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=-4.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 183B5C433E0 for ; Wed, 20 Jan 2021 10:59:53 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 B5B3722242 for ; Wed, 20 Jan 2021 10:59:52 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B5B3722242 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Type: Content-Transfer-Encoding:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:Message-ID:References:In-Reply-To:Subject:To:From: Date:MIME-Version:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=NkW/03XMgfbORzx+zOow0kE0J+7vJllidHVucWyda70=; b=AwNd/IfcwsIHSnORwdw8OXgee aAGfPgSDivUer280IvVtlcg65dRB1UFYe6RqBdpuzgE+zNcjoSBJRmFwWjW6ZFNzHQ1TM5DsRNp6D QUxCEg+fUj32mSl4HlaRdUCaKMeL6nY+4/XSDa/5Ea1FXPI9GHihftO4nPLnqc0VURZIhZ40JZB/L C8hqT2Mwy9p7nXbO2LbDCCQYs+4jXPvB9yQMKWjhb1e5w1gOlZeu1bS1nNcXWrNJPgMYikZ8/Myyh rYPM3jPIORorKl1wIucSSS98BVwS47rtppeFECqFmU8wsWb2orTQKYSa2rd/ODEM/vrNEA1QZ3Awe vJGga+Lng==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1l2BC2-0004Eg-0L; Wed, 20 Jan 2021 10:58:30 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1l2BBy-0004Ds-2b for linux-arm-kernel@lists.infradead.org; Wed, 20 Jan 2021 10:58:26 +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 4921C21744; Wed, 20 Jan 2021 10:58:24 +0000 (UTC) Received: from disco-boy.misterjones.org ([51.254.78.96] helo=www.loen.fr) by disco-boy.misterjones.org with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.94) (envelope-from ) id 1l2BBu-008vIz-4y; Wed, 20 Jan 2021 10:58:22 +0000 MIME-Version: 1.0 Date: Wed, 20 Jan 2021 10:58:22 +0000 From: Marc Zyngier To: Justin He Subject: Re: [RFC PATCH 0/2] Avoid booting stall caused by idmap_kpti_install_ng_mappings In-Reply-To: References: User-Agent: Roundcube Webmail/1.4.10 Message-ID: X-Sender: maz@kernel.org X-SA-Exim-Connect-IP: 51.254.78.96 X-SA-Exim-Rcpt-To: Justin.He@arm.com, Catalin.Marinas@arm.com, will@kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Anshuman.Khandual@arm.com, Suzuki.Poulose@arm.com, Mark.Rutland@arm.com, gustavoars@kernel.org, richard.henderson@linaro.org, Dave.Martin@arm.com, Steven.Price@arm.com, akpm@linux-foundation.org, rppt@kernel.org, ardb@kernel.org, gshan@redhat.com, wangkefeng.wang@huawei.com, broonie@kernel.org, Cristian.Marussi@arm.com 