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 X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7571EC35677 for ; Mon, 24 Feb 2020 01:07:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 55AF42071C for ; Mon, 24 Feb 2020 01:07:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727189AbgBXBH5 (ORCPT ); Sun, 23 Feb 2020 20:07:57 -0500 Received: from szxga01-in.huawei.com ([45.249.212.187]:2970 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727148AbgBXBH5 (ORCPT ); Sun, 23 Feb 2020 20:07:57 -0500 Received: from DGGEMM401-HUB.china.huawei.com (unknown [172.30.72.55]) by Forcepoint Email with ESMTP id 43B0C58324CD8F3D7D0C; Mon, 24 Feb 2020 09:07:55 +0800 (CST) Received: from DGGEMM421-HUB.china.huawei.com (10.1.198.38) by DGGEMM401-HUB.china.huawei.com (10.3.20.209) with Microsoft SMTP Server (TLS) id 14.3.439.0; Mon, 24 Feb 2020 09:07:54 +0800 Received: from DGGEMM508-MBX.china.huawei.com ([169.254.2.45]) by dggemm421-hub.china.huawei.com ([10.1.198.38]) with mapi id 14.03.0439.000; Mon, 24 Feb 2020 09:07:47 +0800 From: "Zhoujian (jay)" To: Peter Feiner , Junaid Shahid CC: Ben Gardon , Peter Xu , "kvm@vger.kernel.org" , "qemu-devel@nongnu.org" , "pbonzini@redhat.com" , "dgilbert@redhat.com" , "quintela@redhat.com" , "Liujinsong (Paul)" , "linfeng (M)" , "wangxin (U)" , "Huangweidong (C)" Subject: RE: RFC: Split EPT huge pages in advance of dirty logging Thread-Topic: RFC: Split EPT huge pages in advance of dirty logging Thread-Index: AdXmU97BvyK5YKoyS5++my9GnvXVk///1+yA//428yCAA1S3gP/+abuggAMs8gCAAd62AIAAJJ4A//xJ+gA= Date: Mon, 24 Feb 2020 01:07:47 +0000 Message-ID: References: <20200218174311.GE1408806@xz-x1> <20200219171919.GA34517@xz-x1> In-Reply-To: Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.173.228.206] Content-Type: text/plain; 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charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-CFilter-Loop: Reflected X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 45.249.212.187 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Liujinsong \(Paul\)" , "linfeng \(M\)" , "kvm@vger.kernel.org" , "quintela@redhat.com" , "wangxin \(U\)" , "qemu-devel@nongnu.org" , Peter Xu , "dgilbert@redhat.com" , Ben Gardon , "pbonzini@redhat.com" , "Huangweidong \(C\)" Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" DQoNCj4gLS0tLS1PcmlnaW5hbCBNZXNzYWdlLS0tLS0NCj4gRnJvbTogUGV0ZXIgRmVpbmVyIFtt YWlsdG86cGZlaW5lckBnb29nbGUuY29tXQ0KPiBTZW50OiBTYXR1cmRheSwgRmVicnVhcnkgMjIs IDIwMjAgODoxOSBBTQ0KPiBUbzogSnVuYWlkIFNoYWhpZCA8anVuYWlkc0Bnb29nbGUuY29tPg0K PiBDYzogQmVuIEdhcmRvbiA8YmdhcmRvbkBnb29nbGUuY29tPjsgWmhvdWppYW4gKGpheSkNCj4g PGppYW5qYXkuemhvdUBodWF3ZWkuY29tPjsgUGV0ZXIgWHUgPHBldGVyeEByZWRoYXQuY29tPjsN Cj4ga3ZtQHZnZXIua2VybmVsLm9yZzsgcWVtdS1kZXZlbEBub25nbnUub3JnOyBwYm9uemluaUBy