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/smbus.h" 33 #include "hw/boards.h" 34 #include "hw/mc146818rtc.h" 35 #include "hw/xen.h" 36 #include "sysemu/kvm.h" 37 #include "hw/kvm/clock.h" 38 #include "hw/q35.h" 39 #include "exec/address-spaces.h" 40 #include "hw/ich9.h" 41 #include "hw/ide/pci.h" 42 #include "hw/ide/ahci.h" 43 #include "hw/usb.h" 44 45 /* ICH9 AHCI has 6 ports */ 46 #define MAX_SATA_PORTS 6 47 48 /* set CMOS shutdown status register (index 0xF) as S3_resume(0xFE) 49 * BIOS will read it and start S3 resume at POST Entry */ 50 static void pc_cmos_set_s3_resume(void *opaque, int irq, int level) 51 { 52 ISADevice *s = opaque; 53 54 if (level) { 55 rtc_set_memory(s, 0xF, 0xFE); 56 } 57 } 58 59 /* PC hardware initialisation */ 60 static void pc_q35_init(QEMUMachineInitArgs *args) 61 { 62 ram_addr_t ram_size = args->ram_size; 63 const char *cpu_model = args->cpu_model; 64 const char *kernel_filename = args->kernel_filename; 65 const char *kernel_cmdline = args->kernel_cmdline; 66 const char *initrd_filename = args->initrd_filename; 67 const char *boot_device = args->boot_device; 68 ram_addr_t below_4g_mem_size, above_4g_mem_size; 69 Q35PCIHost *q35_host; 70 PCIBus *host_bus; 71 PCIDevice *lpc; 72 BusState *idebus[MAX_SATA_PORTS]; 73 ISADevice *rtc_state; 74 ISADevice *floppy; 75 MemoryRegion *pci_memory; 76 MemoryRegion *rom_memory; 77 MemoryRegion *ram_memory; 78 GSIState *gsi_state; 79 ISABus *isa_bus; 80 int pci_enabled = 1; 81 qemu_irq *cpu_irq; 82 qemu_irq *gsi; 83 qemu_irq *i8259; 84 int i; 85 ICH9LPCState *ich9_lpc; 86 PCIDevice *ahci; 87 qemu_irq *cmos_s3; 88 89 pc_cpus_init(cpu_model); 90 pc_acpi_init("q35-acpi-dsdt.aml"); 91 92 kvmclock_create(); 93 94 if (ram_size >= 0xb0000000) { 95 above_4g_mem_size = ram_size - 0xb0000000; 96 below_4g_mem_size = 0xb0000000; 97 } else { 98 above_4g_mem_size = 0; 99 below_4g_mem_size = ram_size; 100 } 101 102 /* pci enabled */ 103 if (pci_enabled) { 104 pci_memory = g_new(MemoryRegion, 1); 105 memory_region_init(pci_memory, "pci", INT64_MAX); 106 rom_memory = pci_memory; 107 } else { 108 pci_memory = NULL; 109 rom_memory = get_system_memory(); 110 } 111 112 /* allocate ram and load rom/bios */ 113 if (!xen_enabled()) { 114 pc_memory_init(get_system_memory(), kernel_filename, kernel_cmdline, 115 initrd_filename, below_4g_mem_size, above_4g_mem_size, 116 rom_memory, &ram_memory); 117 } 118 119 /* irq lines */ 120 gsi_state = g_malloc0(sizeof(*gsi_state)); 121 if (kvm_irqchip_in_kernel()) { 122 kvm_pc_setup_irq_routing(pci_enabled); 123 gsi = qemu_allocate_irqs(kvm_pc_gsi_handler, gsi_state, 124 GSI_NUM_PINS); 125 } else { 126 gsi = qemu_allocate_irqs(gsi_handler, gsi_state, GSI_NUM_PINS); 127 } 128 129 /* create pci host bus */ 130 q35_host = Q35_HOST_DEVICE(qdev_create(NULL, TYPE_Q35_HOST_DEVICE)); 131 132 q35_host->mch.ram_memory = ram_memory; 133 q35_host->mch.pci_address_space = pci_memory; 134 q35_host->mch.system_memory = get_system_memory(); 135 q35_host->mch.address_space_io = get_system_io();; 136 q35_host->mch.below_4g_mem_size = below_4g_mem_size; 137 