linux-kernel - Re: [PATCH V2 1/2] dt-bindings: mailbox: Document qcom,tmel-qmp

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <2ae1d7f9-63da-47fd-8c39-4a87e2ce97c8@quicinc.com>
Date: Mon, 6 Jan 2025 11:06:21 +0530
From: Sricharan Ramabadhran <quic_srichara@...cinc.com>
To: Krzysztof Kozlowski <krzk@...nel.org>
CC: <jassisinghbrar@...il.com>, <robh@...nel.org>, <krzk+dt@...nel.org>,
        <conor+dt@...nel.org>, <linux-arm-msm@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <andersson@...nel.org>, <konradybcio@...nel.org>,
        <manivannan.sadhasivam@...aro.org>, <dmitry.baryshkov@...aro.org>
Subject: Re: [PATCH V2 1/2] dt-bindings: mailbox: Document qcom,tmel-qmp



On 1/4/2025 12:13 AM, Krzysztof Kozlowski wrote:
> On 03/01/2025 19:34, Sricharan Ramabadhran wrote:
>>>> +description:
>>>> +  TMEL SS provides different kinds of services like secureboot, remote image
>>>> +  authentication, key management, crypto, OEM provisioning etc. This patch adds
>>>> +  support for remote image authentication. Support for rest of the services can
>>>> +  be added.
>>>> +
>>>> +  The QMP mailbox is the primary means of communication between TMEL SS and
>>>> +  other subsystem on the SoC. A dedicated pair of inbound and outbound mailboxes
>>>> +  is implemented for each subsystem/external execution environment which needs to
>>>> +  communicate with TMEL for security services. The inbound mailboxes are used to
>>>> +  send IPC requests to TMEL, which are then processed by TMEL firmware and
>>>> +  accordingly the responses are sent to the requestor via outbound mailboxes.
>>>> +
>>>> +properties:
>>>> +  compatible:
>>>> +    items:
>>>> +      - enum:
>>>> +          - qcom,ipq5424-tmel-qmp
>>>
>>>
>>> Why qmp? Can TMEL on IPQ5424 be anything else? Can TMEL be SMEM or using
>>> any other remoteproc?
>>>
>> TMEL on IPQ5424 uses only QMP protocol for communication.
> 
> 
> Then keep just "tmel". It completely defines this device.

ok.

Regards,
  Sricharan