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-20210120_055826_267171_D6DD1DA7 X-CRM114-Status: GOOD ( 15.07 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Kefeng Wang , Gavin Shan , Suzuki Poulose , Ard Biesheuvel , Catalin Marinas , Anshuman Khandual , Richard Henderson , linux-kernel@vger.kernel.org, "Gustavo A. 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Silva" , Mark Brown , Cristian Marussi , Mike Rapoport , Andrew Morton , Steven Price , Will Deacon , Dave P Martin , linux-arm-kernel@lists.infradead.org Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org SGkgSnVzdGluLAoKT24gMjAyMS0wMS0yMCAwNDo1MSwgSnVzdGluIEhlIHdyb3RlOgo+IEhpLAo+ IEtpbmRseSBwaW5nIPCfmIoKPiAKPj4gLS0tLS1PcmlnaW5hbCBNZXNzYWdlLS0tLS0KPj4gRnJv bTogSmlhIEhlIDxqdXN0aW4uaGVAYXJtLmNvbT4KPj4gU2VudDogV2VkbmVzZGF5LCBKYW51YXJ5 IDEzLCAyMDIxIDk6NDEgQU0KPj4gVG86IENhdGFsaW4gTWFyaW5hcyA8Q2F0YWxpbi5NYXJpbmFz QGFybS5jb20+OyBXaWxsIERlYWNvbgo+PiA8d2lsbEBrZXJuZWwub3JnPjsgbGludXgtYXJtLWtl cm5lbEBsaXN0cy5pbmZyYWRlYWQub3JnOyBsaW51eC0KPj4ga2VybmVsQHZnZXIua2VybmVsLm9y Zwo+PiBDYzogQW5zaHVtYW4gS2hhbmR1YWwgPEFuc2h1bWFuLktoYW5kdWFsQGFybS5jb20+OyBT dXp1a2kgUG91bG9zZQo+PiA8U3V6dWtpLlBvdWxvc2VAYXJtLmNvbT47IEp1c3RpbiBIZSA8SnVz dGluLkhlQGFybS5jb20+OyBNYXJrIFJ1dGxhbmQKPj4gPE1hcmsuUnV0bGFuZEBhcm0uY29tPjsg R3VzdGF2byBBLiBSLiBTaWx2YSA8Z3VzdGF2b2Fyc0BrZXJuZWwub3JnPjsKPj4gUmljaGFyZCBI ZW5kZXJzb24gPHJpY2hhcmQuaGVuZGVyc29uQGxpbmFyby5vcmc+OyBEYXZlIFAgTWFydGluCj4+ IDxEYXZlLk1hcnRpbkBhcm0uY29tPjsgU3RldmVuIFByaWNlIDxTdGV2ZW4uUHJpY2VAYXJtLmNv bT47IEFuZHJldyAKPj4gTW9ydG9uCj4+IDxha3BtQGxpbnV4LWZvdW5kYXRpb24ub3JnPjsgTWlr ZSBSYXBvcG9ydCA8cnBwdEBrZXJuZWwub3JnPjsgQXJkCj4+IEJpZXNoZXV2ZWwgPGFyZGJAa2Vy bmVsLm9yZz47IEdhdmluIFNoYW4gPGdzaGFuQHJlZGhhdC5jb20+OyBLZWZlbmcgCj4+IFdhbmcK Pj4gPHdhbmdrZWZlbmcud2FuZ0BodWF3ZWkuY29tPjsgTWFyayBCcm93biA8YnJvb25pZUBrZXJu ZWwub3JnPjsgTWFyYyAKPj4gWnluZ2llcgo+PiA8bWF6QGtlcm5lbC5vcmc+OyBDcmlzdGlhbiBN YXJ1c3NpIDxDcmlzdGlhbi5NYXJ1c3NpQGFybS5jb20+Cj4+IFN1YmplY3Q6IFtSRkMgUEFUQ0gg MC8yXSBBdm9pZCBib290aW5nIHN0YWxsIGNhdXNlZCBieQo+PiAKPj4gVGhlcmUgaXMgYSAxMHMg c3RhbGwgaW4gaWRtYXBfa3B0aV9pbnN0YWxsX25nX21hcHBpbmdzIHdoZW4ga2VybmVsIAo+PiBi b290cwo+PiBvbiBhIEFtcGVyZSBFTUFHIHNlcnZlci4KPj4gCj4+IENvbW1pdCBmOTkyYjRkZmQ1 OGIgKCJhcm02NDoga3B0aTogQWRkIC0+ZW5hYmxlIGNhbGxiYWNrIHRvIHJlbWFwCj4+IHN3YXBw ZXIgdXNpbmcgbkcgbWFwcGluZ3MiKSB1cGRhdGVzIHRoZSBuRyBiaXQgcnVudGltZSBpZiBrcHRp IGlzCj4+IHJlcXVpcmVkLgo+PiAKPj4gQnV0IHRoaW5ncyBnZXQgd29yc2UgaWYgcm9kYXRhPWZ1 bGwgaW4gbWFwX21lbSgpLiBOT19CTE9DS19NQVBQSU5HUyB8Cj4+IE5PX0NPTlRfTUFQUElOR1Mg aXMgcmVxdWlyZWQgd2hlbiBjcmVhdGluZyBwYWdldGFibGUgbWFwcGluZy4gSGVuY2UgCj4+IGFs bAo+PiBwdGVzIGFyZSBmdWxseSBtYXBwZWQgaW4gdGhpcyBjYXNlLiBPbiBhIEFtcGVyZSBFTUFH IHNlcnZlciB3aXRoIDI1NkcKPj4gbWVtb3J5KHBhZ2VzaXplPTRrKSwgaXQgY2F1c2VzIHRoZSAx MHMgc3RhbGwuCj4+IAo+PiBBZnRlciBtb3ZpbmcgaW5pdF9jcHVfZmVhdHVyZXMoKSBhaGVhZCBv ZiBlYXJseV9maXhtYXBfaW5pdCgpLCB3ZSBjYW4gCj4+IHVzZQo+PiBjcHVfaGF2ZV9jb25zdF9j YXAgZWFybGllciB0aGFuIGJlZm9yZS4gSGVuY2Ugd2UgY2FuIGF2b2lkIHRoaXMgc3RhbGwKPj4g YnkgdXBkYXRpbmcgYXJtNjRfdXNlX25nX21hcHBpbmdzLgo+PiAKPj4gQWZ0ZXIgdGhpcyBwYXRj aCBzZXJpZXMsIGl0IHJlZHVjZXMgdGhlIGtlcm5lbCBib290IHRpbWUgZnJvbSAxNC43cyB0bwo+ PiA0LjFzOgo+PiBCZWZvcmU6Cj4+IFsgICAxNC43NTc1NjldIEZyZWVpbmcgaW5pdHJkIG1lbW9y eTogNjA3NTJLCj4+IEFmdGVyOgo+PiBbICAgIDQuMTM4ODE5XSBGcmVlaW5nIGluaXRyZCBtZW1v cnk6IDYwNzUySwo+PiAKPj4gU2V0IGl0IGFzIFJGQyBiZWNhdXNlIEkgd2FudCB0byByZXNvbHZl IGFueSBvdGhlciBwb2ludHMgd2hpY2ggSSBoYXZlCj4+IG1pc2NvbmVybmVkLgoKQnV0IHlvdSBk b24ndCByZWFsbHkgZXhwbGFpbiAqd2h5KiBoYXZpbmcgdGhlIENQVSBGZWF0dXJlIGRpc2NvdmVy eQplYXJseSBoZWxwcyBhdCBhbGwuIElzIHRoYXQgc28gdGhhdCB5b3UgY2FuIGJ5cGFzcyB0aGUg aWRtYXAgbWFwcGluZz8KSSdkIGV4cGVjdCBzb21ldGhpbmcgdGhhdCBleHBsYWluIHRoZSBwcm9i bGVtIGluc3RlYWQgb2YgcGFyYXBocmFzaW5nCnRoZSBwYXRjaGVzLgoKQW5vdGhlciB0aGluZyBp cyB3aGV0aGVyIHlvdSBoYXZlIHRlc3RlZCB0aGlzIG9uIHNvbWUgVGh1bmRlclggSFcKKHRoZSBm aXJzdCB2ZXJzaW9uLCBub3QgVFgyKSwgYXMgdGhpcyBpcyB0aGUgd2hvbGUgcmVhc29uIGZvciB0 aGlzCmNvZGUuLi4KClRoYW5rcywKCiAgICAgICAgIE0uCi0tIApKYXp6IGlzIG5vdCBkZWFkLiBJ dCBqdXN0IHNtZWxscyBmdW5ueS4uLgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX18KbGludXgtYXJtLWtlcm5lbCBtYWlsaW5nIGxpc3QKbGludXgtYXJtLWtl cm5lbEBsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxt YW4vbGlzdGluZm8vbGludXgtYXJtLWtlcm5lbAo=