q35_host->mch.above_4g_mem_size = above_4g_mem_size; 138 /* pci */ 139 qdev_init_nofail(DEVICE(q35_host)); 140 host_bus = q35_host->host.pci.bus; 141 /* create ISA bus */ 142 lpc = pci_create_simple_multifunction(host_bus, PCI_DEVFN(ICH9_LPC_DEV, 143 ICH9_LPC_FUNC), true, 144 TYPE_ICH9_LPC_DEVICE); 145 ich9_lpc = ICH9_LPC_DEVICE(lpc); 146 ich9_lpc->pic = gsi; 147 ich9_lpc->ioapic = gsi_state->ioapic_irq; 148 pci_bus_irqs(host_bus, ich9_lpc_set_irq, ich9_lpc_map_irq, ich9_lpc, 149 ICH9_LPC_NB_PIRQS); 150 pci_bus_set_route_irq_fn(host_bus, ich9_route_intx_pin_to_irq); 151 isa_bus = ich9_lpc->isa_bus; 152 153 /*end early*/ 154 isa_bus_irqs(isa_bus, gsi); 155 156 if (kvm_irqchip_in_kernel()) { 157 i8259 = kvm_i8259_init(isa_bus); 158 } else if (xen_enabled()) { 159 i8259 = xen_interrupt_controller_init(); 160 } else { 161 cpu_irq = pc_allocate_cpu_irq(); 162 i8259 = i8259_init(isa_bus, cpu_irq[0]); 163 } 164 165 for (i = 0; i < ISA_NUM_IRQS; i++) { 166 gsi_state->i8259_irq[i] = i8259[i]; 167 } 168 if (pci_enabled) { 169 ioapic_init_gsi(gsi_state, NULL); 170 } 171 172 pc_register_ferr_irq(gsi[13]); 173 174 /* init basic PC hardware */ 175 pc_basic_device_init(isa_bus, gsi, &rtc_state, &floppy, false); 176 177 /* connect pm stuff to lpc */ 178 cmos_s3 = qemu_allocate_irqs(pc_cmos_set_s3_resume, rtc_state, 1); 179 ich9_lpc_pm_init(lpc, *cmos_s3); 180 181 /* ahci and SATA device, for q35 1 ahci controller is built-in */ 182 ahci = pci_create_simple_multifunction(host_bus, 183 PCI_DEVFN(ICH9_SATA1_DEV, 184 ICH9_SATA1_FUNC), 185 true, "ich9-ahci"); 186 idebus[0] = qdev_get_child_bus(&ahci->qdev, "ide.0"); 187 idebus[1] = qdev_get_child_bus(&ahci->qdev, "ide.1"); 188 189 if (usb_enabled(false)) { 190 /* Should we create 6 UHCI according to ich9 spec? */ 191 ehci_create_ich9_with_companions(host_bus, 0x1d); 192 } 193 194 /* TODO: Populate SPD eeprom data. */ 195 smbus_eeprom_init(ich9_smb_init(host_bus, 196 PCI_DEVFN(ICH9_SMB_DEV, ICH9_SMB_FUNC), 197 0xb100), 198 8, NULL, 0); 199 200 pc_cmos_init(below_4g_mem_size, above_4g_mem_size, boot_device, 201 floppy, idebus[0], idebus[1], rtc_state); 202 203 /* the rest devices to which pci devfn is automatically assigned */ 204 pc_vga_init(isa_bus, host_bus); 205 audio_init(isa_bus, host_bus); 206 pc_nic_init(isa_bus, host_bus); 207 if (pci_enabled) { 208 pc_pci_device_init(host_bus); 209 } 210 } 211 212 static QEMUMachine pc_q35_machine_v1_5 = { 213 .name = "pc-q35-1.5", 214 .alias = "q35", 215 .desc = "Standard PC (Q35 + ICH9, 2009)", 216 .init = pc_q35_init, 217 .max_cpus = 255, 218 DEFAULT_MACHINE_OPTIONS, 219 }; 220 221 static QEMUMachine pc_q35_machine_v1_4 = { 222 .name = "pc-q35-1.4", 223 .desc = "Standard PC (Q35 + ICH9, 2009)", 224 .init = pc_q35_init, 225 .max_cpus = 255, 226 .compat_props = (GlobalProperty[]) { 227 PC_COMPAT_1_4, 228 { /* end of list */ } 229 }, 230 DEFAULT_MACHINE_OPTIONS, 231 }; 232 233 static void pc_q35_machine_init(void) 234 { 235 qemu_register_machine(&pc_q35_machine_v1_5); 236 qemu_register_machine(&pc_q35_machine_v1_4); 237 } 238 239 machine_init(pc_q35_machine_init); 240