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Mon, 02 Dec 2024 04:03:07 -0800 (PST) Received: from [127.0.1.1] ([193.57.185.11]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-434b0d9bed7sm152396095e9.8.2024.12.02.04.03.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Dec 2024 04:03:07 -0800 (PST) From: Bartosz Golaszewski Date: Mon, 02 Dec 2024 13:02:31 +0100 Subject: [PATCH RESEND v7 15/17] ufs: host: add support for wrapped keys in QCom UFS Precedence: bulk X-Mailing-List: linux-fscrypt@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241202-wrapped-keys-v7-15-67c3ca3f3282@linaro.org> References: <20241202-wrapped-keys-v7-0-67c3ca3f3282@linaro.org> In-Reply-To: <20241202-wrapped-keys-v7-0-67c3ca3f3282@linaro.org> To: Jens Axboe , Jonathan Corbet , Alasdair Kergon , Mike Snitzer , Mikulas Patocka , Adrian Hunter , Asutosh Das , Ritesh Harjani , Ulf Hansson , Alim Akhtar , Avri Altman , Bart Van Assche , "James E.J. Bottomley" , Gaurav Kashyap , Neil Armstrong , Dmitry Baryshkov , "Martin K. Petersen" , Eric Biggers , "Theodore Y. Ts'o" , Jaegeuk Kim , Alexander Viro , Christian Brauner , Jan Kara , Bjorn Andersson , Konrad Dybcio , Manivannan Sadhasivam Cc: linux-block@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, dm-devel@lists.linux.dev, linux-mmc@vger.kernel.org, linux-scsi@vger.kernel.org, linux-fscrypt@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-arm-msm@vger.kernel.org, Bartosz Golaszewski , Om Prakash Singh X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; a=openpgp-sha256; l=1568; i=bartosz.golaszewski@linaro.org; h=from:subject:message-id; bh=gi1rUYia1K9GFiqOdv+A9A7WV4lUw8MkRuPETlXFN6A=; b=owEBbQKS/ZANAwAKARGnLqAUcddyAcsmYgBnTaHWPhF96W8ta0sCsu5xIcmZfLZdnO+UJtTSV wzlGPTq5gmJAjMEAAEKAB0WIQQWnetsC8PEYBPSx58Rpy6gFHHXcgUCZ02h1gAKCRARpy6gFHHX co/FEACxG2K3W52mA5oFbkrWPJHbaBrdjs6ZZ6SOuehliuBdNm+Wz2Oy8crOCOYPqWebYcc26eb yPbA8sjRYDkffqLtV/s9YOqk6gpEXdWN9ajsb40qdBMhQrYutHku2TP5/VKW9jaqfNfdcjZ8AaO 8nwx/ItU7yfm4ZayW+ipCJVMqBrRnq5uYZK2GVWbYZ+ze16foZqM+e2rvspmK4PCdg5v9daW11n sDy39z3Wop5EmNv8pHEcZl75vgIdi491tNZez659SdK4PL9HTxtnUYcUQp6P+5/TvBQjxb1KnZm uoykfHHiVTy/NMiSOXhcdScRPj8oX5w5nKsvm8Pa1mtyCkOaAgq44uKYg7tLLGLY2nZO3eXftca cYRJ03ax17LjdQK3JKgLXm0O6wZG1OyFsTfNYyLMm/sKTXXNTymFevZcLU5npYV8hole5/g6Rmu qkriHdAQWNi0ijA3MuvyGJWherx1iRu9nD4MBoyy9HUiUe5yc99cTb6f3r1v5lyZMvm2u5Hcv5o E4lng/VeJ3F/jFbopzAX0kcv39GpsNs9bKVW3t6lQG/aBBj8Hz9XnSftigxj8EVXt+Lp64M61TA Uvp78T+A5eqi5vt1WMGgtCdKqRiamJ7EdRat88mL8ZGVEHOkgsDKOobNebSsLDJP2Pp81sSm242 HSMB1FMpcMha/CQ== X-Developer-Key: i=bartosz.golaszewski@linaro.org; a=openpgp; fpr=169DEB6C0BC3C46013D2C79F11A72EA01471D772 From: Gaurav Kashyap Use the wrapped keys capability when HWKM is supported. Whether to use HWKM or not would be decided during an ICE probe, and based on this information, UFS can decide to use wrapped or raw keys. Also, propagate the appropriate key size to the ICE driver when wrapped keys are used. Tested-by: Neil Armstrong Reviewed-by: Om Prakash Singh Signed-off-by: Gaurav Kashyap Signed-off-by: Bartosz Golaszewski --- drivers/ufs/host/ufs-qcom.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c index 44fb4a4c0f2d7..fd774531cbbf3 100644 --- a/drivers/ufs/host/ufs-qcom.c +++ b/drivers/ufs/host/ufs-qcom.c @@ -129,6 +129,8 @@ static int ufs_qcom_ice_init(struct ufs_qcom_host *host) host->ice = ice; hba->caps |= UFSHCD_CAP_CRYPTO; + if (qcom_ice_hwkm_supported(host->ice)) + hba->caps |= UFSHCD_CAP_WRAPPED_CRYPTO_KEYS; return 0; } @@ -166,7 +168,11 @@ static int ufs_qcom_ice_program_key(struct ufs_hba *hba, cap.key_size != UFS_CRYPTO_KEY_SIZE_256) return -EOPNOTSUPP; - ice_key_size = QCOM_ICE_CRYPTO_KEY_SIZE_256; + if (bkey->crypto_cfg.key_type == BLK_CRYPTO_KEY_TYPE_HW_WRAPPED) + ice_key_size = QCOM_ICE_CRYPTO_KEY_SIZE_WRAPPED; + else + ice_key_size = QCOM_ICE_CRYPTO_KEY_SIZE_256; + if (config_enable) return qcom_ice_program_key(host->ice, QCOM_ICE_CRYPTO_ALG_AES_XTS,