From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([209.51.188.92]:41721) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gotxE-0003k7-E7 for qemu-devel@nongnu.org; Wed, 30 Jan 2019 12:47:17 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gotxD-0005du-6i for qemu-devel@nongnu.org; Wed, 30 Jan 2019 12:47:16 -0500 Received: from mail-eopbgr820050.outbound.protection.outlook.com ([40.107.82.50]:48640 helo=NAM01-SN1-obe.outbound.protection.outlook.com) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gotxC-0005cv-RD for qemu-devel@nongnu.org; Wed, 30 Jan 2019 12:47:15 -0500 From: "Singh, Brijesh" Date: Wed, 30 Jan 2019 17:47:12 +0000 Message-ID: References: <20190123131042.GF27270@redhat.com> <20190123132212.GA20002@beluga.usersys.redhat.com> <20190123132413.GG27270@redhat.com> <20190123133301.GB20002@beluga.usersys.redhat.com> <20190123133614.GH27270@redhat.com> <25dd3d83-dbf9-5b8d-59d4-79501fe03f3c@amd.com> <20190129161542.GG5315@beluga.usersys.redhat.com> <20190129184008.GM30796@redhat.com> <20190130080630.GI5315@beluga.usersys.redhat.com> <20190130103719.GF15904@redhat.com> <20190130133954.GA30553@beluga.usersys.redhat.com> In-Reply-To: <20190130133954.GA30553@beluga.usersys.redhat.com> Content-Language: en-US Content-Type: text/plain; charset="utf-8" Content-ID: <1476781192EEBE44A911CC662BF7A6AF@namprd12.prod.outlook.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Subject: Re: [Qemu-devel] AMD SEV's /dev/sev permissions and probing QEMU for capabilities List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Erik Skultety , =?utf-8?B?RGFuaWVsIFAuIEJlcnJhbmfDqQ==?= Cc: "Singh, Brijesh" , "libvir-list@redhat.com" , "qemu-devel@nongnu.org" , "dinechin@redhat.com" , "mkletzan@redhat.com" DQoNCk9uIDEvMzAvMTkgNzozOSBBTSwgRXJpayBTa3VsdGV0eSB3cm90ZToNCj4+Pj4gdGhvdWdo LCB3ZSBuZWVkIGEgI2lmZGVmIGNoZWNrIGZvciBleGlzdGFuY2Ugb2YgUFJfQ0FQX0FNQklFTlQN Cj4+Pj4NCj4+Pj4+IEFuIGFsdGVybmF0aXZlIHF1ZXN0aW9uIEkndmUgYmVlbiBwbGF5aW5nIGV2 ZXIgc2luY2Ugd2UgZXhjaGFuZ2VkIHRoZSBsYXN0IGZldw0KPj4+Pj4gZW1haWxzIGlzIHRoYXQg