[PATCH v4 00/13] ppc/spapr: remove deprecated machines specific code

[PATCH v4 00/13] ppc/spapr: remove deprecated machines specific code

[Harsh Prateek Bora]

As per Qemu's deprecation policy [1], and the legacy pseries machines
being marked as deprecated in earlier commits, this patchset aims at
removing the respective code for machines which are now deprecated.

[1] https://www.qemu.org/docs/master/about/deprecated.html

v4: Removed hw_compat_2_{1,2,3}[_len] in patches 1,2,3 (Philippe)
    Removed DEFINE_SPAPR_MACHINE_TAGGED in patch 12 (Cedric)
    Updated version_id to 2 for vmstate_slb in patch 13 (Cedric)
    Dropped removal of pseries-3.0 patch 14 (Cedric)
    Added R-bys from Cedric in patch 3, 4 and 5
    Patches awaiting R-bys: 12, 13.
v3: Addressed review comments from Cedric on v2 patchset
    Removed some more pre-2.10 migration hacks in patch 9/14
    Removed pseries-2.12 and pseries-3.10 also as due for removal.

v2: <20241001092910.1030913-1-harshpb@linux.ibm.com>
v1: <20240917060300.943496-1-harshpb@linux.ibm.com>

Harsh Prateek Bora (13):
  ppc/spapr: remove deprecated machine pseries-2.1
  ppc/spapr: remove deprecated machine pseries-2.2
  ppc/spapr: remove deprecated machine pseries-2.3
  ppc/spapr: remove deprecated machine pseries-2.4
  ppc/spapr: remove deprecated machine pseries-2.5
  ppc/spapr: remove deprecated machine pseries-2.6
  ppc/spapr: remove deprecated machine pseries-2.7
  ppc/spapr: remove deprecated machine pseries-2.8
  ppc/spapr: remove deprecated machine pseries-2.9
  ppc/spapr: remove deprecated machine pseries-2.10
  ppc/spapr: remove deprecated machine pseries-2.11
  ppc/spapr: remove deprecated machine pseries-2.12-sxxm
  ppc/spapr: remove deprecated machine pseries-2.12

 docs/about/deprecated.rst       |   8 -
 include/hw/boards.h             |   9 -
 include/hw/pci-host/spapr.h     |   5 -
 include/hw/ppc/spapr.h          |   3 -
 include/hw/ppc/spapr_cpu_core.h |   1 -
 target/ppc/cpu.h                |  10 -
 hw/core/machine.c               |  27 ---
 hw/intc/xics.c                  |  16 --
 hw/ppc/spapr.c                  | 387 +-------------------------------
 hw/ppc/spapr_cpu_core.c         |  12 +-
 hw/ppc/spapr_pci.c              |  92 +-------
 migration/savevm.c              |  19 --
 target/ppc/cpu_init.c           |   6 +-
 target/ppc/machine.c            |  72 +-----
 14 files changed, 18 insertions(+), 649 deletions(-)

-- 
2.45.2

[PATCH v4 01/13] ppc/spapr: remove deprecated machine pseries-2.1

[Harsh Prateek Bora]

Commit 1392617d3576 intended to tag pseries-2.1 - 2.11 machines as
deprecated with reasons mentioned in its commit log.
Removing pseries-2.1 specific code with this patch for now.

Suggested-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
---
 include/hw/boards.h |  3 ---
 hw/core/machine.c   | 11 -----------
 hw/ppc/spapr.c      | 11 -----------
 3 files changed, 25 deletions(-)

diff --git a/include/hw/boards.h b/include/hw/boards.h
index 5966069baa..44d19e1ffc 100644
--- a/include/hw/boards.h
+++ b/include/hw/boards.h
@@ -828,7 +828,4 @@ extern const size_t hw_compat_2_3_len;
 extern GlobalProperty hw_compat_2_2[];
 extern const size_t hw_compat_2_2_len;
 
-extern GlobalProperty hw_compat_2_1[];
-extern const size_t hw_compat_2_1_len;
-
 #endif
diff --git a/hw/core/machine.c b/hw/core/machine.c
index adaba17eba..a41d1dbe26 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -297,17 +297,6 @@ const size_t hw_compat_2_3_len = G_N_ELEMENTS(hw_compat_2_3);
 GlobalProperty hw_compat_2_2[] = {};
 const size_t hw_compat_2_2_len = G_N_ELEMENTS(hw_compat_2_2);
 
-GlobalProperty hw_compat_2_1[] = {
-    { "intel-hda", "old_msi_addr", "on" },
-    { "VGA", "qemu-extended-regs", "off" },
-    { "secondary-vga", "qemu-extended-regs", "off" },
-    { "virtio-scsi-pci", "any_layout", "off" },
-    { "usb-mouse", "usb_version", "1" },
-    { "usb-kbd", "usb_version", "1" },
-    { "virtio-pci", "virtio-pci-bus-master-bug-migration", "on" },
-};
-const size_t hw_compat_2_1_len = G_N_ELEMENTS(hw_compat_2_1);
-
 MachineState *current_machine;
 
 static char *machine_get_kernel(Object *obj, Error **errp)
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 2c10a70a48..e9518ff8b3 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -5381,17 +5381,6 @@ static void spapr_machine_2_2_class_options(MachineClass *mc)
 }
 DEFINE_SPAPR_MACHINE(2, 2);
 
-/*
- * pseries-2.1
- */
-
-static void spapr_machine_2_1_class_options(MachineClass *mc)
-{
-    spapr_machine_2_2_class_options(mc);
-    compat_props_add(mc->compat_props, hw_compat_2_1, hw_compat_2_1_len);
-}
-DEFINE_SPAPR_MACHINE(2, 1);
-
 static void spapr_machine_register_types(void)
 {
     type_register_static(&spapr_machine_info);
-- 
2.45.2

[PATCH v4 02/13] ppc/spapr: remove deprecated machine pseries-2.2

[Harsh Prateek Bora]

Commit 1392617d3576 intended to tag pseries-2.1 - 2.11 machines as
deprecated with reasons mentioned in its commit log.
Removing pseries-2.2 specific code with this patch for now.

Suggested-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
---
 include/hw/boards.h |  3 ---
 hw/core/machine.c   |  3 ---
 hw/ppc/spapr.c      | 17 -----------------
 3 files changed, 23 deletions(-)

diff --git a/include/hw/boards.h b/include/hw/boards.h
index 44d19e1ffc..7e849bb30d 100644
--- a/include/hw/boards.h
+++ b/include/hw/boards.h
@@ -825,7 +825,4 @@ extern const size_t hw_compat_2_4_len;
 extern GlobalProperty hw_compat_2_3[];
 extern const size_t hw_compat_2_3_len;
 
-extern GlobalProperty hw_compat_2_2[];
-extern const size_t hw_compat_2_2_len;
-
 #endif
diff --git a/hw/core/machine.c b/hw/core/machine.c
index a41d1dbe26..2bbfcd1ede 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -294,9 +294,6 @@ GlobalProperty hw_compat_2_3[] = {
 };
 const size_t hw_compat_2_3_len = G_N_ELEMENTS(hw_compat_2_3);
 
-GlobalProperty hw_compat_2_2[] = {};
-const size_t hw_compat_2_2_len = G_N_ELEMENTS(hw_compat_2_2);
-
 MachineState *current_machine;
 
 static char *machine_get_kernel(Object *obj, Error **errp)
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index e9518ff8b3..34d655d0b3 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -5364,23 +5364,6 @@ static void spapr_machine_2_3_class_options(MachineClass *mc)
 }
 DEFINE_SPAPR_MACHINE(2, 3);
 
-/*
- * pseries-2.2
- */
-
-static void spapr_machine_2_2_class_options(MachineClass *mc)
-{
-    static GlobalProperty compat[] = {
-        { TYPE_SPAPR_PCI_HOST_BRIDGE, "mem_win_size", "0x20000000" },
-    };
-
-    spapr_machine_2_3_class_options(mc);
-    compat_props_add(mc->compat_props, hw_compat_2_2, hw_compat_2_2_len);
-    compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
-    mc->default_machine_opts = "modern-hotplug-events=off,suppress-vmdesc=on";
-}
-DEFINE_SPAPR_MACHINE(2, 2);
-
 static void spapr_machine_register_types(void)
 {
     type_register_static(&spapr_machine_info);
-- 
2.45.2

[PATCH v4 03/13] ppc/spapr: remove deprecated machine pseries-2.3

[Harsh Prateek Bora]

Commit 1392617d3576 intended to tag pseries-2.1 - 2.11 machines as
deprecated with reasons mentioned in its commit log.
Removing pseries-2.3 specific code with this patch for now.

While at it, also remove the dynamic-reconfiguration option which was
introduced to disable it by default for legacy machines until pseries-2.3.

Suggested-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
---
 include/hw/boards.h         |  3 ---
 include/hw/pci-host/spapr.h |  1 -
 hw/core/machine.c           | 13 -------------
 hw/ppc/spapr.c              | 15 ---------------
 hw/ppc/spapr_pci.c          | 35 -----------------------------------
 5 files changed, 67 deletions(-)

diff --git a/include/hw/boards.h b/include/hw/boards.h
index 7e849bb30d..eea592b720 100644
--- a/include/hw/boards.h
+++ b/include/hw/boards.h
@@ -822,7 +822,4 @@ extern const size_t hw_compat_2_5_len;
 extern GlobalProperty hw_compat_2_4[];
 extern const size_t hw_compat_2_4_len;
 
-extern GlobalProperty hw_compat_2_3[];
-extern const size_t hw_compat_2_3_len;
-
 #endif
diff --git a/include/hw/pci-host/spapr.h b/include/hw/pci-host/spapr.h
index 3778aac27b..79187e80fd 100644
--- a/include/hw/pci-host/spapr.h
+++ b/include/hw/pci-host/spapr.h
@@ -53,7 +53,6 @@ struct SpaprPhbState {
     uint32_t index;
     uint64_t buid;
     char *dtbusname;
-    bool dr_enabled;
 
     MemoryRegion memspace, iospace;
     hwaddr mem_win_addr, mem_win_size, mem64_win_addr, mem64_win_size;
diff --git a/hw/core/machine.c b/hw/core/machine.c
index 2bbfcd1ede..0f10b4f992 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -281,19 +281,6 @@ GlobalProperty hw_compat_2_4[] = {
 };
 const size_t hw_compat_2_4_len = G_N_ELEMENTS(hw_compat_2_4);
 
-GlobalProperty hw_compat_2_3[] = {
-    { "virtio-blk-pci", "any_layout", "off" },
-    { "virtio-balloon-pci", "any_layout", "off" },
-    { "virtio-serial-pci", "any_layout", "off" },
-    { "virtio-9p-pci", "any_layout", "off" },
-    { "virtio-rng-pci", "any_layout", "off" },
-    { TYPE_PCI_DEVICE, "x-pcie-lnksta-dllla", "off" },
-    { "migration", "send-configuration", "off" },
-    { "migration", "send-section-footer", "off" },
-    { "migration", "store-global-state", "off" },
-};
-const size_t hw_compat_2_3_len = G_N_ELEMENTS(hw_compat_2_3);
-
 MachineState *current_machine;
 
 static char *machine_get_kernel(Object *obj, Error **errp)
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 34d655d0b3..599a59910c 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -5349,21 +5349,6 @@ static void spapr_machine_2_4_class_options(MachineClass *mc)
 
 DEFINE_SPAPR_MACHINE(2, 4);
 
-/*
- * pseries-2.3
- */
-
-static void spapr_machine_2_3_class_options(MachineClass *mc)
-{
-    static GlobalProperty compat[] = {
-        { "spapr-pci-host-bridge", "dynamic-reconfiguration", "off" },
-    };
-    spapr_machine_2_4_class_options(mc);
-    compat_props_add(mc->compat_props, hw_compat_2_3, hw_compat_2_3_len);
-    compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
-}
-DEFINE_SPAPR_MACHINE(2, 3);
-
 static void spapr_machine_register_types(void)
 {
     type_register_static(&spapr_machine_info);
diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c
index 5c0024bef9..8f1964ce52 100644
--- a/hw/ppc/spapr_pci.c
+++ b/hw/ppc/spapr_pci.c
@@ -1237,10 +1237,6 @@ static void add_drcs(SpaprPhbState *phb, PCIBus *bus)
     int i;
     uint8_t chassis;
 
-    if (!phb->dr_enabled) {
-        return;
-    }
-
     chassis = chassis_from_bus(bus);
 
     if (pci_bus_is_root(bus)) {
@@ -1260,10 +1256,6 @@ static void remove_drcs(SpaprPhbState *phb, PCIBus *bus)
     int i;
     uint8_t chassis;
 
-    if (!phb->dr_enabled) {
-        return;
-    }
-
     chassis = chassis_from_bus(bus);
 
     for (i = PCI_SLOT_MAX * PCI_FUNC_MAX - 1; i >= 0; i--) {
@@ -1548,17 +1540,6 @@ static void spapr_pci_pre_plug(HotplugHandler *plug_handler,
     PCIBus *bus = PCI_BUS(qdev_get_parent_bus(DEVICE(pdev)));
     uint32_t slotnr = PCI_SLOT(pdev->devfn);
 
-    if (!phb->dr_enabled) {
-        /* if this is a hotplug operation initiated by the user
-         * we need to let them know it's not enabled
-         */
-        if (plugged_dev->hotplugged) {
-            error_setg(errp, "Bus '%s' does not support hotplugging",
-                       phb->parent_obj.bus->qbus.name);
-            return;
-        }
-    }
-
     if (IS_PCI_BRIDGE(plugged_dev)) {
         if (!bridge_has_valid_chassis_nr(OBJECT(plugged_dev), errp)) {
             return;
@@ -1591,14 +1572,6 @@ static void spapr_pci_plug(HotplugHandler *plug_handler,
     SpaprDrc *drc = drc_from_dev(phb, pdev);
     uint32_t slotnr = PCI_SLOT(pdev->devfn);
 
-    /*
-     * If DR is disabled we don't need to do anything in the case of
-     * hotplug or coldplug callbacks.
-     */
-    if (!phb->dr_enabled) {
-        return;
-    }
-
     g_assert(drc);
 
     if (IS_PCI_BRIDGE(plugged_dev)) {
@@ -1673,12 +1646,6 @@ static void spapr_pci_unplug_request(HotplugHandler *plug_handler,
     PCIDevice *pdev = PCI_DEVICE(plugged_dev);
     SpaprDrc *drc = drc_from_dev(phb, pdev);
 
-    if (!phb->dr_enabled) {
-        error_setg(errp, "Bus '%s' does not support hotplugging",
-                   phb->parent_obj.bus->qbus.name);
-        return;
-    }
-
     g_assert(drc);
     g_assert(drc->dev == plugged_dev);
 
@@ -2089,8 +2056,6 @@ static Property spapr_phb_properties[] = {
                        SPAPR_PCI_MEM64_WIN_SIZE),
     DEFINE_PROP_UINT64("io_win_size", SpaprPhbState, io_win_size,
                        SPAPR_PCI_IO_WIN_SIZE),
-    DEFINE_PROP_BOOL("dynamic-reconfiguration", SpaprPhbState, dr_enabled,
-                     true),
     /* Default DMA window is 0..1GB */
     DEFINE_PROP_UINT64("dma_win_addr", SpaprPhbState, dma_win_addr, 0),
     DEFINE_PROP_UINT64("dma_win_size", SpaprPhbState, dma_win_size, 0x40000000),
-- 
2.45.2

[PATCH v4 04/13] ppc/spapr: remove deprecated machine pseries-2.4

[Harsh Prateek Bora]

Commit 1392617d3576 intended to tag pseries-2.1 - 2.11 machines as
deprecated with reasons mentioned in its commit log.
Removing pseries-2.4 specific code with this patch for now.

While at it, also remove SpaprMachineClass::dr_lmb_enabled which is
now turned useless.

Suggested-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
---
 include/hw/ppc/spapr.h |  1 -
 hw/ppc/spapr.c         | 38 ++++----------------------------------
 2 files changed, 4 insertions(+), 35 deletions(-)

diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
index f6de3e9972..1821ef96c7 100644
--- a/include/hw/ppc/spapr.h
+++ b/include/hw/ppc/spapr.h
@@ -141,7 +141,6 @@ struct SpaprMachineClass {
     MachineClass parent_class;
 
     /*< public >*/
-    bool dr_lmb_enabled;       /* enable dynamic-reconfig/hotplug of LMBs */
     bool dr_phb_enabled;       /* enable dynamic-reconfig/hotplug of PHBs */
     bool update_dt_enabled;    /* enable KVMPPC_H_UPDATE_DT */
     bool use_ohci_by_default;  /* use USB-OHCI instead of XHCI */
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 599a59910c..4d7705c89f 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -682,7 +682,6 @@ static int spapr_dt_dynamic_reconfiguration_memory(SpaprMachineState *spapr,
 static int spapr_dt_memory(SpaprMachineState *spapr, void *fdt)
 {
     MachineState *machine = MACHINE(spapr);
-    SpaprMachineClass *smc = SPAPR_MACHINE_GET_CLASS(spapr);
     hwaddr mem_start, node_size;
     int i, nb_nodes = machine->numa_state->num_nodes;
     NodeInfo *nodes = machine->numa_state->nodes;
@@ -724,7 +723,6 @@ static int spapr_dt_memory(SpaprMachineState *spapr, void *fdt)
     if (spapr_ovec_test(spapr->ov5_cas, OV5_DRCONF_MEMORY)) {
         int ret;
 
-        g_assert(smc->dr_lmb_enabled);
         ret = spapr_dt_dynamic_reconfiguration_memory(spapr, fdt);
         if (ret) {
             return ret;
@@ -1307,9 +1305,7 @@ void *spapr_build_fdt(SpaprMachineState *spapr, bool reset, size_t space)
     spapr_dt_cpus(fdt, spapr);
 
     /* ibm,drc-indexes and friends */
-    if (smc->dr_lmb_enabled) {
-        root_drc_type_mask |= SPAPR_DR_CONNECTOR_TYPE_LMB;
-    }
+    root_drc_type_mask |= SPAPR_DR_CONNECTOR_TYPE_LMB;
     if (smc->dr_phb_enabled) {
         root_drc_type_mask |= SPAPR_DR_CONNECTOR_TYPE_PHB;
     }
@@ -2929,10 +2925,8 @@ static void spapr_machine_init(MachineState *machine)
     spapr->ov5 = spapr_ovec_new();
     spapr->ov5_cas = spapr_ovec_new();
 
-    if (smc->dr_lmb_enabled) {
-        spapr_ovec_set(spapr->ov5, OV5_DRCONF_MEMORY);
-        spapr_validate_node_memory(machine, &error_fatal);
-    }
+    spapr_ovec_set(spapr->ov5, OV5_DRCONF_MEMORY);
+    spapr_validate_node_memory(machine, &error_fatal);
 
     spapr_ovec_set(spapr->ov5, OV5_FORM1_AFFINITY);
 
@@ -3016,9 +3010,7 @@ static void spapr_machine_init(MachineState *machine)
         machine_memory_devices_init(machine, device_mem_base, device_mem_size);
     }
 
-    if (smc->dr_lmb_enabled) {
-        spapr_create_lmb_dr_connectors(spapr);
-    }
+    spapr_create_lmb_dr_connectors(spapr);
 
     if (mc->nvdimm_supported) {
         spapr_create_nvdimm_dr_connectors(spapr);
@@ -3662,7 +3654,6 @@ static void spapr_memory_plug(HotplugHandler *hotplug_dev, DeviceState *dev)
 static void spapr_memory_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
                                   Error **errp)
 {
-    const SpaprMachineClass *smc = SPAPR_MACHINE_GET_CLASS(hotplug_dev);
     SpaprMachineState *spapr = SPAPR_MACHINE(hotplug_dev);
     bool is_nvdimm = object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM);
     PCDIMMDevice *dimm = PC_DIMM(dev);
@@ -3671,11 +3662,6 @@ static void spapr_memory_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
     Object *memdev;
     hwaddr pagesize;
 
