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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id E8200C4829A for ; Tue, 13 Feb 2024 13:24:57 +0000 (UTC) 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:In-Reply-To:From:References:Cc:To: Subject:MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=uu9km7KORvk8LZnB7rFsWg3NjVLO/4ZmTJJkn4HtD5Q=; b=vIU/pRSnCEfgj8 gG+WeefdfWsir0yNABXdBJu8IpDx2AbsmYZG+aD6Z+SzBXop5CT6eyQo5r7Nlvko9OCzqytl3JVzP bJhmtae73/QioLuVZeJw4SKHiCq10cG+gNZXNPoQwEpduSNbBCYCDnl552BbYXC0K2U+pkbr63BHK am5Q9PYEZPZL+aFBUDpcEEbaDbbn1VYXTVfc5F9WaayR0YWmcOuQbiKKLCuiKnXHxEm3KmoyLYNBh zkw3LPRzt6nkVNULep1gUz0o/HQSySLIGsYP0fdvixCVHZgfdwcOfvt+R2ZL2Gqx2PAAYL+z8dhHE maUdhp9YQ9x+v/B8o7dg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rZsmE-00000009KSK-1wK9; Tue, 13 Feb 2024 13:24:46 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rZsmC-00000009KR5-0nsq for linux-arm-kernel@lists.infradead.org; Tue, 13 Feb 2024 13:24:45 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id B29DADA7; Tue, 13 Feb 2024 05:25:21 -0800 (PST) Received: from [10.1.36.184] (XHFQ2J9959.cambridge.arm.com [10.1.36.184]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id D643C3F762; Tue, 13 Feb 2024 05:24:36 -0800 (PST) Message-ID: Date: Tue, 13 Feb 2024 13:24:35 +0000 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 19/25] arm64/mm: Wire up PTE_CONT for user mappings Content-Language: en-GB To: David Hildenbrand , Mark Rutland Cc: Catalin Marinas , Will Deacon , Ard Biesheuvel , Marc Zyngier , James Morse , Andrey Ryabinin , Andrew Morton , Matthew Wilcox , Kefeng Wang , John Hubbard , Zi Yan , Barry Song <21cnbao@gmail.com>, Alistair Popple , Yang Shi , Nicholas Piggin , Christophe Leroy , "Aneesh Kumar K.V" , "Naveen N. Rao" , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" , linux-arm-kernel@lists.infradead.org, x86@kernel.org, linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <20240202080756.1453939-1-ryan.roberts@arm.com> <20240202080756.1453939-20-ryan.roberts@arm.com> <64395ae4-3a7d-45dd-8f1d-ea6b232829c5@arm.com> <41499621-482f-455b-9f68-b43ea8052557@redhat.com> <1d302d7a-50ab-4ab4-b049-75ed4a71a87d@arm.com> <99e2a92c-f2a2-4e1e-8ce2-08caae2cb7e4@redhat.com> From: Ryan Roberts In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240213_052444_353922_4DA78B7C X-CRM114-Status: GOOD ( 23.47 ) 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 T24gMTMvMDIvMjAyNCAxMzoyMiwgRGF2aWQgSGlsZGVuYnJhbmQgd3JvdGU6Cj4gT24gMTMuMDIu MjQgMTQ6MjAsIFJ5YW4gUm9iZXJ0cyB3cm90ZToKPj4gT24gMTMvMDIvMjAyNCAxMzoxMywgRGF2 aWQgSGlsZGVuYnJhbmQgd3JvdGU6Cj4+PiBPbiAxMy4wMi4yNCAxNDowNiwgUnlhbiBSb2JlcnRz IHdyb3RlOgo+Pj4+IE9uIDEzLzAyLzIwMjQgMTI6MTksIERhdmlkIEhpbGRlbmJyYW5kIHdyb3Rl Ogo+Pj4+PiBPbiAxMy4wMi4yNCAxMzowNiwgUnlhbiBSb2JlcnRzIHdyb3RlOgo+Pj4+Pj4gT24g MTIvMDIvMjAyNCAyMDozOCwgUnlhbiBSb2JlcnRzIHdyb3RlOgo+Pj4+Pj4+IFsuLi5dCj4+Pj4+ Pj4KPj4+Pj4+Pj4+Pj4gK3N0YXRpYyBpbmxpbmUgYm9vbCBtbV9pc191c2VyKHN0cnVjdCBtbV9z dHJ1Y3QgKm1tKQo+Pj4+Pj4+Pj4+PiArewo+Pj4+Pj4+Pj4+PiArwqDCoMKgIC8qCj4+Pj4+Pj4+ Pj4+ICvCoMKgwqDCoCAqIERvbid0IGF0dGVtcHQgdG8gYXBwbHkgdGhlIGNvbnRpZyBiaXQgdG8g a2VybmVsIG1hcHBpbmdzLAo+Pj4+Pj4+Pj4+PiBiZWNhdXNlCj4+Pj4+Pj4+Pj4+ICvCoMKgwqDC oCAqIGR5bmFtaWNhbGx5IGFkZGluZy9yZW1vdmluZyB0aGUgY29udGlnIGJpdCBjYW4gY2F1c2Ug cGFnZQo+Pj4+Pj4+Pj4+PiBmYXVsdHMuCj4+Pj4+Pj4+Pj4+ICvCoMKgwqDCoCAqIFRoZXNlIHJh Y2luZyBmYXVsdHMgYXJlIG9rIGZvciB1c2VyIHNwYWNlLCBzaW5jZSB0aGV5IGdldAo+Pj4+Pj4+ Pj4+PiBzZXJpYWxpemVkCj4+Pj4+Pj4+Pj4+ICvCoMKgwqDCoCAqIG9uIHRoZSBQVEwuIEJ1dCBr ZXJuZWwgbWFwcGluZ3MgY2FuJ3QgdG9sZXJhdGUgZmF1bHRzLgo+Pj4+Pj4+Pj4+PiArwqDCoMKg wqAgKi8KPj4+Pj4+Pj4+Pj4gK8KgwqDCoCByZXR1cm4gbW0gIT0gJmluaXRfbW07Cj4+Pj4+Pj4+ Pj4+ICt9Cj4+Pj4+Pj4+Pj4KPj4+Pj4+Pj4+PiBXZSBhbHNvIGhhdmUgdGhlIGVmaV9tbSBhcyBh IG5vbi11c2VyIG1tLCB0aG91Z2ggSSBkb24ndCB0aGluayB3ZQo+Pj4+Pj4+Pj4+IG1hbmlwdWxh dGUKPj4+Pj4+Pj4+PiB0aGF0IHdoaWxlIGl0IGlzIGxpdmUsIGFuZCBJJ20gbm90IHN1cmUgaWYg dGhhdCBuZWVkcyBhbnkgc3BlY2lhbAo+Pj4+Pj4+Pj4+IGhhbmRsaW5nLgo+Pj4+Pj4+Pj4KPj4+ Pj4+Pj4+IFdlbGwgd2UgbmV2ZXIgbmVlZCB0aGlzIGZ1bmN0aW9uIGluIHRoZSBob3QgKG9yZGVy LTAgZm9saW8pIHBhdGgsIHNvIEkKPj4+Pj4+Pj4+IHRoaW5rIEkKPj4+Pj4+Pj4+IGNvdWxkIGFk ZCBhIGNoZWNrIGZvciBlZmlfbW0gaGVyZSB3aXRoIHBlcmZvcm1hbmNlIGltcGxpY2F0aW9uLiBJ dCdzCj4+Pj4+Pj4+PiBwcm9iYWJseQo+Pj4+Pj4+Pj4gc2FmZXN0IHRvIGV4cGxpY2l0bHkgZXhj bHVkZSBpdD8gV2hhdCBkbyB5b3UgdGhpbms/Cj4+Pj4+Pj4+Cj4+Pj4+Pj4+IE9vcHM6IFRoaXMg c2hvdWxkIGhhdmUgcmVhZCAiSSB0aGluayBJIGNvdWxkIGFkZCBhIGNoZWNrIGZvciBlZmlfbW0g aGVyZQo+Pj4+Pj4+PiAqd2l0aG91dCogcGVyZm9ybWFuY2UgaW1wbGljYXRpb24iCj4+Pj4+Pj4K Pj4+Pj4+PiBJdCB0dXJucyBvdXQgdGhhdCBlZmlfbW0gaXMgb25seSBkZWZpbmVkIHdoZW4gQ09O RklHX0VGSSBpcyBlbmFibGVkLiBJCj4+Pj4+Pj4gY2FuIGRvCj4+Pj4+Pj4gdGhpczoKPj4+Pj4+ Pgo+Pj4+Pj4+IHJldHVybiBtbSAhPSAmaW5pdF9tbSAmJiAoIUlTX0VOQUJMRUQoQ09ORklHX0VG SSkgfHwgbW0gIT0gJmVmaV9tbSk7Cj4+Pj4+Pj4KPj4+Pj4+PiBJcyB0aGF0IGFjY2VwdGFibGU/ IFRoaXMgaXMgbXkgcHJlZmVyZW5jZSwgYnV0IG5vdGhpbmcgZWxzZSBvdXRzaWRlIG9mIGVmaQo+ Pj4+Pj4+IHJlZmVyZW5jZXMgdGhpcyBzeW1ib2wgY3VycmVudGx5Lgo+Pj4+Pj4+Cj4+Pj4+Pj4g T3IgcGVyaGFwcyBJIGNhbiBjb252aW5jZSBteXNlbGYgdGhhdCBpdHMgc2FmZSB0byB0cmVhdCBl ZmlfbW0gbGlrZQo+Pj4+Pj4+IHVzZXJzcGFjZS4KPj4+Pj4+PiBUaGVyZSBhcmUgYSBjb3VwbGUg b2YgdGhpbmdzIHRoYXQgbmVlZCB0byBiZSBnYXJhbnRlZWQgZm9yIGl0IHRvIGJlIHNhZmU6Cj4+ Pj4+Pj4KPj4+Pj4+PiDCoMKgwqDCoCAtIFRoZSBQRk5zIG9mIHByZXNlbnQgcHRlcyBlaXRoZXIg bmVlZCB0byBoYXZlIGFuIGFzc29jaWF0ZWQgc3RydWN0Cj4+Pj4+Pj4gcGFnZSBvcgo+Pj4+Pj4+ IMKgwqDCoMKgwqDCoCBuZWVkIHRvIGhhdmUgdGhlIFBURV9TUEVDSUFMIGJpdCBzZXQgKGVpdGhl ciBwdGVfbWtzcGVjaWFsKCkgb3IKPj4+Pj4+PiDCoMKgwqDCoMKgwqAgcHRlX21rZGV2bWFwKCkp