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 C911CFF8860 for ; Mon, 27 Apr 2026 06:16:41 +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: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=MhTgo6WW+Hf+fMpICkTG7fyYcG3KOpomLOlvv70GtyU=; b=am7GMWRG1JABIjrLwX8k/mMguA /Ef0OT5RnDas3rnpni5aZOB8nil28T4F/gv2YiPG17QXt+jxJov1ITecpCilP5W1gb3PkMIHvgmmd X9rVTkkOZmR8R5TzUJVzXOUM7lJO8kQDrR+sApe0xQ6CyVa5daZwswSBMOM8ofP4DxkdLSBy8Yvfh clI6K7qFg+nCHKvBKUv13kUpKWgPi2k4+aF0EF2D7B40Ke1H9O1lcYrAwMRJl8tu2Lc131cpHgr8Q vdtkaqArRvfyZc1efV+rw/CzaBMKrPvhbHF0DVw0WE4Zm2cxl4j2zIH0zpNnAxeIolj+AZeKUSakw nuYwGMxA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1wHFGk-0000000GFDN-3SWo; Mon, 27 Apr 2026 06:16:34 +0000 Received: from tor.source.kernel.org ([2600:3c04:e001:324:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1wHFGj-0000000GFCd-0qpo for linux-arm-kernel@lists.infradead.org; Mon, 27 Apr 2026 06:16:33 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id A451A6014C; Mon, 27 Apr 2026 06:16:32 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D9D5BC19425; Mon, 27 Apr 2026 06:16:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1777270592; bh=hTCKt18aJAo+65yWwcIoa64hixUbPX6xHIb2YBgs2KY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LvT05MDoRKVUCbCVVrSqbMDI4zJAoGYv2pfKHXuUloJmPCcbFViXFNrjLzr6fgxsi XtHEG9aLvbyj5qbwgyU1P6WVTK0275pA5bsBSV3FFypOoTtwuAboKdWE67XuAwTTbH vQIhMz2vOeP6ZjF1imAI66U/txiHICSxBpX9eSVdAn4jr6O0XmiQT9qZMZs16N/0LX c6AfNEEQ1ptLmCDDdialjuHT12m2feMMY+sjEPuA+iUXeMuz80uD9IzZpy7ddz06WP biSEam5k7zmO95rqLFGn1gdscXwtd6spwXHmuGdWPhflEWVuuv+J2wBGw5o6sE+WQg zrfv8Wggt37bw== From: "Aneesh Kumar K.V (Arm)" To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: "Aneesh Kumar K.V (Arm)" , Catalin Marinas , Greg KH , Jeremy Linton , Jonathan Cameron , Lorenzo Pieralisi , Mark Rutland , Sudeep Holla , Will Deacon , Jonathan Cameron Subject: [PATCH v4 2/2] coco: guest: arm64: Drop dummy RSI platform device stub Date: Mon, 27 Apr 2026 11:46:15 +0530 Message-ID: <20260427061615.905018-3-aneesh.kumar@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260427061615.905018-1-aneesh.kumar@kernel.org> References: <20260427061615.905018-1-aneesh.kumar@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 The SMCCC firmware driver now creates the `arm-smccc` platform device and also creates the CCA auxiliary devices once the RSI ABI is discovered. This makes the arch-specific arm64_create_dummy_rsi_dev() helper redundant. Remove the arm-cca-dev platform device registration and let the SMCCC probe manage the RSI device. systemd match on platform:arm-cca-dev for confidential vm detection [1]. Losing the platform device registration can break that. Keeping this removal in its own change makes it easy to revert if that regression blocks the rollout. [1] https://lore.kernel.org/all/4a7d84b2-2ec4-4773-a2d5-7b63d5c683cf@arm.com Reviewed-by: Jonathan Cameron Signed-off-by: Aneesh Kumar K.V (Arm) --- arch/arm64/kernel/rsi.c | 15 --------------- 1 file changed, 15 deletions(-) diff --git a/arch/arm64/kernel/rsi.c b/arch/arm64/kernel/rsi.c index 8380e5ba88d2..9ba29e832685 100644 --- a/arch/arm64/kernel/rsi.c +++ b/arch/arm64/kernel/rsi.c @@ -159,18 +159,3 @@ void __init arm64_rsi_init(void) static_branch_enable(&rsi_present); } - -static struct platform_device rsi_dev = { - .name = "arm-cca-dev", - .id = PLATFORM_DEVID_NONE -}; - -static int __init arm64_create_dummy_rsi_dev(void) -{ - if (is_realm_world() && - platform_device_register(&rsi_dev)) - pr_err("failed to register rsi platform device\n"); - return 0; -} - -arch_initcall(arm64_create_dummy_rsi_dev) -- 2.43.0