-    if (!smc->dr_lmb_enabled) {
-        error_setg(errp, "Memory hotplug not supported for this machine");
-        return;
-    }
-
     size = memory_device_get_region_size(MEMORY_DEVICE(dimm), &local_err);
     if (local_err) {
         error_propagate(errp, local_err);
@@ -4713,7 +4699,6 @@ static void spapr_machine_class_init(ObjectClass *oc, void *data)
     hc->unplug_request = spapr_machine_device_unplug_request;
     hc->unplug = spapr_machine_device_unplug;
 
-    smc->dr_lmb_enabled = true;
     smc->update_dt_enabled = true;
     mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("power10_v2.0");
     mc->has_hotpluggable_cpus = true;
@@ -5334,21 +5319,6 @@ static void spapr_machine_2_5_class_options(MachineClass *mc)
 
 DEFINE_SPAPR_MACHINE(2, 5);
 
-/*
- * pseries-2.4
- */
-
-static void spapr_machine_2_4_class_options(MachineClass *mc)
-{
-    SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
-
-    spapr_machine_2_5_class_options(mc);
-    smc->dr_lmb_enabled = false;
-    compat_props_add(mc->compat_props, hw_compat_2_4, hw_compat_2_4_len);
-}
-
-DEFINE_SPAPR_MACHINE(2, 4);
-
 static void spapr_machine_register_types(void)
 {
     type_register_static(&spapr_machine_info);
-- 
2.45.2

[PATCH v4 05/13] ppc/spapr: remove deprecated machine pseries-2.5

[Harsh Prateek Bora]

Commit 1392617d3576 intended to tag pseries-2.1 - 2.11 machines as
deprecated with reasons mentioned in its commit log.
Removing pseries-2.5 specific code with this patch for now.

Also drop sPAPRMachineClass::use_ohci_by_default which is now useless.

Suggested-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
---
 include/hw/ppc/spapr.h |  1 -
 hw/ppc/spapr.c         | 25 +------------------------
 2 files changed, 1 insertion(+), 25 deletions(-)

diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
index 1821ef96c7..6e9e62386c 100644
--- a/include/hw/ppc/spapr.h
+++ b/include/hw/ppc/spapr.h
@@ -143,7 +143,6 @@ struct SpaprMachineClass {
     /*< public >*/
     bool dr_phb_enabled;       /* enable dynamic-reconfig/hotplug of PHBs */
     bool update_dt_enabled;    /* enable KVMPPC_H_UPDATE_DT */
-    bool use_ohci_by_default;  /* use USB-OHCI instead of XHCI */
     bool pre_2_10_has_unused_icps;
     bool legacy_irq_allocation;
     uint32_t nr_xirqs;
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 4d7705c89f..f63843d107 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -3070,11 +3070,7 @@ static void spapr_machine_init(MachineState *machine)
     }
 
     if (machine->usb) {
-        if (smc->use_ohci_by_default) {
-            pci_create_simple(phb->bus, -1, "pci-ohci");
-        } else {
-            pci_create_simple(phb->bus, -1, "nec-usb-xhci");
-        }
+        pci_create_simple(phb->bus, -1, "nec-usb-xhci");
 
         if (has_vga) {
             USBBus *usb_bus;
@@ -5300,25 +5296,6 @@ static void spapr_machine_2_6_class_options(MachineClass *mc)
 
 DEFINE_SPAPR_MACHINE(2, 6);
 
-/*
- * pseries-2.5
- */
-
-static void spapr_machine_2_5_class_options(MachineClass *mc)
-{
-    SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
-    static GlobalProperty compat[] = {
-        { "spapr-vlan", "use-rx-buffer-pools", "off" },
-    };
-
-    spapr_machine_2_6_class_options(mc);
-    smc->use_ohci_by_default = true;
-    compat_props_add(mc->compat_props, hw_compat_2_5, hw_compat_2_5_len);
-    compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
-}
-
-DEFINE_SPAPR_MACHINE(2, 5);
-
 static void spapr_machine_register_types(void)
 {
     type_register_static(&spapr_machine_info);
-- 
2.45.2

[PATCH v4 06/13] ppc/spapr: remove deprecated machine pseries-2.6

[Harsh Prateek Bora]

Commit 1392617d3576 intended to tag pseries-2.1 - 2.11 machines as
deprecated with reasons mentioned in its commit log.
Removing pseries-2.6 specific code with this patch for now.

Suggested-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
---
 hw/ppc/spapr.c | 18 ------------------
 1 file changed, 18 deletions(-)

diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index f63843d107..a9c988b8f6 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -5278,24 +5278,6 @@ static void spapr_machine_2_7_class_options(MachineClass *mc)
 
 DEFINE_SPAPR_MACHINE(2, 7);
 
-/*
- * pseries-2.6
- */
-
-static void spapr_machine_2_6_class_options(MachineClass *mc)
-{
-    static GlobalProperty compat[] = {
-        { TYPE_SPAPR_PCI_HOST_BRIDGE, "ddw", "off" },
-    };
-
-    spapr_machine_2_7_class_options(mc);
-    mc->has_hotpluggable_cpus = false;
-    compat_props_add(mc->compat_props, hw_compat_2_6, hw_compat_2_6_len);
-    compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
-}
-
-DEFINE_SPAPR_MACHINE(2, 6);
-
 static void spapr_machine_register_types(void)
 {
     type_register_static(&spapr_machine_info);
-- 
2.45.2

[PATCH v4 07/13] ppc/spapr: remove deprecated machine pseries-2.7

[Harsh Prateek Bora]

Commit 1392617d3576 intended to tag pseries-2.1 - 2.11 machines as
deprecated with reasons mentioned in its commit log.
Removing pseries-2.7 specific code with this patch for now.

While at it, also remove pre-2.8-migration and pci/mmio hacks introduced
for backward compatibility.

Suggested-by: Cédric Le Goater <clg@kaod.org>
Acked-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
---
 include/hw/pci-host/spapr.h |  4 --
 target/ppc/cpu.h            |  5 ---
 hw/ppc/spapr.c              | 75 -------------------------------------
 hw/ppc/spapr_pci.c          | 57 ++++------------------------
 target/ppc/cpu_init.c       |  1 -
 target/ppc/machine.c        | 52 -------------------------
 6 files changed, 7 insertions(+), 187 deletions(-)

diff --git a/include/hw/pci-host/spapr.h b/include/hw/pci-host/spapr.h
index 79187e80fd..0db87f1281 100644
--- a/include/hw/pci-host/spapr.h
+++ b/include/hw/pci-host/spapr.h
@@ -83,10 +83,6 @@ struct SpaprPhbState {
     bool pcie_ecs; /* Allow access to PCIe extended config space? */
 
     /* Fields for migration compatibility hacks */
-    bool pre_2_8_migration;
-    uint32_t mig_liobn;
-    hwaddr mig_mem_win_addr, mig_mem_win_size;
-    hwaddr mig_io_win_addr, mig_io_win_size;
     bool pre_5_1_assoc;
 };
 
diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h
index 321ed2da75..cab4a46fc1 100644
--- a/target/ppc/cpu.h
+++ b/target/ppc/cpu.h
@@ -1456,11 +1456,6 @@ struct ArchCPU {
     opc_handler_t *opcodes[PPC_CPU_OPCODES_LEN];
 
     /* Fields related to migration compatibility hacks */
-    bool pre_2_8_migration;
-    target_ulong mig_msr_mask;
-    uint64_t mig_insns_flags;
-    uint64_t mig_insns_flags2;
-    uint32_t mig_nb_BATs;
     bool pre_2_10_migration;
     bool pre_3_0_migration;
     int32_t mig_slb_nr;
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index a9c988b8f6..c89ab89b97 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -5203,81 +5203,6 @@ static void spapr_machine_2_8_class_options(MachineClass *mc)
 
 DEFINE_SPAPR_MACHINE(2, 8);
 
-/*
- * pseries-2.7
- */
-
-static bool phb_placement_2_7(SpaprMachineState *spapr, uint32_t index,
-                              uint64_t *buid, hwaddr *pio,
-                              hwaddr *mmio32, hwaddr *mmio64,
-                              unsigned n_dma, uint32_t *liobns, Error **errp)
-{
-    /* Legacy PHB placement for pseries-2.7 and earlier machine types */
-    const uint64_t base_buid = 0x800000020000000ULL;
-    const hwaddr phb_spacing = 0x1000000000ULL; /* 64 GiB */
-    const hwaddr mmio_offset = 0xa0000000; /* 2 GiB + 512 MiB */
-    const hwaddr pio_offset = 0x80000000; /* 2 GiB */
-    const uint32_t max_index = 255;
-    const hwaddr phb0_alignment = 0x10000000000ULL; /* 1 TiB */
-
-    uint64_t ram_top = MACHINE(spapr)->ram_size;
-    hwaddr phb0_base, phb_base;
-    int i;
-
-    /* Do we have device memory? */
-    if (MACHINE(spapr)->device_memory) {
-        /* Can't just use maxram_size, because there may be an
-         * alignment gap between normal and device memory regions
-         */
-        ram_top = MACHINE(spapr)->device_memory->base +
-            memory_region_size(&MACHINE(spapr)->device_memory->mr);
-    }
-
-    phb0_base = QEMU_ALIGN_UP(ram_top, phb0_alignment);
-
-    if (index > max_index) {
-        error_setg(errp, "\"index\" for PAPR PHB is too large (max %u)",
-                   max_index);
-        return false;
-    }
-
-    *buid = base_buid + index;
-    for (i = 0; i < n_dma; ++i) {
-        liobns[i] = SPAPR_PCI_LIOBN(index, i);
-    }
-
-    phb_base = phb0_base + index * phb_spacing;
-    *pio = phb_base + pio_offset;
-    *mmio32 = phb_base + mmio_offset;
-    /*
-     * We don't set the 64-bit MMIO window, relying on the PHB's
-     * fallback behaviour of automatically splitting a large "32-bit"
-     * window into contiguous 32-bit and 64-bit windows
-     */
-
-    return true;
-}
-
-static void spapr_machine_2_7_class_options(MachineClass *mc)
-{
-    SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
-    static GlobalProperty compat[] = {
-        { TYPE_SPAPR_PCI_HOST_BRIDGE, "mem_win_size", "0xf80000000", },
-        { TYPE_SPAPR_PCI_HOST_BRIDGE, "mem64_win_size", "0", },
-        { TYPE_POWERPC_CPU, "pre-2.8-migration", "on", },
-        { TYPE_SPAPR_PCI_HOST_BRIDGE, "pre-2.8-migration", "on", },
-    };
-
-    spapr_machine_2_8_class_options(mc);
-    mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("power7_v2.3");
-    mc->default_machine_opts = "modern-hotplug-events=off";
-    compat_props_add(mc->compat_props, hw_compat_2_7, hw_compat_2_7_len);
-    compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
-    smc->phb_placement = phb_placement_2_7;
-}
-
-DEFINE_SPAPR_MACHINE(2, 7);
-
 static void spapr_machine_register_types(void)
 {
     type_register_static(&spapr_machine_info);
diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c
index 8f1964ce52..7e24084673 100644
--- a/hw/ppc/spapr_pci.c
+++ b/hw/ppc/spapr_pci.c
@@ -1814,30 +1814,15 @@ static void spapr_phb_realize(DeviceState *dev, Error **errp)
 
