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 ram_addr_t ram_size = args->ram_size; 34 const char *boot_device = args->boot_device; 35 const char *cpu_model = args->cpu_model; 36 const char *kernel_filename = args->kernel_filename; 37 const char *kernel_cmdline = args->kernel_cmdline; 38 const char *initrd_filename = args->initrd_filename; 39 PPCE500Params params = { 40 .ram_size = ram_size, 41 .boot_device = boot_device, 42 .kernel_filename = kernel_filename, 43 .kernel_cmdline = kernel_cmdline, 44 .initrd_filename = initrd_filename, 45 .cpu_model = cpu_model, 46 .pci_first_slot = 0x1, 47 .pci_nr_slots = PCI_SLOT_MAX - 1, 48 .fixup_devtree = e500plat_fixup_devtree, 49 .mpic_version = OPENPIC_MODEL_FSL_MPIC_42, 50 }; 51 52 /* Older KVM versions don't support EPR which breaks guests when we announce 53 MPIC variants that support EPR. Revert to an older one for those */ 54 if (kvm_enabled() && !kvmppc_has_cap_epr()) { 55 params.mpic_version = OPENPIC_MODEL_FSL_MPIC_20; 56 } 57 58 ppce500_init(¶ms); 59 } 60 61 static QEMUMachine e500plat_machine = { 62 .name = "ppce500", 63 .desc = "generic paravirt e500 platform", 64 .init = e500plat_init, 65 .max_cpus = 32, 66 DEFAULT_MACHINE_OPTIONS, 67 }; 68 69 static void e500plat_machine_init(void) 70 { 71 qemu_register_machine(&e500plat_machine); 72 } 73 74 machine_init(e500plat_machine_init); 75