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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 56CB5C43603 for ; Fri, 13 Dec 2019 21:28:49 +0000 (UTC) Received: from ml01.01.org (ml01.01.org [198.145.21.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E4FB424125 for ; Fri, 13 Dec 2019 21:28:48 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E4FB424125 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-nvdimm-bounces@lists.01.org Received: from ml01.vlan13.01.org (localhost [IPv6:::1]) by ml01.01.org (Postfix) with ESMTP id A59BD1011369D; Fri, 13 Dec 2019 09:53:57 -0800 (PST) Received-SPF: Pass (mailfrom) identity=mailfrom; client-ip=134.134.136.31; helo=mga06.intel.com; envelope-from=sean.j.christopherson@intel.com; receiver= Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 0559F10113699 for ; Fri, 13 Dec 2019 09:53:55 -0800 (PST) X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 13 Dec 2019 09:50:32 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,309,1571727600"; d="scan'208";a="415709726" Received: from sjchrist-coffee.jf.intel.com (HELO linux.intel.com) ([10.54.74.202]) by fmsmga006.fm.intel.com with ESMTP; 13 Dec 2019 09:50:31 -0800 Date: Fri, 13 Dec 2019 09:50:31 -0800 From: Sean Christopherson To: Liran Alon Subject: Re: [PATCH v5 2/2] kvm: Use huge pages for DAX-backed files Message-ID: <20191213175031.GC31552@linux.intel.com> References: <20191212182238.46535-1-brho@google.com> <20191212182238.46535-3-brho@google.com> <06108004-1720-41EB-BCAB-BFA8FEBF4772@oracle.com> <65FB6CC1-3AD2-4D6F-9481-500BD7037203@oracle.com> <20191213171950.GA31552@linux.intel.com> <4A5E026D-53E6-4F30-A80D-B5E6AA07A786@oracle.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <4A5E026D-53E6-4F30-A80D-B5E6AA07A786@oracle.com> User-Agent: Mutt/1.5.24 (2015-08-30) Message-ID-Hash: Q2QGVLGTGBCUPVVMGDXX23NLNNSMYTUM X-Message-ID-Hash: Q2QGVLGTGBCUPVVMGDXX23NLNNSMYTUM X-MailFrom: sean.j.christopherson@intel.com X-Mailman-Rule-Hits: nonmember-moderation X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation CC: Barret Rhoden , Paolo Bonzini , David Hildenbrand , Alexander Duyck , linux-nvdimm@lists.01.org, x86@kernel.