     assert(sphb->index != (uint32_t)-1); /* checked in spapr_phb_pre_plug() */
 
-    if (sphb->mem64_win_size != 0) {
-        if (sphb->mem_win_size > SPAPR_PCI_MEM32_WIN_SIZE) {
-            error_setg(errp, "32-bit memory window of size 0x%"HWADDR_PRIx
-                       " (max 2 GiB)", sphb->mem_win_size);
-            return;
-        }
-
-        /* 64-bit window defaults to identity mapping */
-        sphb->mem64_win_pciaddr = sphb->mem64_win_addr;
-    } else if (sphb->mem_win_size > SPAPR_PCI_MEM32_WIN_SIZE) {
-        /*
-         * For compatibility with old configuration, if no 64-bit MMIO
-         * window is specified, but the ordinary (32-bit) memory
-         * window is specified as > 2GiB, we treat it as a 2GiB 32-bit
-         * window, with a 64-bit MMIO window following on immediately
-         * afterwards
-         */
-        sphb->mem64_win_size = sphb->mem_win_size - SPAPR_PCI_MEM32_WIN_SIZE;
-        sphb->mem64_win_addr = sphb->mem_win_addr + SPAPR_PCI_MEM32_WIN_SIZE;
-        sphb->mem64_win_pciaddr =
-            SPAPR_PCI_MEM_WIN_BUS_OFFSET + SPAPR_PCI_MEM32_WIN_SIZE;
-        sphb->mem_win_size = SPAPR_PCI_MEM32_WIN_SIZE;
+    if (sphb->mem_win_size > SPAPR_PCI_MEM32_WIN_SIZE) {
+        error_setg(errp, "32-bit memory window of size 0x%"HWADDR_PRIx
+                   " (max 2 GiB)", sphb->mem_win_size);
+        return;
     }
 
+    /* 64-bit window defaults to identity mapping */
+    sphb->mem64_win_pciaddr = sphb->mem64_win_addr;
+
     if (spapr_pci_find_phb(spapr, sphb->buid)) {
         SpaprPhbState *s;
 
@@ -2066,8 +2051,6 @@ static Property spapr_phb_properties[] = {
                        (1ULL << 12) | (1ULL << 16)
                        | (1ULL << 21) | (1ULL << 24)),
     DEFINE_PROP_UINT32("numa_node", SpaprPhbState, numa_node, -1),
-    DEFINE_PROP_BOOL("pre-2.8-migration", SpaprPhbState,
-                     pre_2_8_migration, false),
     DEFINE_PROP_BOOL("pcie-extended-configuration-space", SpaprPhbState,
                      pcie_ecs, true),
     DEFINE_PROP_BOOL("pre-5.1-associativity", SpaprPhbState,
@@ -2105,20 +2088,6 @@ static int spapr_pci_pre_save(void *opaque)
     gpointer key, value;
     int i;
 
-    if (sphb->pre_2_8_migration) {
-        sphb->mig_liobn = sphb->dma_liobn[0];
-        sphb->mig_mem_win_addr = sphb->mem_win_addr;
-        sphb->mig_mem_win_size = sphb->mem_win_size;
-        sphb->mig_io_win_addr = sphb->io_win_addr;
-        sphb->mig_io_win_size = sphb->io_win_size;
-
-        if ((sphb->mem64_win_size != 0)
-            && (sphb->mem64_win_addr
-                == (sphb->mem_win_addr + sphb->mem_win_size))) {
-            sphb->mig_mem_win_size += sphb->mem64_win_size;
-        }
-    }
-
     g_free(sphb->msi_devs);
     sphb->msi_devs = NULL;
     sphb->msi_devs_num = g_hash_table_size(sphb->msi);
@@ -2165,13 +2134,6 @@ static int spapr_pci_post_load(void *opaque, int version_id)
     return 0;
 }
 
-static bool pre_2_8_migration(void *opaque, int version_id)
-{
-    SpaprPhbState *sphb = opaque;
-
-    return sphb->pre_2_8_migration;
-}
-
 static const VMStateDescription vmstate_spapr_pci = {
     .name = "spapr_pci",
     .version_id = 2,
@@ -2181,11 +2143,6 @@ static const VMStateDescription vmstate_spapr_pci = {
     .post_load = spapr_pci_post_load,
     .fields = (const VMStateField[]) {
         VMSTATE_UINT64_EQUAL(buid, SpaprPhbState, NULL),
-        VMSTATE_UINT32_TEST(mig_liobn, SpaprPhbState, pre_2_8_migration),
-        VMSTATE_UINT64_TEST(mig_mem_win_addr, SpaprPhbState, pre_2_8_migration),
-        VMSTATE_UINT64_TEST(mig_mem_win_size, SpaprPhbState, pre_2_8_migration),
-        VMSTATE_UINT64_TEST(mig_io_win_addr, SpaprPhbState, pre_2_8_migration),
-        VMSTATE_UINT64_TEST(mig_io_win_size, SpaprPhbState, pre_2_8_migration),
         VMSTATE_STRUCT_ARRAY(lsi_table, SpaprPhbState, PCI_NUM_PINS, 0,
                              vmstate_spapr_pci_lsi, SpaprPciLsi),
         VMSTATE_INT32(msi_devs_num, SpaprPhbState),
diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c
index 23881d09e9..7768392986 100644
--- a/target/ppc/cpu_init.c
+++ b/target/ppc/cpu_init.c
@@ -7452,7 +7452,6 @@ static void ppc_disas_set_info(CPUState *cs, disassemble_info *info)
 }
 
 static Property ppc_cpu_properties[] = {
-    DEFINE_PROP_BOOL("pre-2.8-migration", PowerPCCPU, pre_2_8_migration, false),
     DEFINE_PROP_BOOL("pre-2.10-migration", PowerPCCPU, pre_2_10_migration,
                      false),
     DEFINE_PROP_BOOL("pre-3.0-migration", PowerPCCPU, pre_3_0_migration,
diff --git a/target/ppc/machine.c b/target/ppc/machine.c
index d433fd45fc..21bed7c7c8 100644
--- a/target/ppc/machine.c
+++ b/target/ppc/machine.c
@@ -118,13 +118,6 @@ static const VMStateInfo vmstate_info_vsr = {
 #define VMSTATE_VSR_ARRAY(_f, _s, _n)                             \
     VMSTATE_VSR_ARRAY_V(_f, _s, _n, 0)
 
-static bool cpu_pre_2_8_migration(void *opaque, int version_id)
-{
-    PowerPCCPU *cpu = opaque;
-
-    return cpu->pre_2_8_migration;
-}
-
 #if defined(TARGET_PPC64)
 static bool cpu_pre_3_0_migration(void *opaque, int version_id)
 {
@@ -139,22 +132,6 @@ static int cpu_pre_save(void *opaque)
     PowerPCCPU *cpu = opaque;
     CPUPPCState *env = &cpu->env;
     int i;
-    uint64_t insns_compat_mask =
-        PPC_INSNS_BASE | PPC_ISEL | PPC_STRING | PPC_MFTB
-        | PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES
-        | PPC_FLOAT_FSQRT | PPC_FLOAT_FRSQRTE | PPC_FLOAT_FRSQRTES
-        | PPC_FLOAT_STFIWX | PPC_FLOAT_EXT
-        | PPC_CACHE | PPC_CACHE_ICBI | PPC_CACHE_DCBZ
-        | PPC_MEM_SYNC | PPC_MEM_EIEIO | PPC_MEM_TLBIE | PPC_MEM_TLBSYNC
-        | PPC_64B | PPC_64BX | PPC_ALTIVEC
-        | PPC_SEGMENT_64B | PPC_SLBI | PPC_POPCNTB | PPC_POPCNTWD;
-    uint64_t insns_compat_mask2 = PPC2_VSX | PPC2_VSX207 | PPC2_DFP | PPC2_DBRX
-        | PPC2_PERM_ISA206 | PPC2_DIVE_ISA206
-        | PPC2_ATOMIC_ISA206 | PPC2_FP_CVT_ISA206
-        | PPC2_FP_TST_ISA206 | PPC2_BCTAR_ISA207
-        | PPC2_LSQ_ISA207 | PPC2_ALTIVEC_207
-        | PPC2_ISA205 | PPC2_ISA207S | PPC2_FP_CVT_S64 | PPC2_TM
-        | PPC2_MEM_LWSYNC;
 
     env->spr[SPR_LR] = env->lr;
     env->spr[SPR_CTR] = env->ctr;
@@ -177,29 +154,6 @@ static int cpu_pre_save(void *opaque)
         env->spr[SPR_IBAT4U + 2 * i + 1] = env->IBAT[1][i + 4];
     }
 
-    /* Hacks for migration compatibility between 2.6, 2.7 & 2.8 */
-    if (cpu->pre_2_8_migration) {
-        /*
-         * Mask out bits that got added to msr_mask since the versions
-         * which stupidly included it in the migration stream.
-         */
-        target_ulong metamask = 0
-#if defined(TARGET_PPC64)
-            | (1ULL << MSR_TS0)
-            | (1ULL << MSR_TS1)
-#endif
-            ;
-        cpu->mig_msr_mask = env->msr_mask & ~metamask;
-        cpu->mig_insns_flags = env->insns_flags & insns_compat_mask;
-        /*
-         * CPU models supported by old machines all have
-         * PPC_MEM_TLBIE, so we set it unconditionally to allow
-         * backward migration from a POWER9 host to a POWER8 host.
-         */
-        cpu->mig_insns_flags |= PPC_MEM_TLBIE;
-        cpu->mig_insns_flags2 = env->insns_flags2 & insns_compat_mask2;
-        cpu->mig_nb_BATs = env->nb_BATs;
-    }
     if (cpu->pre_3_0_migration) {
         if (cpu->hash64_opts) {
             cpu->mig_slb_nr = cpu->hash64_opts->slb_size;
@@ -760,12 +714,6 @@ const VMStateDescription vmstate_ppc_cpu = {
         /* Backward compatible internal state */
         VMSTATE_UINTTL(env.hflags_compat_nmsr, PowerPCCPU),
 
-        /* Sanity checking */
-        VMSTATE_UINTTL_TEST(mig_msr_mask, PowerPCCPU, cpu_pre_2_8_migration),
-        VMSTATE_UINT64_TEST(mig_insns_flags, PowerPCCPU, cpu_pre_2_8_migration),
-        VMSTATE_UINT64_TEST(mig_insns_flags2, PowerPCCPU,
-                            cpu_pre_2_8_migration),
-        VMSTATE_UINT32_TEST(mig_nb_BATs, PowerPCCPU, cpu_pre_2_8_migration),
         VMSTATE_END_OF_LIST()
     },
     .subsections = (const VMStateDescription * const []) {
-- 
2.45.2

[PATCH v4 08/13] ppc/spapr: remove deprecated machine pseries-2.8

[Harsh Prateek Bora]

Commit 1392617d3576 intended to tag pseries-2.1 - 2.11 machines as
deprecated with reasons mentioned in its commit log.
Removing pseries-2.8 specific code with this patch for now.

Suggested-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
---
 hw/ppc/spapr.c | 18 ------------------
 1 file changed, 18 deletions(-)

diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index c89ab89b97..93decfcbeb 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -5185,24 +5185,6 @@ static void spapr_machine_2_9_class_options(MachineClass *mc)
 
 DEFINE_SPAPR_MACHINE(2, 9);
 
-/*
- * pseries-2.8
- */
-
-static void spapr_machine_2_8_class_options(MachineClass *mc)
-{
-    static GlobalProperty compat[] = {
-        { TYPE_SPAPR_PCI_HOST_BRIDGE, "pcie-extended-configuration-space", "off" },
-    };
-
-    spapr_machine_2_9_class_options(mc);
-    compat_props_add(mc->compat_props, hw_compat_2_8, hw_compat_2_8_len);
-    compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
-    mc->numa_mem_align_shift = 23;
-}
-
-DEFINE_SPAPR_MACHINE(2, 8);
-
 static void spapr_machine_register_types(void)
 {
     type_register_static(&spapr_machine_info);
-- 
2.45.2

[PATCH v4 09/13] ppc/spapr: remove deprecated machine pseries-2.9

[Harsh Prateek Bora]

Commit 1392617d3576 intended to tag pseries-2.1 - 2.11 machines as
deprecated with reasons mentioned in its commit log.
Removing pseries-2.9 specific code with this patch for now.

While at it, also remove the pre-2.10 migration hacks which now become
obsolete.

Suggested-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
---
 include/hw/ppc/spapr.h |   1 -
 target/ppc/cpu.h       |   1 -
 hw/intc/xics.c         |  16 -------
 hw/ppc/spapr.c         | 104 -----------------------------------------
 migration/savevm.c     |  19 --------
 target/ppc/cpu_init.c  |   2 -
 target/ppc/machine.c   |   2 +-
 7 files changed, 1 insertion(+), 144 deletions(-)

diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
index 6e9e62386c..af4aa1cb0f 100644
--- a/include/hw/ppc/spapr.h
+++ b/include/hw/ppc/spapr.h
@@ -143,7 +143,6 @@ struct SpaprMachineClass {
     /*< public >*/
     bool dr_phb_enabled;       /* enable dynamic-reconfig/hotplug of PHBs */
     bool update_dt_enabled;    /* enable KVMPPC_H_UPDATE_DT */
-    bool pre_2_10_has_unused_icps;
     bool legacy_irq_allocation;
     uint32_t nr_xirqs;
     bool broken_host_serial_model; /* present real host info to the guest */
diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h
index cab4a46fc1..74a0ab768d 100644
--- a/target/ppc/cpu.h
+++ b/target/ppc/cpu.h
@@ -1456,7 +1456,6 @@ struct ArchCPU {
     opc_handler_t *opcodes[PPC_CPU_OPCODES_LEN];
 
     /* Fields related to migration compatibility hacks */
-    bool pre_2_10_migration;
     bool pre_3_0_migration;
     int32_t mig_slb_nr;
 };
diff --git a/hw/intc/xics.c b/hw/intc/xics.c
index 6f4d5271ea..e893363dc9 100644
--- a/hw/intc/xics.c
+++ b/hw/intc/xics.c
@@ -335,22 +335,6 @@ static void icp_realize(DeviceState *dev, Error **errp)
             return;
         }
     }
-    /*
-     * The way that pre_2_10_icp is handling is really, really hacky.
-     * We used to have here this call:
-     *
-     * vmstate_register(NULL, icp->cs->cpu_index, &vmstate_icp_server, icp);
-     *
-     * But we were doing:
-     *     pre_2_10_vmstate_register_dummy_icp()
-     *     this vmstate_register()
-     *     pre_2_10_vmstate_unregister_dummy_icp()
-     *
-     * So for a short amount of time we had to vmstate entries with
-     * the same name.  This fixes it.
-     */
-    vmstate_replace_hack_for_ppc(NULL, icp->cs->cpu_index,
-                                 &vmstate_icp_server, icp);
 }
 
 static void icp_unrealize(DeviceState *dev)
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 93decfcbeb..14a1314af6 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -132,61 +132,6 @@ static bool spapr_is_thread0_in_vcore(SpaprMachineState *spapr,
     return spapr_get_vcpu_id(cpu) % spapr->vsmt == 0;
 }
 
-static bool pre_2_10_vmstate_dummy_icp_needed(void *opaque)
-{
-    /* Dummy entries correspond to unused ICPState objects in older QEMUs,
-     * and newer QEMUs don't even have them. In both cases, we don't want
-     * to send anything on the wire.
-     */
-    return false;
-}
-
-static const VMStateDescription pre_2_10_vmstate_dummy_icp = {
-    /*
-     * Hack ahead.  We can't have two devices with the same name and
-     * instance id.  So I rename this to pass make check.
-     * Real help from people who knows the hardware is needed.
-     */
-    .name = "icp/server",
-    .version_id = 1,
-    .minimum_version_id = 1,
-    .needed = pre_2_10_vmstate_dummy_icp_needed,
-    .fields = (const VMStateField[]) {
-        VMSTATE_UNUSED(4), /* uint32_t xirr */
-        VMSTATE_UNUSED(1), /* uint8_t pending_priority */
-        VMSTATE_UNUSED(1), /* uint8_t mfrr */
-        VMSTATE_END_OF_LIST()
-    },
-};
-
-/*
- * See comment in hw/intc/xics.c:icp_realize()
- *
- * You have to remove vmstate_replace_hack_for_ppc() when you remove
- * the machine types that need the following function.
- */
-static void pre_2_10_vmstate_register_dummy_icp(int i)
-{
-    vmstate_register(NULL, i, &pre_2_10_vmstate_dummy_icp,
-                     (void *)(uintptr_t) i);
-}
-
-/*
- * See comment in hw/intc/xics.c:icp_realize()
- *
- * You have to remove vmstate_replace_hack_for_ppc() when you remove
- * the machine types that need the following function.
- */
-static void pre_2_10_vmstate_unregister_dummy_icp(int i)
-{
-    /*
-     * This used to be:
-     *
-     *    vmstate_unregister(NULL, &pre_2_10_vmstate_dummy_icp,
-     *                      (void *)(uintptr_t) i);
-     */
-}
-
 int spapr_max_server_number(SpaprMachineState *spapr)
 {
     MachineState *ms = MACHINE(spapr);
@@ -2711,7 +2656,6 @@ static void spapr_init_cpus(SpaprMachineState *spapr)
 {
     MachineState *machine = MACHINE(spapr);
     MachineClass *mc = MACHINE_GET_CLASS(machine);
-    SpaprMachineClass *smc = SPAPR_MACHINE_GET_CLASS(machine);
     const char *type = spapr_get_cpu_core_type(machine->cpu_type);
     const CPUArchIdList *possible_cpus;
     unsigned int smp_cpus = machine->smp.cpus;
@@ -2740,15 +2684,6 @@ static void spapr_init_cpus(SpaprMachineState *spapr)
         boot_cores_nr = possible_cpus->len;
     }
 
-    if (smc->pre_2_10_has_unused_icps) {
-        for (i = 0; i < spapr_max_server_number(spapr); i++) {
-            /* Dummy entries get deregistered when real ICPState objects
-             * are registered during CPU core hotplug.
-             */
-            pre_2_10_vmstate_register_dummy_icp(i);
-        }
-    }
-
     for (i = 0; i < possible_cpus->len; i++) {
         int core_id = i * smp_threads;
 
