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=-5.3 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham 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 948B9C3F68F for ; Thu, 13 Feb 2020 11:36:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 66A5120848 for ; Thu, 13 Feb 2020 11:36:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=c-s.fr header.i=@c-s.fr header.b="bNiPg8Ec" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729931AbgBMLgb (ORCPT ); Thu, 13 Feb 2020 06:36:31 -0500 Received: from pegase1.c-s.fr ([93.17.236.30]:35252 "EHLO pegase1.c-s.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729772AbgBMLga (ORCPT ); Thu, 13 Feb 2020 06:36:30 -0500 Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id 48JDx81Mdxz9vC0r; Thu, 13 Feb 2020 12:36:28 +0100 (CET) Authentication-Results: localhost; dkim=pass reason="1024-bit key; insecure key" header.d=c-s.fr header.i=@c-s.fr header.b=bNiPg8Ec; dkim-adsp=pass; dkim-atps=neutral X-Virus-Scanned: Debian amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [192.168.12.234]) (amavisd-new, port 10024) with ESMTP id VwdZhkCoNCGT; Thu, 13 Feb 2020 12:36:28 +0100 (CET) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 48JDx80GCPz9vC0q; Thu, 13 Feb 2020 12:36:28 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=c-s.fr; s=mail; t=1581593788; bh=JI/l0B6oz142zI0BvEjYO3SlgbYPDoynj43XnCUS9yE=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=bNiPg8EcysRQB4ODi9z7nh+YEqqtH1BrWwsAe/FKsSCltCYZgXx4GKUzvP60xSyto PKEktQpridUB5saxEPQVV2sh7RP5SSpiWNdwr+sDZMHXHQr2tuin1mILW61TzIkif0 XHRKxeUKZsgVxvRBqzflGslRYSmi1eI5kILvJoxc= Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 3C8578B841; Thu, 13 Feb 2020 12:36:29 +0100 (CET) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id AepsZRA2KoQk; Thu, 13 Feb 2020 12:36:29 +0100 (CET) Received: from [192.168.4.90] (unknown [192.168.4.90]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 6797F8B83F; Thu, 13 Feb 2020 12:36:28 +0100 (CET) Subject: Re: [PATCH v7 4/4] powerpc: Book3S 64-bit "heavyweight" KASAN support To: Daniel Axtens , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, kasan-dev@googlegroups.com, aneesh.kumar@linux.ibm.com, bsingharora@gmail.com Cc: Michael Ellerman References: <20200213004752.11019-1-dja@axtens.net> <20200213004752.11019-5-dja@axtens.net> From: Christophe Leroy Message-ID: Date: Thu, 13 Feb 2020 12:36:28 +0100 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 MIME-Version: 1.0 In-Reply-To: <20200213004752.11019-5-dja@axtens.net> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: fr Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Le 13/02/2020 à 01:47, Daniel Axtens a écrit : > diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig > index 497b7d0b2d7e..f1c54c08a88e 100644 > --- a/arch/powerpc/Kconfig > +++ b/arch/powerpc/Kconfig > @@ -169,7 +169,9 @@ config PPC > select HAVE_ARCH_HUGE_VMAP if PPC_BOOK3S_64 && PPC_RADIX_MMU > select HAVE_ARCH_JUMP_LABEL > select HAVE_ARCH_KASAN if PPC32 > + select HAVE_ARCH_KASAN if PPC_BOOK3S_64 && PPC_RADIX_MMU That's probably detail, but as it is necessary to deeply define the HW when selecting that (I mean giving the exact amount of memory and with restrictions like having a wholeblock memory), should it also depend of EXPERT ? > select HAVE_ARCH_KASAN_VMALLOC if PPC32 > + select HAVE_ARCH_KASAN_VMALLOC if PPC_BOOK3S_64 && PPC_RADIX_MMU Maybe we could have - select HAVE_ARCH_KASAN_VMALLOC if PPC32 + select HAVE_ARCH_KASAN_VMALLOC if HAVE_ARCH_KASAN > select HAVE_ARCH_KGDB > select HAVE_ARCH_MMAP_RND_BITS > select HAVE_ARCH_MMAP_RND_COMPAT_BITS if COMPAT Christophe