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 "config.h"
  13 #include "qemu-common.h"
  14 #include "e500.h"
  15 #include "hw/boards.h"
  16 #include "sysemu/device_tree.h"
  17 #include "hw/pci/pci.h"
  18 #include "hw/ppc/openpic.h"
  19 #include "kvm_ppc.h"
  20
  21 static void e500plat_fixup_devtree(PPCE500Params *params, void *fdt)
  22 {
  23     const char model[] = "QEMU ppce500";
  24     const char compatible[] = "fsl,qemu-e500";
  25
  26     qemu_fdt_setprop(fdt, "/", "model", model, sizeof(model));
  27     qemu_fdt_setprop(fdt, "/", "compatible", compatible,
  28                      sizeof(compatible));
  29 }
  30
  31 static void e500plat_init(MachineState *machine)
  32 {
  33     PPCE500Params params = {
  34         .pci_first_slot = 0x1,
  35         .pci_nr_slots = PCI_SLOT_MAX - 1,
  36         .fixup_devtree = e500plat_fixup_devtree,
  37         .mpic_version = OPENPIC_MODEL_FSL_MPIC_42,
  38         .has_mpc8xxx_gpio = true,
  39         .has_platform_bus = true,
  40         .platform_bus_base = 0xf00000000ULL,
  41         .platform_bus_size = (128ULL * 1024 * 1024),
  42         .platform_bus_first_irq = 5,
  43         .platform_bus_num_irqs = 10,
  44     };
  45
  46     /* Older KVM versions don't support EPR which breaks guests when we announce
  47        MPIC variants that support EPR. Revert to an older one for those */
  48     if (kvm_enabled() && !kvmppc_has_cap_epr()) {
  49         params.mpic_version = OPENPIC_MODEL_FSL_MPIC_20;
  50     }
  51
  52     ppce500_init(machine, &params);
  53 }
  54
  55 static QEMUMachine e500plat_machine = {
  56     .name = "ppce500",
  57     .desc = "generic paravirt e500 platform",
  58     .init = e500plat_init,
  59     .max_cpus = 32,
  60     .has_dynamic_sysbus = true,
  61 };
  62
  63 static void e500plat_machine_init(void)
  64 {
  65     qemu_register_machine(&e500plat_machine);
  66 }
  67
  68 machine_init(e500plat_machine_init);