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=-2.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 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 0DCBAC2BA19 for ; Mon, 13 Apr 2020 03:40:09 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id D0AA4206D8 for ; Mon, 13 Apr 2020 03:40:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="hP88mapK" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D0AA4206D8 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-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=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date: Message-ID:From:References:To:Subject:Reply-To:Content-ID:Content-Description :Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=FQolch3OfX7fpk8HXvRYoN6Fe5zLXFbJue0vJh/+Ljw=; b=hP88mapK21eaOY UuaH9F25J6vUqPJfUdVo5SbDw4YwPilEktjZTcxNXxDIBw9tNbIOyV1um58KONc7VgDGmzaG2vHXF J9+hOJeGgqxx6sZnbtI6axSTiFFRHIT1f1l6x2zF3LOAdpKxJk2ep0YDjRYg3uOLwO/1fbFSCZS3y re5+sMgyZIuYrGDNM01nouqmHd6D6ZjxwRopCv65MBfGTbJgm5vg9wNbfsNnXE1wuvIKgCs1SKar/ loTraTW7Su5glmQDaaF2oEXLpoAxcpRVusfmI6HIGns/ZfiNrzGZ73sNXoIuKQIxEFxz92Pr9zwUY 5CLUpF18BDRh/wXeVGqA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jNpx9-0005SP-Vn; Mon, 13 Apr 2020 03:40:07 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jNpx6-0004Yj-Qs for linux-arm-kernel@lists.infradead.org; Mon, 13 Apr 2020 03:40:06 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id EB47630E; Sun, 12 Apr 2020 20:40:03 -0700 (PDT) Received: from [10.163.1.49] (unknown [10.163.1.49]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 8DFCC3F6C4; Sun, 12 Apr 2020 20:40:00 -0700 (PDT) Subject: Re: [PATCH 5/6] arm64/cpufeature: Drop TraceFilt feature exposure from ID_DFR0 register To: Will Deacon , Suzuki K Poulose References: <1580215149-21492-1-git-send-email-anshuman.khandual@arm.com> <1580215149-21492-6-git-send-email-anshuman.khandual@arm.com> <20200409125255.GA13078@willie-the-truck> From: Anshuman Khandual Message-ID: <42122aa6-9cce-c45e-d67f-f672badce675@arm.com> Date: Mon, 13 Apr 2020 09:09:52 +0530 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <20200409125255.GA13078@willie-the-truck> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200412_204004_920363_163F8627 X-CRM114-Status: GOOD ( 10.57 ) 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@arm.com, catalin.marinas@arm.com, linux-kernel@vger.kernel.org, james.morse@arm.com, maz@kernel.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 04/09/2020 06:23 PM, Will Deacon wrote: > On Fri, Mar 20, 2020 at 06:19:21PM +0000, Suzuki K Poulose wrote: >> On 01/28/2020 12:39 PM, Anshuman Khandual wrote: >>> ID_DFR0 based TraceFilt feature should not be exposed. >> >> ... to guests. >> >> Hence lets drop it. >> >> Reviewed-by: Suzuki K Poulose > > Hmm, doesn't dropping cause it to become NONSTRICT? In general, I'd prefer > that we list all fields in these tables, rather than have implicit behaviour > in their absence. Just trying to understand, so we should just leave it unchanged. ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, 28, 4, 0) > > Will > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel