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Wed, 24 Jun 2026 01:35:00 -0700 (PDT) X-Received: by 2002:a05:6a00:b46:b0:842:7992:bdd6 with SMTP id d2e1a72fcca58-845a2cad138mr3014577b3a.36.1782290099604; Wed, 24 Jun 2026 01:34:59 -0700 (PDT) Received: from [10.219.57.229] ([202.46.23.19]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-845a40f4722sm1628731b3a.43.2026.06.24.01.34.55 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 24 Jun 2026 01:34:59 -0700 (PDT) Message-ID: Date: Wed, 24 Jun 2026 14:04:54 +0530 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v22 04/13] firmware: psci: Introduce command-based resets To: Lorenzo Pieralisi , Arnd Bergmann , Sebastian Reichel , Mark Rutland , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Souvik Chakravarty , Bartosz Golaszewski , Sudeep Holla Cc: krzk+dt@kernel.org, conor+dt@kernel.org, devicetree@vger.kernel.org, robh@kernel.org, sashiko-reviews@lists.linux.dev References: <20260514-arm-psci-system_reset2-vendor-reboots-v22-4-28a5bde07483@oss.qualcomm.com> <20260514212353.881AFC2BCB8@smtp.kernel.org> Content-Language: en-US From: Shivendra Pratap In-Reply-To: <20260514212353.881AFC2BCB8@smtp.kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: nzbGMSCnxwCGmuq7mys2eD0PmMBsuEww X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjI0MDA3MCBTYWx0ZWRfX/Wjts3R1V0Ka tHyan+33VQn4AMHj+4ny/Ba8ekVNvdvKyoHVNHfDZC3L7hrIWgjB5appF9JK8hdexEL+MtKdd4r QdFgRBx02oyMOxSHcfKqd2ayFtelJY9FtlJcZaeMvMNoEhzMqxDCAo89fc8op/JAIChhiDA360B oVabkQ2bsH6gs+HpnD9PTA1fLFGxfC006VZBgEyvepl2mMGqf7f/c7MNlkxjs8L271JkXehTI37 mALVQlGI7B2mTPoaH4J2KiuN0GK11idczzhCMFTAAdkKqgMFLO1g+T/SpLi6wdBBsO/o1skSg+/ BLPJIsUZQaUogRKuHbqQUwOg73EzAi03wXIc7392fsbGgwvlN0iFu6Z3mGDZBr6B+VOvd127K/t QIagjuUYvAou/Z3kzY4eUR+/+awlok1+pGU4qy02ryH75rumeWvnqkVKK+6+M70LGtqJNwI0vvC 3YKu438OG2HeHf7VLQQ== X-Proofpoint-Spam-Info: AW1haW4tMjYwNjI0MDA3MCBTYWx0ZWRfX0UYUEEfKPtnk 1Bh0pCyv2F+ZAn3WRuyZNVNKukcPDMe2yX7JdXKqYmN/9oRntraFL1WuWupZEi4HdmbT1hwIeMz lw/9qWFYE4J568SiJ7DKNXV4ZrooY5Y= X-Authority-Analysis: v=2.4 cv=NpbhtcdJ c=1 sm=1 tr=0 ts=6a3b96b4 cx=c_pps a=m5Vt/hrsBiPMCU0y4gIsQw==:117 a=j4ogTh8yFefVWWEFDRgCtg==:17 a=IkcTkHD0fZMA:10 a=FelO9ux0wxsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=ZpdpYltYx_vBUK5n70dp:22 a=VwQbUJbxAAAA:8 a=Mda6OO27nty_hdtp-zcA:9 a=QEXdDO2ut3YA:10 a=IoOABgeZipijB_acs4fv:22 X-Proofpoint-ORIG-GUID: nzbGMSCnxwCGmuq7mys2eD0PmMBsuEww 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=2026-06-24_02,2026-06-23_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 suspectscore=0 phishscore=0 malwarescore=0 lowpriorityscore=0 priorityscore=1501 bulkscore=0 adultscore=0 spamscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2606240070 On 15-05-2026 02:53, sashiko-bot@kernel.org wrote: > - [High] The API illegally truncates the 64-bit PSCI SYSTEM_RESET2 cookie parameter to 32 bits, violating the ARM PSCI specification. Hi Lorenzo, Was going through this comment. The patch currently uses a 32 bit cookie. The spec also talks about "SMC64 - uint64 - cookie". Can you please suggest if we should add support for 64 bit cookie here? This will require a re-design for supporting about up-to three 32-bit numbers in reboot-mode framework. thanks, Shivendra