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, jason.zeng@intel.com X-Mailman-Version: 3.1.1 Precedence: list List-Id: "Linux-nvdimm developer list." Archived-At: List-Archive: List-Help: List-Post: List-Subscribe: List-Unsubscribe: Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 T24gRnJpLCBEZWMgMTMsIDIwMTkgYXQgMDc6MzE6NTVQTSArMDIwMCwgTGlyYW4gQWxvbiB3cm90 ZToNCj4gDQo+ID4gT24gMTMgRGVjIDIwMTksIGF0IDE5OjE5LCBTZWFuIENocmlzdG9waGVyc29u IDxzZWFuLmouY2hyaXN0b3BoZXJzb25AaW50ZWwuY29tPiB3cm90ZToNCj4gPiANCj4gPiBUaGVu IGFsbG93ZWRfaHVnZXBhZ2VfYWRqdXN0KCkgd291bGQgbG9vayBzb21ldGhpbmcgbGlrZToNCj4g PiANCj4gPiBzdGF0aWMgdm9pZCBhbGxvd2VkX2h1Z2VwYWdlX2FkanVzdChzdHJ1Y3Qga3ZtX3Zj cHUgKnZjcHUsIGdmbl90IGdmbiwNCj4gPiAJCQkJICAgIGt2bV9wZm5fdCAqcGZucCwgaW50ICps ZXZlbHAsIGludCBtYXhfbGV2ZWwpDQo+ID4gew0KPiA+IAlrdm1fcGZuX3QgcGZuID0gKnBmbnA7 DQo+ID4gCWludCBsZXZlbCA9ICpsZXZlbHA7CQ0KPiA+IAl1bnNpZ25lZCBsb25nIG1hc2s7DQo+ ID4gDQo+ID4gCWlmIChpc19lcnJvcl9ub3Nsb3RfcGZuKHBmbikgfHwgIWt2bV9pc19yZXNlcnZl ZF9wZm4ocGZuKSB8fA0KPiA+IAkgICAgbGV2ZWwgPT0gUFRfUEFHRV9UQUJMRV9MRVZFTCkNCj4g PiAJCXJldHVybjsNCj4gPiANCj4gPiAJLyoNCj4gPiAJICogbW11X25vdGlmaWVyX3JldHJ5KCkg d2FzIHN1Y2Nlc3NmdWwgYW5kIG1tdV9sb2NrIGlzIGhlbGQsIHNvDQo+ID4gCSAqIHRoZSBwbWQv cHVkIGNhbid0IGJlIHNwbGl0IGZyb20gdW5kZXIgdXMuDQo+ID4gCSAqLw0KPiA+IAlsZXZlbCA9 IGhvc3RfcGZuX21hcHBpbmdfbGV2ZWwodmNwdS0+a3ZtLCBnZm4sIHBmbik7DQo+ID4gDQo+ID4g CSpsZXZlbHAgPSBsZXZlbCA9IG1pbihsZXZlbCwgbWF4X2xldmVsKTsNCj4gPiAJbWFzayA9IEtW TV9QQUdFU19QRVJfSFBBR0UobGV2ZWwpIC0gMTsNCj4gPiAJVk1fQlVHX09OKChnZm4gJiBtYXNr KSAhPSAocGZuICYgbWFzaykpOw0KPiA+IAkqcGZucCA9IHBmbiAmIH5tYXNrOw0KPiANCj4gV2h5 IGRvbuKAmXQgeW91IHN0aWxsIG5lZWQgdG8ga3ZtX3JlbGVhc2VfcGZuX2NsZWFuKCkgZm9yIG9y aWdpbmFsIHBmbiBhbmQNCj4ga3ZtX2dldF9wZm4oKSBmb3IgbmV3IGh1Z2UtcGFnZSBzdGFydCBw Zm4/DQoNClRoYXQgY29kZSBpcyBnb25lIGluIGt2bS9xdWV1ZS4gIHRocF9hZGp1c3QoKSBpcyBu b3cgY2FsbGVkIGZyb20NCl9fZGlyZWN0X21hcCgpIGFuZCBGTkFNRShmZXRjaCksIGFuZCBzbyBp dHMgcGZuIGFkanVzdG1lbnQgZG9lc24ndCBibGVlZA0KYmFjayB0byB0aGUgcGFnZSBmYXVsdCBo YW5kbGVycy4gIFRoZSBvbmx5IHJlYXNvbiB0aGUgcHV0L2dldCBwZm4gY29kZQ0KZXhpc3RlZCB3 YXMgYmVjYXVzZSB0aGUgcGFnZSBmYXVsdCBoYW5kbGVycyBjYWxsZWQga3ZtX3JlbGVhc2VfcGZu X2NsZWFuKCkNCm9uIHRoZSBwZm4sIGkuZS4gdGhleSB3b3VsZCBoYXZlIHB1dCB0aGUgd3Jvbmcg cGZuLgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpMaW51 eC1udmRpbW0gbWFpbGluZyBsaXN0IC0tIGxpbnV4LW52ZGltbUBsaXN0cy4wMS5vcmcKVG8gdW5z dWJzY3JpYmUgc2VuZCBhbiBlbWFpbCB0byBsaW51eC1udmRpbW0tbGVhdmVAbGlzdHMuMDEub3Jn Cg==