From patchwork Mon Jun 17 00:51:06 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Gaurav Kashyap (QUIC)" X-Patchwork-Id: 13699826 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D66AE7D07D; Mon, 17 Jun 2024 00:59:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.168.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718585964; cv=none; b=qlu1X1r5uM3uTo9ljC63K/pZq2GfBmtdaFI3fHkYxpXDFNyuOSPM5DeQHsciiwJeFECYVdw4/HO0XRZNmxHVGS3BZZmkTVBLR9fTHiHcdoOSeVNe8QRj5aJkObogCiLq46gS0bgvyL5spiQfMynIi59swpkekt+B0dTYFTMVcNo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718585964; c=relaxed/simple; bh=nLaJ763JoKOtacNJ6G+28sdnSJvU/Bxl80quLsGmOX8=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=dFOfya2GB9fSHTUP5dBe34eH5m9u9GnRtUfRH+dqkN2E5M9Dh02RrbSvHF2FoTGam55XIiAbfOjF5UH9mlIs/Ezo9Fy5VAL97Z3DZ+m9JY7kTCFJHdrloQA9jsLZWp0QhTEG/uDy/wMZeQY4HKLzPL+QK0qLYMnmRjegouTYtr0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com; spf=pass smtp.mailfrom=quicinc.com; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b=PcM92Xnc; arc=none smtp.client-ip=205.220.168.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=quicinc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="PcM92Xnc" Received: from pps.filterd (m0279867.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 45GN9UQR009282; Mon, 17 Jun 2024 00:59:02 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= PyLW/o4dvKubRNegnKftn1L2MxxP06Jt3vQL+ViGRzg=; b=PcM92XncvLJm7Bcf ZEObgNDzNsEc7BzzTSSBO61m7KlX+gBfhbFC64whsECPMYFOgQb1DDdeHfQaRxYb qB1lnhydFqF5E1tunmahSIIq4KHsCyGWHCoV8rpkBLbKfK2Jbtfh9nrsHbkBTAHM Y4sWVcYQmBZ+Puhd4guoPiNnBezrYIT0suCIq6Jg5pvsEdqqLkgZCqvbFdAhzTuD I5M92owMnCOxuiF6XXl60DMzjsMDgvVH0k0/peZRkh8bhwAr13kgGMLbs00aJJD0 aUQJ6fp8bcGzS2gItHDeQ2a82aKe8xLCd8J0CdMnR9AZk0NOpIwBp2IcJZKz3cQp SfcBZg== Received: from nalasppmta03.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3ys0nfancw-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 17 Jun 2024 00:59:02 +0000 (GMT) Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA03.qualcomm.com (8.17.1.19/8.17.1.19) with ESMTPS id 45H0x1RS027026 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 17 Jun 2024 00:59:01 GMT Received: from hu-gaurkash-lv.qualcomm.com (10.49.16.6) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Sun, 16 Jun 2024 17:58:55 -0700 From: Gaurav Kashyap To: , , , , , , , , CC: , , , , , , , , , , , , , , , , , , Gaurav Kashyap Subject: [PATCH v5 11/15] ufs: host: implement derive sw secret vop in ufs qcom Date: Sun, 16 Jun 2024 17:51:06 -0700 Message-ID: <20240617005825.1443206-12-quic_gaurkash@quicinc.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240617005825.1443206-1-quic_gaurkash@quicinc.com> References: <20240617005825.1443206-1-quic_gaurkash@quicinc.com> Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nalasex01b.na.qualcomm.com (10.47.209.197) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: vb7tgVaQXLuMDxtqaTML0qMnqllkXHUa X-Proofpoint-ORIG-GUID: vb7tgVaQXLuMDxtqaTML0qMnqllkXHUa X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-06-16_12,2024-06-14_03,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 phishscore=0 adultscore=0 clxscore=1015 suspectscore=0 spamscore=0 priorityscore=1501 lowpriorityscore=0 mlxlogscore=999 impostorscore=0 bulkscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2405170001 definitions=main-2406170006 UFS core defines a variant op to tie the corresponding derive software secret blk crypto op to the vendor specific implementation of wrapped keys. This patch implements this variant op. Tested-by: Neil Armstrong Signed-off-by: Gaurav Kashyap --- drivers/ufs/host/ufs-qcom.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c index 16f846f4a0c3..d6ac9c147303 100644 --- a/drivers/ufs/host/ufs-qcom.c +++ b/drivers/ufs/host/ufs-qcom.c @@ -182,9 +182,23 @@ static int ufs_qcom_ice_program_key(struct ufs_hba *hba, return qcom_ice_evict_key(host->ice, slot); } +/* + * Derive a software secret from a hardware wrapped key. The key is unwrapped in + * hardware from trustzone and a software key/secret is then derived from it. + */ +static int ufs_qcom_ice_derive_sw_secret(struct ufs_hba *hba, const u8 wkey[], + unsigned int wkey_size, + u8 sw_secret[BLK_CRYPTO_SW_SECRET_SIZE]) +{ + struct ufs_qcom_host *host = ufshcd_get_variant(hba); + + return qcom_ice_derive_sw_secret(host->ice, wkey, wkey_size, sw_secret); +} + #else #define ufs_qcom_ice_program_key NULL +#define ufs_qcom_ice_derive_sw_secret NULL static inline void ufs_qcom_ice_enable(struct ufs_qcom_host *host) { @@ -1810,6 +1824,7 @@ static const struct ufs_hba_variant_ops ufs_hba_qcom_vops = { .device_reset = ufs_qcom_device_reset, .config_scaling_param = ufs_qcom_config_scaling_param, .program_key = ufs_qcom_ice_program_key, + .derive_sw_secret = ufs_qcom_ice_derive_sw_secret, .reinit_notify = ufs_qcom_reinit_notify, .mcq_config_resource = ufs_qcom_mcq_config_resource, .get_hba_mac = ufs_qcom_get_hba_mac,