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=-17.4 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_IN_DEF_DKIM_WL 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 9F98BC4727E for ; Thu, 1 Oct 2020 21:57:23 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 2DEAA206FC for ; Thu, 1 Oct 2020 21:57:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="Qy1x+J2U" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2DEAA206FC Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id A99A16B0062; Thu, 1 Oct 2020 17:57:22 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id A6F1C6B0068; Thu, 1 Oct 2020 17:57:22 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 984276B006C; Thu, 1 Oct 2020 17:57:22 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0141.hostedemail.com [216.40.44.141]) by kanga.kvack.org (Postfix) with ESMTP id 6CC7B6B0062 for ; Thu, 1 Oct 2020 17:57:22 -0400 (EDT) Received: from smtpin08.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id F1429181AE873 for ; Thu, 1 Oct 2020 21:57:21 +0000 (UTC) X-FDA: 77324718282.08.steam17_5b05f662719e Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin08.hostedemail.com (Postfix) with ESMTP id D32821819E621 for ; Thu, 1 Oct 2020 21:57:21 +0000 (UTC) X-HE-Tag: steam17_5b05f662719e X-Filterd-Recvd-Size: 4768 Received: from mail-pf1-f194.google.com (mail-pf1-f194.google.com [209.85.210.194]) by imf41.hostedemail.com (Postfix) with ESMTP for ; Thu, 1 Oct 2020 21:57:21 +0000 (UTC) Received: by mail-pf1-f194.google.com with SMTP id k13so5983223pfg.1 for ; Thu, 01 Oct 2020 14:57:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=7vBVgkba9wR9rMzobTFcbe2FRbrTf2j7jPc/dQj28oc=; b=Qy1x+J2UXRT1xz2r7wKgRtNB1F4SYnCGvzWgd26HhDRfcJr5xRouppP6ZWTiuCc6Cx So404fYI4qWpTcEmcwCsqWAOAVMHLWpwfvpKKjZLHqMaPJhaHIC6GJlM6OoiyqpeYP3Y 8+ZIL/Mu7VA7aTeF2dXkfNfXJ8CcRbbhIuxrI8G7JWsYlq1eZLiNiBHWdRnjI2k0pIIV niGwQi8egbLlBCdpeCOCYiVuz2OQ9zI01dk6pVJec4cOhEZq8958HWjrT9stMBGWUx+n BfzvxvsTOtcEoiVWPpioLnVRFXZs5KnakOVvvvikTbh2+eT9bnor5KoZ+CsXIv8sqRtE uZNw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=7vBVgkba9wR9rMzobTFcbe2FRbrTf2j7jPc/dQj28oc=; b=fRXbTUADA2cDuggkwUxsr807yI2iIlzqGfwXGVg1VhkHcXpjia2Y4pA9YwfeYwPJpI 8ZqTO/KX7xrQKQ/rp3mUVpPobkMtt99x/uv/DaxajjxcTxaPvYOmL/Usk8sKnoTNbSFE wTnYTsb/xQ5OnP2Sf6dgLY8BzekodnoryZNoGL2JMNnuWL7G6oCeoYsPnskqDVN+dcvR LXKwXwK58DErbKvjyxn04gT0SF04N2NmyZO8UcVYndJAP7z5JKA4wJyOwU6bPOfZUUYm mHLJOJj13uvcTdEt6iiNa6OCiIWbEo3tNb7gAcQBEhvCCRO+STTvn15IRnINXN9OuBY6 K4QA== X-Gm-Message-State: AOAM530KXcFwasG7w6bbpO8ht8vMMYTJQ3Zs/OSNcxht0KvMPXBJxOw9 qcSpdmRFkRKGj5jQWMg9aWZJU/OMTTYJe+6IBSkvEA== X-Google-Smtp-Source: ABdhPJxBh2MTvD8EqS7uOHLoI01aNYVR8yybqeNK39O4VqSoTBwTqx0glwK0sWgJz6QKEWqjvaypPBIYu3G6Qbn+v7M= X-Received: by 2002:a17:902:d716:b029:d3:8e2a:1b5d with SMTP id w22-20020a170902d716b02900d38e2a1b5dmr4556745ply.85.1601589440484; Thu, 01 Oct 2020 14:57:20 -0700 (PDT) MIME-Version: 1.0 References: <20201001175539.GQ4162920@elver.google.com> In-Reply-To: <20201001175539.GQ4162920@elver.google.com> From: Andrey Konovalov Date: Thu, 1 Oct 2020 23:57:09 +0200 Message-ID: Subject: Re: [PATCH v3 21/39] kasan: don't allow SW_TAGS with ARM64_MTE To: Marco Elver Cc: Dmitry Vyukov , Vincenzo Frascino , Catalin Marinas , kasan-dev , Andrey Ryabinin , Alexander Potapenko , Evgenii Stepanov , Elena Petrova , Branislav Rankov , Kevin Brodsky , Will Deacon , Andrew Morton , Linux ARM , Linux Memory Management List , LKML Content-Type: text/plain; charset="UTF-8" X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Thu, Oct 1, 2020 at 7:55 PM wrote: > > Does that patch title need an ", arm64" in it, like the others? Yes, will fix in v4, thanks! > > On Fri, Sep 25, 2020 at 12:50AM +0200, Andrey Konovalov wrote: > > Software tag-based KASAN provides its own tag checking machinery that > > can conflict with MTE. Don't allow enabling software tag-based KASAN > > when MTE is enabled. > > > > Signed-off-by: Andrey Konovalov > > Signed-off-by: Vincenzo Frascino > > Reviewed-by: Catalin Marinas > > --- > > Change-Id: Icd29bd0c6b1d3d7a0ee3d50c20490f404d34fc97 > > --- > > arch/arm64/Kconfig | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig > > index e7450fbd0aa7..e875db8e1c86 100644 > > --- a/arch/arm64/Kconfig > > +++ b/arch/arm64/Kconfig > > @@ -131,7 +131,7 @@ config ARM64 > > select HAVE_ARCH_JUMP_LABEL > > select HAVE_ARCH_JUMP_LABEL_RELATIVE > > select HAVE_ARCH_KASAN if !(ARM64_16K_PAGES && ARM64_VA_BITS_48) > > - select HAVE_ARCH_KASAN_SW_TAGS if HAVE_ARCH_KASAN > > + select HAVE_ARCH_KASAN_SW_TAGS if (HAVE_ARCH_KASAN && !ARM64_MTE) > > select HAVE_ARCH_KGDB > > select HAVE_ARCH_MMAP_RND_BITS > > select HAVE_ARCH_MMAP_RND_COMPAT_BITS if COMPAT > > -- > > 2.28.0.681.g6f77f65b4e-goog > >