From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EF9B0C433EF for ; Fri, 25 Feb 2022 02:24:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236775AbiBYCYo (ORCPT ); Thu, 24 Feb 2022 21:24:44 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46132 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236786AbiBYCYF (ORCPT ); Thu, 24 Feb 2022 21:24:05 -0500 Received: from eu-smtp-delivery-151.mimecast.com (eu-smtp-delivery-151.mimecast.com [185.58.85.151]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 9C02B1C74CA for ; Thu, 24 Feb 2022 18:23:32 -0800 (PST) Received: from AcuMS.aculab.com (156.67.243.121 [156.67.243.121]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id uk-mta-190-2jFGTaVFM_WwuUDWp3xhNw-1; Fri, 25 Feb 2022 02:23:29 +0000 X-MC-Unique: 2jFGTaVFM_WwuUDWp3xhNw-1 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b:0:994c:f5c2:35d6:9b65) by AcuMS.aculab.com (fd9f:af1c:a25b:0:994c:f5c2:35d6:9b65) with Microsoft SMTP Server (TLS) id 15.0.1497.28; Fri, 25 Feb 2022 02:23:27 +0000 Received: from AcuMS.Aculab.com ([fe80::994c:f5c2:35d6:9b65]) by AcuMS.aculab.com ([fe80::994c:f5c2:35d6:9b65%12]) with mapi id 15.00.1497.028; Fri, 25 Feb 2022 02:23:27 +0000 From: David Laight To: 'Dave Hansen' , "Kirill A. Shutemov" , "tglx@linutronix.de" , "mingo@redhat.com" , "bp@alien8.de" , "luto@kernel.org" , "peterz@infradead.org" CC: "sathyanarayanan.kuppuswamy@linux.intel.com" , "aarcange@redhat.com" , "ak@linux.intel.com" , "dan.j.williams@intel.com" , "david@redhat.com" , "hpa@zytor.com" , "jgross@suse.com" , "jmattson@google.com" , "joro@8bytes.org" , "jpoimboe@redhat.com" , "knsathya@kernel.org" , "pbonzini@redhat.com" , "sdeep@vmware.com" , "seanjc@google.com" , "tony.luck@intel.com" , "vkuznets@redhat.com" , "wanpengli@tencent.com" , "thomas.lendacky@amd.com" , "brijesh.singh@amd.com" , "x86@kernel.org" , "linux-kernel@vger.kernel.org" Subject: RE: [PATCHv4 11/30] x86/tdx: Handle in-kernel MMIO Thread-Topic: [PATCHv4 11/30] x86/tdx: Handle in-kernel MMIO Thread-Index: AQHYKbrRB70QltnCv0Of3lK/667WPqyjhr+A Date: Fri, 25 Feb 2022 02:23:27 +0000 Message-ID: <45b6e0b6ceec46849754402c3da03fed@AcuMS.aculab.com> References: <20220224155630.52734-1-kirill.shutemov@linux.intel.com> <20220224155630.52734-12-kirill.shutemov@linux.intel.com> In-Reply-To: Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=C51A453 smtp.mailfrom=david.laight@aculab.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org RnJvbTogRGF2ZSBIYW5zZW4NCj4gU2VudDogMjQgRmVicnVhcnkgMjAyMiAyMDoxMg0KLi4uDQo+ ID09PSBMaW1pdGF0aW9ucyBvZiB0aGlzIGFwcHJvYWNoID09PQ0KPiANCj4gPiBNTUlPIGFkZHJl c3NlcyBjYW4gYmUgdXNlZCB3aXRoIGFueSBDUFUgaW5zdHJ1Y3Rpb24gdGhhdCBhY2Nlc3Nlcw0K PiA+IG1lbW9yeS4gQWRkcmVzcyBvbmx5IE1NSU8gYWNjZXNzZXMgZG9uZSB2aWEgaW8uaCBoZWxw ZXJzLCBzdWNoIGFzDQo+ID4gJ3JlYWRsKCknIG9yICd3cml0ZXEoKScuDQo+IA0KPiBBbnkgQ1BV IGluc3RydWN0aW9uIHRoYXQgYWNjZXNzZXMgbWVtb3J5IGNhbiBhbHNvIGJlIHVzZWQgdG8gYWNj ZXNzDQo+IE1NSU8uICBIb3dldmVyLCBieSBjb252ZW50aW9uLCBNTUlPIGFjY2VzcyBhcmUgdHlw aWNhbGx5IHBlcmZvcm1lZCB2aWENCj4gaW8uaCBoZWxwZXJzIHN1Y2ggYXMgJ3JlYWRsKCknIG9y ICd3cml0ZXEoKScuDQo+IA0KPiA+IHJlYWRYKCkvd3JpdGVYKCkgaGVscGVycyBsaW1pdCB0aGUg cmFuZ2Ugb2YgaW5zdHJ1Y3Rpb25zIHdoaWNoIGNhbiB0cmlnZ2VyDQo+ID4gTU1JTy4gSXQgbWFr ZXMgTU1JTyBpbnN0cnVjdGlvbiBlbXVsYXRpb24gZmVhc2libGUuIFJhdyBhY2Nlc3MgdG8gYSBN TUlPDQo+ID4gcmVnaW9uIGFsbG93cyB0aGUgY29tcGlsZXIgdG8gZ2VuZXJhdGUgd2hhdGV2ZXIg aW5zdHJ1Y3Rpb24gaXQgd2FudHMuDQo+ID4gU3VwcG9ydGluZyBhbGwgcG9zc2libGUgaW5zdHJ1 Y3Rpb25zIGlzIGEgdGFzayBvZiBhIGRpZmZlcmVudCBzY29wZS4NCj4gDQo+IFRoZSBpby5oIGhl bHBlcnMgaW50ZW50aW9uYWxseSB1c2UgYSBsaW1pdGVkIHNldCBvZiBpbnN0cnVjdGlvbnMgd2hl bg0KPiBhY2Nlc3NpbmcgTU1JTy4gIFRoaXMga25vd24sIGxpbWl0ZWQgc2V0IG9mIGluc3RydWN0 aW9ucyBtYWtlcyBNTUlPDQo+IGluc3RydWN0aW9uIGRlY29kaW5nIGFuZCBlbXVsYXRpb24gZmVh c2libGUgaW4gS1ZNIGhvc3RzIGFuZCBTRVYgZ3Vlc3RzDQo+IHRvZGF5Lg0KPiANCj4gTU1JTyBh Y2Nlc3NlcyBhcmUgcGVyZm9ybWVkIHdpdGhvdXQgdGhlIGlvLmggaGVscGVycyBhcmUgYXQgdGhl IG1lcmN5IG9mDQo+IHRoZSBjb21waWxlci4gIENvbXBpbGVycyBjYW4gYW5kIHdpbGwgZ2VuZXJh dGUgYSBtdWNoIG1vcmUgYnJvYWQgc2V0IG9mDQo+IGluc3RydWN0aW9ucyB3aGljaCBjYW4gbm90 IHByYWN0aWNhbGx5IGJlIGRlY29kZWQgYW5kIGVtdWxhdGVkLiAgVERYDQo+IGd1ZXN0cyB3aWxs IG9vcHMgaWYgdGhleSBlbmNvdW50ZXIgb25lIG9mIHRoZXNlIGRlY29kaW5nIGZhaWx1cmVzLg0K PiANCj4gVGhpcyBtZWFucyB0aGF0IFREWCBndWVzdHMgKm11c3QqIHVzZSB0aGUgaW8uaCBoZWxw ZXJzIHRvIGFjY2VzcyBNTUlPLg0KPiANCj4gVGhpcyByZXF1aXJlbWVudCBpcyBub3QgbmV3LiAg Qm90aCBLVk0gaG9zdHMgYW5kIEFNRCBTRVYgZ3Vlc3RzIGhhdmUgdGhlDQo+IHNhbWUgbGltaXRh dGlvbnMgb24gTU1JTyBhY2Nlc3MuDQoNCkFtIEkgcmVhZGluZyB0aGUgbGFzdCBzZW50ZW5jZSBj b3JyZWN0bHk/DQpOb3JtYWxseSAob24geDg2IGF0IGxlYXN0KSBhIGRyaXZlciBjYW4gbW1hcCgp IFBDSWUgYWRkcmVzc2VzIGRpcmVjdGx5DQppbnRvIGEgdXNlciBwcm9jZXNzLg0KVGhpcyBsZXRz IGEgdXNlciBwcm9jZXNzIGRpcmVjdGx5IGlzc3VlIFBDSWUgcmVhZC93cml0ZSBidXMgY3ljbGVz Lg0KVGhlc2UgY2FuIGJlIGFueSBpbnN0cnVjdGlvbnMgYXQgYWxsLg0KSSBkb24ndCB0aGluayB3 ZSd2ZSBoYWQgYW55IGlzc3VlcyBkb2luZyB0aGF0IGluIG5vcm1hbCBWTXMuDQoNCk9yIGlzIHRo aXMgZW11bGF0aW9uIG9ubHkgYXBwbHlpbmcgdG8gc3BlY2lmaWMgUENJZSBzbGF2ZXM/DQoNCglE YXZpZA0KDQotDQpSZWdpc3RlcmVkIEFkZHJlc3MgTGFrZXNpZGUsIEJyYW1sZXkgUm9hZCwgTW91 bnQgRmFybSwgTWlsdG9uIEtleW5lcywgTUsxIDFQVCwgVUsNClJlZ2lzdHJhdGlvbiBObzogMTM5 NzM4NiAoV2FsZXMpDQo=