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=-14.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 0AFD8C4338F for ; Wed, 11 Aug 2021 08:13:42 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 B5AF660F41 for ; Wed, 11 Aug 2021 08:13:41 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org B5AF660F41 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Subject:Cc:To:From:Message-ID:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=GgbsxLhQkJlCbo3LD6Y7KimGm402eglcIJwCmy9UJYQ=; b=eIAdNeYCJW+iPf nfo2F6zXhQMdjNkTG+0W55L0gKWlgVPIjstsHl4JZBO3PzWb1LjcQrJtLjuDbioDY3pl3Eu2epaVL vapNe9qpd24LaqakZ/DJpQ546yHdJGSzy/0S5WnvaF0bzJHKyEMsHBNCZ9QAzBVkGgq7I/ieT/WDD fvGpgg4TFAEXZKrffIG5+FdC2OkDbBCbY2RYHI2fpDIUP8KyGwacyl8urxu9M8Mc4IcQtP01Wj9jv AEnCeRSTeX2otQVJbTn7Qyo44Ilwz0PGhs4eLCTo5CFGdzWxj86EIfJOO6Nkpbjn/8fdSAcpfga/2 eE2hjLVB7DeSHnIbulWA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mDjKx-00607K-LB; Wed, 11 Aug 2021 08:11:43 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mDjKu-00606q-5B for linux-arm-kernel@lists.infradead.org; Wed, 11 Aug 2021 08:11:41 +0000 Received: from disco-boy.misterjones.org (disco-boy.misterjones.org [51.254.78.96]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id D436F60EB5; Wed, 11 Aug 2021 08:11:39 +0000 (UTC) Received: from sofa.misterjones.org ([185.219.108.64] helo=why.misterjones.org) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1mDjKr-004GBi-IT; Wed, 11 Aug 2021 09:11:37 +0100 Date: Wed, 11 Aug 2021 09:11:37 +0100 Message-ID: <87zgto9z9i.wl-maz@kernel.org> From: Marc Zyngier To: Anshuman Khandual Cc: linux-arm-kernel@lists.infradead.org, James Morse , Alexandru Elisei , Suzuki K Poulose , Catalin Marinas , Will Deacon , kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/5] KVM: arm64: Drop direct PAGE_[SHIFT|SIZE] usage as page size In-Reply-To: <0b47c654-7e9b-a7ca-bdf4-f9607062200e@arm.com> References: <1628578961-29097-1-git-send-email-anshuman.khandual@arm.com> <1628578961-29097-2-git-send-email-anshuman.khandual@arm.com> <25ee7799069492f2501003faec7f9732@kernel.org> <0b47c654-7e9b-a7ca-bdf4-f9607062200e@arm.com> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/27.1 (x86_64-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: anshuman.khandual@arm.com, linux-arm-kernel@lists.infradead.org, james.morse@arm.com, alexandru.elisei@arm.com, suzuki.poulose@arm.com, catalin.marinas@arm.com, will@kernel.org, kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210811_011140_270032_E86A5843 X-CRM114-Status: GOOD ( 27.87 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gV2VkLCAxMSBBdWcgMjAyMSAwNjozNDo0NiArMDEwMCwKQW5zaHVtYW4gS2hhbmR1YWwgPGFu c2h1bWFuLmtoYW5kdWFsQGFybS5jb20+IHdyb3RlOgo+IAo+IAo+IAo+IE9uIDgvMTAvMjEgNzow MyBQTSwgTWFyYyBaeW5naWVyIHdyb3RlOgo+ID4gT24gMjAyMS0wOC0xMCAwODowMiwgQW5zaHVt YW4gS2hhbmR1YWwgd3JvdGU6Cj4gPj4gQWxsIGluc3RhbmNlcyBoZXJlIGNvdWxkIGp1c3QgZGly ZWN0bHkgdGVzdCBhZ2FpbnN0IENPTkZJR19BUk02NF9YWEtfUEFHRVMKPiA+PiBpbnN0ZWFkIG9m IGV2YWx1YXRpbmcgdmlhIFBBR0VfU0hJRlQgb3IgUEFHRV9TSVpFLiBXaXRoIHRoaXMgY2hhbmdl LCB0aGVyZQo+ID4+IHdpbGwgYmUgbm8gc3VjaCB1c2FnZSBsZWZ0Lgo+ID4+Cj4gPj4gQ2M6IE1h cmMgWnluZ2llciA8bWF6QGtlcm5lbC5vcmc+Cj4gPj4gQ2M6IEphbWVzIE1vcnNlIDxqYW1lcy5t b3JzZUBhcm0uY29tPgo+ID4+IENjOiBBbGV4YW5kcnUgRWxpc2VpIDxhbGV4YW5kcnUuZWxpc2Vp QGFybS5jb20+Cj4gPj4gQ2M6IFN1enVraSBLIFBvdWxvc2UgPHN1enVraS5wb3Vsb3NlQGFybS5j b20+Cj4gPj4gQ2M6IENhdGFsaW4gTWFyaW5hcyA8Y2F0YWxpbi5tYXJpbmFzQGFybS5jb20+Cj4g Pj4gQ2M6IFdpbGwgRGVhY29uIDx3aWxsQGtlcm5lbC5vcmc+Cj4gPj4gQ2M6IGxpbnV4LWFybS1r ZXJuZWxAbGlzdHMuaW5mcmFkZWFkLm9yZwo+ID4+IENjOiBrdm1hcm1AbGlzdHMuY3MuY29sdW1i aWEuZWR1Cj4gPj4gQ2M6IGxpbnV4LWtlcm5lbEB2Z2VyLmtlcm5lbC5vcmcKPiA+PiBTaWduZWQt b2ZmLWJ5OiBBbnNodW1hbiBLaGFuZHVhbCA8YW5zaHVtYW4ua2hhbmR1YWxAYXJtLmNvbT4KPiA+ PiAtLS0KPiA+PiDCoGFyY2gvYXJtNjQva3ZtL2h5cC9wZ3RhYmxlLmMgfCA2ICsrKy0tLQo+ID4+ IMKgYXJjaC9hcm02NC9tbS9tbXUuY8KgwqDCoMKgwqDCoMKgwqDCoCB8IDIgKy0KPiA+PiDCoDIg ZmlsZXMgY2hhbmdlZCwgNCBpbnNlcnRpb25zKCspLCA0IGRlbGV0aW9ucygtKQo+ID4+Cj4gPj4g ZGlmZiAtLWdpdCBhL2FyY2gvYXJtNjQva3ZtL2h5cC9wZ3RhYmxlLmMgYi9hcmNoL2FybTY0L2t2 bS9oeXAvcGd0YWJsZS5jCj4gPj4gaW5kZXggMDUzMjFmNDE2NWUzLi5hNjExMmI2ZDZlZjYgMTAw NjQ0Cj4gPj4gLS0tIGEvYXJjaC9hcm02NC9rdm0vaHlwL3BndGFibGUuYwo+ID4+ICsrKyBiL2Fy Y2gvYXJtNjQva3ZtL2h5cC9wZ3RhYmxlLmMKPiA+PiBAQCAtODUsNyArODUsNyBAQCBzdGF0aWMg Ym9vbCBrdm1fbGV2ZWxfc3VwcG9ydHNfYmxvY2tfbWFwcGluZyh1MzIgbGV2ZWwpCj4gPj4gwqDC oMKgwqDCoCAqIFJlamVjdCBpbnZhbGlkIGJsb2NrIG1hcHBpbmdzIGFuZCBkb24ndCBib3RoZXIg d2l0aCA0VEIgbWFwcGluZ3MgZm9yCj4gPj4gwqDCoMKgwqDCoCAqIDUyLWJpdCBQQXMuCj4gPj4g wqDCoMKgwqDCoCAqLwo+ID4+IC3CoMKgwqAgcmV0dXJuICEobGV2ZWwgPT0gMCB8fCAoUEFHRV9T SVpFICE9IFNaXzRLICYmIGxldmVsID09IDEpKTsKPiA+PiArwqDCoMKgIHJldHVybiAhKGxldmVs ID09IDAgfHwgKCFJU19FTkFCTEVEKENPTkZJR19BUk02NF80S19QQUdFUykgJiYgbGV2ZWwgPT0g MSkpOwo+ID4+IMKgfQo+ID4+Cj4gPj4gwqBzdGF0aWMgYm9vbCBrdm1fYmxvY2tfbWFwcGluZ19z dXBwb3J0ZWQodTY0IGFkZHIsIHU2NCBlbmQsIHU2NCBwaHlzLCB1MzIgbGV2ZWwpCj4gPj4gQEAg LTE1NSw3ICsxNTUsNyBAQCBzdGF0aWMgdTY0IGt2bV9wdGVfdG9fcGh5cyhrdm1fcHRlX3QgcHRl KQo+ID4+IMKgewo+ID4+IMKgwqDCoMKgIHU2NCBwYSA9IHB0ZSAmIEtWTV9QVEVfQUREUl9NQVNL Owo+ID4+Cj4gPj4gLcKgwqDCoCBpZiAoUEFHRV9TSElGVCA9PSAxNikKPiA+PiArwqDCoMKgIGlm IChJU19FTkFCTEVEKENPTkZJR19BUk02NF82NEtfUEFHRVMpKQo+ID4+IMKgwqDCoMKgwqDCoMKg wqAgcGEgfD0gRklFTERfR0VUKEtWTV9QVEVfQUREUl81MV80OCwgcHRlKSA8PCA0ODsKPiA+Pgo+ ID4+IMKgwqDCoMKgIHJldHVybiBwYTsKPiA+PiBAQCAtMTY1LDcgKzE2NSw3IEBAIHN0YXRpYyBr dm1fcHRlX3Qga3ZtX3BoeXNfdG9fcHRlKHU2NCBwYSkKPiA+PiDCoHsKPiA+PiDCoMKgwqDCoCBr dm1fcHRlX3QgcHRlID0gcGEgJiBLVk1fUFRFX0FERFJfTUFTSzsKPiA+Pgo+ID4+IC3CoMKgwqAg aWYgKFBBR0VfU0hJRlQgPT0gMTYpCj4gPj4gK8KgwqDCoCBpZiAoSVNfRU5BQkxFRChDT05GSUdf QVJNNjRfNjRLX1BBR0VTKSkKPiA+PiDCoMKgwqDCoMKgwqDCoMKgIHB0ZSB8PSBGSUVMRF9QUkVQ KEtWTV9QVEVfQUREUl81MV80OCwgcGEgPj4gNDgpOwo+ID4+Cj4gPj4gwqDCoMKgwqAgcmV0dXJu IHB0ZTsKPiA+PiBkaWZmIC0tZ2l0IGEvYXJjaC9hcm02NC9tbS9tbXUuYyBiL2FyY2gvYXJtNjQv bW0vbW11LmMKPiA+PiBpbmRleCA5ZmYwZGUxYjJiOTMuLjhmZGZjYTE3OTgxNSAxMDA2NDQKPiA+ PiAtLS0gYS9hcmNoL2FybTY0L21tL21tdS5jCj4gPj4gKysrIGIvYXJjaC9hcm02NC9tbS9tbXUu Ywo+ID4+IEBAIC0yOTYsNyArMjk2LDcgQEAgc3RhdGljIHZvaWQgYWxsb2NfaW5pdF9jb250X3Bt ZChwdWRfdCAqcHVkcCwKPiA+PiB1bnNpZ25lZCBsb25nIGFkZHIsCj4gPj4gwqBzdGF0aWMgaW5s aW5lIGJvb2wgdXNlXzFHX2Jsb2NrKHVuc2lnbmVkIGxvbmcgYWRkciwgdW5zaWduZWQgbG9uZyBu ZXh0LAo+ID4+IMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoCB1bnNpZ25lZCBsb25nIHBoeXMpCj4g Pj4gwqB7Cj4gPj4gLcKgwqDCoCBpZiAoUEFHRV9TSElGVCAhPSAxMikKPiA+PiArwqDCoMKgIGlm ICghSVNfRU5BQkxFRChDT05GSUdfQVJNNjRfNEtfUEFHRVMpKQo+ID4+IMKgwqDCoMKgwqDCoMKg wqAgcmV0dXJuIGZhbHNlOwo+ID4+Cj4gPj4gwqDCoMKgwqAgaWYgKCgoYWRkciB8IG5leHQgfCBw aHlzKSAmIH5QVURfTUFTSykgIT0gMCkKPiA+IAo+ID4gSSBwZXJzb25hbGx5IGZpbmQgaXQgYSBs b3QgbGVzcyByZWFkYWJsZS4KPiA+IAo+ID4gQWxzbywgdGhlcmUgaXMgbm8gZXZhbHVhdGlvbiB3 aGF0c29ldmVyLiBBbGwgdGhlIGNvZGUgZ3VhcmRlZAo+ID4gYnkgYSBQQUdFX1NJWkUvUEFHRV9T SElGVCB0aGF0IGRvZXNuJ3QgbWF0Y2ggdGhlIGNvbmZpZ3VyYXRpb24KPiA+IGlzIGRyb3BwZWQg YXQgY29tcGlsZSB0aW1lLgo+IAo+IFRoZSBwcmltYXJ5IGlkZWEgaGVyZSBpcyB0byB1bmlmeSBh cm91bmQgSVNfRU5BQkxFRChDT05GSUdfQVJNNjRfWFhLX1BBR0VTKQo+IHVzYWdlIGluIGFybTY0 LCByYXRoZXIgdGhhbiBoYXZpbmcgbXVsdGlwbGUgbWV0aG9kcyB0byB0ZXN0IHBhZ2Ugc2l6ZSB3 aGVuCj4gZXZlciByZXF1aXJlZC4KCkknbSBzb3JyeSwgYnV0IEkgZmluZCB0aGUgaWRpb20gZXh0 cmVtZWx5IHBhaW5mdWwgdG8gcGFyc2UuIElmIHlvdSBhcmUKYW5ub3llZCB3aXRoIHRoZSAnUEFH RV9TSElGVCA9PSAxMi8xNC8xNicsIGNvbnNpZGVyIHJlcGxhY2luZyBpdCB3aXRoCidQQUdFX1NJ WkUgPT0gU1pfNC8xNi82NEsnIGluc3RlYWQuCgpJU19FTkFCTEVEKENPTkZJR19BUk02NF9YWEtf UEFHRVMpIGFsc28gZ2l2ZXMgdGhlIHdyb25nIGltcHJlc3Npb24KdGhhdCAqbXVsdGlwbGUqIHBh Z2Ugc2l6ZXMgY2FuIGJlIHNlbGVjdGVkIGF0IGFueSBnaXZlbiB0aW1lLiBUaGF0J3MKb2J2aW91 c2x5IG5vdCB0aGUgY2FzZSwgd2hpY2ggYWN0dWFsbHkgbWFrZXMgUEFHRV9TSVpFIGEgbXVjaCBi ZXR0ZXIKY2hvaWNlLgoKQXMgdGhpbmdzIHN0YW5kLCBJIGRvbid0IHBsYW4gdG8gdGFrZSBzdWNo IGEgcGF0Y2guCgpUaGFua3MsCgoJTS4KCi0tIApXaXRob3V0IGRldmlhdGlvbiBmcm9tIHRoZSBu b3JtLCBwcm9ncmVzcyBpcyBub3QgcG9zc2libGUuCgpfX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1hcm0ta2VybmVsIG1haWxpbmcgbGlzdApsaW51 eC1hcm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5v cmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1hcm0ta2VybmVsCg==