ZWRoYXQuY29tOw0KPiBkZ2lsYmVydEByZWRoYXQuY29tOyBxdWludGVsYUByZWRoYXQuY29tOyBM aXVqaW5zb25nIChQYXVsKQ0KPiA8bGl1LmppbnNvbmdAaHVhd2VpLmNvbT47IGxpbmZlbmcgKE0p IDxsaW5mZW5nMjNAaHVhd2VpLmNvbT47IHdhbmd4aW4gKFUpDQo+IDx3YW5neGlueGluLndhbmdA aHVhd2VpLmNvbT47IEh1YW5nd2VpZG9uZyAoQykNCj4gPHdlaWRvbmcuaHVhbmdAaHVhd2VpLmNv bT4NCj4gU3ViamVjdDogUmU6IFJGQzogU3BsaXQgRVBUIGh1Z2UgcGFnZXMgaW4gYWR2YW5jZSBv ZiBkaXJ0eSBsb2dnaW5nDQo+IA0KPiBPbiBGcmksIEZlYiAyMSwgMjAyMCBhdCAyOjA4IFBNIEp1 bmFpZCBTaGFoaWQgPGp1bmFpZHNAZ29vZ2xlLmNvbT4gd3JvdGU6DQo+ID4NCj4gPiBPbiAyLzIw LzIwIDk6MzQgQU0sIEJlbiBHYXJkb24gd3JvdGU6DQo+ID4gPg0KPiA+ID4gRldJVywgd2UgY3Vy cmVudGx5IGRvIHRoaXMgZWFnZXIgc3BsaXR0aW5nIGF0IEdvb2dsZSBmb3IgbGl2ZQ0KPiA+ID4g bWlncmF0aW9uLiBXaGVuIHRoZSBsb2ctZGlydHktbWVtb3J5IGZsYWcgaXMgc2V0IG9uIGEgbWVt c2xvdCB3ZQ0KPiA+ID4gZWFnZXJseSBzcGxpdCBhbGwgcGFnZXMgaW4gdGhlIHNsb3QgZG93biB0 byA0ayBncmFudWxhcml0eS4NCj4gPiA+IEFzIEpheSBzYWlkLCB0aGlzIGRvZXMgbm90IGNhdXNl IGNyaXBwbGluZyBsb2NrIGNvbnRlbnRpb24gYmVjYXVzZQ0KPiA+ID4gdGhlIHZDUFUgcGFnZSBm YXVsdHMgZ2VuZXJhdGVkIGJ5IHdyaXRlIHByb3RlY3Rpb24gLyBzcGxpdHRpbmcgY2FuDQo+ID4g PiBiZSByZXNvbHZlZCBpbiB0aGUgZmFzdCBwYWdlIGZhdWx0IHBhdGggd2l0aG91dCBhY3F1aXJp bmcgdGhlIE1NVSBsb2NrLg0KPiA+ID4gSSBiZWxpZXZlICtKdW5haWQgU2hhaGlkIHRyaWVkIHRv IHVwc3RyZWFtIHRoaXMgYXBwcm9hY2ggYXQgc29tZQ0KPiA+ID4gcG9pbnQgaW4gdGhlIHBhc3Qs IGJ1dCB0aGUgcGF0Y2ggc2V0IGRpZG4ndCBtYWtlIGl0IGluLiAoVGhpcyB3YXMNCj4gPiA+IGJl Zm9yZSBteSB0aW1lLCBzbyBJJ20gaG9waW5nIGhlIGhhcyBhIGxpbmsuKSBJIGhhdmVuJ3QgZG9u ZSB0aGUNCj4gPiA+IGFuYWx5c2lzIHRvIGtub3cgaWYgZWFnZXIgc3BsaXR0aW5nIGlzIG1vcmUg b3IgbGVzcyBlZmZpY2llbnQgd2l0aA0KPiA+ID4gcGFyYWxsZWwgc2xvdy1wYXRoIHBhZ2UgZmF1 bHRzLCBidXQgaXQncyBkZWZpbml0ZWx5IGZhc3RlciB1bmRlciB0aGUNCj4gPiA+IE1NVSBsb2Nr Lg0KPiA+ID4NCj4gPg0KPiA+IEkgYW0gbm90IHN1cmUgaWYgd2UgZXZlciBwb3N0ZWQgdGhvc2Ug cGF0Y2hlcyB1cHN0cmVhbS4gUGV0ZXIgRmVpbmVyIHdvdWxkDQo+IGtub3cgZm9yIHN1cmUuIE9u ZSBub3RhYmxlIGRpZmZlcmVuY2UgaW4gd2hhdCB3ZSBkbyBjb21wYXJlZCB0byB0aGUgYXBwcm9h Y2gNCj4gb3V0bGluZWQgYnkgSmF5IGlzIHRoYXQgd2UgZG9uJ3QgcmVseSBvbiB0ZHBfcGFnZV9m YXVsdCgpIHRvIGRvIHRoZSBzcGxpdHRpbmcuIFNvDQo+IHdlIGRvbid0IGhhdmUgdG8gY3JlYXRl IGEgZHVtbXkgVkNQVSBhbmQgdGhlIHNwZWNpYWxpemVkIHNwbGl0IGZ1bmN0aW9uIGlzIGFsc28N Cj4gbXVjaCBmYXN0ZXIuDQoNCkknbSBjdXJpb3VzIGFuZCBpbnRlcmVzdGVkIGluIHRoZSB3YXkg eW91IGltcGxlbWVudGVkLCBlc3BlY2lhbGx5IHlvdSBtZW50aW9uZWQNCnRoYXQgdGhlIHBlcmZv cm1hbmNlIGlzIG11Y2ggZmFzdGVyIHdpdGhvdXQgYSBkdW1teSBWQ1BVLg0KDQo+IFdlJ3ZlIGJl ZW4gY2FycnlpbmcgdGhlc2UgcGF0Y2hlcyBzaW5jZSAyMDE1LiBJJ3ZlIG5ldmVyIHBvc3RlZCB0 aGVtLg0KPiBHZXR0aW5nIHRoZW0gaW4gc2hhcGUgZm9yIHVwc3RyZWFtIGNvbnN1bXB0aW9uIHdp bGwgdGFrZSBzb21lIHdvcmsuIEkgY2FuDQo+IGxvb2sgaW50byB0aGlzIG5leHQgd2Vlay4NCg0K SXQgd2lsbCBiZSBuaWNlIGlmIHlvdSdyZSBnb2luZyB0byBwb3N0IGl0IHRvIHRoZSB1cHN0cmVh bS4NCg0KUmVnYXJkcywNCkpheSBaaG91DQoNCj4gDQo+IFBldGVyDQo=