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