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 B5C02EFCD77 for ; Mon, 9 Mar 2026 10:05:44 +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=ZUCWKhTa7EOpHE/mW6VCeQHSBgGwi3T4hXafRQ71YmI=; b=N9ufpHMLeqbw3R47g/d0cT2RUf Syd7oIx/uwQ9RYPkuLmPeYTeNWymBVAjbSwOLZeCxiAIrBKswxR2N6RHm4NhrDcwXwJO/IkDRSo8z Lqd8nHdhUxyNiOuezmbWjXMySOMy7boJ8R2xTIuyzT84ikZK5G1x1T8UPHuSWLgYS3kwz1Xqf2aqW s5AAK7qxghHqcX01lW2mjaL5Yp+5J3m/iQkkmYfXz34cNIVpzJhy8Wus3bcnmKPaBdestaLxjPWQj yNvU8IgfdkhhXVO9hccx91Nb5j0kG5RMQ1ZOXJXgHR4h9/QGg7wETp46Xrc9dsWAfOHpU1OcLQh7P 4SJv9hwA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vzXUa-000000072wL-40R8; Mon, 09 Mar 2026 10:05:40 +0000 Received: from sea.source.kernel.org ([2600:3c0a:e001:78e:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vzXUZ-000000072vZ-0As8 for linux-arm-kernel@lists.infradead.org; Mon, 09 Mar 2026 10:05:40 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 8130340A06; Mon, 9 Mar 2026 10:05:38 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id F2D72C4CEF7; Mon, 9 Mar 2026 10:05:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1773050738; bh=C/zPRRsYTBI8Qp8SK8L/HdVnrLbMCEtXVMtLu+bv/Ow=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=C5TTbvDhdKkkIIebpGB2cvg1VfJRLrHhJ8LT2UlCzDeI7R7L2RV2PgKstpFjDfRA4 ofcnLr55pDiyURX/MM1tjBl13RwxYN+t5DWAieNpxU0mmEdSrHxcRcZMAm1ygh9VYp UoJhvdEPMcephwyaKi/2fCzFzLioDV8Ayifltu5b608OjCjvbbPwJg3PXICHkhcTuK zxpktAzjm2ve3ouzUenlicK+7U0jW4yO+O/CmzcNv48S+yZzJqxIi1McgBCI5Vpnr4 g7iWwYZ/gz9b+lYpyRxyf+cQ4gKZpbvz8iddP5uAOAvqLwqQimlaQHUi/0c8LRnpqS C/pIrSnnSHZSg== 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 , Will Deacon , Lorenzo Pieralisi , Jeremy Linton , Greg KH , Mark Rutland , Sudeep Holla , Jonathan Cameron Subject: [PATCH v3 2/2] coco: guest: arm64: Drop dummy RSI platform device stub Date: Mon, 9 Mar 2026 15:35:07 +0530 Message-ID: <20260309100507.2303361-2-aneesh.kumar@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260309100507.2303361-1-aneesh.kumar@kernel.org> References: <20260309100507.2303361-1-aneesh.kumar@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260309_030539_096718_5D88595C X-CRM114-Status: GOOD ( 10.87 ) 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 Cc: Catalin Marinas Cc: Will Deacon Cc: Lorenzo Pieralisi Cc: Jeremy Linton Cc: Greg KH Cc: Mark Rutland Cc: Lorenzo Pieralisi Cc: Sudeep Holla 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 5d711942e543..1b716d18b80e 100644 --- a/arch/arm64/kernel/rsi.c +++ b/arch/arm64/kernel/rsi.c @@ -158,18 +158,3 @@ 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