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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 042CFEB64DC for ; Mon, 17 Jul 2023 11:43:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Subject:CC: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=Fbevqf95qVLjMSmKdzwYc9lDeF6gdjOnxe1dBHaxxlM=; b=F6qlWPc6w5c+wj e81e6N2Kv643FcDe9QNjiRIXs2ofCMgrz9RSLYr9Ht44dumSGJpAH+Opesp8cPsiylaEOtOw7NTjN k0KkD+hBqxAeqZv1UAIln85kK/bCf0wuyE8VkKa/8EChR9WmTGDbDRJIW5NyYo4KLm0sWft8LkAXe W1YIAm7PmXQcEDmIjEnez28vuMKu8YcK4dLrmSvFtR6H3VklTCJeDCLV8KSN0NvJW+6aj0CiLOrPL jqfZxW/wWMoJkf1hjDhHyNLy+IPoNc2w7gJ9PF2Z9m/HNKeD+qf6ls+Er8MySPmx/YEXfkp5lu/Aw 76yEvcBPlm+OCbVvQCBg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qLMdB-003tP2-2d; Mon, 17 Jul 2023 11:43:10 +0000 Received: from frasgout.his.huawei.com ([185.176.79.56]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qLMd0-003tL5-0U; Mon, 17 Jul 2023 11:43:06 +0000 Received: from lhrpeml500005.china.huawei.com (unknown [172.18.147.207]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4R4Kqp1Psbz67Lnh; Mon, 17 Jul 2023 19:39:34 +0800 (CST) Received: from localhost (10.202.227.76) by lhrpeml500005.china.huawei.com (7.191.163.240) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.27; Mon, 17 Jul 2023 12:42:48 +0100 Date: Mon, 17 Jul 2023 12:42:47 +0100 From: Jonathan Cameron To: Mark Brown CC: Catalin Marinas , Will Deacon , Jonathan Corbet , Andrew Morton , Marc Zyngier , Oliver Upton , James Morse , "Suzuki K Poulose" , Arnd Bergmann , "Oleg Nesterov" , Eric Biederman , "Kees Cook" , Shuah Khan , "Rick P. Edgecombe" , Deepak Gupta , Ard Biesheuvel , Szabolcs Nagy , "H.J. Lu" , Paul Walmsley , Palmer Dabbelt , Albert Ou , , , , , , , , , Subject: Re: [PATCH 04/35] arm64/gcs: Document the ABI for Guarded Control Stacks Message-ID: <20230717124247.00001f1c@Huawei.com> In-Reply-To: <20230716-arm64-gcs-v1-4-bf567f93bba6@kernel.org> References: <20230716-arm64-gcs-v1-0-bf567f93bba6@kernel.org> <20230716-arm64-gcs-v1-4-bf567f93bba6@kernel.org> Organization: Huawei Technologies Research and Development (UK) Ltd. X-Mailer: Claws Mail 4.1.0 (GTK 3.24.33; x86_64-w64-mingw32) MIME-Version: 1.0 X-Originating-IP: [10.202.227.76] X-ClientProxiedBy: lhrpeml500004.china.huawei.com (7.191.163.9) To lhrpeml500005.china.huawei.com (7.191.163.240) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230717_044300_964746_265D2F90 X-CRM114-Status: UNSURE ( 8.16 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On Sun, 16 Jul 2023 22:51:00 +0100 Mark Brown wrote: > Add some documentation of the userspace ABI for Guarded Control Stacks. > > Signed-off-by: Mark Brown Hi Mark, Nice document. All I could find on a first read was one typo... ... > +7. ptrace extensions > +--------------------- > + > +* A new regset NT_ARM_GCS is defined for use with PTRACE_GETREGSET and > + PTRACE_SETREGSET. > + > +* Due to the complexity surrounding allocation and deallocation of stakcs and stacks > + lack of practical application changes to the GCS configuration via ptrace > + are not supported. > + _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv