hw/ppc/e500plat.c

   1 /*
   2  * Generic device-tree-driven paravirt PPC e500 platform
   3  *
   4  * Copyright 2012 Freescale Semiconductor, Inc.
   5  *
   6  * This is free software; you can redistribute it and/or modify
   7  * it under the terms of  the GNU General  Public License as published by
   8  * the Free Software Foundation;  either version 2 of the  License, or
   9  * (at your option) any later version.
  10  */
  11
  12 #include "qemu/osdep.h"
  13 #include "qemu/units.h"
  14 #include "qemu-common.h"
  15 #include "e500.h"
  16 #include "hw/net/fsl_etsec/etsec.h"
  17 #include "hw/boards.h"
  18 #include "sysemu/device_tree.h"
  19 #include "sysemu/kvm.h"
  20 #include "hw/sysbus.h"
  21 #include "hw/pci/pci.h"
  22 #include "hw/ppc/openpic.h"
  23 #include "kvm_ppc.h"
  24
  25 static void e500plat_fixup_devtree(void *fdt)
  26 {
  27     const char model[] = "QEMU ppce500";
  28     const char compatible[] = "fsl,qemu-e500";
  29
  30     qemu_fdt_setprop(fdt, "/", "model", model, sizeof(model));
  31     qemu_fdt_setprop(fdt, "/", "compatible", compatible,
  32                      sizeof(compatible));
  33 }
  34
  35 static void e500plat_init(MachineState *machine)
  36 {
  37     PPCE500MachineClass *pmc = PPCE500_MACHINE_GET_CLASS(machine);
  38     /* Older KVM versions don't support EPR which breaks guests when we announce
  39        MPIC variants that support EPR. Revert to an older one for those */
  40     if (kvm_enabled() && !kvmppc_has_cap_epr()) {
  41         pmc->mpic_version = OPENPIC_MODEL_FSL_MPIC_20;
  42     }
  43
  44     ppce500_init(machine);
  45 }
  46
  47 static void e500plat_machine_device_plug_cb(HotplugHandler *hotplug_dev,
  48                                             DeviceState *dev, Error **errp)
  49 {
  50     PPCE500MachineState *pms = PPCE500_MACHINE(hotplug_dev);
  51
  52     if (pms->pbus_dev) {
  53         if (object_dynamic_cast(OBJECT(dev), TYPE_SYS_BUS_DEVICE)) {
  54             platform_bus_link_device(pms->pbus_dev, SYS_BUS_DEVICE(dev));
  55         }
  56     }
  57 }
  58
  59 static
  60 HotplugHandler *e500plat_machine_get_hotpug_handler(MachineState *machine,
  61                                                     DeviceState *dev)
  62 {
  63     if (object_dynamic_cast(OBJECT(dev), TYPE_SYS_BUS_DEVICE)) {
  64         return HOTPLUG_HANDLER(machine);
  65     }
  66
  67     return NULL;
  68 }
  69
  70 #define TYPE_E500PLAT_MACHINE  MACHINE_TYPE_NAME("ppce500")
  71
  72 static void e500plat_machine_class_init(ObjectClass *oc, void *data)
  73 {
  74     PPCE500MachineClass *pmc = PPCE500_MACHINE_CLASS(oc);
  75     HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc);
  76     MachineClass *mc = MACHINE_CLASS(oc);
  77
  78     assert(!mc->get_hotplug_handler);
  79     mc->get_hotplug_handler = e500plat_machine_get_hotpug_handler;
  80     hc->plug = e500plat_machine_device_plug_cb;
  81
  82     pmc->pci_first_slot = 0x1;
  83     pmc->pci_nr_slots = PCI_SLOT_MAX - 1;
  84     pmc->fixup_devtree = e500plat_fixup_devtree;
  85     pmc->mpic_version = OPENPIC_MODEL_FSL_MPIC_42;
  86     pmc->has_mpc8xxx_gpio = true;
  87     pmc->has_platform_bus = true;
  88     pmc->platform_bus_base = 0xf00000000ULL;
  89     pmc->platform_bus_size = 128 * MiB;
  90     pmc->platform_bus_first_irq = 5;
  91     pmc->platform_bus_num_irqs = 10;
  92     pmc->ccsrbar_base = 0xFE0000000ULL;
  93     pmc->pci_pio_base = 0xFE1000000ULL;
  94     pmc->pci_mmio_base = 0xC00000000ULL;
  95     pmc->pci_mmio_bus_base = 0xE0000000ULL;
  96     pmc->spin_base = 0xFEF000000ULL;
  97
  98     mc->desc = "generic paravirt e500 platform";
  99     mc->init = e500plat_init;
 100     mc->max_cpus = 32;
 101     mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("e500v2_v30");
 102     machine_class_allow_dynamic_sysbus_dev(mc, TYPE_ETSEC_COMMON);
 103  }
 104
 105 static const TypeInfo e500plat_info = {
 106     .name          = TYPE_E500PLAT_MACHINE,
 107     .parent        = TYPE_PPCE500_MACHINE,
 108     .class_init    = e500plat_machine_class_init,
 109     .interfaces    = (InterfaceInfo[]) {
 110          { TYPE_HOTPLUG_HANDLER },
 111          { }
 112     }
 113 };
 114
 115 static void e500plat_register_types(void)
 116 {
 117     type_register_static(&e500plat_info);
 118 }
 119 type_init(e500plat_register_types)