linux-kernel - Re: [PATCH 2/2] ftpm: firmware TPM running in TEE

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Message-ID: <20190403181827.GB17006@linux.intel.com>
Date:   Wed, 3 Apr 2019 21:18:27 +0300
From:   Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
To:     Sasha Levin <sashal@...nel.org>
Cc:     robh+dt@...nel.org, mark.rutland@....com, peterhuewe@....de,
        jgg@...pe.ca, linux-kernel@...rosoft.com, bryankel@...rosoft.com,
        thiruan@...rosoft.com, suredd@...rosoft.com, arnd@...db.de,
        gregkh@...uxfoundation.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-integrity@...r.kernel.org
Subject: Re: [PATCH 2/2] ftpm: firmware TPM running in TEE

On Tue, Apr 02, 2019 at 03:33:16PM -0400, Sasha Levin wrote:
> This patch adds support for a software-only implementation of a TPM
> running in TEE.
> 
> There is extensive documentation of the design here:
> https://www.microsoft.com/en-us/research/publication/ftpm-software-implementation-tpm-chip/ .
> 
> As well as reference code for the firmware available here:
> https://github.com/Microsoft/ms-tpm-20-ref/tree/master/Samples/ARM32-FirmwareTPM
> 
> Signed-off-by: Thirupathaiah Annapureddy <thiruan@...rosoft.com>
> Signed-off-by: Sasha Levin <sashal@...nel.org>

What is the context anyway? I mean tpm_crb already supports fTPM running
in TZ.

/Jarkko