From nobody Fri Sep 20 10:54:52 2024 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C37F4C4167B for ; Sat, 11 Nov 2023 11:17:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230508AbjKKLRw (ORCPT ); Sat, 11 Nov 2023 06:17:52 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58296 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230145AbjKKLRu (ORCPT ); Sat, 11 Nov 2023 06:17:50 -0500 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1D385469A; Sat, 11 Nov 2023 03:17:45 -0800 (PST) X-UUID: ed1ba80a808311eea33bb35ae8d461a2-20231111 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=h0jwM9zWwa5D3l5JQgrd0AZPHaBGPLCLDPqIefNNn9w=; b=M3Pyx07EbPyVhoaPt7nZ/FX16J/WlhF9ReDp2DytfLanRl1hkcg6DJdyygoeHF2cbwXDCfRX82H8qu2ioElOiHgeLvmHJGj2MW1aJeNBT/qKTxMah3Qdlug+Tmq7Xql32hK/AcLwgauDx1jtXqluSjT8HK/5nO3HQAQUqaFm+do=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.33,REQID:eeace6ff-da5e-403e-a8d4-6413bef47f5d,IP:0,U RL:25,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION :release,TS:25 X-CID-META: VersionHash:364b77b,CLOUDID:7ff2f05f-c89d-4129-91cb-8ebfae4653fc,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:1,EDM:-3,IP:nil,U RL:11|1,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES:1,SPR: NO,DKR:0,DKP:0,BRR:0,BRE:0 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR,TF_CID_SPAM_ULN X-UUID: ed1ba80a808311eea33bb35ae8d461a2-20231111 Received: from mtkmbs13n2.mediatek.inc [(172.21.101.108)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 769761032; Sat, 11 Nov 2023 19:17:40 +0800 Received: from mtkmbs11n1.mediatek.inc (172.21.101.185) by MTKMBS14N1.mediatek.inc (172.21.101.75) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Sat, 11 Nov 2023 19:17:37 +0800 Received: from mhfsdcap04.gcn.mediatek.inc (10.17.3.154) by mtkmbs11n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Sat, 11 Nov 2023 19:17:36 +0800 From: Yong Wu To: Rob Herring , Sumit Semwal , , Matthias Brugger CC: Krzysztof Kozlowski , Conor Dooley , Benjamin Gaignard , Brian Starkey , John Stultz , , AngeloGioacchino Del Regno , Yong Wu , , , , , , , , , , Vijayanand Jitta , Joakim Bech , Jeffrey Kardatzke , Nicolas Dufresne , Subject: [PATCH v2 6/8] dt-bindings: reserved-memory: Add secure CMA reserved memory range Date: Sat, 11 Nov 2023 19:15:57 +0800 Message-ID: <20231111111559.8218-7-yong.wu@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231111111559.8218-1-yong.wu@mediatek.com> References: <20231111111559.8218-1-yong.wu@mediatek.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-Product-Ver: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-AS-Result: No-10--3.888000-8.000000 X-TMASE-MatchedRID: y64C6oV0e4cXSulpnju2H8LPXKYZysJRecvjbu/xDjpMOjKUxCZwrxVq ALLbOC6VBRj5e39v/eGsMR/ATxTHjSWvhQBtQUwTyeVujmXuYYX+yhO1yCoLfDP3WYNhkszluHQ 5SWRKq/0I49goOhQ2+ItfNuTBizUEQF24kZp9Ww+eAiCmPx4NwGmRqNBHmBvejvEeq6gAkYbfaY 87m2dqx9934/rDAK3zCaXr04pRMJA1yGL4+nAmxJD/HwNezREOO8fzLmP53G+oHvd3pfFwUF+/A KUOIHlXyFVWUnr9FwsfFdcY8tD7GQ6w2+Ixe72XP1JC+7l10KltUY6LqdlQnFr3vnlc+D6eVZOb rZkNVZRlRd/nfa56MV7IEEqsePYG X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--3.888000-8.000000 X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-SNTS-SMTP: C04951FF99BF27E30025E22F729504596E746D2DEA39644EF37717C76995E8582000:8 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Add a binding for describing the secure CMA reserved memory range. The memory range also will be defined in the TEE firmware. It means the TEE will be configured with the same address/size that is being set in this DT node. Signed-off-by: Yong Wu --- .../reserved-memory/secure_cma_region.yaml | 44 +++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 Documentation/devicetree/bindings/reserved-memory/secur= e_cma_region.yaml diff --git a/Documentation/devicetree/bindings/reserved-memory/secure_cma_r= egion.yaml b/Documentation/devicetree/bindings/reserved-memory/secure_cma_r= egion.yaml new file mode 100644 index 000000000000..8ab559595fbe --- /dev/null +++ b/Documentation/devicetree/bindings/reserved-memory/secure_cma_region.y= aml @@ -0,0 +1,44 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/reserved-memory/secure_cma_region.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Secure Reserved CMA Region + +description: + This binding describes a CMA region that can dynamically transition +between secure and non-secure states that a TEE can allocate memory +from. + +maintainers: + - Yong Wu + +allOf: + - $ref: reserved-memory.yaml + +properties: + compatible: + const: secure_cma_region + +required: + - compatible + - reg + - reusable + +unevaluatedProperties: false + +examples: + - | + + reserved-memory { + #address-cells =3D <1>; + #size-cells =3D <1>; + ranges; + + reserved-memory@80000000 { + compatible =3D "secure_cma_region"; + reusable; + reg =3D <0x80000000 0x18000000>; + }; + }; --=20 2.25.1