Y2FuJ3Qgd2Ugd2FpdCB1bnRpbCB0aGUgaW9jdGxzIGFyZSBjb21wYXJlZCBhZ2FpbnN0IHBlcm1p c3Npb25zDQo+Pj4+PiBpbiBrZXJuZWwgc28gdGhhdCB1cHN0cmVhbSBsaWJ2aXJ0IChhbmQgZG93 bnN0cmVhbSB0b28gZm9yIHRoYXQgbWF0dGVyKSBkb2Vzbid0DQo+Pj4+PiBoYXZlIHRvIHdvcmsg YXJvdW5kIGl0IGFuZCBzdGljayB3aXRoIHRoYXQgd29ya2Fyb3VuZCBmb3IgZXRlcm5pdHk/DQo+ Pj4+DQo+Pj4+IElJVUMsIHRoZSBTRVYgZmVhdHVyZSBoYXMgYWxyZWFkeSBzaGlwcGVkIHdpdGgg ZGlzdHJvcywgc28gd2UnZCBlZmZlY3RpdmVseQ0KPj4+PiBiZSBzYXlpbmcgdGhhdCB3aGF0IHdl IGFscmVhZHkgc2hpcHBlZCBpcyB1bnVzYWJsZSB0byBsaWJ2aXJ0LiBUaGlzIGRvZXNuJ3QNCj4+ Pj4gZmVlbCBsaWtlIGEgZGVzaXJhYmxlIHN0b3J5IHRvIG1lLg0KPj4+DQo+Pj4gSXQgd2FzLCBi dXQgaXQgbmV2ZXIgd29ya2VkLCBpdCBhbHdheXMgaGFzIGJlZW4gYnJva2VuIGluIHRoaXMgd2F5 LiBXaGVuIHdlDQo+Pj4gd2VyZSBtZXJnaW5nIHRoaXMgdXBzdHJlYW0sIHdlIGhhZCBhIHRlcnJp YmxlIHNob3J0YWdlIG9mIG1hY2hpbmVzIGFuZCB3ZSBoYWQNCj4+PiB0byBzaGFyZSwgc28gdGhl IGZpcnN0IHBlcnNvbiB0byBwcm92aXNpb24gdGhlIG1hY2hpbmUgaGFkIGFscmVhZHkgdGFrZW4g Y2FyZQ0KPj4+IG9mIHRoZSBwZXJtaXNzaW9ucyBpbiBvcmRlciB0byB0ZXN0IHNvIHRoYXQgbGVk IHRvIHRoaXMgaXNzdWUgaGF2aW5nIGJlZW4NCj4+PiBvdmVybG9va2VkIHVudGlsIG5vdy4gSWYg aXQgZXZlciB3b3JrZWQgYXMgZXhwZWN0ZWQgYW5kIHRoZW4gd2UgYnJva2UgaXQsIHRoZW4NCj4+ PiBhbnkgZml4IGZyb20gb3VyIHNpZGUgd291bGQgbWFrZSBzZW5zZSBidXQgb3RoZXJ3aXNlIEkg YmVsaWV2ZSB3ZSBzaG91bGQgZml4DQo+Pj4gdGhpcyBib3R0b20gdXAuDQo+Pg0KPj4gV2VsbCB0 ZWNobmljYWxseSBpdCB3b3VsZCB3b3JrIGlmIGxpYnZpcnQgd2FzIGNvbmZpZ3VyZWQgdG8gcnVu IGFzDQo+PiByb290OnJvb3QsIGJ1dCB5ZXMsIHRoYXQgaXMgbm90IGEgbm9ybWFsIG9yIHJlY29t bWVuZGVkIGNvbmZpZ3VyYXRpb24uDQo+Pg0KPj4gUGVyc29uYWxseSBJIGhhdmUgYSBwcmVmZXJl bmNlIGZvciB1c2Vyc3BhY2Ugc29sdXRpb25zLCBhcyB0aG9zZSBhcmUNCj4+IHByZXR0eSBzdHJh aWdodGZvcndhcmQgdG8gcm9sbCBvdXQgdG8gcGVvcGxlIGFzIHBhdGNoZXMgaW4gZXhpc3RpbmcN Cj4+IHJlbGVhc2VzLiBEZXBsb3lpbmcga2VybmVsIHVwZGF0ZXMgaXMgYSBoaWdoZXIgYmFyIHRv IGNyb3NzIGZvciBhbg0KPj4gZXhpc3RpbmcgcmVsZWFzZS4NCj4gDQo+IFNvLCBjYW4geW91IGNv bXBpbGUgdGhlIHByY3RsIHN0dWZmIGluIGtlcm5lbCBjb25kaXRpb25hbGx5PyBJZiBzbywgdGhl biB0aGF0J3MNCj4gYSBwcm9ibGVtIGJlY2F1c2UgeW91IG1heSBlbmQgdXAgd2l0aCBhIHBsYXRm b3JtIHdoZXJlIFNFViBpcyBzdXBwb3J0ZWQgd2l0aGluDQo+IGtlcm5lbCwgYnV0IHlvdSBkb24n dCBoYXZlIHRoZSBhbWJpZW50IHN0dWZmIHdlIGhhdmUgdG8gY29uZGl0aW9uYWxseSBjb21waWxl DQo+IGluIGxpYnZpcnQsIHNvIHlvdSBlbmQgdXAgd2l0aCBicm9rZW4gU0VWIHN1cHBvcnQgYW55 d2F5LCBJIHdhbnRlZCB0byBhcmd1ZQ0KPiB3aXRoIGNlbnRvcyA3LCBidXQgdGhlIGFtYmllbnQg c2V0IHN1cHBvcnQgd2FzIGJhY2twb3J0ZWQgdG8gMy4xMCwgc28gdGhlIG9ubHkNCj4gZGlzdHJv IHdoZXJlIHdlJ2QgaGF2ZSBhIHByb2JsZW0gZnJvbSB1c2Vyc3BhY2UgUE9WIHdvdWxkIGJlIGRl YmlhbiA4LCBidXQgdGhlbg0KPiBhZ2FpbiB0aGUga2VybmVsIHRoZXJlIGlzIHNvIG9sZCB0aGF0 IG5laXRoZXIgU0VWIGlzIHN1cHBvcnRlZCB0aGVyZS4NCj4gDQoNCg0KQXJlIHlvdSByZWZlcnJp bmcgdG8gcHJjdGwgc3lzY2FsbCA/IElmIHNvLCBJIGRvbid0IHRoaW5rIHlvdSBjYW4NCmNvbmRp dGlvbmFsbHkgY29tcGlsZSBpdCBvdXQuIEl0IHdpbGwgYmUgYWx3YXlzIHRoZXJlLiBJZiBnZXR0 aW5nIHRoZQ0KbGlidmlydCAgdG8gcnVuIGFzIHJvb3Q6cm9vdCBkdXJpbmcgdGhlIHByb2JlIGlz IGN1bWJlcnNvbWUgYW5kDQpjYXVzaW5nIHRoZSBiYWNrd2FyZCBjb21wYXRpYmlsaXR5IGlzc3Vl cyB0aGVuIEkgZ3Vlc3Mgd2UgY2FuIG1ha2UNCi9kZXYvc2V2IDA2NDQuIFRoZSAwNjQ0IHdpbGwg bm90IGNyZWF0ZSBhbnkgc2VjdXJpdHkgdnVsbmVyYWJpbGl0eSBwZXINCnNheS4gSXQgbWF5IGV4 cG9zZSB1cyB0byBhIERvUyBhdHRhY2suIGUuZyBhIG5vcm1hbCB1c2VyIGNhbg0Kb3BlbiAvZGV2 L3NldiBhbmQgaXNzdWUgY29tbWFuZHMgdG8gaW1wb3J0IG5ldyBjZXJ0aWZpY2F0ZXMgYW5kIGZp bGwgdGhlDQpzdG9yYWdlIHF1aWNrbHkgZXRjLiBJbiBsb25nIHJ1biBJIGRvIHdhbnQgdG8gcGF0 Y2gga2VybmVsIHNvIHRoYXQgYQ0KdXNlciB3aXRob3V0ICJ3cml0ZSIgYWNjZXNzIHdpbGwgbm90 IGFibGUgdG8gaXNzdWUgYW55IGNvbW1hbmQgd2hpY2gNCndpbGwgY2F1c2UgdGhlIEZXIHRvIGRv IHNvbWUgZmxhc2ggd3JpdGVzLg0KDQpJbiBzdW1tYXJ5LCBJIGFtIGFnYWluc3QgbWFraW5nIC9k ZXYvc2V2IDA2NDQgaWYgaXRzIHNpbXBsaWZpZXMgdGhlDQppbnRlZ3JhdGluZyBpbiBsaWJ2aXJ0 Lg0KDQoNCj4gSSB1bmRlcnN0YW5kIHlvdXIgcG9pbnQsIGJ1dCBpdCBhbHNvIHNvdW5kcyB2ZXJ5 IGFnaWxlIGFuZCBJIGRvbid0IHRoaW5rIHRoYXQNCj4gY29tcGVuc2F0aW5nIHdpdGggInNvbWV0 aGluZyB0aGF0IGlzIGZhc3QiIGZvciAic29tZXRoaW5nIHRoYXQgaXMgcmlnaHQiIGlzIHRoZQ0K PiB3YXkgdG8gZ28gaW4gdGhlIGxvbmcgdGVybS4gRXNwZWNpYWxseSBzaW5jZSB3ZSBhbG1vc3Qg bmV2ZXIgZGVwcmVjYXRlIHN0dWZmDQo+IGFuZCB3ZSBjYW4ndCBicmVhayBjb21wYXRpYmlsaXR5 LiBUcnlpbmcgdG8gd29yayBhcm91bmQgZXZlcnkgaXNzdWUgY29taW5nDQo+IGZyb20geW91ciBk ZXBlbmRlbmNpZXMgaW4geW91ciBwcm9qZWN0IGlzIGhpZ2hseSB1bnN1c3RhaW5hYmxlLg0KPiAN Cg==