From owner-freebsd-virtualization@freebsd.org Tue Jan 19 13:35:49 2016 Return-Path: Delivered-To: freebsd-virtualization@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 6CD82A8824B for ; Tue, 19 Jan 2016 13:35:49 +0000 (UTC) (envelope-from James@Lodge.me.uk) Received: from emea01-am1-obe.outbound.protection.outlook.com (mail-am1on0119.outbound.protection.outlook.com [157.56.112.119]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (Client CN "mail.protection.outlook.com", Issuer "MSIT Machine Auth CA 2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 8C4351E4F; Tue, 19 Jan 2016 13:35:48 +0000 (UTC) (envelope-from James@Lodge.me.uk) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gavinlodge.onmicrosoft.com; s=selector1-Lodge-me-uk; h=From:To:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=n9dXMbHcPQs0fEFKLi7g4c8jykcUTUJc2KaQ2XihnRg=; b=k4QWcS/eJHqbImIeihdWCY0+2r5WPFZMdCixzAnBum3RhXdoAo1fPiV2EWwUfXbGE34ZuO4BN6crRkPyC78VTlL7idpbGyMm6Bgti8tQF+dymzfDHXz58zngWFtV4vS2apThT2vP1KjudV8JbAZAQHb1JgQkGyDT4Y+NFV2xChU= Received: from VI1PR06MB1037.eurprd06.prod.outlook.com (10.162.123.156) by VI1PR06MB1038.eurprd06.prod.outlook.com (10.162.123.157) with Microsoft SMTP Server (TLS) id 15.1.365.19; Tue, 19 Jan 2016 10:02:19 +0000 Received: from VI1PR06MB1037.eurprd06.prod.outlook.com ([10.162.123.156]) by VI1PR06MB1037.eurprd06.prod.outlook.com ([10.162.123.156]) with mapi id 15.01.0365.023; Tue, 19 Jan 2016 10:02:19 +0000 From: James Lodge To: Peter Grehan CC: "freebsd-virtualization@freebsd.org" Subject: Re: Bhyve - EPT/Real Address Mode - Unrestricted Guest Thread-Topic: Bhyve - EPT/Real Address Mode - Unrestricted Guest Thread-Index: AQHRUiqHKkbFqMKRFEa+O5osKhv1gZ8BxX+AgADTZos= Date: Tue, 19 Jan 2016 10:02:18 +0000 Message-ID: References: , <569D5533.8000000@freebsd.org> In-Reply-To: <569D5533.8000000@freebsd.org> Accept-Language: en-GB, en-US Content-Language: en-GB X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=James@Lodge.me.uk; x-originating-ip: [86.17.49.22] x-microsoft-exchange-diagnostics: 1; VI1PR06MB1038; 5:1EK5dB6JNbA0oeUoLFElfrtSDhA5NtrJLlYMEQgDwYO3Vn7B2jfYFXj12h7nvfzzN7Ju8qtKZykMv+NinZCOm5HViEQwItQI2g9WROJ/e5LedaAhxND701sE4Dmbqa2w3/mQh2ipBE+ZqH3NVcidTQ==; 24:p/X8KAbdncI+JXtNs3Qmpx8kwBPx6mdx7OaGskibdOBz9BwdSsgAArgf5aLXKdK4NtpmSiXjSMrbTtadlu3BuCyioiRAGPdGKxL0+T7vB8w= x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:;SRVR:VI1PR06MB1038; x-ms-office365-filtering-correlation-id: 1d5f718b-a14d-4e18-736d-08d320b79dee x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:; x-exchange-antispam-report-cfa-test: BCL:0; PCL:0; RULEID:(601004)(2401047)(5005006)(8121501046)(520078)(10201501046)(3002001); SRVR:VI1PR06MB1038; BCL:0; PCL:0; RULEID:; SRVR:VI1PR06MB1038; x-forefront-prvs: 0826B2F01B x-forefront-antispam-report: SFV:NSPM; SFS:(10019020)(6009001)(199003)(189002)(5004730100002)(74316001)(80792005)(2906002)(106116001)(33656002)(5001960100002)(450100001)(586003)(97736004)(1220700001)(189998001)(1096002)(66066001)(110136002)(86362001)(76576001)(5008740100001)(74482002)(92566002)(122556002)(102836003)(81156007)(54356999)(101416001)(6116002)(77096005)(106356001)(105586002)(10400500002)(3846002)(50986999)(2950100001)(2900100001)(4326007)(5003600100002)(76176999)(5002640100001)(40100003)(11100500001)(87936001); DIR:OUT; SFP:1102; SCL:1; SRVR:VI1PR06MB1038; H:VI1PR06MB1037.eurprd06.prod.outlook.com; FPR:; SPF:None; PTR:InfoNoRecords; A:1; MX:1; LANG:en; received-spf: None (protection.outlook.com: Lodge.me.uk does not designate permitted sender hosts) spamdiagnosticoutput: 1:23 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: Lodge.me.uk X-MS-Exchange-CrossTenant-originalarrivaltime: 19 Jan 2016 10:02:18.5281 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: ded56ae9-7c77-4cf6-bbfd-39e6a505742d X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR06MB1038 X-BeenThere: freebsd-virtualization@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: "Discussion of various virtualization techniques FreeBSD supports." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 19 Jan 2016 13:35:49 -0000 >Hi James, > Can someone please confirm that having EPT support in the CPU is not > necessarily enough to run Bhyve. I have an Intel Xeon L5520 (Nehalem > family) that supports EPT but when trying to run an VM, receive ... > My understanding is that the L5520 does not have support for > "Unrestricted Guest/Real Address Mode" which was introduce with the > release of the Westmere architecture. > Yes, that's correct. > I assume its a non starter without the unrestricted guest feature. > Mostly. You'll only be able to run single vCPU FreeBSD guests since >they boot directly into 64-bit mode: everything else (including multiple >vCPU guests) requires either 16-bit support or 32-bit non-paged >protected mode, both of which are only available on Intel with the >'unrestricted guest' feature. >later, >Peter. Hi Peter,=20 Thank you for the clarification. It looks like I'll need to purchase a coup= le to Westmere X5650 CPU's that do have the 'unregistered guest' feature as= I need to be able to running multi vcpu FreeBSD vms and Windows.=20 Thank you again for your help.=20 Regards James Lodge