From patchwork Mon Apr 27 06:25:02 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Amit Daniel Kachhap X-Patchwork-Id: 11511205 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 530E1912 for ; Mon, 27 Apr 2020 06:25:36 +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 2C1EB206B6 for ; Mon, 27 Apr 2020 06:25:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="bSuJz+ad" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2C1EB206B6 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+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:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To: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:List-Owner; bh=utDVnDKN6xm+W0jaqRNWZnupC3Jkqa4QFmRSvLQhWq4=; b=bSuJz+adKRtHAK4zdlgTEYMSLv nMN5tSBBgQfpUF/dWOOLDxbKfDBZXZkZsZ0wI2yCQsw3CPJHDerjI1sQkdbMDnxbsAMrweUs/PO28 TIJnR+gx8CbByOQO55GaUevxCcmm7gJkEwrJaySOjcFISrrBcaGy++aQLxXNH3t6ruAb7ARIe4ABv peV94E+mMh23ZJiqfpYa2r4kJictFyaGaZitxoQnUliygDcUSrvny6TB51k3olJB4L/W1kT2wH7Ii VV+YoYmAio6Qx3l2VQWGB8ee+dWDHzPP7CmL9prcMJPa6EsUtBKJGy1eukSgmVAFRRKAZ6WAZPfox +0NTDKjw==; 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 1jSxCt-00035s-88; Mon, 27 Apr 2020 06:25:31 +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 1jSxCi-0002wn-5R; Mon, 27 Apr 2020 06:25:23 +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 231001063; Sun, 26 Apr 2020 23:25:19 -0700 (PDT) Received: from a075553-lin.blr.arm.com (a075553-lin.blr.arm.com [10.162.17.24]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id D85A13F73D; Sun, 26 Apr 2020 23:25:15 -0700 (PDT) From: Amit Daniel Kachhap To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 2/2] Documentation/vmcoreinfo: Add documentation for 'KERNELPACMASK' Date: Mon, 27 Apr 2020 11:55:02 +0530 Message-Id: <1587968702-19996-2-git-send-email-amit.kachhap@arm.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1587968702-19996-1-git-send-email-amit.kachhap@arm.com> References: <1587968702-19996-1-git-send-email-amit.kachhap@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200426_232521_700378_94AFB276 X-CRM114-Status: UNSURE ( 8.48 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [217.140.110.172 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 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 , Baoquan He , Catalin Marinas , Bhupesh Sharma , Dave Young , kexec@lists.infradead.org, linux-kernel@vger.kernel.org, James Morse , Amit Daniel Kachhap , Vincenzo Frascino , Will Deacon MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Add documentation for KERNELPACMASK variable being added to the vmcoreinfo. It indicates the PAC bits mask information of signed kernel pointers if Armv8.3-A Pointer Authentication feature is present. Cc: Catalin Marinas Cc: Will Deacon Cc: Mark Rutland Cc: Dave Young Cc: Baoquan He Signed-off-by: Amit Daniel Kachhap --- Documentation/admin-guide/kdump/vmcoreinfo.rst | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/admin-guide/kdump/vmcoreinfo.rst b/Documentation/admin-guide/kdump/vmcoreinfo.rst index 007a6b8..5cc3ee6 100644 --- a/Documentation/admin-guide/kdump/vmcoreinfo.rst +++ b/Documentation/admin-guide/kdump/vmcoreinfo.rst @@ -393,6 +393,12 @@ KERNELOFFSET The kernel randomization offset. Used to compute the page offset. If KASLR is disabled, this value is zero. +KERNELPACMASK +------------- + +Indicates the PAC bits mask information if Pointer Authentication is +enabled and address authentication feature is present. + arm ===