@@ -3914,21 +3849,9 @@ void spapr_core_release(DeviceState *dev)
 static void spapr_core_unplug(HotplugHandler *hotplug_dev, DeviceState *dev)
 {
     MachineState *ms = MACHINE(hotplug_dev);
-    SpaprMachineClass *smc = SPAPR_MACHINE_GET_CLASS(ms);
     CPUCore *cc = CPU_CORE(dev);
     CPUArchId *core_slot = spapr_find_cpu_slot(ms, cc->core_id, NULL);
 
-    if (smc->pre_2_10_has_unused_icps) {
-        SpaprCpuCore *sc = SPAPR_CPU_CORE(OBJECT(dev));
-        int i;
-
-        for (i = 0; i < cc->nr_threads; i++) {
-            CPUState *cs = CPU(sc->threads[i]);
-
-            pre_2_10_vmstate_register_dummy_icp(cs->cpu_index);
-        }
-    }
-
     assert(core_slot);
     core_slot->cpu = NULL;
     qdev_unrealize(dev);
@@ -4009,7 +3932,6 @@ static void spapr_core_plug(HotplugHandler *hotplug_dev, DeviceState *dev)
 {
     SpaprMachineState *spapr = SPAPR_MACHINE(OBJECT(hotplug_dev));
     MachineClass *mc = MACHINE_GET_CLASS(spapr);
-    SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
     SpaprCpuCore *core = SPAPR_CPU_CORE(OBJECT(dev));
     CPUCore *cc = CPU_CORE(dev);
     SpaprDrc *drc;
@@ -4059,12 +3981,6 @@ static void spapr_core_plug(HotplugHandler *hotplug_dev, DeviceState *dev)
         }
     }
 
-    if (smc->pre_2_10_has_unused_icps) {
-        for (i = 0; i < cc->nr_threads; i++) {
-            CPUState *cs = CPU(core->threads[i]);
-            pre_2_10_vmstate_unregister_dummy_icp(cs->cpu_index);
-        }
-    }
 }
 
 static void spapr_core_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
@@ -5165,26 +5081,6 @@ static void spapr_machine_2_10_class_options(MachineClass *mc)
 
 DEFINE_SPAPR_MACHINE(2, 10);
 
-/*
- * pseries-2.9
- */
-
-static void spapr_machine_2_9_class_options(MachineClass *mc)
-{
-    SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
-    static GlobalProperty compat[] = {
-        { TYPE_POWERPC_CPU, "pre-2.10-migration", "on" },
-    };
-
-    spapr_machine_2_10_class_options(mc);
-    compat_props_add(mc->compat_props, hw_compat_2_9, hw_compat_2_9_len);
-    compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
-    smc->pre_2_10_has_unused_icps = true;
-    smc->resize_hpt_default = SPAPR_RESIZE_HPT_DISABLED;
-}
-
-DEFINE_SPAPR_MACHINE(2, 9);
-
 static void spapr_machine_register_types(void)
 {
     type_register_static(&spapr_machine_info);
diff --git a/migration/savevm.c b/migration/savevm.c
index 7e1e27182a..839a34402b 100644
--- a/migration/savevm.c
+++ b/migration/savevm.c
@@ -860,25 +860,6 @@ static void vmstate_check(const VMStateDescription *vmsd)
     }
 }
 
-/*
- * See comment in hw/intc/xics.c:icp_realize()
- *
- * This function can be removed when
- * pre_2_10_vmstate_register_dummy_icp() is removed.
- */
-int vmstate_replace_hack_for_ppc(VMStateIf *obj, int instance_id,
-                                 const VMStateDescription *vmsd,
-                                 void *opaque)
-{
-    SaveStateEntry *se = find_se(vmsd->name, instance_id);
-
-    if (se) {
-        savevm_state_handler_remove(se);
-        g_free(se->compat);
-        g_free(se);
-    }
-    return vmstate_register(obj, instance_id, vmsd, opaque);
-}
 
 int vmstate_register_with_alias_id(VMStateIf *obj, uint32_t instance_id,
                                    const VMStateDescription *vmsd,
diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c
index 7768392986..39c19e6674 100644
--- a/target/ppc/cpu_init.c
+++ b/target/ppc/cpu_init.c
@@ -7452,8 +7452,6 @@ static void ppc_disas_set_info(CPUState *cs, disassemble_info *info)
 }
 
 static Property ppc_cpu_properties[] = {
-    DEFINE_PROP_BOOL("pre-2.10-migration", PowerPCCPU, pre_2_10_migration,
-                     false),
     DEFINE_PROP_BOOL("pre-3.0-migration", PowerPCCPU, pre_3_0_migration,
                      false),
     DEFINE_PROP_END_OF_LIST(),
diff --git a/target/ppc/machine.c b/target/ppc/machine.c
index 21bed7c7c8..47495b68b1 100644
--- a/target/ppc/machine.c
+++ b/target/ppc/machine.c
@@ -630,7 +630,7 @@ static bool compat_needed(void *opaque)
     PowerPCCPU *cpu = opaque;
 
     assert(!(cpu->compat_pvr && !cpu->vhyp));
-    return !cpu->pre_2_10_migration && cpu->compat_pvr != 0;
+    return cpu->compat_pvr != 0;
 }
 
 static const VMStateDescription vmstate_compat = {
-- 
2.45.2

[PATCH v4 10/13] ppc/spapr: remove deprecated machine pseries-2.10

[Harsh Prateek Bora]

Commit 1392617d3576 intended to tag pseries-2.1 - 2.11 machines as
deprecated with reasons mentioned in its commit log.
Removing pseries-2.10 specific code with this patch for now.

Suggested-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
---
 hw/ppc/spapr.c | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 14a1314af6..4c76d2841c 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -5069,18 +5069,6 @@ static void spapr_machine_2_11_class_options(MachineClass *mc)
 
 DEFINE_SPAPR_MACHINE(2, 11);
 
-/*
- * pseries-2.10
- */
-
-static void spapr_machine_2_10_class_options(MachineClass *mc)
-{
-    spapr_machine_2_11_class_options(mc);
-    compat_props_add(mc->compat_props, hw_compat_2_10, hw_compat_2_10_len);
-}
-
-DEFINE_SPAPR_MACHINE(2, 10);
-
 static void spapr_machine_register_types(void)
 {
     type_register_static(&spapr_machine_info);
-- 
2.45.2

[PATCH v4 11/13] ppc/spapr: remove deprecated machine pseries-2.11

[Harsh Prateek Bora]

Commit 1392617d3576 intended to tag pseries-2.1 - 2.11 machines as
deprecated with reasons mentioned in its commit log.
Removing pseries-2.11 specific code with this patch.

Suggested-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
---
 hw/ppc/spapr.c | 15 ---------------
 1 file changed, 15 deletions(-)

diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 4c76d2841c..faf88a177b 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -5054,21 +5054,6 @@ static void spapr_machine_2_12_sxxm_class_options(MachineClass *mc)
 
 DEFINE_SPAPR_MACHINE_TAGGED(2, 12, sxxm);
 
-/*
- * pseries-2.11
- */
-
-static void spapr_machine_2_11_class_options(MachineClass *mc)
-{
-    SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
-
-    spapr_machine_2_12_class_options(mc);
-    smc->default_caps.caps[SPAPR_CAP_HTM] = SPAPR_CAP_ON;
-    compat_props_add(mc->compat_props, hw_compat_2_11, hw_compat_2_11_len);
-}
-
-DEFINE_SPAPR_MACHINE(2, 11);
-
 static void spapr_machine_register_types(void)
 {
     type_register_static(&spapr_machine_info);
-- 
2.45.2

[PATCH v4 12/13] ppc/spapr: remove deprecated machine pseries-2.12-sxxm

[Harsh Prateek Bora]

Commit 0cac0f1b964 marked pseries-2.12 machines as deprecated
with reasons mentioned in its commit log.
Removing pseries-2.12-sxxm specific code with this patch.

Suggested-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
---
 hw/ppc/spapr.c | 14 --------------
 1 file changed, 14 deletions(-)

diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index faf88a177b..aba0ad26f1 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -4731,8 +4731,6 @@ static void spapr_machine_latest_class_options(MachineClass *mc)
     DEFINE_SPAPR_MACHINE_IMPL(true, major, minor)
 #define DEFINE_SPAPR_MACHINE(major, minor) \
     DEFINE_SPAPR_MACHINE_IMPL(false, major, minor)
-#define DEFINE_SPAPR_MACHINE_TAGGED(major, minor, tag) \
-    DEFINE_SPAPR_MACHINE_IMPL(false, major, minor, _, tag)
 
 /*
  * pseries-9.2
@@ -5042,18 +5040,6 @@ static void spapr_machine_2_12_class_options(MachineClass *mc)
 
 DEFINE_SPAPR_MACHINE(2, 12);
 
-static void spapr_machine_2_12_sxxm_class_options(MachineClass *mc)
-{
-    SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
-
-    spapr_machine_2_12_class_options(mc);
-    smc->default_caps.caps[SPAPR_CAP_CFPC] = SPAPR_CAP_WORKAROUND;
-    smc->default_caps.caps[SPAPR_CAP_SBBC] = SPAPR_CAP_WORKAROUND;
-    smc->default_caps.caps[SPAPR_CAP_IBS] = SPAPR_CAP_FIXED_CCD;
-}
-
-DEFINE_SPAPR_MACHINE_TAGGED(2, 12, sxxm);
-
 static void spapr_machine_register_types(void)
 {
     type_register_static(&spapr_machine_info);
-- 
2.45.2

[PATCH v4 13/13] ppc/spapr: remove deprecated machine pseries-2.12

[Harsh Prateek Bora]

Commit 0cac0f1b964 marked pseries-2.12 machines as deprecated
with reasons mentioned in its commit log.
Removing pseries-2.12 specific code with this patch.

While at it, also remove pre-3.0-migration hacks introduced for backward
compatibility which are now turned useless.

Suggested-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
---
 docs/about/deprecated.rst       |  8 --------
 include/hw/ppc/spapr_cpu_core.h |  1 -
 target/ppc/cpu.h                |  4 ----
 hw/ppc/spapr.c                  | 25 -------------------------
 hw/ppc/spapr_cpu_core.c         | 12 +++---------
 target/ppc/cpu_init.c           |  3 +--
 target/ppc/machine.c            | 18 +-----------------
 7 files changed, 5 insertions(+), 66 deletions(-)

diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst
index 48b230b0a0..3b312a5de2 100644
--- a/docs/about/deprecated.rst
+++ b/docs/about/deprecated.rst
@@ -243,14 +243,6 @@ These old machine types are quite neglected nowadays and thus might have
 various pitfalls with regards to live migration. Use a newer machine type
 instead.
 
-``pseries-2.1`` up to ``pseries-2.12`` (since 9.0)
-''''''''''''''''''''''''''''''''''''''''''''''''''
-
-Older pseries machines before version 3.0 have undergone many changes
-to correct issues, mostly regarding migration compatibility. These are
-no longer maintained and removing them will make the code easier to
-read and maintain. Use versions 3.0 and above as a replacement.
-
 PPC 405 ``ref405ep`` machine (since 9.1)
 ''''''''''''''''''''''''''''''''''''''''
 
diff --git a/include/hw/ppc/spapr_cpu_core.h b/include/hw/ppc/spapr_cpu_core.h
index 69a52e39b8..68f7083483 100644
--- a/include/hw/ppc/spapr_cpu_core.h
+++ b/include/hw/ppc/spapr_cpu_core.h
@@ -28,7 +28,6 @@ struct SpaprCpuCore {
     /*< public >*/
     PowerPCCPU **threads;
     int node_id;
-    bool pre_3_0_migration; /* older machine don't know about SpaprCpuState */
 };
 
 struct SpaprCpuCoreClass {
diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h
index 74a0ab768d..506c8c825c 100644
--- a/target/ppc/cpu.h
+++ b/target/ppc/cpu.h
@@ -1454,10 +1454,6 @@ struct ArchCPU {
     /* Those resources are used only during code translation */
     /* opcode handlers */
     opc_handler_t *opcodes[PPC_CPU_OPCODES_LEN];
-
-    /* Fields related to migration compatibility hacks */
-    bool pre_3_0_migration;
-    int32_t mig_slb_nr;
 };
 
 /**
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index aba0ad26f1..5c02037c56 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -5015,31 +5015,6 @@ static void spapr_machine_3_0_class_options(MachineClass *mc)
 
 DEFINE_SPAPR_MACHINE(3, 0);
 
-/*
- * pseries-2.12
- */
-static void spapr_machine_2_12_class_options(MachineClass *mc)
-{
-    SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
-    static GlobalProperty compat[] = {
-        { TYPE_POWERPC_CPU, "pre-3.0-migration", "on" },
-        { TYPE_SPAPR_CPU_CORE, "pre-3.0-migration", "on" },
-    };
-
-    spapr_machine_3_0_class_options(mc);
-    compat_props_add(mc->compat_props, hw_compat_2_12, hw_compat_2_12_len);
-    compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
-
-    /* We depend on kvm_enabled() to choose a default value for the
-     * hpt-max-page-size capability. Of course we can't do it here
-     * because this is too early and the HW accelerator isn't initialized
-     * yet. Postpone this to machine init (see default_caps_with_cpu()).
-     */
-    smc->default_caps.caps[SPAPR_CAP_HPT_MAXPAGESIZE] = 0;
-}
-
-DEFINE_SPAPR_MACHINE(2, 12);
-
 static void spapr_machine_register_types(void)
 {
     type_register_static(&spapr_machine_info);
diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c
index 4642245168..1a84345f36 100644
--- a/hw/ppc/spapr_cpu_core.c
+++ b/hw/ppc/spapr_cpu_core.c
@@ -197,9 +197,7 @@ static void spapr_unrealize_vcpu(PowerPCCPU *cpu, SpaprCpuCore *sc)
 {
     CPUPPCState *env = &cpu->env;
 
-    if (!sc->pre_3_0_migration) {
-        vmstate_unregister(NULL, &vmstate_spapr_cpu_state, cpu->machine_data);
-    }
+    vmstate_unregister(NULL, &vmstate_spapr_cpu_state, cpu->machine_data);
     spapr_irq_cpu_intc_destroy(SPAPR_MACHINE(qdev_get_machine()), cpu);
     cpu_ppc_tb_free(env);
     qdev_unrealize(DEVICE(cpu));
@@ -285,10 +283,8 @@ static bool spapr_realize_vcpu(PowerPCCPU *cpu, SpaprMachineState *spapr,
         return false;
     }
 
-    if (!sc->pre_3_0_migration) {
-        vmstate_register(NULL, cs->cpu_index, &vmstate_spapr_cpu_state,
-                         cpu->machine_data);
-    }
+    vmstate_register(NULL, cs->cpu_index, &vmstate_spapr_cpu_state,
+                     cpu->machine_data);
     return true;
 }
 
@@ -366,8 +362,6 @@ static void spapr_cpu_core_realize(DeviceState *dev, Error **errp)
 
 static Property spapr_cpu_core_properties[] = {
     DEFINE_PROP_INT32("node-id", SpaprCpuCore, node_id, CPU_UNSET_NUMA_NODE_ID),
-    DEFINE_PROP_BOOL("pre-3.0-migration", SpaprCpuCore, pre_3_0_migration,
-                     false),
     DEFINE_PROP_END_OF_LIST()
 };
 
diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c
index 39c19e6674..011e53d961 100644
--- a/target/ppc/cpu_init.c
+++ b/target/ppc/cpu_init.c
@@ -7452,8 +7452,7 @@ static void ppc_disas_set_info(CPUState *cs, disassemble_info *info)
 }
 
 static Property ppc_cpu_properties[] = {
-    DEFINE_PROP_BOOL("pre-3.0-migration", PowerPCCPU, pre_3_0_migration,
-                     false),
+    /* add default property here */
     DEFINE_PROP_END_OF_LIST(),
 };
 
diff --git a/target/ppc/machine.c b/target/ppc/machine.c
index 47495b68b1..717bf93e88 100644
--- a/target/ppc/machine.c
+++ b/target/ppc/machine.c
@@ -118,15 +118,6 @@ static const VMStateInfo vmstate_info_vsr = {
 #define VMSTATE_VSR_ARRAY(_f, _s, _n)                             \
     VMSTATE_VSR_ARRAY_V(_f, _s, _n, 0)
 
-#if defined(TARGET_PPC64)
-static bool cpu_pre_3_0_migration(void *opaque, int version_id)
-{
-    PowerPCCPU *cpu = opaque;
-
-    return cpu->pre_3_0_migration;
-}
-#endif
-
 static int cpu_pre_save(void *opaque)
 {
     PowerPCCPU *cpu = opaque;
@@ -154,12 +145,6 @@ static int cpu_pre_save(void *opaque)
         env->spr[SPR_IBAT4U + 2 * i + 1] = env->IBAT[1][i + 4];
     }
 
-    if (cpu->pre_3_0_migration) {
-        if (cpu->hash64_opts) {
-            cpu->mig_slb_nr = cpu->hash64_opts->slb_size;
-        }
-    }
-
     /* Used to retain migration compatibility for pre 6.0 for 601 machines. */
     env->hflags_compat_nmsr = 0;
 
@@ -503,12 +488,11 @@ static int slb_post_load(void *opaque, int version_id)
 
 static const VMStateDescription vmstate_slb = {
     .name = "cpu/slb",
-    .version_id = 1,
+    .version_id = 2,
     .minimum_version_id = 1,
     .needed = slb_needed,
     .post_load = slb_post_load,
     .fields = (const VMStateField[]) {
-        VMSTATE_INT32_TEST(mig_slb_nr, PowerPCCPU, cpu_pre_3_0_migration),
         VMSTATE_SLB_ARRAY(env.slb, PowerPCCPU, MAX_SLB_ENTRIES),
         VMSTATE_END_OF_LIST()
     }
-- 
2.45.2

Re: [PATCH v4 12/13] ppc/spapr: remove deprecated machine pseries-2.12-sxxm

[Cédric Le Goater]

On 10/14/24 14:27, Harsh Prateek Bora wrote:
> Commit 0cac0f1b964 marked pseries-2.12 machines as deprecated
> with reasons mentioned in its commit log.
> Removing pseries-2.12-sxxm specific code with this patch.
> 
> Suggested-by: Cédric Le Goater <clg@kaod.org>
> Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com>


Reviewed-by: Cédric Le Goater <clg@redhat.com>

Thanks,

C.


