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=-1.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, URIBL_BLOCKED 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 50416C04EB8 for ; Mon, 10 Dec 2018 20:30:56 +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 1DC2B20672 for ; Mon, 10 Dec 2018 20:30:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="DGW1ZTCj" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1DC2B20672 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=qrnqzrdIAe9MY1kCdinRywVA5T2ZA8gCeaeGVY0vLVY=; b=DGW1ZTCjAtlDX5 s/jkRLbZdXTo/TntYp1ARtu39SOx41jm51oeIhCyvYunV8ZzG+ZyuT/2aSlDtDz2KTqeDpZw9ysuI Z0jw20QfEfUNW47cv9pqqgtTfxS8ZOtbrXy4qxzbUpQAfDFk8J6BR7dIHfW+5yBrTR2d5u214jzvL eu6Z/MZS7khAho6Z+6oGOl24Nu96xLGVwVThllVm+cS9Q0LWdNa+OGoVh/eVTYxkIyPkobuVk7XSy wdqb/1y2DKgKXlh4zV3ijsg2UvgVROKnt4O4kIuAPDhVVTf711xj1r9nfyiQ8zUfFkryhfQlzXb/8 bi6dqfTvbd2yalDMAK5Q==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gWSCa-00013X-Fk; Mon, 10 Dec 2018 20:30:52 +0000 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70] helo=foss.arm.com) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gWSCX-00012S-49 for linux-arm-kernel@lists.infradead.org; Mon, 10 Dec 2018 20:30:50 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id B0DEDEBD; Mon, 10 Dec 2018 12:30:37 -0800 (PST) Received: from [10.1.197.21] (usa-sjc-imap-foss1.foss.arm.com [10.72.51.249]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id B7D433F59C; Mon, 10 Dec 2018 12:30:34 -0800 (PST) Subject: Re: [PATCH v6 04/13] arm64/kvm: hide ptrauth from guests To: Richard Henderson References: <20181207183931.4285-1-kristina.martsenko@arm.com> <20181207183931.4285-5-kristina.martsenko@arm.com> <57966497-d21c-5439-e4ba-d75f5552282f@linaro.org> <1f179017-4237-0d36-7adc-0a1470b5fd46@linaro.org> From: Kristina Martsenko Message-ID: <60a6ca4b-cfe9-1ed3-dce6-9f58575240ba@arm.com> Date: Mon, 10 Dec 2018 20:30:33 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.3.0 MIME-Version: 1.0 In-Reply-To: <1f179017-4237-0d36-7adc-0a1470b5fd46@linaro.org> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181210_123049_172973_47BD3E05 X-CRM114-Status: GOOD ( 13.86 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Andrew Jones , linux-kernel@vger.kernel.org, Jacob Bramley , Ard Biesheuvel , Marc Zyngier , Catalin Marinas , Adam Wallis , Suzuki K Poulose , Will Deacon , Christoffer Dall , kvmarm@lists.cs.columbia.edu, Cyrill Gorcunov , Ramana Radhakrishnan , Amit Kachhap , Dave P Martin , linux-arm-kernel@lists.infradead.org, Kees Cook 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 10/12/2018 20:22, Richard Henderson wrote: > On 12/10/18 2:12 PM, Kristina Martsenko wrote: >> The plan was to disable trapping, yes. However, after that thread there >> was a retrospective change applied to the architecture, such that the >> XPACLRI (and XPACD/XPACI) instructions are no longer trapped by >> HCR_EL2.API. (The public documentation on this has not been updated >> yet.) This means that no HINT-space instructions should trap anymore. > > Ah, thanks for the update. I'll update my QEMU patch set. > >>> It seems like the header comment here, and >> Sorry, which header comment? > > Sorry, the patch commit message. Ah ok. Still seems correct. Kristina _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel