1 /* 2 * Q35 chipset based pc system emulator 3 * 4 * Copyright (c) 2003-2004 Fabrice Bellard 5 * Copyright (c) 2009, 2010 6 * Isaku Yamahata <yamahata at valinux co jp> 7 * VA Linux Systems Japan K.K. 8 * Copyright (C) 2012 Jason Baron <jbaron@redhat.com> 9 * 10 * This is based on pc.c, but heavily modified. 11 * 12 * Permission is hereby granted, free of charge, to any person obtaining a copy 13 * of this software and associated documentation files (the "Software"), to deal 14 * in the Software without restriction, including without limitation the rights 15 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 16 * copies of the Software, and to permit persons to whom the Software is 17 * furnished to do so, subject to the following conditions: 18 * 19 * The above copyright notice and this permission notice shall be included in 20 * all copies or substantial portions of the Software. 21 * 22 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 23 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 24 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 25 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 26 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 27 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 28 * THE SOFTWARE. 29 */ 30 #include "hw/hw.h" 31 #include "sysemu/arch_init.h" 32 #include "hw/i2c/smbus.h" 33 #include "hw/boards.h" 34 #include "hw/timer/mc146818rtc.h" 35 #include "hw/xen/xen.h" 36 #include "sysemu/kvm.h" 37 #include "hw/kvm/clock.h" 38 #include "hw/pci-host/q35.h" 39 #include "exec/address-spaces.h" 40 #include "hw/i386/ich9.h" 41 #include "hw/ide/pci.h" 42 #include "hw/ide/ahci.h" 43 #include "hw/usb.h" 44 #include "hw/cpu/icc_bus.h" 45 46 /* ICH9 AHCI has 6 ports */ 47 #define MAX_SATA_PORTS 6 48 49 static bool has_pvpanic = true; 50 static bool has_pci_info = true; 51 52 /* PC hardware initialisation */ 53 static void pc_q35_init(QEMUMachineInitArgs *args) 54 { 55 ram_addr_t ram_size = args->ram_size; 56 const char *cpu_model = args->cpu_model; 57 const char *kernel_filename = args->kernel_filename; 58 const char *kernel_cmdline = args->kernel_cmdline; 59 const char *initrd_filename = args->initrd_filename; 60 const char *boot_device = args->boot_device; 61 ram_addr_t below_4g_mem_size, above_4g_mem_size; 62 Q35PCIHost *q35_host; 63 PCIHostState *phb; 64 PCIBus *host_bus; 65 PCIDevice *lpc; 66 BusState *idebus[MAX_SATA_PORTS]; 67 ISADevice *rtc_state; 68 ISADevice *floppy; 69 MemoryRegion *pci_memory; 70 MemoryRegion *rom_memory; 71 MemoryRegion *ram_memory; 72 GSIState *gsi_state; 73 ISABus *isa_bus; 74 int pci_enabled = 1; 75 qemu_irq *cpu_irq; 76 qemu_irq *gsi; 77 qemu_irq *i8259; 78 int i; 79 ICH9LPCState *ich9_lpc; 80 PCIDevice *ahci; 81 DeviceState *icc_bridge; 82 PcGuestInfo *guest_info; 83 84 icc_bridge = qdev_create(NULL, TYPE_ICC_BRIDGE); 85 object_property_add_child(qdev_get_machine(), "icc-bridge", 86 OBJECT(icc_bridge), NULL); 87 88 pc_cpus_init(cpu_model, icc_bridge); 89 pc_acpi_init("q35-acpi-dsdt.aml"); 90 91 kvmclock_create(); 92 93 if (ram_size >= 0xb0000000) { 94 above_4g_mem_size = ram_size - 0xb0000000; 95 below_4g_mem_size = 0xb0000000; 96 } else { 97 above_4g_mem_size = 0; 98 below_4g_mem_size = ram_size; 99 } 100 101 /* pci enabled */ 102 if (pci_enabled) { 103 pci_memory = g_new(MemoryRegion, 1); 104 memory_region_init(pci_memory, NULL, "pci", INT64_MAX); 105 rom_memory = pci_memory; 106 } else { 107 pci_memory = NULL; 108 rom_memory = get_system_memory(); 109 } 110 111 guest_info = pc_guest_info_init(below_4g_mem_size, above_4g_mem_size); 112 guest_info->has_pci_info = has_pci_info; 113 114 /* allocate ram and load rom/bios */ 115 if (!xen_enabled()) { 116 pc_memory_init(get_system_memory(), kernel_filename, kernel_cmdline, 117 initrd_filename, below_4g_mem_size, above_4g_mem_size, 118 rom_memory, &ram_memory, guest_info); 119 } 120 121 /* irq lines */ 122 gsi_state = g_malloc0(sizeof(*gsi_state)); 123 if (kvm_irqchip_in_kernel()) { 124 kvm_pc_setup_irq_routing(pci_enabled); 125 gsi = qemu_allocate_irqs(kvm_pc_gsi_handler, gsi_state, 126 GSI_NUM_PINS); 127 } else { 128 gsi = qemu_allocate_irqs(gsi_handler, gsi_state, GSI_NUM_PINS); 129 } 130 131 /* create pci host bus */ 132 q35_host = Q35_HOST_DEVICE(qdev_create(NULL, TYPE_Q35_HOST_DEVICE)); 133 134 object_property_add_child(qdev_get_machine(), "q35", OBJECT(q35_host), NULL); 135 q35_host->mch.ram_memory = ram_memory; 136 q35_host->mch.pci_address_space = pci_memory; 137 q35_host->mch.system_memory = get_system_memory(); 138 q35_host->mch.address_space_io = get_system_io(); 139 q35_host->mch.below_4g_mem_size = below_4g_mem_size; 140 q35_host->mch.above_4g_mem_size = above_4g_mem_size; 141 q35_host->mch.guest_info = guest_info; 142 /* pci */ 143 qdev_init_nofail(DEVICE(q35_host)); 144 phb = PCI_HOST_BRIDGE(q35_host); 145 host_bus = phb->bus; 146 /* create ISA bus */ 147 lpc = pci_create_simple_multifunction(host_bus, PCI_DEVFN(ICH9_LPC_DEV, 148 ICH9_LPC_FUNC), true, 149 TYPE_ICH9_LPC_DEVICE); 150 ich9_lpc = ICH9_LPC_DEVICE(lpc); 151 ich9_lpc->pic = gsi; 152 ich9_lpc->ioapic = gsi_state->ioapic_irq; 153 pci_bus_irqs(host_bus, ich9_lpc_set_irq, ich9_lpc_map_irq, ich9_lpc, 154 ICH9_LPC_NB_PIRQS); 155 pci_bus_set_route_irq_fn(host_bus, ich9_route_intx_pin_to_irq); 156 isa_bus = ich9_lpc->isa_bus; 157 158 /*end early*/ 159 isa_bus_irqs(isa_bus, gsi); 160 161 if (kvm_irqchip_in_kernel()) { 162 i8259 = kvm_i8259_init(isa_bus); 163 } else if (xen_enabled()) { 164 i8259 = xen_interrupt_controller_init(); 165 } else { 166 cpu_irq = pc_allocate_cpu_irq(); 167 i8259 = i8259_init(isa_bus, cpu_irq[0]); 168 } 169 170 for (i = 0; i < ISA_NUM_IRQS; i++) { 171 gsi_state->i8259_irq[i] = i8259[i]; 172 } 173 if (pci_enabled) { 174 ioapic_init_gsi(gsi_state, NULL); 175 } 176 qdev_init_nofail(icc_bridge); 177 178 pc_register_ferr_irq(gsi[13]); 179 180 /* init basic PC hardware */ 181 pc_basic_device_init(isa_bus, gsi, &rtc_state, &floppy, false); 182 183 /* connect pm stuff to lpc */ 184 ich9_lpc_pm_init(lpc); 185 186 /* ahci and SATA device, for q35 1 ahci controller is built-in */ 187 ahci = pci_create_simple_multifunction(host_bus, 188 PCI_DEVFN(ICH9_SATA1_DEV, 189 ICH9_SATA1_FUNC), 190 true, "ich9-ahci"); 191 idebus[0] = qdev_get_child_bus(&ahci->qdev, "ide.0"); 192 idebus[1] = qdev_get_child_bus(&ahci->qdev, "ide.1"); 193 194 if (usb_enabled(false)) { 195 /* Should we create 6 UHCI according to ich9 spec? */ 196 ehci_create_ich9_with_companions(host_bus, 0x1d); 197 } 198 199 /* TODO: Populate SPD eeprom data. */ 200 smbus_eeprom_init(ich9_smb_init(host_bus, 201 PCI_DEVFN(ICH9_SMB_DEV, ICH9_SMB_FUNC), 202 0xb100), 203 8, NULL, 0); 204 205 pc_cmos_init(below_4g_mem_size, above_4g_mem_size, boot_device, 206 floppy, idebus[0], idebus[1], rtc_state); 207 208 /* the rest devices to which pci devfn is automatically assigned */ 209 pc_vga_init(isa_bus, host_bus); 210 pc_nic_init(isa_bus, host_bus); 211 if (pci_enabled) { 212 pc_pci_device_init(host_bus); 213 } 214 215 if (has_pvpanic) { 216 pvpanic_init(isa_bus); 217 } 218 } 219 220 static void pc_q35_init_1_5(QEMUMachineInitArgs *args) 221 { 222 has_pci_info = false; 223 pc_q35_init(args); 224 } 225 226 static void pc_q35_init_1_4(QEMUMachineInitArgs *args) 227 { 228 has_pvpanic = false; 229 x86_cpu_compat_set_features("n270", FEAT_1_ECX, 0, CPUID_EXT_MOVBE); 230 pc_q35_init_1_5(args); 231 } 232 233 static QEMUMachine pc_q35_machine_v1_6 = { 234 .name = "pc-q35-1.6", 235 .alias = "q35", 236 .desc = "Standard PC (Q35 + ICH9, 2009)", 237 .init = pc_q35_init, 238 .hot_add_cpu = pc_hot_add_cpu, 239 .max_cpus = 255, 240 DEFAULT_MACHINE_OPTIONS, 241 }; 242 243 static QEMUMachine pc_q35_machine_v1_5 = { 244 .name = "pc-q35-1.5", 245 .desc = "Standard PC (Q35 + ICH9, 2009)", 246 .init = pc_q35_init_1_5, 247 .hot_add_cpu = pc_hot_add_cpu, 248 .max_cpus = 255, 249 .compat_props = (GlobalProperty[]) { 250 PC_COMPAT_1_5, 251 { /* end of list */ } 252 }, 253 DEFAULT_MACHINE_OPTIONS, 254 }; 255 256 static QEMUMachine pc_q35_machine_v1_4 = { 257 .name = "pc-q35-1.4", 258 .desc = "Standard PC (Q35 + ICH9, 2009)", 259 .init = pc_q35_init_1_4, 260 .max_cpus = 255, 261 .compat_props = (GlobalProperty[]) { 262 PC_COMPAT_1_4, 263 { /* end of list */ } 264 }, 265 DEFAULT_MACHINE_OPTIONS, 266 }; 267 268 static void pc_q35_machine_init(void) 269 { 270 qemu_register_machine(&pc_q35_machine_v1_6); 271 qemu_register_machine(&pc_q35_machine_v1_5); 272 qemu_register_machine(&pc_q35_machine_v1_4); 273 } 274 275 machine_init(pc_q35_machine_init); 276