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GET /api/1.1/patches/2227765/?format=api
{ "id": 2227765, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2227765/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-ppc/patch/20260424083837.214947-7-adityag@linux.ibm.com/", "project": { "id": 69, "url": "http://patchwork.ozlabs.org/api/1.1/projects/69/?format=api", "name": "QEMU powerpc development", "link_name": "qemu-ppc", "list_id": "qemu-ppc.nongnu.org", "list_email": "qemu-ppc@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20260424083837.214947-7-adityag@linux.ibm.com>", "date": "2026-04-24T08:38:33", "name": "[v6,06/10] pnv/mpipl: Set thread entry size to be allocated by firmware", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "2e13b5bf6ebc2fad50618e28174d2d4d0a18bac1", "submitter": { "id": 86610, "url": "http://patchwork.ozlabs.org/api/1.1/people/86610/?format=api", "name": "Aditya Gupta", "email": "adityag@linux.ibm.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-ppc/patch/20260424083837.214947-7-adityag@linux.ibm.com/mbox/", "series": [ { "id": 501319, "url": "http://patchwork.ozlabs.org/api/1.1/series/501319/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-ppc/list/?series=501319", "date": "2026-04-24T08:38:28", "name": "Implement MPIPL for PowerNV", "version": 6, "mbox": "http://patchwork.ozlabs.org/series/501319/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2227765/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2227765/checks/", "tags": {}, "headers": { "Return-Path": "<qemu-ppc-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256\n header.s=pp1 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:content-transfer-encoding:date:from:in-reply-to:message-id\n :mime-version:references:subject:to; s=pp1; bh=qPFS081akU8hR3rm8\n VprqXJ4JCIYb/A4K8GZfM5+G00=; b=jrfbzpBkNCtkS/U3rYnrCDUoMSHGlACbw\n kkaPqHz6Etmz73TeXOeEtmOEQh2FLjgoSaArZmPUxTezdl4EE5bL9ar1hbAEdxeO\n 2WuF3ysIWask8wR4f1JBv4u9lzdp3SLyoiKf3iVW1rD6uzfbk4QG94bdU1Qhxl3I\n UmwJeCr1/amW9OhI/7j7CujNHk+5rBGxEJlTABicaZNr2H2fIVz1p3sz1ihQtFYw\n Tfw6goc/EZFXh8gE96nKZlOl1/yhy44vmBTjFk0h8AM0pRCtuGHnRuhKp7W5J6np\n mdp+sCzH3dPwUiI3/kC0bVBL3E4XhOVUZ2KcQeZRuOf+LzD2hPG3A==", "From": "Aditya Gupta <adityag@linux.ibm.com>", "To": "<qemu-devel@nongnu.org>", "Cc": "<qemu-ppc@nongnu.org>, Hari Bathini <hbathini@linux.ibm.com>,\n Sourabh Jain <sourabhjain@linux.ibm.com>,\n Harsh Prateek Bora <harshpb@linux.ibm.com>,\n Nicholas Piggin <npiggin@gmail.com>,\n Miles Glenn <milesg@linux.ibm.com>, Chinmay Rath <rathc@linux.ibm.com>,\n Shivang Upadhyay <shivangu@linux.ibm.com>", "Subject": "[PATCH v6 06/10] pnv/mpipl: Set thread entry size to be allocated by\n firmware", "Date": "Fri, 24 Apr 2026 14:08:33 +0530", "Message-ID": "<20260424083837.214947-7-adityag@linux.ibm.com>", "X-Mailer": "git-send-email 2.53.0", "In-Reply-To": "<20260424083837.214947-1-adityag@linux.ibm.com>", "References": "<20260424083837.214947-1-adityag@linux.ibm.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-TM-AS-GCONF": "00", "X-Proofpoint-Reinject": "loops=2 maxloops=12", "X-Proofpoint-ORIG-GUID": "Aqp0Dw4H-ByUSyZeyGt1c_Zj11Amcehg", "X-Authority-Analysis": "v=2.4 cv=Ksp9H2WN c=1 sm=1 tr=0 ts=69eb2c3e cx=c_pps\n a=AfN7/Ok6k8XGzOShvHwTGQ==:117 a=AfN7/Ok6k8XGzOShvHwTGQ==:17\n a=A5OVakUREuEA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22\n a=Y2IxJ9c9Rs8Kov3niI8_:22 a=VnNF1IyMAAAA:8 a=cAoldatroyQ9OnmYqHEA:9", "X-Proofpoint-GUID": "JSC2oiNw0X4-YxsRvkW4-aNjr9dEeA3a", "X-Proofpoint-Spam-Details-Enc": "AW1haW4tMjYwNDI0MDA3NiBTYWx0ZWRfX+3LS4BojVzw3\n 33bLMDy/8+bTufepPpmBM5W307wjXGFKWMMwdg8xGPwGR+TNZWPib2SdWD9Qknd2sc3gZgfMwjl\n g3dRIm7W/ewZH/0FKZxPShx8M/ByU6zU2V0cfPpfyKqg7copTrvzMizkybZr023p9JzKIXohzmL\n DC4FinfOjoBMqoOx6ujEpZM+sBmLvxUl9rMDSiMU7MbKgcdLaf0RWY4/EPov2meMpFdbz2GI83k\n sCbNhyVhUDf/IxOohdDxkAfQ7be/keURS5BLgqydRNvNw5W62S8oiqs5RRDgiAiITR6/3sTuCpW\n f6S2bSriCAvHijsl+9I1gg3A424M8oY7+5dNldNMh+TCfUFYgQGk1Tf6Hpdb+cLYdXF9NB5QPfL\n loi1/iAX0e93MmSC+UA/cpd0nY+qlgD32qlrVS0zAqYxxtmzUiNEGtsDD3/zQobde5LO/ViZPjj\n 4p/JJRcNo8k6YtVnXEA==", "X-Proofpoint-Virus-Version": "vendor=baseguard\n engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49\n definitions=2026-04-23_03,2026-04-21_02,2025-10-01_01", "X-Proofpoint-Spam-Details": "rule=outbound_notspam policy=outbound score=0\n bulkscore=0 impostorscore=0 malwarescore=0 phishscore=0 priorityscore=1501\n lowpriorityscore=0 clxscore=1015 adultscore=0 suspectscore=0 spamscore=0\n classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0\n reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2604240076", "Received-SPF": "pass client-ip=148.163.158.5;\n envelope-from=adityag@linux.ibm.com;\n 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,\n DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7,\n RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001,\n SPF_PASS=-0.001 autolearn=ham autolearn_force=no", "X-Spam_action": "no action", "X-BeenThere": "qemu-ppc@nongnu.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "<qemu-ppc.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-ppc>,\n <mailto:qemu-ppc-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-ppc>", "List-Post": "<mailto:qemu-ppc@nongnu.org>", "List-Help": "<mailto:qemu-ppc-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-ppc>,\n <mailto:qemu-ppc-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-ppc-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-ppc-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "Set the \"Thread Register State Entry Size\" that is required by firmware\n(OPAL), to know size of memory to allocate to capture CPU state, in the\nevent of a crash\n\nReviewed-by: Hari Bathini <hbathini@linux.ibm.com>\nReviewed-by: Sourabh Jain <sourabhjain@linux.ibm.com>\nSigned-off-by: Aditya Gupta <adityag@linux.ibm.com>\n---\n hw/ppc/pnv.c | 25 +++++++++++++++++++++++++\n 1 file changed, 25 insertions(+)", "diff": "diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c\nindex 524563dcfc23..09b69c355a45 100644\n--- a/hw/ppc/pnv.c\n+++ b/hw/ppc/pnv.c\n@@ -748,10 +748,35 @@ static void pnv_powerdown_notify(Notifier *n, void *opaque)\n \n static void pnv_reset(MachineState *machine, ResetType type)\n {\n+ PnvMachineState *pnv = PNV_MACHINE(machine);\n void *fdt;\n \n qemu_devices_reset(type);\n \n+ if (!pnv->mpipl_state.is_next_boot_mpipl) {\n+ /*\n+ * Set the \"Thread Register State Entry Size\", so that firmware can\n+ * allocate enough memory to capture CPU state in the event of a\n+ * crash\n+ */\n+\n+ MpiplProcDumpArea proc_area;\n+\n+ proc_area.version = PROC_DUMP_AREA_VERSION_P9;\n+ proc_area.thread_size = cpu_to_be32(sizeof(MpiplPreservedCPUState));\n+\n+ /* These are to be allocated & assigned by the firmware */\n+ proc_area.alloc_addr = 0;\n+ proc_area.alloc_size = 0;\n+\n+ /* These get assigned after crash, when QEMU preserves the registers */\n+ proc_area.dest_addr = 0;\n+ proc_area.act_size = 0;\n+\n+ cpu_physical_memory_write(PROC_DUMP_AREA_OFF, &proc_area,\n+ sizeof(proc_area));\n+ }\n+\n fdt = machine->fdt;\n cpu_physical_memory_write(PNV_FDT_ADDR, fdt, fdt_totalsize(fdt));\n }\n", "prefixes": [ "v6", "06/10" ] }