From: Pavel Machek <pavel@ucw.cz>
To: Yong Wu <yong.wu@mediatek.com>
Cc: Rob Herring <robh+dt@kernel.org>,
Sumit Semwal <sumit.semwal@linaro.org>,
christian.koenig@amd.com,
Matthias Brugger <matthias.bgg@gmail.com>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Conor Dooley <conor+dt@kernel.org>,
Benjamin Gaignard <benjamin.gaignard@collabora.com>,
Brian Starkey <Brian.Starkey@arm.com>,
John Stultz <jstultz@google.com>,
tjmercier@google.com,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org,
linaro-mm-sig@lists.linaro.org,
linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org, jianjiao.zeng@mediatek.com,
kuohong.wang@mediatek.com,
Vijayanand Jitta <quic_vjitta@quicinc.com>,
Joakim Bech <joakim.bech@linaro.org>,
Jeffrey Kardatzke <jkardatzke@google.com>,
Nicolas Dufresne <nicolas@ndufresne.ca>,
ckoenig.leichtzumerken@gmail.com
Subject: Re: [PATCH v2 0/8] dma-buf: heaps: Add secure heap
Date: Mon, 13 Nov 2023 12:38:28 +0100 [thread overview]
Message-ID: <ZU/V2XX71GbaV6Q8@duo.ucw.cz> (raw)
In-Reply-To: <20231111111559.8218-1-yong.wu@mediatek.com>
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Hi!
> This patchset adds three secure heaps:
> 1) secure_mtk_cm: secure chunk memory for MediaTek SVP (Secure Video Path).
> The buffer is reserved for the secure world after bootup and it is used
> for vcodec's ES/working buffer;
> 2) secure_mtk_cma: secure CMA memory for MediaTek SVP. This buffer is
> dynamically reserved for the secure world and will be got when we start
> playing secure videos, Once the security video playing is complete, the
> CMA will be released. This heap is used for the vcodec's frame buffer.
> 3) secure_cma: Use the kerne CMA ops as the allocation ops.
> currently it is a draft version for Vijay and Jaskaran.
Is there high-level description of what the security goals here are,
somewhere?
BR,
Pavel
--
People of Russia, stop Putin before his war on Ukraine escalates.
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next prev parent reply other threads:[~2023-11-13 11:38 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-11 11:15 [PATCH v2 0/8] dma-buf: heaps: Add secure heap Yong Wu
2023-11-11 11:15 ` [PATCH v2 1/8] dma-buf: heaps: Initialize a " Yong Wu
2023-11-15 23:18 ` Jeffrey Kardatzke
2023-11-11 11:15 ` [PATCH v2 2/8] dma-buf: heaps: secure_heap: Add private heap ops Yong Wu
2023-11-15 23:21 ` Jeffrey Kardatzke
2023-11-11 11:15 ` [PATCH v2 3/8] dma-buf: heaps: secure_heap: Initialize tee session Yong Wu
2023-11-11 16:55 ` kernel test robot
2023-11-11 17:44 ` kernel test robot
2023-11-15 23:23 ` Jeffrey Kardatzke
2023-11-11 11:15 ` [PATCH v2 4/8] dma-buf: heaps: secure_heap: Add tee memory service call Yong Wu
2023-11-11 23:28 ` kernel test robot
2023-11-15 23:26 ` Jeffrey Kardatzke
2023-11-11 11:15 ` [PATCH v2 5/8] dma-buf: heaps: secure_heap: Add dma_ops Yong Wu
2023-11-11 11:15 ` [PATCH v2 6/8] dt-bindings: reserved-memory: Add secure CMA reserved memory range Yong Wu
2023-11-11 12:48 ` Krzysztof Kozlowski
2023-11-13 6:37 ` Yong Wu (吴勇)
2023-11-14 13:18 ` Robin Murphy
2023-11-15 23:35 ` Jeffrey Kardatzke
2023-11-13 20:40 ` Rob Herring
2023-11-11 11:15 ` [PATCH v2 7/8] dma_buf: heaps: secure_heap: Add a new MediaTek CMA heap Yong Wu
2023-11-15 23:44 ` Jeffrey Kardatzke
2023-11-11 11:15 ` [PATCH v2 8/8] dma-buf: heaps: secure_heap: Add normal " Yong Wu
2023-11-15 23:45 ` Jeffrey Kardatzke
2023-11-13 11:38 ` Pavel Machek [this message]
2023-11-15 22:02 ` [PATCH v2 0/8] dma-buf: heaps: Add secure heap Jeffrey Kardatzke
2023-11-22 16:48 ` Pratyush Brahma
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