Received: by 2002:a05:6358:3188:b0:123:57c1:9b43 with SMTP id q8csp2514403rwd; Fri, 26 May 2023 07:32:45 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ7bQqd+ca7SiwkgU8/GMUId1tjl0UOp1nCIazBlaO1IvB8qVsk8xabXLUrUGOJ22d8//DJe X-Received: by 2002:a05:6a20:441e:b0:10f:32ec:aa20 with SMTP id ce30-20020a056a20441e00b0010f32ecaa20mr2671952pzb.32.1685111564868; Fri, 26 May 2023 07:32:44 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1685111564; cv=none; d=google.com; s=arc-20160816; b=Ljwdjcb8LUbIMcTqLhdhzMtUSL5DNlwpopEPQJFu5oFwUFBx4daLotaELWeE7qt6dq xSx6djn+8MGMIHV8yf2Ej65jT0mJNoezZoRfBN/Z/1iJtLooBB77NWi1jh7FyA5/uW6x 6R9jqYXV8IBPLY9iEO/yYpSWO3x81lxcZXWs4qodrhucM8isEtHCqFrwXafB8qlrS6J1 4YmbBhfAqV8Pphke4ROLhrQ0HqZyqlDCpH3iA8NXoyy4szyIY0/eUW0GO1fIUVQNE3AR s/jSpAT7zefFC5JgYBhm1mqwxaGI6ChP3SjRMMQ9M01BH7k9QoEQ7wRgiONEDZU+/BSt MHJw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:mime-version:content-transfer-encoding :content-id:content-language:accept-language:in-reply-to:references :message-id:date:thread-index:thread-topic:subject:cc:to:from :dkim-signature; bh=oBqZOBHuiqIEWF5UrD9YR5/Y0jvlkS5A+MMqZPCEAqs=; b=y+rsfWijP/zE1jkuM1iM2apv4MkAHYknvFn34hnvhthJ6gMf+fLPwlAAo2TZMamEmX I9QflJktbBaOmio/aPDPMqz27QFx8yqxYfOdrlfNiilGKxQShlgBUAyWfSZ376dB/PaL tWHsn+pAy0jK8vMN2t4BDzxRUW/U286VjW27uYsCWnQ+Oi98CmgGWeTn90sditFvUccm h36Qx9fWGIpub7vSHQ4PHxjedoqepG6Bex0mUP9bLhb8qjeWRAPxhi2ovqAaDBW0pbN0 GIOEAFIRGf8F6Xdeb6Sfvfr2o6XIWvlj+sXyFZK9BSWz/J8cLOCHdxZfmPJYh7zm5479 EDHA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@amazon.com header.s=amazon201209 header.b="MvRFh8/E"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=amazon.com Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id b19-20020a639313000000b0053f23ffad1csi4036462pge.544.2023.05.26.07.32.29; Fri, 26 May 2023 07:32:44 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@amazon.com header.s=amazon201209 header.b="MvRFh8/E"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=amazon.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237295AbjEZN5a (ORCPT + 99 others); Fri, 26 May 2023 09:57:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44456 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229537AbjEZN53 (ORCPT ); Fri, 26 May 2023 09:57:29 -0400 Received: from smtp-fw-6002.amazon.com (smtp-fw-6002.amazon.com [52.95.49.90]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3AE1DDF for ; Fri, 26 May 2023 06:57:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazon201209; t=1685109447; x=1716645447; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-id:content-transfer-encoding: mime-version; bh=oBqZOBHuiqIEWF5UrD9YR5/Y0jvlkS5A+MMqZPCEAqs=; b=MvRFh8/EV9b2cbpToHaeXoH7jYwrhCnEsPCrJIa8rsAt/gl7sO7QJkQR bLXsYNKasNT+c3cBMBENHBIyz7oLk9YGQbhPVmZNigj03ROZYjGWtSF3l S7v+3iCMuMhRevJDCTdxbNwaqg59ittOX/13LkJ9GDqFqYnYWFVPBAzNs U=; X-IronPort-AV: E=Sophos;i="6.00,194,1681171200"; d="scan'208";a="333831818" Received: from iad12-co-svc-p1-lb1-vlan3.amazon.com (HELO email-inbound-relay-pdx-2b-m6i4x-f253a3a3.us-west-2.amazon.com) ([10.43.8.6]) by smtp-border-fw-6002.iad6.amazon.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 May 2023 13:57:22 +0000 Received: from EX19MTAUEA001.ant.amazon.com (pdx1-ws-svc-p6-lb9-vlan3.pdx.amazon.com [10.236.137.198]) by email-inbound-relay-pdx-2b-m6i4x-f253a3a3.us-west-2.amazon.com (Postfix) with ESMTPS id 845CE8064D; Fri, 26 May 2023 13:57:20 +0000 (UTC) Received: from EX19D008UEC001.ant.amazon.com (10.252.135.232) by EX19MTAUEA001.ant.amazon.com (10.252.134.203) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Fri, 26 May 2023 13:57:20 +0000 Received: from EX19D014EUC004.ant.amazon.com (10.252.51.182) by EX19D008UEC001.ant.amazon.com (10.252.135.232) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Fri, 26 May 2023 13:57:19 +0000 Received: from EX19D014EUC004.ant.amazon.com ([fe80::76dd:4020:4ff2:1e41]) by EX19D014EUC004.ant.amazon.com ([fe80::76dd:4020:4ff2:1e41%3]) with mapi id 15.02.1118.026; Fri, 26 May 2023 13:57:18 +0000 From: "Gowans, James" To: "linux-mm@kvack.org" , "anthony.yznaga@oracle.com" , "linux-kernel@vger.kernel.org" CC: "kexec@lists.infradead.org" , "jason.zeng@intel.com" , "keescook@chromium.org" , "lei.l.li@intel.com" , "luto@kernel.org" , "rppt@kernel.org" , "dave.hansen@linux.intel.com" , "steven.sistare@oracle.com" , "Graf (AWS), Alexander" , "akpm@linux-foundation.org" , "mgalaxy@akamai.com" , "mingo@redhat.com" , "fam.zheng@bytedance.com" , "Woodhouse, David" , "tglx@linutronix.de" , "yuleixzhang@tencent.com" , "ebiederm@xmission.com" , "hpa@zytor.com" , "peterz@infradead.org" , "bp@alien8.de" , "x86@kernel.org" Subject: Re: [RFC v3 00/21] Preserved-over-Kexec RAM Thread-Topic: [RFC v3 00/21] Preserved-over-Kexec RAM Thread-Index: AQHZfMp2lJg8EKfTcU+6dylzOaNCcq9sul0A Date: Fri, 26 May 2023 13:57:18 +0000 Message-ID: References: <1682554137-13938-1-git-send-email-anthony.yznaga@oracle.com> In-Reply-To: <1682554137-13938-1-git-send-email-anthony.yznaga@oracle.com> Accept-Language: en-ZA, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.146.13.223] Content-Type: text/plain; charset="utf-8" Content-ID: <1652FBAFA9EDC04894CB1A78E19DF4F0@amazon.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_NONE,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org T24gV2VkLCAyMDIzLTA0LTI2IGF0IDE3OjA4IC0wNzAwLCBBbnRob255IFl6bmFnYSB3cm90ZToN Cj4gU2VuZGluZyBvdXQgdGhpcyBSRkMgaW4gcGFydCB0byBndWFnZSBjb21tdW5pdHkgaW50ZXJl c3QuDQo+IFRoaXMgcGF0Y2hzZXQgaW1wbGVtZW50cyBwcmVzZXJ2ZWQtb3Zlci1rZXhlYyBtZW1v cnkgc3RvcmFnZSBvciBQS1JBTSBhcyBhDQo+IG1ldGhvZCBmb3Igc2F2aW5nIG1lbW9yeSBwYWdl cyBvZiB0aGUgY3VycmVudGx5IGV4ZWN1dGluZyBrZXJuZWwgc28gdGhhdA0KPiB0aGV5IG1heSBi ZSByZXN0b3JlZCBhZnRlciBrZXhlYyBpbnRvIGEgbmV3IGtlcm5lbC4gVGhlIHBhdGNoZXMgYXJl IGFkYXB0ZWQNCj4gZnJvbSBhbiBSRkMgcGF0Y2hzZXQgc2VudCBvdXQgaW4gMjAxMyBieSBWbGFk aW1pciBEYXZ5ZG92IFsxXS4gVGhleQ0KPiBpbnRyb2R1Y2UgdGhlIFBLUkFNIGtlcm5lbCBBUEku DQo+IA0KPiBPbmUgdXNlIGNhc2UgZm9yIFBLUkFNIGlzIHByZXNlcnZpbmcgZ3Vlc3QgbWVtb3J5 IGFuZC9vciBhdXhpbGxhcnkNCj4gc3VwcG9ydGluZyBkYXRhIChlLmcuIGlvbW11IGRhdGEpIGFj cm9zcyBrZXhlYyB0byBzdXBwb3J0IHJlYm9vdCBvZiB0aGUNCj4gaG9zdCB3aXRoIG1pbmltYWwg ZGlzcnVwdGlvbiB0byB0aGUgZ3Vlc3QuDQoNCkhpIEFudGhvbnksDQoNClRoYW5rcyBmb3IgcmUt cG9zdGluZyB0aGlzIC0gSSdtIGJlZW4gd2FudGluZyB0byByZS1raW5kbGUgdGhlIGRpc2N1c3Np b24NCm9uIHByZXNlcnZpbmcgbWVtb3J5IGFjcm9zcyBrZXhlYyBmb3IgYSB3aGlsZSBub3cuDQoN ClRoZXJlIGFyZSBhIGZldyBhc3BlY3RzIGF0IHBsYXkgaW4gdGhpcyBzcGFjZSBvZiBtZW1vcnkg bWFuYWdlbWVudA0KZGVzaWduZWQgc3BlY2lmaWNhbGx5IGZvciB0aGUgdmlydHVhbGlzYXRpb24g YW5kIGxpdmUgdXBkYXRlIChrZXhlYykgdXNlLQ0KY2FzZSB3aGljaCBJIHRoaW5rIHdlIHNob3Vs ZCBjb25zaWRlcjoNCg0KMS4gUHJlc2VydmluZyB1c2Vyc3BhY2UtYWNjZXNzaWJsZSBtZW1vcnkg YWNyb3NzIGtleGVjOiB0aGlzIGlzIHdoYXQgcGtyYW0NCmFkZHJlc3Nlcy4NCg0KMi4gUHJlc2Vy dmluZyBrZXJuZWwgc3RhdGU6IFRoaXMgd291bGQgaW5jbHVkZSBtZW1vcnkgcmVxdWlyZWQgZm9y IGtleGVjDQp3aXRoIERNQSBwYXNzdGhyb3VnaCBkZXZpY2VzLCBsaWtlIElPTU1VIHJvb3QgcGFn ZSBhbmQgcGFnZSB0YWJsZXMsIERNQS0NCmFibGUgYnVmZmVycyBmb3IgZHJpdmVycywgZXRjLiBB bHNvIGNlcnRhaW4gc3RydWN0dXJlcyBmb3IgaW1wcm92ZWQga2VybmVsDQpib290IHBlcmZvcm1h bmNlIGFmdGVyIGtleGVjLCBsaWtlIGEgUENJIGRldmljZSBjYWNoZSwgY2xvY2sgTFBKIGFuZA0K cG9zc2libGUgb3RoZXJzLCBzb3J0IG9mIHdoYXQgWGVuIGJyZWFkY3J1bWJzIFswXSBhY2hpZXZl cy4gVGhlIHBrcmFtIFJGQw0KaW5kaWNhdGVzIHRoYXQgdGhpcyBzaG91bGQgYmUgcG9zc2libGUs IHRob3VnaCBJTU8gdGhpcyBjb3VsZCBiZSBtb3JlDQpzdHJhaWdodCBmb3J3YXJkIHRvIGRvIHdp dGggYSBuZXcgZmlsZXN5c3RlbSB3aXRoIGZpcnN0LWNsYXNzIHN1cHBvcnQgZm9yDQprZXJuZWwg cGVyc2lzdGVuY2UgdmlhIHNvbWV0aGluZyBsaWtlIGlub2RlIHR5cGVzIGZvciBrZXJuZWwgZGF0 YS4NCg0KMy4gRW5zdXJpbmcgaHVnZS9naWdhbnRpYyBtZW1vcnkgYWxsb2NhdGlvbnM6IHRvIGlt cHJvdmUgdGhlIFRMQiBwZXJmIG9mDQoyLXN0YWdlIHRyYW5zbGF0aW9ucyBpdCdzIGJlbmVmaWNp YWwgdG8gYWxsb2NhdGUgZ3Vlc3QgbWVtb3J5IGluIGxhcmdlDQpjb250aWd1b3VzIGJsb2Nrcywg cHJlZmVyYWJseSBQVUQtbGV2ZWwgYmxvY2tzIGZvciBtdWx0aS1HaUIgZ3Vlc3RzLiBJZg0KdGhl IGJ1ZGR5IGFsbG9jYXRvciBpcyB1c2VkIHRoaXMgbWF5IGJlIGEgY2hhbGxlbmdlIGJvdGggZnJv bSBhbg0KaW1wbGVtZW50YXRpb24gYW5kIGEgZnJhZ21lbnRhdGlvbiBwZXJzcGVjdGl2ZSwgYW5k IGl0IG1heSBiZSBkZXNpcmFibGUgdG8NCmhhdmUgc3Ryb25nZXIgZ3VhcmFudGVlcyBhYm91dCBh bGxvY2F0aW9uIHNpemVzLg0KDQo0LiBSZW1vdmluZyBzdHJ1Y3QgcGFnZSBvdmVyaGVhZDogV2hl biBkb2luZyB0aGUgaHVnZS9naWdhbnRpYw0KYWxsb2NhdGlvbnMsIGluIGdlbmVyYWxseSBpdCB3 b24ndCBiZSBuZWNlc3NhcnkgdG8gaGF2ZSA0IEtpQiBzdHJ1Y3QNCnBhZ2VzLiBUaGlzIGlzIHNv bWV0aGluZyB3aXRoIGRtZW1mcyBbMSwgMl0gdHJpZXMgdG8gYWNoaWV2ZSBieSB1c2luZyBhDQps YXJnZSBjaHVuayBvZiByZXNlcnZlZCBtZW1vcnkgYW5kIG1hbmFnaW5nIHRoYXQgYnkgYSBuZXcg ZmlsZXN5c3RlbS4NCg0KNS4gTW9yZSAiYWR2YW5jZWQiIG1lbW9yeSBtYW5hZ2VtZW50IEFQSXMv aW9jdGxzIGZvciB2aXJ0dWFsaXNhdGlvbjogQmVpbmcNCmFibGUgdG8gc3VwcG9ydCB0aGluZ3Mg bGlrZSBETUEtZHJpdmVuIHBvc3QtY29weSBsaXZlIG1pZ3JhdGlvbiwgbWVtb3J5DQpvdmVyc3Vi c2NyaXB0aW9uLCBjYXJ2aW5nIG91dCBjaHVua3Mgb2YgbWVtb3J5IGZyb20gYSBWTSB0byBsYXVu Y2ggc2lkZS0NCmNhciBWTXMsIG1vcmUgZmluZS1ncmFpbiBjb250cm9sIG9mIElPTU1VIG9yIE1N VSBwZXJtaXNzaW9ucywgZXRjLiBUaGlzDQptYXkgYmUgZWFzaWVyIHRvIGFjaGlldmUgd2l0aCBh IG5ldyBmaWxlc3lzdGVtLCByYXRoZXIgdGhhbiBjb3VwbGluZyB0bw0KdGVtcGZzIHNlbWFudGlj cyBhbmQgaW9jdGxzLg0KDQpPdmVyYWxsLCB3aXRoIHRoZSBhYm92ZSBpbiBtaW5kLCBteSB0YWtl IGlzIHRoYXQgd2UgbWF5IGhhdmUgYSBzbW9vdGhlcg0KcGF0aCB0byBpbXBsZW1lbnQgYSBtb3Jl IGNvbXByZWhlbnNpdmUgc29sdXRpb24gYnkgZ29pbmcgdGhlIHJvdXRlIG9mIGENCm5ldyBwdXJw b3NlLWJ1aWx0IGZpbGUgc3lzdGVtIG9uIHRvcCBvZiByZXNlcnZlZCBtZW1vcnkuIFNvcnQgb2Yg bGlrZQ0KZG1lbWZzIHdpdGggcGVyc2lzdGVuY2UgYW5kIHNwZWNpZmljYWxseSBzdXBwb3J0IGZv ciBrZXJuZWwgcGVyc2lzdGVuY2UuDQoNCkRvZXMgbXkgdGFrZSBoZXJlIG1ha2Ugc2Vuc2U/DQoN CkknbSBob3BpbmcgdG8gcHV0IHRvZ2V0aGVyIGFuIFJGQyBmb3Igc29tZXRoaW5nIGxpa2UgdGhl IGFib3ZlIChkbWVtZnMNCndpdGggcGVyc2lzdGVuY2UpIHNvb24sIGZvY3VzaW5nIG9uIGhvdyB0 aGUgSU9NTVUgcGVyc2lzdGVuY2Ugd2lsbCB3b3JrLg0KVGhpcyBpcyBhbiBpbXBvcnRhbnQgZGlm ZmVyZW50aWF0aW5nIGZhY3RvciB0byBjb3ZlciBpbiB0aGUgUkZDLCBJTU8uDQoNCj4gUEtSQU0g cHJvdmlkZXMgYSBmbGV4aWJsZSB3YXkNCj4gZm9yIGRvaW5nIHRoaXMgd2l0aG91dCByZXF1aXJp bmcgdGhhdCB0aGUgYW1vdW50IG9mIG1lbW9yeSB1c2VkIGJ5IGEgZml4ZWQNCj4gc2l6ZSBjcmVh dGVkIGEgcHJpb3IuDQoNCkFGQUlDVCB0aGUgbWFpbiBkb3duLXNpZGUgb2Ygd2hhdCBJJ20gc3Vn Z2VzdGluZyBoZXJlIGNvbXBhcmVkIHRvIHBrcmFtLA0KaXMgdGhhdCBhcyB5b3Ugc2F5IGhlcmU6 IHBrcmFtIGRvZXNuJ3QgcmVxdWlyZSB0aGUgdXAtZnJvbnQgcmVzZXJ2aW5nIG9mDQptZW1vcnkg LSBhbGxvY2F0aW9ucyBmcm9tIHRoZSBnbG9iYWwgc2hhcmVkIHBvb2wgYXJlIGR5bmFtaWMuIEkn bSBvbiB0aGUNCmZlbmNlIGFzIHRvIHdoZXRoZXIgdGhpcyBpcyBhY3R1YWxseSBhIGRlc2lyYWJs ZSBwcm9wZXJ0eSB0aG91Z2guIENhcnZpbmcNCm91dCBhIGxhcmdlIGNodW5rIG9mIHN5c3RlbSBt ZW1vcnkgYXMgcmVzZXJ2ZWQgbWVtb3J5IGZvciBhIHBlcnNpc3RlZA0KZmlsZXN5c3RlbSAoYXMg SSdtIHN1Z2dlc3RpbmcpIGhhcyB0aGUgYWR2YW50YWdlcyBvZiByZW1vdmluZyBzdHJ1Y3QgcGFn ZQ0Kb3ZlcmhlYWQsIHByb3ZpZGluZyBiZXR0ZXIgZ3VhcmFudGVlcyBhYm91dCBodWdlL2dpZ2Fu dGljIHBhZ2UNCmFsbG9jYXRpb25zLCBhbmQgcHJvYmFibHkgbWFrZXMgdGhlIGtleGVjIHJlc3Rv cmUgcGF0aCBzaW1wbGVyIGFuZCBtb3JlDQpzZWxmIGNvbnRhaW5lZC4NCg0KSSB0aGluayB0aGVy ZSdzIGFuIGFyZ3VtZW50IHRvIGJlIG1hZGUgdGhhdCBoYXZpbmcgYSBjbGVhcmx5LWRlZmluZWQg bGFyZ2UNCnJhbmdlIG9mIG1lbW9yeSB3aGljaCBpcyBwZXJzaXN0ZWQsIGFuZCB0aGUgcmVzdCBp cyBub3JtYWwgImVwaGVtZXJhbCINCmtlcm5lbCBtZW1vcnkgbWF5IGJlIHByZWZlcmFibGUuDQoN CktlZW4gdG8gaGVhciB5b3VyIChhbmQgb3RoZXJzKSB0aG91Z2h0cyENCg0KSkcNCg0KWzBdIGh0 dHA6Ly9kYXZpZC53b29kaG91LnNlL2xpdmUtdXBkYXRlLWhhbmRvdmVyLnBkZg0KWzFdIGh0dHBz Oi8vbHduLm5ldC9BcnRpY2xlcy84MzkyMTYvDQpbMl0gaHR0cHM6Ly9sa21sLm9yZy9sa21sLzIw MjAvMTIvNy8zNDINCg==