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Tue, 22 Apr 2025 04:38:45 +0000 (GMT) From: Aditya Gupta To: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Nicholas Piggin , Daniel Henrique Barboza Cc: Mahesh J Salgaonkar , Madhavan Srinivasan , , Subject: [PATCH v5 0/2] Deprecate Power8E and Power8NVL Date: Tue, 22 Apr 2025 10:08:41 +0530 Message-ID: <20250422043843.26115-1-adityag@linux.ibm.com> X-Mailer: git-send-email 2.49.0 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Authority-Analysis: v=2.4 cv=cM/gskeN c=1 sm=1 tr=0 ts=68071d5e cx=c_pps a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17 a=IkcTkHD0fZMA:10 a=XR8D0OoHHMoA:10 a=VwQbUJbxAAAA:8 a=VnNF1IyMAAAA:8 a=31Clpgyuveq3k6-D5LcA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-GUID: QEPb0y5_olgQRMGtj5Qjh5kewuQSL5A0 X-Proofpoint-ORIG-GUID: II3QaQu_GkJ1czLIEVMtYAMZIIWo1zlQ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1095,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-04-22_02,2025-04-21_02,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 clxscore=1015 impostorscore=0 lowpriorityscore=0 spamscore=0 mlxscore=0 adultscore=0 bulkscore=0 malwarescore=0 mlxlogscore=999 priorityscore=1501 suspectscore=0 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2502280000 definitions=main-2504220033 Received-SPF: pass client-ip=148.163.158.5; envelope-from=adityag@linux.ibm.com; helo=mx0b-001b2d01.pphosted.com X-Spam_score_int: -26 X-Spam_score: -2.7 X-Spam_bar: -- X-Spam_report: (-2.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Power8E and Power8NVL are not maintained, and not useful to qemu, and upstream skiboot also has removed support till Power8 DD1. Power8NVL CPU doesn't boot since skiboot v7.0, or following skiboot commit to be exact: commit c5424f683ee3 ("Remove support for POWER8 DD1") No direct way to deprecate the pnv chips, a field like deprecation_note could be added, but felt not needed as the chip will only get used if the user requests corresponding 8E / 8NVL CPU, which will print deprecation warning. Also, no separate pnv machine for 8E and 8NVL, user has to pass --cpu, which will throw the deprecation warning. So just deprecating CPUs should be enough. Changelog ========= v5: + split into 2 patches, defining macro, and deprecating 8e & 8nvl v4 (https://lore.kernel.org/qemu-devel/20250330211012.2932258-1-adityag@linux.ibm.com/): + remove unnecessary 'if' v3: + add 'deprecation_note' argument to the POWERPC_DEPRECATED_CPU macro v2: + add mention to docs/about/deprecated.rst + add '(deprecated)' in output of qemu-system-ppc64 --cpu help Base Commit: a9cd5bc6399a80fcf233ed0fffe6067b731227d8 Aditya Gupta (2): target/ppc: Introduce macro for deprecating PowerPC CPUs target/ppc: Deprecate Power8E and Power8NVL docs/about/deprecated.rst | 9 +++++++++ target/ppc/cpu-models.c | 20 +++++++++++++++----- target/ppc/cpu_init.c | 7 ++++++- 3 files changed, 30 insertions(+), 6 deletions(-) -- 2.49.0