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charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjMwMDExNCBTYWx0ZWRfX46I1CQB8tdI4 oQU/OpIIH25J0ygWmVVFtfrGxCG48I930UNOSqUaBCKlnD/gsHKUrH7LxkoNTUOkOF0p+Ok2MKe bmqMdblQlvLA8Q/JEFVSwMIoMogdC/U+GA1PAMie6oNjOv8rNrjhRE/mKTbbaxJrJAixo3deANV ZsuCp11eDGsvE+I++XIMK/sm75QA8UxgVigd19KhoQbYT13mkNouUlUK/pM9dBIyLmCCTJwhbCu 6lJNycR52TzvxXfrV62JvmF7OtLQuCCDmr/5m2L0Ebizci9PQjY6tsb9Srl6abRGZZrJ2E7OQmm lFkhomwfT7OOD7N5ULHTZzUgln2BPitlJjHjywj6n/BK+CEHfgIyxaOOGmSC38sgQ5ZkokZC4gQ PXfdkXFObFavAWOQPwSn7T92aIYJv6FOWCZc6dc1aYPVrFDeAnuQja5GOZHce2TA/r2R2A9SmhZ 0Am3YJHiPo/IG9B621w== X-Proofpoint-ORIG-GUID: M9ZVktxmf9ud1qgYQtyvAZtVChMv0-BQ X-Proofpoint-GUID: M9ZVktxmf9ud1qgYQtyvAZtVChMv0-BQ X-Authority-Analysis: v=2.4 cv=ftfsol4f c=1 sm=1 tr=0 ts=6a43b4d6 cx=c_pps a=UbhLPJ621ZpgOD2l3yZY1w==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=FelO9ux0wxsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_glEPmIy2e8OvE2BGh3C:22 a=EUspDBNiAAAA:8 a=DWWpLck2SfFL7czMIZ0A:9 a=QEXdDO2ut3YA:10 a=TOPH6uDL9cOC6tEoww4z:22 X-Proofpoint-Spam-Info: AW1haW4tMjYwNjMwMDExNCBTYWx0ZWRfX6aaWdpzwadYn 7q2qOVUjMzJcRI+V7pLTKlp25YmzVoL3n221sy45DHQWrKwC8PUZsJ9ASuvJwzDcouDzQlgXGxm wdkjVAeRjGYsK1ncq35PgnA7aQswecg= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-30_03,2026-06-26_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 adultscore=0 spamscore=0 clxscore=1015 malwarescore=0 phishscore=0 impostorscore=0 bulkscore=0 lowpriorityscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2606300114 On 6/26/26 3:34 PM, Sumit Garg wrote: > From: Sumit Garg > > Qcom platforms has the legacy of using non-standard SCM calls > splintered over the various kernel drivers. These SCM calls aren't > compliant with the standard SMC calling conventions which is a > prerequisite to enable migration to the FF-A specifications from Arm. > > OP-TEE as an alternative trusted OS to Qualcomm TEE (QTEE) can't > support these non-standard SCM calls. And even for newer architectures > using S-EL2 with Hafnium support, QTEE won't be able to support SCM > calls either with FF-A requirements coming in. And with both OP-TEE > and QTEE drivers well integrated in the TEE subsystem, it makes further > sense to reuse the TEE bus client drivers infrastructure. > > The added benefit of TEE bus infrastructure is that there is support > for discoverable/enumerable services. With that client drivers don't > have to manually invoke a special SCM call to know the service status. > > So enable the generic Peripheral Authentication Service (PAS) provided > by the firmware. It acts as the common layer with different TZ > backends plugged in whether it's an SCM implementation or a proper > TEE bus based PAS service implementation. > > Reviewed-by: Mukesh Ojha > Tested-by: Mukesh Ojha # Lemans > Reviewed-by: Harshal Dev > Tested-by: Vignesh Viswanathan # IPQ9650 > Signed-off-by: Sumit Garg > --- [...] > +struct qcom_pas_context { > + struct device *dev; > + u32 pas_id; > + phys_addr_t mem_phys; > + size_t mem_size; > + void *ptr; > + dma_addr_t phys; > + ssize_t size; > + bool use_tzmem; > +}; Redefining this instead of moving the definition (this is a cross- subsystem merge anyway) makes things more difficult, as there are patches from another team touching this struct.. hopefully no kaboom.. Konrad