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 7EE7CCA1009 for ; Fri, 30 Aug 2024 16:18:14 +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:Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc: To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=HjNBU+fLZ/fHskCKDLZabg3IeoptYU+OLH/XiNhlKBc=; b=iGxEPhhp5CoOp/jPmCd04hbEto jy/StMkVTzEbyh1oZFcdPxzqDX9OUd2UaY1yMhXeM2NYDJWTHCAtP46EmqESS9zRteQfcgAfFTZCA lYzenui6WCPIH5lWAKM3932CiRPqWAP7SfUDwNDfCWPpX+Y5IOzmKYXrud97/kCZp7WaCNdGfr6G2 fc4T6O23xwU9QZuFgzP0V+I+pBmOGLL5fJDJ2YP3hhIyrWrvCPa58DE5tRgRndEwMZr6uF1K8sr9p /brWQTRs7qBmJ+bV1JtY8gbZDI5bLiGvGgxS0b2Rqvxua7i/vC2+qCZubCpc7cCruben02awP6qk7 DKlTHWGw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sk4K3-00000006z54-1QqE; Fri, 30 Aug 2024 16:18:03 +0000 Received: from nyc.source.kernel.org ([147.75.193.91]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sk4Et-00000006y1j-0eCm for linux-arm-kernel@lists.infradead.org; Fri, 30 Aug 2024 16:12:44 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by nyc.source.kernel.org (Postfix) with ESMTP id F3162A44B86; Fri, 30 Aug 2024 16:12:34 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 48698C4CEC2; Fri, 30 Aug 2024 16:12:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1725034361; bh=4vUSzrtzbqxF4YHTsqrl1m40oJesI+VvMoFuE5sdrvI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=A7Nb0SDWG2mx1Wusjg0AiHgDIGEbKYmmcaS+2HKO3Km94KVHn9xxcaOLTv3YsK3hN owgtQbn3jpJIbOpqNywqUkOrKa/nJ5L/kZHx/PPbQqnHuN3ZEK+r3GfLm92utYu2vR R5DZFs2zKf4ja0MOeKdQ6cJz/IAPr52fQewuaDNA6DcdXPf9z/QmdVXVlv8v9xCcq2 d0V0Xhf1S1Cx2zUWy/xoAvo9psRcRljcIPOMNmZJjSczA7qPU9PsI7KLP4OoabzCtN JjqbGiLbEBfa7q+q2pLJGJbhb69wZDdMHJmcaGFs/5bceFrhG58/TTZnGt0pSvCmgu y9nFHAje7j16w== From: Will Deacon To: linux-kernel@vger.kernel.org, iommu@lists.linux.dev, linux-arm-kernel@lists.infradead.org, robin.murphy@arm.com, joro@8bytes.org, Mostafa Saleh Cc: catalin.marinas@arm.com, kernel-team@android.com, Will Deacon , jean-philippe@linaro.org, jgg@ziepe.ca, nicolinc@nvidia.com, mshavit@google.com Subject: Re: [PATCH v4 0/2] Fix handling of S2 stalls Date: Fri, 30 Aug 2024 17:12:14 +0100 Message-Id: <172503018121.1633151.4148376979460234025.b4-ty@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20240830110349.797399-1-smostafa@google.com> References: <20240830110349.797399-1-smostafa@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240830_091243_303578_D37AB125 X-CRM114-Status: GOOD ( 11.03 ) 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, 30 Aug 2024 11:03:46 +0000, Mostafa Saleh wrote: > While debugging something else, I spent hours looking at hexdumps of > STEs, CDs and commands while comparing them against the arch specs, > where I noticed a minor violation in the driver regarding handling of > S2S bit in the STE. > > This has been there for ages, so it’s highly unlikely that any HW (if > it exists with such features) running Linux is affected. > > [...] Applied to will (for-joerg/arm-smmu/updates), thanks! [1/2] iommu/arm-smmu-v3: Match Stall behaviour for S2 https://git.kernel.org/will/c/ce7cb08e22e0 [2/2] iommu/arm-smmu-v3-test: Test masters with stall enabled https://git.kernel.org/will/c/070e326f327a Cheers, -- Will https://fixes.arm64.dev https://next.arm64.dev https://will.arm64.dev