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 005EFC433FE for ; Wed, 23 Feb 2022 15:28:46 +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:In-Reply-To:MIME-Version:References: 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=IL3sSZ7bzu+/p/JoPnlxr8GPhaJUAA8hD4B6ttJSF4Y=; b=gUSPqoeI9iaFk0 xuMAwioLkorsT3HqCGoc2t2JKZR3GgG5mclCSXAAeXWTUDeK07paAWpWNdXgJY0IEoAsaBAJTbw4W eoFgIGWVmbhhvF+Bt8CJbb2btES42lMe0k3lR2kdx2oKMpcUGJ29Orq+Cg5LPcgqh0jW4JCr5mv24 /oqKxIBz1wczf7FQXFNsbIgT3FO5pOUjcgqmqiz3ANw/gs8Yfr/knXyMNcsBmcH6WncTO0dytG+rv NuRKMQVB508rG5fFEKFPgHZ5jLlJYAckOJ3bfyJbCtLSjb2Kxk92fV1jO1VmPFsnEdEDOo9haBHU1 IxwzMMpyQtLoxiEQ1UYA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nMtYI-00F1IO-Qq; Wed, 23 Feb 2022 15:27:39 +0000 Received: from ams.source.kernel.org ([2604:1380:4601:e00::1]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nMtYD-00F1G7-Ap for linux-arm-kernel@lists.infradead.org; Wed, 23 Feb 2022 15:27:34 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id E18D9B8207A; Wed, 23 Feb 2022 15:27:31 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B22BEC340E7; Wed, 23 Feb 2022 15:27:27 +0000 (UTC) Date: Wed, 23 Feb 2022 15:27:24 +0000 From: Catalin Marinas To: Mark Brown Cc: Will Deacon , Marc Zyngier , Shuah Khan , Shuah Khan , Alan Hayward , Luis Machado , Salil Akerkar , Basant Kumar Dwivedi , Szabolcs Nagy , James Morse , Alexandru Elisei , Suzuki K Poulose , linux-arm-kernel@lists.infradead.org, linux-kselftest@vger.kernel.org, kvmarm@lists.cs.columbia.edu Subject: Re: [PATCH v11 23/40] arm64/sme: Add ptrace support for ZA Message-ID: References: <20220207152109.197566-1-broonie@kernel.org> <20220207152109.197566-24-broonie@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20220207152109.197566-24-broonie@kernel.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220223_072733_540761_13031CD1 X-CRM114-Status: GOOD ( 15.72 ) X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, Feb 07, 2022 at 03:20:52PM +0000, Mark Brown wrote: > The ZA array can be read and written with the NT_ARM_ZA. Similarly to > our interface for the SVE vector registers the regset consists of a > header with information on the current vector length followed by an > optional register data payload, represented as for signals as a series > of horizontal vectors from 0 to VL/8 in the endianness independent > format used for vectors. > > On get if ZA is enabled then register data will be provided, otherwise > it will be omitted. On set if register data is provided then ZA is > enabled and initialized using the provided data, otherwise it is > disabled. > > Signed-off-by: Mark Brown The patch looks fine to be but I'd like Luis to look at the ptrace ABI in this series. Reviewed-by: Catalin Marinas _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel