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_devtree_setprop(fdt, "/", "model", model, sizeof(model));
  27     qemu_devtree_setprop(fdt, "/", "compatible", compatible,
  28                          sizeof(compatible));
  29 }
  30
  31 static void e500plat_init(QEMUMachineInitArgs *args)
  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     };
  39
  40     /* Older KVM versions don't support EPR which breaks guests when we announce
  41        MPIC variants that support EPR. Revert to an older one for those */
  42     if (kvm_enabled() && !kvmppc_has_cap_epr()) {
  43         params.mpic_version = OPENPIC_MODEL_FSL_MPIC_20;
  44     }
  45
  46     ppce500_init(args, &params);
  47 }
  48
  49 static QEMUMachine e500plat_machine = {
  50     .name = "ppce500",
  51     .desc = "generic paravirt e500 platform",
  52     .init = e500plat_init,
  53     .max_cpus = 32,
  54 };
  55
  56 static void e500plat_machine_init(void)
  57 {
  58     qemu_register_machine(&e500plat_machine);
  59 }
  60
  61 machine_init(e500plat_machine_init);