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=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 299EAC55192 for ; Thu, 23 Apr 2020 09:56:01 +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 EA51620776 for ; Thu, 23 Apr 2020 09:56:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="bVkasMYc" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EA51620776 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:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=cjPLjRD31A8bdBLSy1g9hf6eJYQbOmyQ0e39cOdj8tI=; b=bVkasMYc5uCps4 rElM8hJrp3MuD5WNJqVrGxTwJQJPwOksFXH5O+Ohxg12dE3XQciCCHPoq99UlpA1lLEyhUz1l0mJ3 lgJhbaM4wu7OI2Xuhvqp99d7WRRfYpRDMeyY3mPTDU7Rc/mIAmdab1H1LQgptKIumPKpaDSqOwc/5 Zrn20t5CVxtf63UhDLj6baRlg3+zxBMvtY3Ylo5Hb5SxhDSANMRC3bND9QdgZ0Xi6dicHu9zNChMd Q8aMl0w3FQFgfBCwKIETPaxWuR3gaLTX+cvfWgtLMFXO63GYwxjBAslYWMHZf4gTnzB1A97VTYa3K C+LB7R58txUXF88f/hOg==; 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 1jRYaL-0006h4-5R; Thu, 23 Apr 2020 09:55:57 +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 1jRYZy-0006XH-Gi for linux-arm-kernel@lists.infradead.org; Thu, 23 Apr 2020 09:55:38 +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 E9B2B31B; Thu, 23 Apr 2020 02:55:33 -0700 (PDT) Received: from gaia (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 39ECC3F68F; Thu, 23 Apr 2020 02:55:33 -0700 (PDT) Date: Thu, 23 Apr 2020 10:55:31 +0100 From: Catalin Marinas To: Will Deacon Subject: Re: [PATCH] arm64: docs: Mandate that the I-cache doesn't hold stale kernel text Message-ID: <20200423095530.GB4963@gaia> References: <20200423093658.10602-1-will@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200423093658.10602-1-will@kernel.org> User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200423_025536_091441_6EABBD7F X-CRM114-Status: GOOD ( 10.30 ) 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 , kernel-team@android.com, 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 Thu, Apr 23, 2020 at 10:36:58AM +0100, Will Deacon wrote: > Although we require that the loaded kernel Image has been cleaned to the > PoC, we neglect to spell out the state of the I-cache. Although this > should be reasonably obvious, it doesn't hurt to be explicit. > > Require that the I-cache doesn't hold any stale entries for the kernel > Image at boot. > > Cc: Mark Rutland > Cc: Catalin Marinas > Signed-off-by: Will Deacon Acked-by: Catalin Marinas _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel