linux-kernel - Re: [PATCH v5 07/15] ufs: core: support wrapped keys in ufs core

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Date: Mon, 17 Jun 2024 11:01:12 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Gaurav Kashyap <quic_gaurkash@...cinc.com>
Cc: linux-arm-msm@...r.kernel.org, linux-scsi@...r.kernel.org, 
	andersson@...nel.org, ebiggers@...gle.com, neil.armstrong@...aro.org, 
	srinivas.kandagatla@...aro.org, krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org, 
	robh+dt@...nel.org, linux-kernel@...r.kernel.org, linux-mmc@...r.kernel.org, 
	kernel@...cinc.com, linux-crypto@...r.kernel.org, devicetree@...r.kernel.org, 
	quic_omprsing@...cinc.com, quic_nguyenb@...cinc.com, bartosz.golaszewski@...aro.org, 
	konrad.dybcio@...aro.org, ulf.hansson@...aro.org, jejb@...ux.ibm.com, 
	martin.petersen@...cle.com, mani@...nel.org, davem@...emloft.net, 
	herbert@...dor.apana.org.au, psodagud@...cinc.com, quic_apurupa@...cinc.com, 
	sonalg@...cinc.com
Subject: Re: [PATCH v5 07/15] ufs: core: support wrapped keys in ufs core

On Sun, Jun 16, 2024 at 05:51:02PM GMT, Gaurav Kashyap wrote:
> Since wrapped keys are not part of the UFS specifications,
> it needs to be treated as a supported quirk of the UFS
> controller. This way, based on the quirk set during a host
> probe, UFS crypto can choose to register either standard or
> wrapped keys with block crypto profile.

No. It is the user who must be able to select whether to use HW-wrapped
keys or not. The hardware / driver can only specify whether HW-wrapped
keys are supported or not.

> 
> Tested-by: Neil Armstrong <neil.armstrong@...aro.org>
> Signed-off-by: Gaurav Kashyap <quic_gaurkash@...cinc.com>
> ---
>  drivers/ufs/core/ufshcd-crypto.c | 24 ++++++++++++++++--------
>  include/ufs/ufshcd.h             |  6 ++++++
>  2 files changed, 22 insertions(+), 8 deletions(-)
> 


-- 
With best wishes
Dmitry