Received: by 2002:a05:6a10:a0d1:0:0:0:0 with SMTP id j17csp3111555pxa; Tue, 18 Aug 2020 06:59:40 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxLujcA1l57DIpqVMhaz1O9BBcaseqs3kPZtc299eJ0E57OezmchUtbIvJuUu5eyAk+Pigu X-Received: by 2002:a17:906:fa19:: with SMTP id lo25mr20104882ejb.456.1597759180124; Tue, 18 Aug 2020 06:59:40 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1597759180; cv=none; d=google.com; s=arc-20160816; b=gNWf+tmDnwkvjmEWEd5Gl19EYZjmgdTL7/LITM3s7tMNj9DNy3tizKx+IRJMNyC0oS pO9sj82fy/z5JZRMBRVBR+tTeOb7qcnJSnOvivzmZs9eu1A1H7+mJXMtbJZPDhmtMnee 69hw0jiQazfkEJqGOdeknHRqpAT6T7DuWKtF3NRZW9No4cEPqlEoXHX51MyKK/Nq+8NQ lJo80C/0hwNxITsvRYZjgFD6jNWuNGoKWzLVkfZPSiu87YgfbU8c9ds4TlEjqvppwBwX 07JJfru4okbk3+RBvkDuGKRs9RlSc+XYZ9jXYYMeo+mhmAC+hKnAFB7HuPFXgKVvjQhi EtBw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:date:message-id:subject:references :in-reply-to:cc:to:from; bh=VO5rS75g2jJASvcKpAjAW38atIMJwcoA8YHK9t/LYWk=; b=X8l6jsg/QAKfaDKaL+lZqj4daMQKBwbPMd8bsOOgcOi3Iw1zcRWA6S0Ps8caHKu04T usGNQt0P6ENlnxrwFDOJvqMYm75QB4tujHY1YyYk6ek77QZx2VBtvNXCWdTnBlqZurE0 lm/xeQ2TLC1s7k1CyaJRw67TB1YI+s3OYx/ImUxZVJ43a4xC65dOJRSo95I2oyPhMkpj RCw1hL2C/IKzTnA4EzZArPjZ/kz0IaFpNR8ZdWbDcOf62yn7+plaOrZjfEDYfeRnEXXB xPQ5AYJR7DDEqLffryqGXCufDc2yqbaamoxB2efHSUe8jPy6wiVoFr9PcOVpviNhO08u 3WmQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id t12si12975372ejj.713.2020.08.18.06.59.16; Tue, 18 Aug 2020 06:59:40 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726943AbgHRN6Y (ORCPT + 99 others); Tue, 18 Aug 2020 09:58:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46746 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726709AbgHRN6W (ORCPT ); Tue, 18 Aug 2020 09:58:22 -0400 Received: from ozlabs.org (bilbo.ozlabs.org [IPv6:2401:3900:2:1::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 82CA8C061389 for ; Tue, 18 Aug 2020 06:58:22 -0700 (PDT) Received: by ozlabs.org (Postfix, from userid 1034) id 4BWCDW3NB1z9sTS; Tue, 18 Aug 2020 23:58:19 +1000 (AEST) From: Michael Ellerman To: Paul Mackerras , Christophe Leroy , Michael Ellerman , Benjamin Herrenschmidt Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org In-Reply-To: <6eddca2d5611fd57312a88eae31278c87a8fc99d.1596641224.git.christophe.leroy@csgroup.eu> References: <6eddca2d5611fd57312a88eae31278c87a8fc99d.1596641224.git.christophe.leroy@csgroup.eu> Subject: Re: [PATCH] powerpc/kasan: Fix KASAN_SHADOW_START on BOOK3S_32 Message-Id: <159775907943.1766076.16539291819681115078.b4-ty@ellerman.id.au> Date: Tue, 18 Aug 2020 23:58:19 +1000 (AEST) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 5 Aug 2020 15:27:29 +0000 (UTC), Christophe Leroy wrote: > On BOOK3S_32, when we have modules and strict kernel RWX, modules > are not in vmalloc space but in a dedicated segment that is > below PAGE_OFFSET. > > So KASAN_SHADOW_START must take it into account. > > MODULES_VADDR can't be used because it is not defined yet > in kasan.h Applied to powerpc/fixes. [1/1] powerpc/kasan: Fix KASAN_SHADOW_START on BOOK3S_32 https://git.kernel.org/powerpc/c/48d2f0407be7a36e8f20be37ec9121e021ef3964 cheers