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 DB9BBCF58CC for ; Fri, 20 Sep 2024 05:10:48 +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:MIME-Version:Message-ID:Date:References :In-Reply-To:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=i6BJE4GQcGxIjISTA+PxurwCtDbPwGg8RgUzc/AC7wU=; b=gQ5fTnCc46ttfg p8l5GodlhaDPfRrG5QdiV+63I1Vuyjw2USrCh5k7KFH0FpsjKeeE+t7QoU/KP2w9eO21zys+MmyWi nXyfwJu1ZvMXP77bZp3zqhgOAOFbcbScstUrsOHfwtSU6Vut96t7jrSUOLDFzkHUy3PDZvL9eug1I ZX5D3ISJk4NJHXILpzw4coItfp875f/eSF/ZNfn1Lgwx1iYc0xWHdOgIcZAYkj+5sZ20dsLIxJMk3 R6iNVE0KIY3rzUqxq3YEyUvCynM+cpKFY3RVMti9/fqsj92vtuFE1J2a9SkRZDyX4zUkQJhBhMh/e k+mjtlI8zc4j5CsSfdeQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1srVuq-0000000BSfH-1VuL; Fri, 20 Sep 2024 05:10:48 +0000 Received: from mail.ozlabs.org ([2404:9400:2221:ea00::3]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1srVun-0000000BSeJ-0sII; Fri, 20 Sep 2024 05:10:46 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ellerman.id.au; s=201909; t=1726809043; bh=rRnqIQfUKl5hMqMziAAuyLYljr0XWCtIu8tELgZL7Kk=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=SMnj41MDT0Lf3PfeIXIT3YwHOI0uAuuDLjE0t47tRZRaNTFGPp7CmsiqP5xtDHrve GQpxRf3WsppyZZ4VsMpffig95QUjZAZcDTfAYoQRqb1kT/tFerPynOIHTZHPuzrIZ0 6IUod3m4WM+YcquTxyACp+qQoBmzjqHxZaUgk+jSzmb/iMutuZKenA1h2ctddPY4VB zq+UuDefISa1ohGSToaZ++xjvfQUbK1tokALiwcAwa1KGWQEeHrE7fds5GO8aUidii ZlBYq9K3KPr01kqIlLozoiNa0r5uQQx7O30KTZoarDO3+tCBmjhV32YlfcEEOMpICG jWz/PZdm+HR7A== Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mail.ozlabs.org (Postfix) with ESMTPSA id 4X90nx2nGtz4xD3; Fri, 20 Sep 2024 15:10:29 +1000 (AEST) From: Michael Ellerman To: Charlie Jenkins Cc: Geert Uytterhoeven , Christophe Leroy , Arnd Bergmann , Richard Henderson , Ivan Kokshaysky , Matt Turner , Vineet Gupta , Russell King , Guo Ren , Huacai Chen , WANG Xuerui , Thomas Bogendoerfer , "James E.J. Bottomley" , Helge Deller , Nicholas Piggin , Naveen N Rao , Alexander Gordeev , Gerald Schaefer , Heiko Carstens , Vasily Gorbik , Christian Borntraeger , Sven Schnelle , Yoshinori Sato , Rich Felker , John Paul Adrian Glaubitz , "David S. Miller" , Andreas Larsson , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Andy Lutomirski , Peter Zijlstra , Muchun Song , Andrew Morton , "Liam R. Howlett" , Vlastimil Babka , Lorenzo Stoakes , Shuah Khan , Christoph Hellwig , Michal Hocko , "Kirill A. Shutemov" , Chris Torek , linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, linux-alpha@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, loongarch@lists.linux.dev, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-abi-devel@lists.sourceforge.net Subject: Re: [PATCH RFC v3 1/2] mm: Add personality flag to limit address to 47 bits In-Reply-To: References: <20240905-patches-below_hint_mmap-v3-0-3cd5564efbbb@rivosinc.com> <20240905-patches-below_hint_mmap-v3-1-3cd5564efbbb@rivosinc.com> <87zfol468z.fsf@mail.lhotse> <1aca8e4c-1c12-4624-a689-147ff60b75d6@csgroup.eu> <8734m6s428.fsf@mail.lhotse> Date: Fri, 20 Sep 2024 15:10:28 +1000 Message-ID: <87y13mnc57.fsf@mail.lhotse> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240919_221045_553686_2B05AAE3 X-CRM114-Status: GOOD ( 18.70 ) X-BeenThere: linux-snps-arc@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux on Synopsys ARC Processors List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-snps-arc" Errors-To: linux-snps-arc-bounces+linux-snps-arc=archiver.kernel.org@lists.infradead.org Q2hhcmxpZSBKZW5raW5zIDxjaGFybGllQHJpdm9zaW5jLmNvbT4gd3JpdGVzOgo+IE9uIFdlZCwg U2VwIDExLCAyMDI0IGF0IDExOjM4OjU1UE0gKzEwMDAsIE1pY2hhZWwgRWxsZXJtYW4gd3JvdGU6 Cj4+IEdlZXJ0IFV5dHRlcmhvZXZlbiA8Z2VlcnRAbGludXgtbTY4ay5vcmc+IHdyaXRlczoKPj4g PiBIaSBDaHJpc3RvcGhlLAo+PiA+Cj4+ID4gT24gVHVlLCBTZXAgMTAsIDIwMjQgYXQgMTE6MjHi gK9BTSBDaHJpc3RvcGhlIExlcm95Cj4+ID4gPGNocmlzdG9waGUubGVyb3lAY3Nncm91cC5ldT4g d3JvdGU6Cj4+ID4+ID4+PiBkaWZmIC0tZ2l0IGEvaW5jbHVkZS91YXBpL2xpbnV4L3BlcnNvbmFs aXR5LmggYi9pbmNsdWRlL3VhcGkvbGludXgvcGVyc29uYWxpdHkuaAo+PiA+PiA+Pj4gaW5kZXgg NDk3OTZiNzc1NmFmLi5jZDNiOGMxNTRkOWIgMTAwNjQ0Cj4+ID4+ID4+PiAtLS0gYS9pbmNsdWRl L3VhcGkvbGludXgvcGVyc29uYWxpdHkuaAo+PiA+PiA+Pj4gKysrIGIvaW5jbHVkZS91YXBpL2xp bnV4L3BlcnNvbmFsaXR5LmgKPj4gPj4gPj4+IEBAIC0yMiw2ICsyMiw3IEBAIGVudW0gewo+PiA+ PiA+Pj4gICAgIFdIT0xFX1NFQ09ORFMgPSAgICAgICAgIDB4MjAwMDAwMCwKPj4gPj4gPj4+ICAg ICBTVElDS1lfVElNRU9VVFMgPSAgICAgICAweDQwMDAwMDAsCj4+ID4+ID4+PiAgICAgQUREUl9M SU1JVF8zR0IgPSAgICAgICAgMHg4MDAwMDAwLAo+PiA+PiA+Pj4gKyAgIEFERFJfTElNSVRfNDdC SVQgPSAgICAgIDB4MTAwMDAwMDAsCj4+ID4+ID4+PiAgIH07Cj4+ID4+ID4+Cj4+ID4+ID4+IEkg d29uZGVyIGlmIEFERFJfTElNSVRfMTI4VCB3b3VsZCBiZSBjbGVhcmVyPwo+PiA+PiA+Pgo+PiA+ PiA+Cj4+ID4+ID4gSSBkb24ndCBmb2xsb3csIHdoYXQgZG9lcyAxMjhUIHJlcHJlc2VudD8KPj4g Pj4KPj4gPj4gMTI4VCBpcyAxMjggVGVyYWJ5dGVzLCB0aGF0J3MgdGhlIG1heGltdW0gc2l6ZSBh Y2hpZXZhYmxlIHdpdGggYSA0N0JJVAo+PiA+PiBhZGRyZXNzLCB0aGF0IG5hbWluZyB3b3VsZCBi ZSBtb3JlIGNvbnNpc3RhbnQgd2l0aCB0aGUgQUREUl9MSU1JVF8zR0IKPj4gPj4ganVzdCBhYm92 ZSB0aGF0IG1lYW5zIGEgMyBHaWdhYnl0ZXMgbGltaXQuCj4+ID4KPj4gPiBIZW5jZSBBRERSX0xJ TUlUXzEyOFRCPwo+PiAKPj4gWWVzIGl0IHNob3VsZCBiZSAxMjhUQi4gVHlwbyBieSBtZS4KPgo+ IDQ3QklUIHdhcyBzZWxlY3RlZCBiZWNhdXNlIHRoZSB1c2VjYXNlIGZvciB0aGlzIGZsYWcgaXMg Zm9yIGFwcGxpY2F0aW9ucwo+IHRoYXQgd2FudCB0byBzdG9yZSBkYXRhIGluIHRoZSB1cHBlciBi aXRzIG9mIGEgdmlydHVhbCBhZGRyZXNzIHNwYWNlLiBJbgo+IHRoaXMgY2FzZSwgaG93IGxhcmdl IHRoZSB2aXJ0dWFsIGFkZHJlc3Mgc3BhY2UgaXMgaXJyZWxldmFudCwgYW5kIG9ubHkKPiB0aGUg bnVtYmVyIG9mIGJpdHMgdGhhdCBhcmUgYmVpbmcgdXNlZCwgYW5kIGhlbmNlIHRoZSBudW1iZXIg b2YgYml0cwo+IHRoYXQgYXJlIGZyZWUuCgpZZWFoIEkgdW5kZXJzdGFuZCB0aGF0J3MgaG93IHlv dSBjYW1lIHRvIHRoZSBwcm9ibGVtLgoKQnV0IGZvciB0aGUgdXNlciBBUEkgSSB0aGluayB1c2lu ZyB0aGUgc2l6ZSBvZiB0aGUgYWRkcmVzcyBzcGFjZSBpcwpjbGVhcmVyLCBlYXNpZXIgdG8gZXhw bGFpbiwgYW5kIG1hdGNoZXMgdGhlIGV4aXN0aW5nIEFERFJfTElNSVRfM0dCLgoKY2hlZXJzCgpf X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1zbnBz LWFyYyBtYWlsaW5nIGxpc3QKbGludXgtc25wcy1hcmNAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRw Oi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LXNucHMtYXJjCg==