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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 22525C433F5 for ; Mon, 27 Sep 2021 13:46:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0913060F39 for ; Mon, 27 Sep 2021 13:46:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234114AbhI0NsP (ORCPT ); Mon, 27 Sep 2021 09:48:15 -0400 Received: from frasgout.his.huawei.com ([185.176.79.56]:3881 "EHLO frasgout.his.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234365AbhI0NsM (ORCPT ); Mon, 27 Sep 2021 09:48:12 -0400 Received: from fraeml702-chm.china.huawei.com (unknown [172.18.147.200]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4HJ3kV5c1Wz67Zx5; Mon, 27 Sep 2021 21:43:30 +0800 (CST) Received: from lhreml711-chm.china.huawei.com (10.201.108.62) by fraeml702-chm.china.huawei.com (10.206.15.51) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.8; Mon, 27 Sep 2021 15:46:32 +0200 Received: from lhreml710-chm.china.huawei.com (10.201.108.61) by lhreml711-chm.china.huawei.com (10.201.108.62) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.8; Mon, 27 Sep 2021 14:46:32 +0100 Received: from lhreml710-chm.china.huawei.com ([169.254.81.184]) by lhreml710-chm.china.huawei.com ([169.254.81.184]) with mapi id 15.01.2308.008; Mon, 27 Sep 2021 14:46:32 +0100 From: Shameerali Kolothum Thodi To: Jason Gunthorpe CC: "kvm@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-crypto@vger.kernel.org" , "alex.williamson@redhat.com" , "mgurtovoy@nvidia.com" , liulongfang , "Zengtao (B)" , "Jonathan Cameron" , "Wangzhou (B)" Subject: RE: [PATCH v3 6/6] hisi_acc_vfio_pci: Add support for VFIO live migration Thread-Topic: [PATCH v3 6/6] hisi_acc_vfio_pci: Add support for VFIO live migration Thread-Index: AQHXqhdQM13RiELH60aUjxjG41fnUKulAGMAgAAGK3CAAZpfgIARVJdw Date: Mon, 27 Sep 2021 13:46:31 +0000 Message-ID: References: <20210915095037.1149-1-shameerali.kolothum.thodi@huawei.com> <20210915095037.1149-7-shameerali.kolothum.thodi@huawei.com> <20210915130742.GJ4065468@nvidia.com> <20210916135833.GB327412@nvidia.com> In-Reply-To: <20210916135833.GB327412@nvidia.com> Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.47.80.194] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org DQoNCj4gLS0tLS1PcmlnaW5hbCBNZXNzYWdlLS0tLS0NCj4gRnJvbTogSmFzb24gR3VudGhvcnBl IFttYWlsdG86amdnQG52aWRpYS5jb21dDQo+IFNlbnQ6IDE2IFNlcHRlbWJlciAyMDIxIDE0OjU5 DQo+IFRvOiBTaGFtZWVyYWxpIEtvbG90aHVtIFRob2RpIDxzaGFtZWVyYWxpLmtvbG90aHVtLnRo b2RpQGh1YXdlaS5jb20+DQo+IENjOiBrdm1Admdlci5rZXJuZWwub3JnOyBsaW51eC1rZXJuZWxA dmdlci5rZXJuZWwub3JnOw0KPiBsaW51eC1jcnlwdG9Admdlci5rZXJuZWwub3JnOyBhbGV4Lndp bGxpYW1zb25AcmVkaGF0LmNvbTsNCj4gbWd1cnRvdm95QG52aWRpYS5jb207IGxpdWxvbmdmYW5n IDxsaXVsb25nZmFuZ0BodWF3ZWkuY29tPjsgWmVuZ3RhbyAoQikNCj4gPHByaW1lLnplbmdAaGlz aWxpY29uLmNvbT47IEpvbmF0aGFuIENhbWVyb24NCj4gPGpvbmF0aGFuLmNhbWVyb25AaHVhd2Vp LmNvbT47IFdhbmd6aG91IChCKSA8d2FuZ3pob3UxQGhpc2lsaWNvbi5jb20+DQo+IFN1YmplY3Q6 IFJlOiBbUEFUQ0ggdjMgNi82XSBoaXNpX2FjY192ZmlvX3BjaTogQWRkIHN1cHBvcnQgZm9yIFZG SU8gbGl2ZQ0KPiBtaWdyYXRpb24NCj4gDQo+IE9uIFdlZCwgU2VwIDE1LCAyMDIxIGF0IDAxOjI4 OjQ3UE0gKzAwMDAsIFNoYW1lZXJhbGkgS29sb3RodW0gVGhvZGkNCj4gd3JvdGU6DQo+ID4NCj4g Pg0KPiA+ID4gRnJvbTogSmFzb24gR3VudGhvcnBlIFttYWlsdG86amdnQG52aWRpYS5jb21dDQo+ ID4gPiBTZW50OiAxNSBTZXB0ZW1iZXIgMjAyMSAxNDowOA0KPiA+ID4gVG86IFNoYW1lZXJhbGkg S29sb3RodW0gVGhvZGkNCj4gPHNoYW1lZXJhbGkua29sb3RodW0udGhvZGlAaHVhd2VpLmNvbT4N Cj4gPiA+IENjOiBrdm1Admdlci5rZXJuZWwub3JnOyBsaW51eC1rZXJuZWxAdmdlci5rZXJuZWwu b3JnOw0KPiA+ID4gbGludXgtY3J5cHRvQHZnZXIua2VybmVsLm9yZzsgYWxleC53aWxsaWFtc29u QHJlZGhhdC5jb207DQo+ID4gPiBtZ3VydG92b3lAbnZpZGlhLmNvbTsgTGludXhhcm0gPGxpbnV4 YXJtQGh1YXdlaS5jb20+OyBsaXVsb25nZmFuZw0KPiA+ID4gPGxpdWxvbmdmYW5nQGh1YXdlaS5j b20+OyBaZW5ndGFvIChCKSA8cHJpbWUuemVuZ0BoaXNpbGljb24uY29tPjsNCj4gPiA+IEpvbmF0 aGFuIENhbWVyb24gPGpvbmF0aGFuLmNhbWVyb25AaHVhd2VpLmNvbT47IFdhbmd6aG91IChCKQ0K PiA+ID4gPHdhbmd6aG91MUBoaXNpbGljb24uY29tPg0KPiA+ID4gU3ViamVjdDogUmU6IFtQQVRD SCB2MyA2LzZdIGhpc2lfYWNjX3ZmaW9fcGNpOiBBZGQgc3VwcG9ydCBmb3IgVkZJTyBsaXZlDQo+ ID4gPiBtaWdyYXRpb24NCj4gPiA+DQo+ID4gPiBPbiBXZWQsIFNlcCAxNSwgMjAyMSBhdCAxMDo1 MDozN0FNICswMTAwLCBTaGFtZWVyIEtvbG90aHVtIHdyb3RlOg0KPiA+ID4gPiArLyoNCj4gPiA+ ID4gKyAqIEhpU2lsaWNvbiBBQ0MgVkYgZGV2wqBNTUlPIHNwYWNlIGNvbnRhaW5zIGJvdGggdGhl IGZ1bmN0aW9uYWwNCj4gcmVnaXN0ZXINCj4gPiA+ID4gKyAqIHNwYWNlwqBhbmQgdGhlIG1pZ3Jh dGlvbiBjb250cm9sIHJlZ2lzdGVyIHNwYWNlLiBXZSBoaWRlIHRoZQ0KPiBtaWdyYXRpb24NCj4g PiA+ID4gKyAqIGNvbnRyb2wgc3BhY2XCoGZyb20gdGhlIEd1ZXN0LiBCdXQgdG8gc3VjY2Vzc2Z1 bGx5IGNvbXBsZXRlIHRoZSBsaXZlDQo+ID4gPiA+ICsgKiBtaWdyYXRpb24sIHdlIHN0aWxsIG5l ZWQgYWNjZXNzIHRvIHRoZSBmdW5jdGlvbmFsIE1NSU8gc3BhY2UgYXNzaWduZWQNCj4gPiA+ID4g KyAqIHRvIHRoZSBHdWVzdC4gVG8gYXZvaWQgYW55IHBvdGVudGlhbCBzZWN1cml0eSBpc3N1ZXMs IHdlIG5lZWQgdG8gYmUNCj4gPiA+ID4gKyAqIGNhcmVmdWwgbm90IHRvIGFjY2VzcyB0aGlzIHJl Z2lvbiB3aGlsZSB0aGUgR3Vlc3QgdkNQVXMgYXJlIHJ1bm5pbmcuDQo+ID4gPiA+ICsgKg0KPiA+ ID4gPiArICogSGVuY2UgY2hlY2sgdGhlIGRldmljZSBzdGF0ZSBiZWZvcmUgd2UgbWFwIHRoZSBy ZWdpb24uDQo+ID4gPiA+ICsgKi8NCj4gPiA+DQo+ID4gPiBUaGUgcHJpb3IgcGF0Y2ggcHJldmVu dHMgbWFwcGluZyB0aGlzIGFyZWEgaW50byB0aGUgZ3Vlc3QgYXQgYWxsLA0KPiA+ID4gcmlnaHQ/ DQo+ID4NCj4gPiBUaGF04oCZcyByaWdodC4gSXQgd2lsbCBwcmV2ZW50IEd1ZXN0IGZyb20gbWFw cGluZyB0aGlzIGFyZWEuDQo+ID4NCj4gPiA+IFNvIHdoeSB0aGUgY29tbWVudCBhbmQgbG9naWM/ IElmIHRoZSBNTUlPIGFyZWEgaXNuJ3QgbWFwcGVkIHRoZW4gdGhlcmUNCj4gPiA+IGlzIG5vdGhp bmcgdG8gZG8sIHJpZ2h0Pw0KPiA+ID4NCj4gPiA+IFRoZSBvbmx5IHJpc2sgaXMgUDJQIHRyYW5z YWN0aW9ucyBmcm9tIGRldmljZXMgaW4gdGhlIHNhbWUgSU9NTVUNCj4gPiA+IGdyb3VwLCBhbmQg eW91IG1pZ2h0IGRvIHdlbGwgdG8gbWl0aWdhdGUgdGhhdCBieSBhc3NlcnRpbmcgdGhhdCB0aGUN Cj4gPiA+IGRldmljZSBpcyBpbiBhIHNpbmdsZXRvbiBJT01NVSBncm91cD8NCj4gPg0KPiA+IFRo aXMgd2FzIGFkZGVkIGFzIGFuIGV4dHJhIHByb3RlY3Rpb24uIEkgd2lsbCBhZGQgdGhlIHNpbmds ZXRvbiBjaGVjayBpbnN0ZWFkLg0KPiA+DQo+ID4gPiA+ICtzdGF0aWMgaW50IGhpc2lfYWNjX3Zm aW9fcGNpX2luaXQoc3RydWN0IHZmaW9fcGNpX2NvcmVfZGV2aWNlICp2ZGV2KQ0KPiA+ID4gPiAr ew0KPiA+ID4gPiArCXN0cnVjdCBhY2NfdmZfbWlncmF0aW9uICphY2NfdmZfZGV2Ow0KPiA+ID4g PiArCXN0cnVjdCBwY2lfZGV2ICpwZGV2ID0gdmRldi0+cGRldjsNCj4gPiA+ID4gKwlzdHJ1Y3Qg cGNpX2RldiAqcGZfZGV2LCAqdmZfZGV2Ow0KPiA+ID4gPiArCXN0cnVjdCBoaXNpX3FtICpwZl9x bTsNCj4gPiA+ID4gKwlpbnQgdmZfaWQsIHJldDsNCj4gPiA+ID4gKw0KPiA+ID4gPiArCXBmX2Rl diA9IHBkZXYtPnBoeXNmbjsNCj4gPiA+ID4gKwl2Zl9kZXYgPSBwZGV2Ow0KPiA+ID4gPiArDQo+ ID4gPiA+ICsJcGZfcW0gPSBwY2lfZ2V0X2RydmRhdGEocGZfZGV2KTsNCj4gPiA+ID4gKwlpZiAo IXBmX3FtKSB7DQo+ID4gPiA+ICsJCXByX2VycigiSGlTaSBBQ0MgcW0gZHJpdmVyIG5vdCBsb2Fk ZWRcbiIpOw0KPiA+ID4gPiArCQlyZXR1cm4gLUVJTlZBTDsNCj4gPiA+ID4gKwl9DQo+ID4gPg0K PiA+ID4gTm9wZSwgdGhpcyBpcyBsb2NrZWQgd3JvbmcgYW5kIGhhcyBubyBsaWZldGltZSBtYW5h Z2VtZW50Lg0KPiA+DQo+ID4gT2suIEhvbGRpbmcgdGhlIGRldmljZV9sb2NrKCkgc3VmZmljaWVu dCBoZXJlPw0KPiANCj4gWW91IGNhbid0IGhvbGQgYSBoaXNpX3FtIHBvaW50ZXIgd2l0aCBzb21l IGtpbmQgb2YgbGlmZWN5Y2xlDQo+IG1hbmFnZW1lbnQgb2YgdGhhdCBwb2ludGVyLiBkZXZpY2Vf bG9jay9ldGMgaXMgbmVjZXNzYXJ5IHRvIGNhbGwNCj4gcGNpX2dldF9kcnZkYXRhKCkNCg0KU2lu Y2UgdGhpcyBtaWdyYXRpb24gZHJpdmVyIG9ubHkgc3VwcG9ydHMgVkYgZGV2aWNlcyBhbmQgdGhl IFBGDQpkcml2ZXIgd2lsbCBub3QgYmUgcmVtb3ZlZCB1bnRpbCBhbGwgdGhlIFZGIGRldmljZXMg Z2V0cyByZW1vdmVkLA0KaXMgdGhlIGxvY2tpbmcgbmVjZXNzYXJ5IGhlcmU/DQoNClRoZSBmbG93 IGZyb20gUEYgZHJpdmVyIHJlbW92ZSgpIHBhdGggaXMgc29tZXRoaW5nIGxpa2UgdGhpcywNCg0K aWYgKHFtLT5mdW5fdHlwZSA9PSBRTV9IV19QRiAmJiBxbS0+dmZzX251bSkNCgkJaGlzaV9xbV9z cmlvdl9kaXNhYmxlKHBkZXYsIHRydWUpOw0KICAgICAgICAgIHBjaV9kaXNhYmxlX3NyaW92KHBk ZXYpLg0KDQpUaGFua3MsDQpTaGFtZWVyDQoNCg0K