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 51 /* PC hardware initialisation */ 52 static void pc_q35_init(QEMUMachineInitArgs *args) 53 { 54 ram_addr_t ram_size = args->ram_size; 55 const char *cpu_model = args->cpu_model; 56 const char *kernel_filename = args->kernel_filename; 57 const char *kernel_cmdline = args->kernel_cmdline; 58 const char *initrd_filename = args->initrd_filename; 59 const char *boot_device = args->boot_device; 60 ram_addr_t below_4g_mem_size, above_4g_mem_size; 61 Q35PCIHost *q35_host; 62 PCIBus *host_bus; 63 PCIDevice *lpc; 64 BusState *idebus[MAX_SATA_PORTS]; 65 ISADevice *rtc_state; 66 ISADevice *floppy; 67 MemoryRegion *pci_memory; 68 MemoryRegion *rom_memory; 69 MemoryRegion *ram_memory; 70 GSIState *gsi_state; 71 ISABus *isa_bus; 72 int pci_enabled = 1; 73 qemu_irq *cpu_irq; 74 qemu_irq *gsi; 75 qemu_irq *i8259; 76 int i; 77 ICH9LPCState *ich9_lpc; 78 PCIDevice *ahci; 79 DeviceState *icc_bridge; 80 81 icc_bridge = qdev_create(NULL, TYPE_ICC_BRIDGE); 82 object_property_add_child(qdev_get_machine(), "icc-bridge", 83 OBJECT(icc_bridge), NULL); 84 85 pc_cpus_init(cpu_model, icc_bridge); 86 pc_acpi_init("q35-acpi-dsdt.aml"); 87 88 kvmclock_create(); 89 90 if (ram_size >= 0xb0000000) { 91 above_4g_mem_size = ram_size - 0xb0000000; 92 below_4g_mem_size = 0xb0000000; 93 } else { 94 above_4g_mem_size = 0; 95 below_4g_mem_size = ram_size; 96 } 97 98 /* pci enabled */ 99 if (pci_enabled) { 100 pci_memory = g_new(MemoryRegion, 1); 101 memory_region_init(pci_memory, "pci", INT64_MAX); 102 rom_memory = pci_memory; 103 } else { 104 pci_memory = NULL; 105 rom_memory = get_system_memory(); 106 } 107 108 /* allocate ram and load rom/bios */ 109 if (!xen_enabled()) { 110 pc_memory_init(get_system_memory(), kernel_filename, kernel_cmdline, 111 initrd_filename, below_4g_mem_size, above_4g_mem_size, 112 rom_memory, &ram_memory); 113 } 114 115 /* irq lines */ 116 gsi_state = g_malloc0(sizeof(*gsi_state)); 117 if (kvm_irqchip_in_kernel()) { 118 kvm_pc_setup_irq_routing(pci_enabled); 119 gsi = qemu_allocate_irqs(kvm_pc_gsi_handler, gsi_state, 120 GSI_NUM_PINS); 121 } else { 122 gsi = qemu_allocate_irqs(gsi_handler, gsi_state, GSI_NUM_PINS); 123 } 124 125 /* create pci host bus */ 126 q35_host = Q35_HOST_DEVICE(qdev_create(NULL, TYPE_Q35_HOST_DEVICE)); 127 128 q35_host->mch.ram_memory = ram_memory; 129 q35_host->mch.pci_address_space = pci_memory; 130 q35_host->mch.system_memory = get_system_memory(); 131 q35_host->mch.address_space_io = get_system_io(); 132 q35_host->mch.below_4g_mem_size = below_4g_mem_size; 133 q35_host->mch.above_4g_mem_size = above_4g_mem_size; 134 /* pci */ 135 qdev_init_nofail(DEVICE(q35_host)); 136 host_bus = q35_host->host.pci.bus; 137 /* create ISA bus */ 138 lpc = pci_create_simple_multifunction(host_bus, PCI_DEVFN(ICH9_LPC_DEV, 139 ICH9_LPC_FUNC), true, 140 TYPE_ICH9_LPC_DEVICE); 141 ich9_lpc = ICH9_LPC_DEVICE(lpc); 142 ich9_lpc->pic = gsi; 143 ich9_lpc->ioapic = gsi_state->ioapic_irq; 144 pci_bus_irqs(host_bus, ich9_lpc_set_irq, ich9_lpc_map_irq, ich9_lpc, 145 ICH9_LPC_NB_PIRQS); 146 pci_bus_set_route_irq_fn(host_bus, ich9_route_intx_pin_to_irq); 147 isa_bus = ich9_lpc->isa_bus; 148 149 /*end early*/ 150 isa_bus_irqs(isa_bus, gsi); 151 152 if (kvm_irqchip_in_kernel()) { 153 i8259 = kvm_i8259_init(isa_bus); 154 } else if (xen_enabled()) { 155 i8259 = xen_interrupt_controller_init(); 156 } else { 157 cpu_irq = pc_allocate_cpu_irq(); 158 i8259 = i8259_init(isa_bus, cpu_irq[0]); 159 } 160 161 for (i = 0; i < ISA_NUM_IRQS; i++) { 162 gsi_state->i8259_irq[i] = i8259[i]; 163 } 164 if (pci_enabled) { 165 ioapic_init_gsi(gsi_state, NULL); 166 } 167 qdev_init_nofail(icc_bridge); 168 169 pc_register_ferr_irq(gsi[13]); 170 171 /* init basic PC hardware */ 172 pc_basic_device_init(isa_bus, gsi, &rtc_state, &floppy, false); 173 174 /* connect pm stuff to lpc */ 175 ich9_lpc_pm_init(lpc); 176 177 /* ahci and SATA device, for q35 1 ahci controller is built-in */ 178 ahci = pci_create_simple_multifunction(host_bus, 179 PCI_DEVFN(ICH9_SATA1_DEV, 180 ICH9_SATA1_FUNC), 181 true, "ich9-ahci"); 182 idebus[0] = qdev_get_child_bus(&ahci->qdev, "ide.0"); 183 idebus[1] = qdev_get_child_bus(&ahci->qdev, "ide.1"); 184 185 if (usb_enabled(false)) { 186 /* Should we create 6 UHCI according to ich9 spec? */ 187 ehci_create_ich9_with_companions(host_bus, 0x1d); 188 } 189 190 /* TODO: Populate SPD eeprom data. */ 191 smbus_eeprom_init(ich9_smb_init(host_bus, 192 PCI_DEVFN(ICH9_SMB_DEV, ICH9_SMB_FUNC), 193 0xb100), 194 8, NULL, 0); 195 196 pc_cmos_init(below_4g_mem_size, above_4g_mem_size, boot_device, 197 floppy, idebus[0], idebus[1], rtc_state); 198 199 /* the rest devices to which pci devfn is automatically assigned */ 200 pc_vga_init(isa_bus, host_bus); 201 pc_nic_init(isa_bus, host_bus); 202 if (pci_enabled) { 203 pc_pci_device_init(host_bus); 204 } 205 206 if (has_pvpanic) { 207 pvpanic_init(isa_bus); 208 } 209 } 210 211 static void pc_q35_init_1_4(QEMUMachineInitArgs *args) 212 { 213 has_pvpanic = false; 214 x86_cpu_compat_set_features("n270", FEAT_1_ECX, 0, CPUID_EXT_MOVBE); 215 pc_q35_init(args); 216 } 217 218 static QEMUMachine pc_q35_machine_v1_5 = { 219 .name = "pc-q35-1.5", 220 .alias = "q35", 221 .desc = "Standard PC (Q35 + ICH9, 2009)", 222 .init = pc_q35_init, 223 .hot_add_cpu = pc_hot_add_cpu, 224 .max_cpus = 255, 225 DEFAULT_MACHINE_OPTIONS, 226 }; 227 228 static QEMUMachine pc_q35_machine_v1_4 = { 229 .name = "pc-q35-1.4", 230 .desc = "Standard PC (Q35 + ICH9, 2009)", 231 .init = pc_q35_init_1_4, 232 .max_cpus = 255, 233 .compat_props = (GlobalProperty[]) { 234 PC_COMPAT_1_4, 235 { /* end of list */ } 236 }, 237 DEFAULT_MACHINE_OPTIONS, 238 }; 239 240 static void pc_q35_machine_init(void) 241 { 242 qemu_register_machine(&pc_q35_machine_v1_5); 243 qemu_register_machine(&pc_q35_machine_v1_4); 244 } 245 246 machine_init(pc_q35_machine_init); 247