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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B1187C4167D for ; Wed, 13 Dec 2023 09:05:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232536AbjLMJFZ (ORCPT ); Wed, 13 Dec 2023 04:05:25 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36124 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231137AbjLMJFY (ORCPT ); Wed, 13 Dec 2023 04:05:24 -0500 Received: from mail-lj1-x22d.google.com (mail-lj1-x22d.google.com [IPv6:2a00:1450:4864:20::22d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 07033F3; Wed, 13 Dec 2023 01:05:30 -0800 (PST) Received: by mail-lj1-x22d.google.com with SMTP id 38308e7fff4ca-2ca0715f0faso92367461fa.0; Wed, 13 Dec 2023 01:05:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1702458329; x=1703063129; darn=vger.kernel.org; h=mime-version:references:in-reply-to:message-id:subject:cc:to:from :date:from:to:cc:subject:date:message-id:reply-to; bh=uPVstSGHW2mJYYKDhOcbHVvFc6FCpsaEprPwYoO2QrU=; b=MGi+uK8fNUmM0nhxy/iOse+UgOChkXpP3nyVErQc/+LI5+qhOuntIIHrgrEzY7EjIh 7RfkbwccMukM43/8rRjOIlmo8EPwzazbrK+ylS3Cwkjl8cva0qhM6JUgdUOtReByzEe1 cAhIPHLJ9MUpFThviTFoAzJJ8MXVJ0uGkQQRNgAhItdfJJZTkikyhX+kJXJPeHol95SI /15h/nP244D+ak5DxfpZyJpTxrw+iwOUMMqY4m0HK4eqwQ0xLbwP7R2ztcxoujGiSPZh H25CHVogBLxLF7Ph76klLrOViQuC7J4bQfYd8szgeN7mfGELRR7i3FZGqm2fJdJ43Tvc BuBQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702458329; x=1703063129; h=mime-version:references:in-reply-to:message-id:subject:cc:to:from :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=uPVstSGHW2mJYYKDhOcbHVvFc6FCpsaEprPwYoO2QrU=; b=jNnCZTpJ5NStUFu+h/rdsydrP3b72bNeeWvnoL/HhTVIikNpe0m8VftCZUYXpaBlXf x3Y2oBGl6u8sdcoEuT38x/2I8dFAjBGuLepqzwABtDDpxoq+CnhoPJAI8r6EUnSSZ4tZ A8i7Xu0Fo0W9+2LyGELCobRQSA8xDRKUxayCAEWiNuFjF+fuIol9hEOrQegCzfarcaWA SJkwCDVTfXflg8PKm1Ps2u+5tBYndnu5dBUMDKmgLCKs+tHW9/g2gwcCBHdj3oJJVAPM YSb8hjPZZ5I6hjyLtExGQEhCrRexRRCG2xHz5CGEw4xLQaXCmCFdjwysMCOZwou10HwE bpkA== X-Gm-Message-State: AOJu0YxrDsfm8vD+6M6ALUnQF2R7OmymhSatT+q8Lfqd1m9GmJEdsJwz IywiUnS0iIA0jAeWLjjnhR4= X-Google-Smtp-Source: AGHT+IGWpeNIT+ctXpc3/nJZFateSOhCrGMOM+zwxTvVL6e43wnzc3r3OJ2tC/PYR81yyP2zfmy63A== X-Received: by 2002:a05:6512:38cf:b0:50c:5aa:83b4 with SMTP id p15-20020a05651238cf00b0050c05aa83b4mr2890212lft.114.1702458328719; Wed, 13 Dec 2023 01:05:28 -0800 (PST) Received: from eldfell ([194.136.85.206]) by smtp.gmail.com with ESMTPSA id y18-20020a199152000000b0050be6326f2asm1597596lfj.64.2023.12.13.01.05.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Dec 2023 01:05:28 -0800 (PST) Date: Wed, 13 Dec 2023 11:05:17 +0200 From: Pekka Paalanen To: Simon Ser Cc: Yong Wu , Rob Herring , Sumit Semwal , christian.koenig@amd.com, Matthias Brugger , dri-devel@lists.freedesktop.org, John Stultz , Krzysztof Kozlowski , Jeffrey Kardatzke , Benjamin Gaignard , Vijayanand Jitta , Nicolas Dufresne , jianjiao.zeng@mediatek.com, linux-media@vger.kernel.org, devicetree@vger.kernel.org, Conor Dooley , ckoenig.leichtzumerken@gmail.com, linaro-mm-sig@lists.linaro.org, linux-mediatek@lists.infradead.org, Joakim Bech , tjmercier@google.com, linux-arm-kernel@lists.infradead.org, AngeloGioacchino Del Regno , kuohong.wang@mediatek.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH v3 0/7] dma-buf: heaps: Add secure heap Message-ID: <20231213110517.6ce36aca@eldfell> In-Reply-To: References: <20231212024607.3681-1-yong.wu@mediatek.com> X-Mailer: Claws Mail 4.1.1 (GTK 3.24.38; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/DaWmOigQ7D9ggi2.WnkRpp3"; protocol="application/pgp-signature"; micalg=pgp-sha256 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --Sig_/DaWmOigQ7D9ggi2.WnkRpp3 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Tue, 12 Dec 2023 16:36:35 +0000 Simon Ser wrote: > Is there a chance to pick a better name than "secure" here? >=20 > "Secure" is super overloaded, it's not clear at all what it means from > just the name. Something like "restricted" would be an improvement. >=20 My thoughts exactly. Every time I see "secure" used for something that either gives you garbage, refuses to work, or crashes your whole machine *intentionally* when you try to do normal usual things to it in userspace (like use it for GL texturing, or try to use KMS writeback), I get an unscratchable itch. There is nothing "secure" from security perspective there for end users and developers. It's just inaccessible buffers. I've been biting my lip until now, thinking it's too late. 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