> ---
>   hw/ppc/spapr.c | 14 --------------
>   1 file changed, 14 deletions(-)
> 
> diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
> index faf88a177b..aba0ad26f1 100644
> --- a/hw/ppc/spapr.c
> +++ b/hw/ppc/spapr.c
> @@ -4731,8 +4731,6 @@ static void spapr_machine_latest_class_options(MachineClass *mc)
>       DEFINE_SPAPR_MACHINE_IMPL(true, major, minor)
>   #define DEFINE_SPAPR_MACHINE(major, minor) \
>       DEFINE_SPAPR_MACHINE_IMPL(false, major, minor)
> -#define DEFINE_SPAPR_MACHINE_TAGGED(major, minor, tag) \
> -    DEFINE_SPAPR_MACHINE_IMPL(false, major, minor, _, tag)
>   
>   /*
>    * pseries-9.2
> @@ -5042,18 +5040,6 @@ static void spapr_machine_2_12_class_options(MachineClass *mc)
>   
>   DEFINE_SPAPR_MACHINE(2, 12);
>   
> -static void spapr_machine_2_12_sxxm_class_options(MachineClass *mc)
> -{
> -    SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
> -
> -    spapr_machine_2_12_class_options(mc);
> -    smc->default_caps.caps[SPAPR_CAP_CFPC] = SPAPR_CAP_WORKAROUND;
> -    smc->default_caps.caps[SPAPR_CAP_SBBC] = SPAPR_CAP_WORKAROUND;
> -    smc->default_caps.caps[SPAPR_CAP_IBS] = SPAPR_CAP_FIXED_CCD;
> -}
> -
> -DEFINE_SPAPR_MACHINE_TAGGED(2, 12, sxxm);
> -
>   static void spapr_machine_register_types(void)
>   {
>       type_register_static(&spapr_machine_info);

Re: [PATCH v4 13/13] ppc/spapr: remove deprecated machine pseries-2.12

[Cédric Le Goater]

On 10/14/24 14:27, Harsh Prateek Bora wrote:
> Commit 0cac0f1b964 marked pseries-2.12 machines as deprecated
> with reasons mentioned in its commit log.
> Removing pseries-2.12 specific code with this patch.
> 
> While at it, also remove pre-3.0-migration hacks introduced for backward
> compatibility which are now turned useless.
> 
> Suggested-by: Cédric Le Goater <clg@kaod.org>
> Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
> ---
>   docs/about/deprecated.rst       |  8 --------
>   include/hw/ppc/spapr_cpu_core.h |  1 -
>   target/ppc/cpu.h                |  4 ----
>   hw/ppc/spapr.c                  | 25 -------------------------
>   hw/ppc/spapr_cpu_core.c         | 12 +++---------
>   target/ppc/cpu_init.c           |  3 +--
>   target/ppc/machine.c            | 18 +-----------------
>   7 files changed, 5 insertions(+), 66 deletions(-)
> 
> diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst
> index 48b230b0a0..3b312a5de2 100644
> --- a/docs/about/deprecated.rst
> +++ b/docs/about/deprecated.rst
> @@ -243,14 +243,6 @@ These old machine types are quite neglected nowadays and thus might have
>   various pitfalls with regards to live migration. Use a newer machine type
>   instead.
>   
> -``pseries-2.1`` up to ``pseries-2.12`` (since 9.0)
> -''''''''''''''''''''''''''''''''''''''''''''''''''
> -
> -Older pseries machines before version 3.0 have undergone many changes
> -to correct issues, mostly regarding migration compatibility. These are
> -no longer maintained and removing them will make the code easier to
> -read and maintain. Use versions 3.0 and above as a replacement.
> -
>   PPC 405 ``ref405ep`` machine (since 9.1)
>   ''''''''''''''''''''''''''''''''''''''''
>   
> diff --git a/include/hw/ppc/spapr_cpu_core.h b/include/hw/ppc/spapr_cpu_core.h
> index 69a52e39b8..68f7083483 100644
> --- a/include/hw/ppc/spapr_cpu_core.h
> +++ b/include/hw/ppc/spapr_cpu_core.h
> @@ -28,7 +28,6 @@ struct SpaprCpuCore {
>       /*< public >*/
>       PowerPCCPU **threads;
>       int node_id;
> -    bool pre_3_0_migration; /* older machine don't know about SpaprCpuState */
>   };
>   
>   struct SpaprCpuCoreClass {
> diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h
> index 74a0ab768d..506c8c825c 100644
> --- a/target/ppc/cpu.h
> +++ b/target/ppc/cpu.h
> @@ -1454,10 +1454,6 @@ struct ArchCPU {
>       /* Those resources are used only during code translation */
>       /* opcode handlers */
>       opc_handler_t *opcodes[PPC_CPU_OPCODES_LEN];
> -
> -    /* Fields related to migration compatibility hacks */
> -    bool pre_3_0_migration;
> -    int32_t mig_slb_nr;
>   };
>   
>   /**
> diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
> index aba0ad26f1..5c02037c56 100644
> --- a/hw/ppc/spapr.c
> +++ b/hw/ppc/spapr.c
> @@ -5015,31 +5015,6 @@ static void spapr_machine_3_0_class_options(MachineClass *mc)
>   
>   DEFINE_SPAPR_MACHINE(3, 0);
>   
> -/*
> - * pseries-2.12
> - */
> -static void spapr_machine_2_12_class_options(MachineClass *mc)
> -{
> -    SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
> -    static GlobalProperty compat[] = {
> -        { TYPE_POWERPC_CPU, "pre-3.0-migration", "on" },
> -        { TYPE_SPAPR_CPU_CORE, "pre-3.0-migration", "on" },
> -    };
> -
> -    spapr_machine_3_0_class_options(mc);
> -    compat_props_add(mc->compat_props, hw_compat_2_12, hw_compat_2_12_len);
> -    compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
> -
> -    /* We depend on kvm_enabled() to choose a default value for the
> -     * hpt-max-page-size capability. Of course we can't do it here
> -     * because this is too early and the HW accelerator isn't initialized
> -     * yet. Postpone this to machine init (see default_caps_with_cpu()).
> -     */
> -    smc->default_caps.caps[SPAPR_CAP_HPT_MAXPAGESIZE] = 0;
> -}
> -
> -DEFINE_SPAPR_MACHINE(2, 12);
> -
>   static void spapr_machine_register_types(void)
>   {
>       type_register_static(&spapr_machine_info);
> diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c
> index 4642245168..1a84345f36 100644
> --- a/hw/ppc/spapr_cpu_core.c
> +++ b/hw/ppc/spapr_cpu_core.c
> @@ -197,9 +197,7 @@ static void spapr_unrealize_vcpu(PowerPCCPU *cpu, SpaprCpuCore *sc)
>   {
>       CPUPPCState *env = &cpu->env;
>   
> -    if (!sc->pre_3_0_migration) {
> -        vmstate_unregister(NULL, &vmstate_spapr_cpu_state, cpu->machine_data);
> -    }
> +    vmstate_unregister(NULL, &vmstate_spapr_cpu_state, cpu->machine_data);
>       spapr_irq_cpu_intc_destroy(SPAPR_MACHINE(qdev_get_machine()), cpu);
>       cpu_ppc_tb_free(env);
>       qdev_unrealize(DEVICE(cpu));
> @@ -285,10 +283,8 @@ static bool spapr_realize_vcpu(PowerPCCPU *cpu, SpaprMachineState *spapr,
>           return false;
>       }
>   
> -    if (!sc->pre_3_0_migration) {
> -        vmstate_register(NULL, cs->cpu_index, &vmstate_spapr_cpu_state,
> -                         cpu->machine_data);
> -    }
> +    vmstate_register(NULL, cs->cpu_index, &vmstate_spapr_cpu_state,
> +                     cpu->machine_data);
>       return true;
>   }
>   
> @@ -366,8 +362,6 @@ static void spapr_cpu_core_realize(DeviceState *dev, Error **errp)
>   
>   static Property spapr_cpu_core_properties[] = {
>       DEFINE_PROP_INT32("node-id", SpaprCpuCore, node_id, CPU_UNSET_NUMA_NODE_ID),
> -    DEFINE_PROP_BOOL("pre-3.0-migration", SpaprCpuCore, pre_3_0_migration,
> -                     false),
>       DEFINE_PROP_END_OF_LIST()
>   };
>   
> diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c
> index 39c19e6674..011e53d961 100644
> --- a/target/ppc/cpu_init.c
> +++ b/target/ppc/cpu_init.c
> @@ -7452,8 +7452,7 @@ static void ppc_disas_set_info(CPUState *cs, disassemble_info *info)
>   }
>   
>   static Property ppc_cpu_properties[] = {
> -    DEFINE_PROP_BOOL("pre-3.0-migration", PowerPCCPU, pre_3_0_migration,
> -                     false),
> +    /* add default property here */
>       DEFINE_PROP_END_OF_LIST(),

In case you resping, please remove ppc_cpu_properties[].

Since this is minor,


Reviewed-by: Cédric Le Goater <clg@redhat.com>

Thanks,

C.



>   };
>   
> diff --git a/target/ppc/machine.c b/target/ppc/machine.c
> index 47495b68b1..717bf93e88 100644
> --- a/target/ppc/machine.c
> +++ b/target/ppc/machine.c
> @@ -118,15 +118,6 @@ static const VMStateInfo vmstate_info_vsr = {
>   #define VMSTATE_VSR_ARRAY(_f, _s, _n)                             \
>       VMSTATE_VSR_ARRAY_V(_f, _s, _n, 0)
>   
> -#if defined(TARGET_PPC64)
> -static bool cpu_pre_3_0_migration(void *opaque, int version_id)
> -{
> -    PowerPCCPU *cpu = opaque;
> -
> -    return cpu->pre_3_0_migration;
> -}
> -#endif
> -
>   static int cpu_pre_save(void *opaque)
>   {
>       PowerPCCPU *cpu = opaque;
> @@ -154,12 +145,6 @@ static int cpu_pre_save(void *opaque)
>           env->spr[SPR_IBAT4U + 2 * i + 1] = env->IBAT[1][i + 4];
>       }
>   
> -    if (cpu->pre_3_0_migration) {
> -        if (cpu->hash64_opts) {
> -            cpu->mig_slb_nr = cpu->hash64_opts->slb_size;
> -        }
> -    }
> -
>       /* Used to retain migration compatibility for pre 6.0 for 601 machines. */
>       env->hflags_compat_nmsr = 0;
>   
> @@ -503,12 +488,11 @@ static int slb_post_load(void *opaque, int version_id)
>   
>   static const VMStateDescription vmstate_slb = {
>       .name = "cpu/slb",
> -    .version_id = 1,
> +    .version_id = 2,
>       .minimum_version_id = 1,
>       .needed = slb_needed,
>       .post_load = slb_post_load,
>       .fields = (const VMStateField[]) {
> -        VMSTATE_INT32_TEST(mig_slb_nr, PowerPCCPU, cpu_pre_3_0_migration),
>           VMSTATE_SLB_ARRAY(env.slb, PowerPCCPU, MAX_SLB_ENTRIES),
>           VMSTATE_END_OF_LIST()
>       }