From mboxrd@z Thu Jan 1 00:00:00 1970 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 BA7233ACF06 for ; Mon, 4 May 2026 11:53:12 +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=1777895594; cv=none; b=cNlFj9vg6ZCIJUECGeMbDKalY9SrvksFOzzLpXCbE1mMc0PlbUQfHJ/MtOlhM42k7R9zVPburwEAD7i1469fp1UlrJMYTXsH1sQxB8A1mqguVCYxxsPCSPT4OhLc1lKVrrBvut8M7pHA8lKD9sl6fO93TnAhZP40KeJUUxCDAVk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777895594; c=relaxed/simple; bh=h+f4WvNTMiPEVbnZUsHfPHPq+L80RhcaNVi5YLbSxL8=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=gBY8KZp2mDXURiDLz9dLWCseTGcePUU7jKHavPL14Cek/myorLVXutWXErPlleaLMzKA2CzVUbKkTsngWbe3GTfwbfiCgALQEvta4gcxRgXoPeTj61YFY0edGXxZ19uvimAUa2lb+f2g4zy0iqXAmDOOu2r1fFEQwf77sm86tHQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com; spf=pass smtp.mailfrom=oss.qualcomm.com; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b=NWLzZfQs; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=UqvoFhOK; arc=none smtp.client-ip=205.220.168.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b="NWLzZfQs"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="UqvoFhOK" Received: from pps.filterd (m0279862.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 644B4ITo1531315 for ; Mon, 4 May 2026 11:53:12 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= BuofvOz/5FZrPdq3bPa3pWgfvPCVCJgpGjMM0k7A5g4=; b=NWLzZfQs1QlELHxn Y1ouGGR/3tqN8ojHkqnjfLgF1IK/OIqHS5RHdcpzFyKtdwoP5X5r/DCZUZc7krRo TrF6mHKpb+/bJSBB9lQ75B6mueu3BTq7z5yc+c0NwZz++6Pg9yjDbFLpXpQ6Lyqf r3Kw9FxVBslB7ggKcIkMB5xb+WUTynpy2x7FvKofWwRAWl3/GRlbBxbZe+GgePjT Mbt09jiAlfiu3vQQoWVZl7M6t0MRbDk++4xk6Ve2bL7nSUXvzNszozWKA76jxQLc 4dWBFjc97K98NkzUZTIsO2Gr4ad7xNfm6OJuVZfCAGgLHQ4pp/lKwlVCHumQ9jp0 40+4dw== Received: from mail-pj1-f71.google.com (mail-pj1-f71.google.com [209.85.216.71]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4dwa1enf5a-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Mon, 04 May 2026 11:53:11 +0000 (GMT) Received: by mail-pj1-f71.google.com with SMTP id 98e67ed59e1d1-362eb03240bso4926238a91.3 for ; Mon, 04 May 2026 04:53:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1777895591; x=1778500391; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=BuofvOz/5FZrPdq3bPa3pWgfvPCVCJgpGjMM0k7A5g4=; b=UqvoFhOKQfwM2AEeQKrZi/oe/GyXoN3E3PpEGufpqmNoqbGMTgPx8sVHrxowrAjVic WAx3W+SZe2seGi8KuRB01FivhYqtU7oe2182dAKqWrlp8wLsgjmJ9ERq3G7FHgYU82vA NjQmqsTdhc1qLET0HeGW2NyE5YEShNxGdmPToUAOdVdiJORXxu+2/pmOIWRd1VO8vX8R QyHohR/19GuhkkWEj7HfJdjhmUWnQIquC+zX8MX/5doOw9/So3VcKelOxQ6afHgqnNKS zWdY3NA9DaYvC+WoT/nlSEHegK5tpopELhy4XUcB/LWFHQLixS9fbeDhwcnKqDRZ6cvc dwDA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1777895591; x=1778500391; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :x-gm-gg:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=BuofvOz/5FZrPdq3bPa3pWgfvPCVCJgpGjMM0k7A5g4=; b=HP1PCrNrkATQeJB/RPeWpYGhR3mZODST/lTs6jp3fjNnreKxD7H7eMzc5ysT0tsJuO /oQG7OPfxmIMm5mNX5i0HpO2gkoXjwCl92UXcdgJXDdIYmh6oZjQXh0t1ETlUU1QWdNF YDOCOXM2rZ1FWGT5QO8W7Bo3Yi0GTKOx7TUwb+yS/eVsWm/hf/7AabRFXWKkiPlR9Tzt 7i7bcIo3a8JjkADzioDbd/IuXgGiXxtrwI+yz7zOu/9rXdOIO6TCxhFiG0ka9xIOrK8P 13j4EfKnqEhXhxrvgKgbtShdF48FVFlQa26xjzy2e/0C40oH00VkhPEdt/OVP1Fj7e0D Pu1A== X-Forwarded-Encrypted: i=1; AFNElJ8VTUcv0VYTnEis5tl3hp8vyJtb7hY50Eo3scoEwzjtcvjBO6tUFgr4QkRolnBDZ4MPD4DCyHQ=@vger.kernel.org X-Gm-Message-State: AOJu0YyRsN7b1gKi3Dfl3QKSgsZNIuVuOOyNcdIhhzN0UMDE1ZPutHeI 9Tn3st/kF68cptQuBT/11ixzxk5Boiy/a4bDRqZn1T5/YKnPWvZpGZleGKEUixCvrU07OuWe6I7 Adoe+xlnSGRe26cLAwXIznbXKPxAPbNx9hMu14RHic4vYeszjP63bAuBbLTs= X-Gm-Gg: AeBDietnUSknOW0aCtxGUDZT5JDkp6eqwJ5Esym9FoHAl7Q+m3syi8R7foQcTVHBrlK qAEXVDngwIDKlUbwuMquYi53Zs5J/oQDEcugrmaImP6CNOOHABkEU2F9kEJ16sAZQhSNuJAT9Qo klOWVtl5TCM2PAfLLVA1qlm93GYyr2L5CTGbB2HzRfe+j6dsq+X5A5FtYu5pY8sRO7rM/08vCCK pgW7S6OPZ9jxiqiMJMJ9kqTDM0WsjwFZ7FaEDVuBf/avdSDtgbo5UGz8Pp4cF0grwnE3XIt/6mS 9Wy3MU7u0e9LrMaXjkuaZAwcuptubWkWnVPF8IosAF4HFVWJIQgNO/Pi/r3fEJCyYyoHH9zhmIT DRMjzFMsIU0O+MLedMIUPuLSEz5+oy35EfJ8+XKP0wh6hBG/YscWm8kXPnlcke5c= X-Received: by 2002:a17:90b:4b90:b0:359:fd9a:c50c with SMTP id 98e67ed59e1d1-3650ce4793fmr9409764a91.22.1777895591037; Mon, 04 May 2026 04:53:11 -0700 (PDT) X-Received: by 2002:a17:90b:4b90:b0:359:fd9a:c50c with SMTP id 98e67ed59e1d1-3650ce4793fmr9409732a91.22.1777895590521; Mon, 04 May 2026 04:53:10 -0700 (PDT) Received: from [192.168.29.116] ([49.37.150.129]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-364ec02ab2fsm11431599a91.14.2026.05.04.04.52.56 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 04 May 2026 04:53:10 -0700 (PDT) Message-ID: <6515558f-99c5-43c4-9141-4bd4a2be6317@oss.qualcomm.com> Date: Mon, 4 May 2026 17:22:53 +0530 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 04/15] firmware: qcom: Add a PAS TEE service To: Sumit Garg Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-media@vger.kernel.org, netdev@vger.kernel.org, linux-wireless@vger.kernel.org, ath12k@lists.infradead.org, linux-remoteproc@vger.kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, robin.clark@oss.qualcomm.com, sean@poorly.run, akhilpo@oss.qualcomm.com, lumag@kernel.org, abhinav.kumar@linux.dev, jesszhan0024@gmail.com, marijn.suijten@somainline.org, airlied@gmail.com, simona@ffwll.ch, vikash.garodia@oss.qualcomm.com, dikshita.agarwal@oss.qualcomm.com, bod@kernel.org, mchehab@kernel.org, elder@kernel.org, andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, jjohnson@kernel.org, mathieu.poirier@linaro.org, trilokkumar.soni@oss.qualcomm.com, mukesh.ojha@oss.qualcomm.com, pavan.kondeti@oss.qualcomm.com, jorge.ramirez@oss.qualcomm.com, tonyh@qti.qualcomm.com, vignesh.viswanathan@oss.qualcomm.com, srinivas.kandagatla@oss.qualcomm.com, amirreza.zarrabi@oss.qualcomm.com, op-tee@lists.trustedfirmware.org, apurupa@qti.qualcomm.com, skare@qti.qualcomm.com, linux-kernel@vger.kernel.org, Sumit Garg , Bjorn Andersson , Konrad Dybcio References: <20260427095603.1157963-1-sumit.garg@kernel.org> <20260427095603.1157963-5-sumit.garg@kernel.org> Content-Language: en-US From: Harshal Dev In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-ORIG-GUID: gZNA5TOYZ26WeurAdOzYXfPdN0Gn1TVG X-Proofpoint-GUID: gZNA5TOYZ26WeurAdOzYXfPdN0Gn1TVG X-Authority-Analysis: v=2.4 cv=e7U2j6p/ c=1 sm=1 tr=0 ts=69f888a7 cx=c_pps a=UNFcQwm+pnOIJct1K4W+Mw==:117 a=fKl8XJY0368M7tBUixYpxw==:17 a=IkcTkHD0fZMA:10 a=NGcC8JguVDcA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_K5XuSEh1TEqbUxoQ0s3:22 a=P-IC7800AAAA:8 a=EUspDBNiAAAA:8 a=w6fE4RYvq4DoGGcOsJAA:9 a=QEXdDO2ut3YA:10 a=uKXjsCUrEbL0IQVhDsJ9:22 a=d3PnA9EDa4IxuAV0gXij:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTA0MDEyNiBTYWx0ZWRfX7pXdoWRqJfp8 TKJWoOAztXkIT9Y/Pq1c93S8FwB7Y3IoIvHaIMy4gTcajvNFr/BaBe5Gb3WOYQeZ05tFXSxoWGB riVsERS5BSBdCLCzMXFJCC2vGe8M0uHolYPvijujUJoGZP8vaOjv6u8XTOpVbZqJejbk6MWOWp6 B4o/rnaYZvR4X6bqAhbCb98WGUF9HOcQ6TpluxWYenQjjfIaS2I0e6/SC3rYZGhHbTh5E5B8M2y xHsoiYeGieN9u957CpRb9rzHNxV+0hFCuten1LVescaywppS3y5SQS57ulTCmnY9E0ejgOU1mlk QrjCMZTZCEmlvERibBEHhIO2oHqaynTECE01xsXsL+CsatHcEDusRyxu1SGdY612BlbSzLD+0U5 qSKjUx85qcdW0/7nG5ZLB037xfflGgu9XhQ+pmtdvF1srIvCJcVQAvOG3q9BWkwNdV5z8chl/L0 D1WrENo9UD4igzHSQuQ== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-05-04_04,2026-04-30_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 adultscore=0 lowpriorityscore=0 priorityscore=1501 bulkscore=0 clxscore=1015 impostorscore=0 malwarescore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2605040126 On 5/4/2026 4:57 PM, Sumit Garg wrote: > On Mon, May 04, 2026 at 03:33:06PM +0530, Harshal Dev wrote: >> Hi Sumit, >> >> On 4/27/2026 3:25 PM, Sumit Garg via OP-TEE wrote: >>> From: Sumit Garg >>> >>> Add support for Peripheral Authentication Service (PAS) driver based >>> on TEE bus with OP-TEE providing the backend PAS service implementation. >>> >>> The TEE PAS service ABI is designed to be extensible with additional API >>> as PTA_QCOM_PAS_CAPABILITIES. This allows to accommodate any future >>> extensions of the PAS service needed while still maintaining backwards >>> compatibility. >>> >>> Signed-off-by: Sumit Garg >>> --- >>> drivers/firmware/qcom/Kconfig | 10 + >>> drivers/firmware/qcom/Makefile | 1 + >>> drivers/firmware/qcom/qcom_pas_tee.c | 479 +++++++++++++++++++++++++++ >>> 3 files changed, 490 insertions(+) >>> create mode 100644 drivers/firmware/qcom/qcom_pas_tee.c >> >> [...] >> >>> diff --git a/drivers/firmware/qcom/qcom_pas_tee.c b/drivers/firmware/qcom/qcom_pas_tee.c >> >>> +static int qcom_pas_tee_mem_setup(struct device *dev, u32 pas_id, >>> + phys_addr_t addr, phys_addr_t size) >>> +{ >> >> [...] >> >>> + >>> + ret = tee_client_invoke_func(data->ctx, &inv_arg, param); >>> + if (ret < 0 || inv_arg.ret != 0) { >>> + dev_err(dev, "PAS mem setup failed, pas_id: %d, ret: %d, err: 0x%x\n", >>> + pas_id, ret, inv_arg.ret); >>> + return ret ?: -EINVAL; >> >> Following the example from qcom_scm_pas_mem_setup() here: >> https://elixir.bootlin.com/linux/v7.0.1/source/drivers/firmware/qcom/qcom_scm.c#L778 >> >> I think it should be: >> return ret ?: inv_arg.ret; > > inv_arg.ret return a GP TEE error code which doesn't map 1:1 to kernel > error codes. The client drivers won't benefit without having a way to > decode those errors. So just printing here can help the user to debug > any issues. > >> >> This way the client (say mdt_loader) knows what error OPTEE PAS service returned. >> I can see that is tries to print this error: >> https://elixir.bootlin.com/linux/v7.0.1/source/drivers/soc/qcom/mdt_loader.c#L286 >> >> With that, >> Reviewed-by: Harshal Dev >> > > Thanks, I hope with above I can keep your tag. > Alright sure, makes sense. Please keep the tag. Regards, Harshal > -Sumit