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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] Xen missing prompt log when exec-sp=off Thread-Index: AQHVs9RYvDJGD9d8eEizxnHO4Wu68w== Date: Mon, 16 Dec 2019 05:47:48 +0000 Message-ID: <20191216054728.12845-1-jnwang@suse.com> Accept-Language: zh-CN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: MA1PR01CA0078.INDPRD01.PROD.OUTLOOK.COM (2603:1096:a00::18) 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 2.24.0 x-originating-ip: [45.122.156.254] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 6bab592b-6493-46c0-c318-08d781eb7b3e x-ms-traffictypediagnostic: BY5PR18MB3348: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:2150; 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charset="utf-8" Content-Transfer-Encoding: quoted-printable Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" Fix a issue when user disable ETP exec-sp, xen missed a prompt log in dmesg. Signed-off-by: James Wang --- xen/arch/x86/hvm/vmx/vmx.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/xen/arch/x86/hvm/vmx/vmx.c b/xen/arch/x86/hvm/vmx/vmx.c index 7970ba93e1..9c1f0f645d 100644 --- a/xen/arch/x86/hvm/vmx/vmx.c +++ b/xen/arch/x86/hvm/vmx/vmx.c @@ -2499,7 +2499,9 @@ const struct hvm_function_table * __init start_vmx(vo= id) { /* Default to non-executable superpages on vulnerable hardware= . */ opt_ept_exec_sp =3D !cpu_has_bug_pschange_mc; - + } + if (opt_ept_exec_sp =3D=3D false) + { if ( cpu_has_bug_pschange_mc ) printk("VMX: Disabling executable EPT superpages due to CV= E-2018-12207\n"); } --=20 2.24.0 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel