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 0B42DC3DA7F for ; Wed, 31 Jul 2024 08:58:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=uQZx3HYYVNB5vITecawH5G+5vDqAKVo5qs6yg+kY8es=; b=u6r3ucyxTAZaLpj0QPQdJdFLBV uFXhvo3ou1SepKGMokkgsHMw43SlaVYwBEGqIJddMzHZxKGq7FxoIxnMKO29xsyGyGfEmKO7vR6mz aVgBD0F6jg3Er9iqYdaPeWkDPM+3okV2QpkIqpk6M+I7hXd1yN0Yj0fxFBaNrEw4JB6G76vARgeof nTMh1EZWR6UFJMIUJHaF9n3ZwVpw24LGKsEpnMlioBnqG+TS5DGG3pwuKo2kb7krfXrMgzA2h6/6F Ha6SCDexbTuWqquqB1WB0Ag+qSSpQf1koCcYkuP2EdS/NIOg0eGJ4+HGiFDDjnjWKqF9LlTUa2k3u K28OVJTA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sZ5A6-00000000P8J-1hri; Wed, 31 Jul 2024 08:58:22 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sZ59X-00000000OuD-0JLG; Wed, 31 Jul 2024 08:57:48 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 5B75762295; Wed, 31 Jul 2024 08:57:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5DC84C116B1; Wed, 31 Jul 2024 08:57:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1722416266; bh=hopejYkFDlRXosQSrN9FNvd2qXYNt97CgMPgExHWjLE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=kgcv9F/j4hbv4sY33GK6d58MNdprg7Tk6x7Afte7Yvm+pO9ukFm6JSZHFhVrQctV8 HCJvnQ2SmAqj0sAQJBgaQF2tt0TOI5PcJu9v2fmRxV2XUWaFGKRqLMu52qnFc79kh9 OZIH/2SJJc8An60ZA3qB06AemJlpRn3qE0hIldQMIveR5FOpyQA8u8NtVxm3+jHQKb ZIR6/5PDzOSoOQ9rfNdotTn6qFvjblvNuBAip+B091FmD2fG07ijLMGLRyGcJCwF7M F0eioAeNeRBymaNwU7QnKVLzgg6Jy9Kkg6kC/bxm0G3R6V0OdCYTZd0D5ASDSWuS9d gv5IYS+rqKdFw== Date: Wed, 31 Jul 2024 09:57:39 +0100 From: Simon Horman To: Liju-clr Chen Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jonathan Corbet , Catalin Marinas , Will Deacon , Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , Richard Cochran , Matthias Brugger , AngeloGioacchino Del Regno , Yingshiuan Pan , Ze-yu Wang , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-trace-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-mediatek@lists.infradead.org, Shawn Hsiao , PeiLun Suei , Chi-shen Yeh , Kevenny Hsieh Subject: Re: [PATCH v12 11/24] virt: geniezone: Add ioeventfd support Message-ID: <20240731085739.GO1967603@kernel.org> References: <20240730082436.9151-1-liju-clr.chen@mediatek.com> <20240730082436.9151-12-liju-clr.chen@mediatek.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240730082436.9151-12-liju-clr.chen@mediatek.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240731_015747_206022_661687E7 X-CRM114-Status: GOOD ( 12.76 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org On Tue, Jul 30, 2024 at 04:24:23PM +0800, Liju-clr Chen wrote: > From: Yingshiuan Pan > > Ioeventfd leverages eventfd to provide asynchronous notification > mechanism for VMM. VMM can register a mmio address and bind with an > eventfd. Once a mmio trap occurs on this registered region, its > corresponding eventfd will be notified. > > Signed-off-by: Yingshiuan Pan > Signed-off-by: Yi-De Wu > Signed-off-by: Liju Chen ... > diff --git a/drivers/virt/geniezone/gzvm_ioeventfd.c b/drivers/virt/geniezone/gzvm_ioeventfd.c ... > +/** > + * ioeventfd_check_collision() - Check collison assumes gzvm->ioevent_lock held. nit: collision Likewise elsewhere in this patch. Flagged by checkpatch.pl --codespell > + * @gzvm: Pointer to gzvm. > + * @p: Pointer to gzvm_ioevent. > + * > + * Return: > + * * true - collison found > + * * false - no collison > + */ ...