Cj4+Pj4+Pj4KPj4+Pj4+PiDCoMKgwqDCoCAtIExpdmUgbWFwcGluZ3MgbXVzdCBlaXRoZXIgYmUg c3RhdGljIChubyBjaGFuZ2VzIHRoYXQgY291bGQgY2F1c2UKPj4+Pj4+PiBmb2xkL3VuZm9sZAo+ Pj4+Pj4+IMKgwqDCoMKgwqDCoCB3aGlsZSBsaXZlKSBvciB0aGUgc3lzdGVtIG11c3QgYmUgYWJs ZSB0byB0b2xlcmF0ZSBhIHRlbXBvcmFyeSBmYXVsdAo+Pj4+Pj4+Cj4+Pj4+Pj4gTWFyayBzdWdn ZXN0cyBlZmlfbW0gaXMgbm90IG1hbmlwdWxhdGVkIHdoaWxlIGxpdmUsIHNvIHRoYXQgbWVldHMg dGhlIGxhdHRlcgo+Pj4+Pj4+IHJlcXVpcmVtZW50LCBidXQgSSdtIG5vdCBzdXJlIGFib3V0IHRo ZSBmb3JtZXI/Cj4+Pj4+Pgo+Pj4+Pj4gSSd2ZSBnb25lIHRocm91Z2ggYWxsIHRoZSBlZmkgY29k ZSwgYW5kIGNvbmNsdWRlIHRoYXQsIGFzIE1hcmsgc3VnZ2VzdHMsIHRoZQo+Pj4+Pj4gbWFwcGlu Z3MgYXJlIGluZGVlZCBzdGF0aWMuIEFuZCBhZGRpdGlvbmFsbHksIHRoZSBwdGVzIGFyZSBwb3B1 bGF0ZWQgdXNpbmcKPj4+Pj4+IG9ubHkKPj4+Pj4+IHRoZSBfcHJpdmF0ZV8gcHRlcCBBUEksIHNv IHRoZXJlIGlzIG5vIGlzc3VlIGhlcmUuIEFzIGp1c3QgZGlzY3Vzc2VkIHdpdGgKPj4+Pj4+IE1h cmssCj4+Pj4+PiBteSBwcmVmZXJlZW5jZSBpcyB0byBub3QgbWFrZSBhbnkgY2hhbmdlcyB0byBj b2RlLCBhbmQganVzdCBhZGQgYSBjb21tZW50Cj4+Pj4+PiBkZXNjcmliaW5nIHdoeSBlZmlfbW0g aXMgc2FmZS4KPj4+Pj4+Cj4+Pj4+PiBEZXRhaWxzOgo+Pj4+Pj4KPj4+Pj4+ICogUmVnaXN0ZXJl ZCB3aXRoIHB0ZHVtcAo+Pj4+Pj4gwqDCoMKgwqDCoMKgICogcHRlcF9nZXRfbG9ja2xlc3MoKQo+ Pj4+Pj4gKiBlZmlfY3JlYXRlX21hcHBpbmcgLT4gY3JlYXRlX3BnZF9tYXBwaW5nIOKApiAtPiBp bml0X3B0ZToKPj4+Pj4+IMKgwqDCoMKgwqDCoCAqIF9fcHRlcF9nZXQoKQo+Pj4+Pj4gwqDCoMKg wqDCoMKgICogX19zZXRfcHRlKCkKPj4+Pj4+ICogZWZpX21lbWF0dHJfYXBwbHlfcGVybWlzc2lv bnMgLT4gZWZpX3NldF9tYXBwaW5nX3Blcm1pc3Npb25zIOKApiAtPgo+Pj4+Pj4gc2V0X3Blcm1p c3Npb25zCj4+Pj4+PiDCoMKgwqDCoMKgwqAgKiBfX3B0ZXBfZ2V0KCkKPj4+Pj4+IMKgwqDCoMKg wqDCoCAqIF9fc2V0X3B0ZSgpCj4+Pj4+Cj4+Pj4+IFNvdW5kIGdvb2QuIFdlIGNvdWxkIGFkZCBz b21lIFZNX1dBUk5fT04gaWYgd2UgZXZlciBnZXQgdGhlIGVmaV9tbSB2aWEgdGhlCj4+Pj4+ICJv ZmZpY2lhbCIgQVBJcy4KPj4+Pgo+Pj4+IFdlIGNvdWxkLCBidXQgdGhhdCB3b3VsZCBsZWFkIHRv IHRoZSBzYW1lIGxpbmthZ2UgaXNzdWUsIHdoaWNoIEknbSB0cnlpbmcgdG8KPj4+PiBhdm9pZCBp biB0aGUgZmlyc3QgcGxhY2U6Cj4+Pj4KPj4+PiBWTV9XQVJOX09OKElTX0VOQUJMRUQoQ09ORklH X0VGSSkgJiYgbW0gPT0gZWZpX21tKTsKPj4+Pgo+Pj4+IFRoaXMgY3JlYXRlcyBuZXcgc291cmNl IGNvZGUgZGVwZW5kZW5jaWVzLCB3aGljaCBJIHdvdWxkIHJhdGhlciBhdm9pZCBpZgo+Pj4+IHBv c3NpYmxlLgo+Pj4KPj4+IEp1c3QgYSB0aG91Z2h0LCB5b3UgY291bGQgaGF2ZSBhIGlzX2VmaV9t bSgpIGZ1bmN0aW9uIHRoYXQgYWJzdHJhY3RzIGFsbCB0aGF0Lgo+Pj4KPj4+IGRpZmYgLS1naXQg YS9pbmNsdWRlL2xpbnV4L2VmaS5oIGIvaW5jbHVkZS9saW51eC9lZmkuaAo+Pj4gaW5kZXggYzc0 ZjQ3NzExZjBiLi4xNTJmNWZhNjZhMmEgMTAwNjQ0Cj4+PiAtLS0gYS9pbmNsdWRlL2xpbnV4L2Vm aS5oCj4+PiArKysgYi9pbmNsdWRlL2xpbnV4L2VmaS5oCj4+PiBAQCAtNjkyLDYgKzY5MiwxNSBA QCBleHRlcm4gc3RydWN0IGVmaSB7Cj4+PiDCoCDCoMKgZXh0ZXJuIHN0cnVjdCBtbV9zdHJ1Y3Qg ZWZpX21tOwo+Pj4gwqAgK3N0YXRpYyBpbmxpbmUgdm9pZCBpc19lZmlfbW0oc3RydWN0IG1tX3N0 cnVjdCAqbW0pCj4+PiArewo+Pj4gKyNpZmRlZiBDT05GSUdfRUZJCj4+PiArwqDCoMKgwqDCoMKg IHJldHVybiBtbSA9PSAmZWZpX21tOwo+Pj4gKyNlbHNlCj4+PiArwqDCoMKgwqDCoMKgIHJldHVy biBmYWxzZTsKPj4+ICsjZW5kaWYKPj4+ICt9Cj4+PiArCj4+PiDCoMKgc3RhdGljIGlubGluZSBp bnQKPj4+IMKgwqBlZmlfZ3VpZGNtcCAoZWZpX2d1aWRfdCBsZWZ0LCBlZmlfZ3VpZF90IHJpZ2h0 KQo+Pj4gwqDCoHsKPj4+Cj4+Pgo+Pgo+PiBUaGF0IHdvdWxkIGRlZmluaXRlbHkgd29yaywgYnV0 IGluIHRoYXQgY2FzZSwgSSBtaWdodCBhcyB3ZWxsIGp1c3QgY2hlY2sgZm9yIGl0Cj4+IGluIG1t X2lzX3VzZXIoKSAoYW5kIHBlcnNvbmFsbHkgSSB3b3VsZCBjaGFuZ2UgdGhlIG5hbWUgdG8gbW1f aXNfZWZpKCkpOgo+Pgo+Pgo+PiBzdGF0aWMgaW5saW5lIGJvb2wgbW1faXNfdXNlcihzdHJ1Y3Qg bW1fc3RydWN0ICptbSkKPj4gewo+PiDCoMKgwqDCoHJldHVybiBtbSAhPSAmaW5pdF9tbSAmJiAh bW1faXNfZWZpKG1tKTsKPj4gfQo+Pgo+PiBBbnkgb2JqZWN0aW9ucz8KPj4KPiAKPiBOb3BlIDop IE1heWJlIHNsYXAgaW4gYW4gInVubGlrZWx5KCkiLCBiZWNhdXNlIGVmaV9tbSAqaXMqIHVubGlr ZWx5IHRvIHNob3cgdXAuCgpEZWFsCgo+IAoKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fCmxpbnV4LWFybS1rZXJuZWwgbWFpbGluZyBsaXN0CmxpbnV4LWFy bS1rZXJuZWxAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9t YWlsbWFuL2xpc3RpbmZvL2xpbnV4LWFybS1rZXJuZWwK