From patchwork Wed Jan 15 14:28:58 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Will Deacon X-Patchwork-Id: 11334981 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 109BD13A0 for ; Wed, 15 Jan 2020 14:29:13 +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 E0886214AF for ; Wed, 15 Jan 2020 14:29:12 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="ZODIEtFa"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="lfcS5WmT" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E0886214AF Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.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:MIME-Version:Message-Id:Date:Subject:To :From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=GdM63AP7iDQE1i1pIJMSQQjxEvei/PdtbwSZI+UXSZk=; b=ZODIEtFa5F+0Em oXb3DTLGFjytfQx93fABwYqk4Cz93HiKRIH6F4B9CPuQAvxN0HJaRocwiVGMpxykL9nqSwrQpDC91 WL3qHgBB2+BbcDmdZUvX58VCxCAXbN6fXUQ0yOi8SKWaVYmDjbZStZfeaFUEdQdZwAGghfxFwH94l pM3QUGFZq5h86jMlKJwjhb/4UVmIEf4RQNldoEz/lqkkeGnyu66F3u08AZ3gsWv+HfnmrPBCJwZOy 8MMB3S0qH38bqFceB7YIpbZD6tEG7WGCBjoCIQMZ0skvQK2YBJVRWPZyA8J85hB8WZ70XWE9Q3XJO +bGbXJOp+F9xqV8+xcqw==; 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 1irjfU-0007Y4-0v; Wed, 15 Jan 2020 14:29:12 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1irjfP-0007X1-TA for linux-arm-kernel@lists.infradead.org; Wed, 15 Jan 2020 14:29:10 +0000 Received: from localhost.localdomain (236.31.169.217.in-addr.arpa [217.169.31.236]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 18F302073A; Wed, 15 Jan 2020 14:29:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579098547; bh=Hv+akzynYYjXAjpTmIgZOtomlLCLx3UqVKzVrZIUuzY=; h=From:To:Cc:Subject:Date:From; b=lfcS5WmT/wcXX/3llrbC04k9gvRw3g/Aqui84iscxn//zxZfnDiEgdK0r6a27+VPj J21hzli8F3s7Aj9jevPM49XPbSejPWnGd1n8y9wICq22SI1yTOgejQa15GjcxYkRIy vHGd0M/xYymmB2Ylpt324BElygQfO8dkeHSjLA70= From: Will Deacon To: broonie@kernel.org Subject: [PATCH 0/2] A couple of cleanups on top of for-next/e0pd Date: Wed, 15 Jan 2020 14:28:58 +0000 Message-Id: <20200115142900.28976-1-will@kernel.org> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200115_062907_961610_524E4455 X-CRM114-Status: GOOD ( 10.35 ) X-Spam-Score: -5.2 (-----) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-5.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [198.145.29.99 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.0 DKIMWL_WL_HIGH DKIMwl.org - Whitelisted High sender 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: kernel-team@android.com, Suzuki K Poulose , Marc Zyngier , Catalin Marinas , Will Deacon , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Hi Mark, I've queued the E0PD patches for 5.6 (thanks!), but in reading them a final time I noticed a couple of cleanups that I think we can make to kaslr_requires_kpti(). I don't have a TX1 to test them on, but I think the logic is sound. Please take a look, as I'd like to queue these on top. Thanks. Will Cc: Catalin Marinas Cc: Suzuki K Poulose Cc: Marc Zyngier --->8 Will Deacon (2): arm64: Simplify early check for broken TX1 when KASLR is enabled arm64: Use register field helper in kaslr_requires_kpti() arch/arm64/kernel/cpufeature.c | 21 +++++++-------------- 1 file changed, 7 insertions(+), 14 deletions(-) Reviewed-by: Catalin Marinas Acked-by: Suzuki K Poulose