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Thu, 23 Oct 2025 12:17:02 +0000 (GMT) From: Harsh Prateek Bora To: qemu-devel@nongnu.org Cc: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [PULL 01/32] ppc/spapr: remove deprecated machine pseries-3.0 Date: Thu, 23 Oct 2025 17:46:20 +0530 Message-ID: <20251023121653.3686015-2-harshpb@linux.ibm.com> X-Mailer: git-send-email 2.43.5 In-Reply-To: <20251023121653.3686015-1-harshpb@linux.ibm.com> References: <20251023121653.3686015-1-harshpb@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: FSiBvD0Z8NvbiIkLKZE0p06Ajyzwfoze X-Proofpoint-GUID: FSiBvD0Z8NvbiIkLKZE0p06Ajyzwfoze X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMDE4MDAyMiBTYWx0ZWRfXxyTZavEkrZ/b J3tRcahY3SgACEC9Luztaiz9KQ9j45+X0alxGj34LAYb5aG+awGXBC0eKJdgg+B6EU9P4FO0el/ CLtmsKPQjMPmsRzSm03ijFgbtj8J4c0tKj8sZi1RIX2xksa/W7CffStvaHRL30xYZOID2uUcaVG MV679Xfwq2Tjc/287OWahs4/9r4KY9kUT9nrUDaETn97irIxNS6qtQlzPMXBp31cYfPQcD+77A6 mnq8VINVkGeVKskosL7Mfi1fU+ZpQE7zbLEfh+y8QremlF3DwD+7HdfkxYCv95BZZNoHHZP9KC4 MY0RHTK4GpCGYrIIqvDGOOwAFTfZFw8ZJCiZNTw8iN80edhh8+NeIC2UYNkRTHq7O6QFOWzvcZU pExLxtQa1QjVLKIkmCGCPNyJJSDgZA== X-Authority-Analysis: v=2.4 cv=IJYPywvG c=1 sm=1 tr=0 ts=68fa1cd0 cx=c_pps a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17 a=IkcTkHD0fZMA:10 a=x6icFKpwvdMA:10 a=f7IdgyKtn90A:10 a=VkNPw1HP01LnGYTKEx00:22 a=VwQbUJbxAAAA:8 a=KKAkSRfTAAAA:8 a=aow-egSQAAAA:8 a=20KFwNOVAAAA:8 a=VnNF1IyMAAAA:8 a=GhfPg2sD2UaM3MgJKtQA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=cvBusfyB2V15izCimMoJ:22 a=gFNbaldVC-z-bsjSTzMo:22 a=oH34dK2VZjykjzsv8OSz:22 a=pHzHmUro8NiASowvMSCR:22 a=n87TN5wuljxrRezIQYnT:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-10-22_08,2025-10-22_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 lowpriorityscore=0 clxscore=1015 suspectscore=0 spamscore=0 bulkscore=0 adultscore=0 impostorscore=0 malwarescore=0 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2510020000 definitions=main-2510180022 Received-SPF: pass client-ip=148.163.156.1; envelope-from=harshpb@linux.ibm.com; helo=mx0a-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_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, 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 pseries-3.0 had been deprecated and due for removal now as per policy. Also remove legacy irq support which existed for pre pseries-3.1 machines. Suggested-by: Cédric Le Goater Reviewed-by: Cédric Le Goater Signed-off-by: Philippe Mathieu-Daudé Link: https://lore.kernel.org/qemu-devel/20251021084346.73671-2-philmd@linaro.org Signed-off-by: Harsh Prateek Bora --- include/hw/ppc/spapr.h | 1 - include/hw/ppc/spapr_irq.h | 1 - hw/ppc/spapr.c | 27 +-------------------------- hw/ppc/spapr_events.c | 8 -------- hw/ppc/spapr_irq.c | 16 +--------------- hw/ppc/spapr_pci.c | 32 ++++---------------------------- hw/ppc/spapr_vio.c | 9 --------- 7 files changed, 6 insertions(+), 88 deletions(-) diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h index 39bd5bd5ed..0c1e5132de 100644 --- a/include/hw/ppc/spapr.h +++ b/include/hw/ppc/spapr.h @@ -145,7 +145,6 @@ struct SpaprMachineClass { /*< public >*/ bool dr_phb_enabled; /* enable dynamic-reconfig/hotplug of PHBs */ bool update_dt_enabled; /* enable KVMPPC_H_UPDATE_DT */ - bool legacy_irq_allocation; uint32_t nr_xirqs; bool broken_host_serial_model; /* present real host info to the guest */ bool pre_4_1_migration; /* don't migrate hpt-max-page-size */ diff --git a/include/hw/ppc/spapr_irq.h b/include/hw/ppc/spapr_irq.h index cb9a85f657..5ddd1107c3 100644 --- a/include/hw/ppc/spapr_irq.h +++ b/include/hw/ppc/spapr_irq.h @@ -100,7 +100,6 @@ typedef struct SpaprIrq { } SpaprIrq; extern SpaprIrq spapr_irq_xics; -extern SpaprIrq spapr_irq_xics_legacy; extern SpaprIrq spapr_irq_xive; extern SpaprIrq spapr_irq_dual; diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index e0a2e5a984..3728ae2a5e 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -3347,9 +3347,7 @@ static char *spapr_get_ic_mode(Object *obj, Error **errp) { SpaprMachineState *spapr = SPAPR_MACHINE(obj); - if (spapr->irq == &spapr_irq_xics_legacy) { - return g_strdup("legacy"); - } else if (spapr->irq == &spapr_irq_xics) { + if (spapr->irq == &spapr_irq_xics) { return g_strdup("xics"); } else if (spapr->irq == &spapr_irq_xive) { return g_strdup("xive"); @@ -3363,11 +3361,6 @@ static void spapr_set_ic_mode(Object *obj, const char *value, Error **errp) { SpaprMachineState *spapr = SPAPR_MACHINE(obj); - if (SPAPR_MACHINE_GET_CLASS(spapr)->legacy_irq_allocation) { - error_setg(errp, "This machine only uses the legacy XICS backend, don't pass ic-mode"); - return; - } - /* The legacy IRQ backend can not be set */ if (strcmp(value, "xics") == 0) { spapr->irq = &spapr_irq_xics; @@ -5062,24 +5055,6 @@ static void spapr_machine_3_1_class_options(MachineClass *mc) DEFINE_SPAPR_MACHINE(3, 1); -/* - * pseries-3.0 - */ - -static void spapr_machine_3_0_class_options(MachineClass *mc) -{ - SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc); - - spapr_machine_3_1_class_options(mc); - compat_props_add(mc->compat_props, hw_compat_3_0, hw_compat_3_0_len); - - smc->legacy_irq_allocation = true; - smc->nr_xirqs = 0x400; - smc->irq = &spapr_irq_xics_legacy; -} - -DEFINE_SPAPR_MACHINE(3, 0); - static void spapr_machine_register_types(void) { type_register_static(&spapr_machine_info); diff --git a/hw/ppc/spapr_events.c b/hw/ppc/spapr_events.c index 832b0212f3..548a190ce8 100644 --- a/hw/ppc/spapr_events.c +++ b/hw/ppc/spapr_events.c @@ -1043,10 +1043,6 @@ void spapr_events_init(SpaprMachineState *spapr) { int epow_irq = SPAPR_IRQ_EPOW; - if (SPAPR_MACHINE_GET_CLASS(spapr)->legacy_irq_allocation) { - epow_irq = spapr_irq_findone(spapr, &error_fatal); - } - spapr_irq_claim(spapr, epow_irq, false, &error_fatal); QTAILQ_INIT(&spapr->pending_events); @@ -1067,10 +1063,6 @@ void spapr_events_init(SpaprMachineState *spapr) if (spapr->use_hotplug_event_source) { int hp_irq = SPAPR_IRQ_HOTPLUG; - if (SPAPR_MACHINE_GET_CLASS(spapr)->legacy_irq_allocation) { - hp_irq = spapr_irq_findone(spapr, &error_fatal); - } - spapr_irq_claim(spapr, hp_irq, false, &error_fatal); spapr_event_sources_register(spapr->event_sources, EVENT_CLASS_HOT_PLUG, diff --git a/hw/ppc/spapr_irq.c b/hw/ppc/spapr_irq.c index d6d368dd08..317d57a380 100644 --- a/hw/ppc/spapr_irq.c +++ b/hw/ppc/spapr_irq.c @@ -33,11 +33,6 @@ static const TypeInfo spapr_intc_info = { static void spapr_irq_msi_init(SpaprMachineState *spapr) { - if (SPAPR_MACHINE_GET_CLASS(spapr)->legacy_irq_allocation) { - /* Legacy mode doesn't use this allocator */ - return; - } - spapr->irq_map_nr = spapr_irq_nr_msis(spapr); spapr->irq_map = bitmap_new(spapr->irq_map_nr); } @@ -286,11 +281,7 @@ uint32_t spapr_irq_nr_msis(SpaprMachineState *spapr) { SpaprMachineClass *smc = SPAPR_MACHINE_GET_CLASS(spapr); - if (smc->legacy_irq_allocation) { - return smc->nr_xirqs; - } else { - return SPAPR_XIRQ_BASE + smc->nr_xirqs - SPAPR_IRQ_MSI; - } + return SPAPR_XIRQ_BASE + smc->nr_xirqs - SPAPR_IRQ_MSI; } void spapr_irq_init(SpaprMachineState *spapr, Error **errp) @@ -588,11 +579,6 @@ int spapr_irq_find(SpaprMachineState *spapr, int num, bool align, Error **errp) return first + ics->offset; } -SpaprIrq spapr_irq_xics_legacy = { - .xics = true, - .xive = false, -}; - static void spapr_irq_register_types(void) { type_register_static(&spapr_intc_info); diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c index f9095552e8..bdec8f0728 100644 --- a/hw/ppc/spapr_pci.c +++ b/hw/ppc/spapr_pci.c @@ -268,7 +268,6 @@ static void rtas_ibm_change_msi(PowerPCCPU *cpu, SpaprMachineState *spapr, target_ulong args, uint32_t nret, target_ulong rets) { - SpaprMachineClass *smc = SPAPR_MACHINE_GET_CLASS(spapr); uint32_t config_addr = rtas_ld(args, 0); uint64_t buid = rtas_ldq(args, 1); unsigned int func = rtas_ld(args, 3); @@ -373,13 +372,8 @@ static void rtas_ibm_change_msi(PowerPCCPU *cpu, SpaprMachineState *spapr, } /* Allocate MSIs */ - if (smc->legacy_irq_allocation) { - irq = spapr_irq_find(spapr, req_num, ret_intr_type == RTAS_TYPE_MSI, - &err); - } else { - irq = spapr_irq_msi_alloc(spapr, req_num, - ret_intr_type == RTAS_TYPE_MSI, &err); - } + irq = spapr_irq_msi_alloc(spapr, req_num, + ret_intr_type == RTAS_TYPE_MSI, &err); if (err) { error_reportf_err(err, "Can't allocate MSIs for device %x: ", config_addr); @@ -393,9 +387,7 @@ static void rtas_ibm_change_msi(PowerPCCPU *cpu, SpaprMachineState *spapr, if (i) { spapr_irq_free(spapr, irq, i); } - if (!smc->legacy_irq_allocation) { - spapr_irq_msi_free(spapr, irq, req_num); - } + spapr_irq_msi_free(spapr, irq, req_num); error_reportf_err(err, "Can't allocate MSIs for device %x: ", config_addr); rtas_st(rets, 0, RTAS_OUT_HW_ERROR); @@ -1789,12 +1781,9 @@ static void spapr_phb_unrealize(DeviceState *dev) static void spapr_phb_destroy_msi(gpointer opaque) { SpaprMachineState *spapr = SPAPR_MACHINE(qdev_get_machine()); - SpaprMachineClass *smc = SPAPR_MACHINE_GET_CLASS(spapr); SpaprPciMsi *msi = opaque; - if (!smc->legacy_irq_allocation) { - spapr_irq_msi_free(spapr, msi->first_irq, msi->num); - } + spapr_irq_msi_free(spapr, msi->first_irq, msi->num); spapr_irq_free(spapr, msi->first_irq, msi->num); g_free(msi); } @@ -1808,7 +1797,6 @@ static void spapr_phb_realize(DeviceState *dev, Error **errp) SpaprMachineState *spapr = (SpaprMachineState *) object_dynamic_cast(qdev_get_machine(), TYPE_SPAPR_MACHINE); - SpaprMachineClass *smc = spapr ? SPAPR_MACHINE_GET_CLASS(spapr) : NULL; SysBusDevice *sbd = SYS_BUS_DEVICE(dev); SpaprPhbState *sphb = SPAPR_PCI_HOST_BRIDGE(sbd); PCIHostState *phb = PCI_HOST_BRIDGE(sbd); @@ -1956,18 +1944,6 @@ static void spapr_phb_realize(DeviceState *dev, Error **errp) for (i = 0; i < PCI_NUM_PINS; i++) { int irq = SPAPR_IRQ_PCI_LSI + sphb->index * PCI_NUM_PINS + i; - if (smc->legacy_irq_allocation) { - irq = spapr_irq_findone(spapr, errp); - if (irq < 0) { - error_prepend(errp, "can't allocate LSIs: "); - /* - * Older machines will never support PHB hotplug, ie, this is an - * init only path and QEMU will terminate. No need to rollback. - */ - return; - } - } - if (spapr_irq_claim(spapr, irq, true, errp) < 0) { error_prepend(errp, "can't allocate LSIs: "); goto unrealize; diff --git a/hw/ppc/spapr_vio.c b/hw/ppc/spapr_vio.c index 7759436a4f..c21a2a3274 100644 --- a/hw/ppc/spapr_vio.c +++ b/hw/ppc/spapr_vio.c @@ -507,15 +507,6 @@ static void spapr_vio_busdev_realize(DeviceState *qdev, Error **errp) dev->irq = spapr_vio_reg_to_irq(dev->reg); - if (SPAPR_MACHINE_GET_CLASS(spapr)->legacy_irq_allocation) { - int irq = spapr_irq_findone(spapr, errp); - - if (irq < 0) { - return; - } - dev->irq = irq; - } - if (spapr_irq_claim(spapr, dev->irq, false, errp) < 0) { return; } -- 2.43.5