg: suse.com Subject: [Xen-devel] [PATCH] Speculative mitigation facilities report wrong status v3 X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: "andrew.cooper3@citrix.com" , Jin Nan Wang , "wl@xen.org" , Jan Beulich , "roger.pau@citrix.com" Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" Add a check about X86_FEATURE_MD_CLEAR to avoid to print "None". Signed-off-by: James Wang --- xen/arch/x86/spec_ctrl.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/xen/arch/x86/spec_ctrl.c b/xen/arch/x86/spec_ctrl.c index cada9a058e..468a847598 100644 --- a/xen/arch/x86/spec_ctrl.c +++ b/xen/arch/x86/spec_ctrl.c @@ -366,6 +366,7 @@ static void __init print_details(enum ind_thunk thunk, = uint64_t caps) printk(" Support for HVM VMs:%s%s%s%s%s\n", (boot_cpu_has(X86_FEATURE_SC_MSR_HVM) || boot_cpu_has(X86_FEATURE_SC_RSB_HVM) || + boot_cpu_has(X86_FEATURE_MD_CLEAR) || opt_eager_fpu) ? "" : = " None", boot_cpu_has(X86_FEATURE_SC_MSR_HVM) ? " MSR_SPEC_CTRL" : = "", boot_cpu_has(X86_FEATURE_SC_RSB_HVM) ? " RSB" : = "", @@ -377,6 +378,7 @@ static void __init print_details(enum ind_thunk thunk, = uint64_t caps) printk(" Support for PV VMs:%s%s%s%s%s\n", (boot_cpu_has(X86_FEATURE_SC_MSR_PV) || boot_cpu_has(X86_FEATURE_SC_RSB_PV) || + boot_cpu_has(X86_FEATURE_MD_CLEAR) || opt_eager_fpu) ? "" : = " None", boot_cpu_has(X86_FEATURE_SC_MSR_PV) ? " MSR_SPEC_CTRL" : = "", boot_cpu_has(X86_FEATURE_SC_RSB_PV) ? " RSB" : = "", --=20 2.22.0 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel