2 * Q35 chipset based pc system emulator
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>
10 * This is based on pc.c, but heavily modified.
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:
19 * The above copyright notice and this permission notice shall be included in
20 * all copies or substantial portions of the Software.
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
31 #include "hw/loader.h"
32 #include "sysemu/arch_init.h"
33 #include "hw/i2c/smbus.h"
34 #include "hw/boards.h"
35 #include "hw/timer/mc146818rtc.h"
36 #include "hw/xen/xen.h"
37 #include "sysemu/kvm.h"
38 #include "hw/kvm/clock.h"
39 #include "hw/pci-host/q35.h"
40 #include "exec/address-spaces.h"
41 #include "hw/i386/ich9.h"
42 #include "hw/i386/smbios.h"
43 #include "hw/ide/pci.h"
44 #include "hw/ide/ahci.h"
46 #include "hw/cpu/icc_bus.h"
47 #include "qemu/error-report.h"
49 /* ICH9 AHCI has 6 ports */
50 #define MAX_SATA_PORTS 6
52 static bool has_pci_info;
53 static bool has_acpi_build = true;
54 static bool smbios_defaults = true;
55 static bool smbios_legacy_mode;
56 /* Make sure that guest addresses aligned at 1Gbyte boundaries get mapped to
57 * host addresses aligned at 1Gbyte boundaries. This way we can use 1GByte
60 static bool gigabyte_align = true;
61 static bool has_reserved_memory = true;
63 /* PC hardware initialisation */
64 static void pc_q35_init(MachineState *machine)
66 PCMachineState *pc_machine = PC_MACHINE(machine);
67 ram_addr_t below_4g_mem_size, above_4g_mem_size;
72 BusState *idebus[MAX_SATA_PORTS];
75 MemoryRegion *pci_memory;
76 MemoryRegion *rom_memory;
77 MemoryRegion *ram_memory;
85 ICH9LPCState *ich9_lpc;
87 DeviceState *icc_bridge;
88 PcGuestInfo *guest_info;
91 /* Check whether RAM fits below 4G (leaving 1/2 GByte for IO memory
92 * and 256 Mbytes for PCI Express Enhanced Configuration Access Mapping
93 * also known as MMCFG).
94 * If it doesn't, we need to split it in chunks below and above 4G.
95 * In any case, try to make sure that guest addresses aligned at
96 * 1G boundaries get mapped to host addresses aligned at 1G boundaries.
97 * For old machine types, use whatever split we used historically to avoid
100 if (machine->ram_size >= 0xb0000000) {
101 lowmem = gigabyte_align ? 0x80000000 : 0xb0000000;
106 /* Handle the machine opt max-ram-below-4g. It is basically doing
107 * min(qemu limit, user limit).
109 if (lowmem > pc_machine->max_ram_below_4g) {
110 lowmem = pc_machine->max_ram_below_4g;
111 if (machine->ram_size - lowmem > lowmem &&
112 lowmem & ((1ULL << 30) - 1)) {
113 error_report("Warning: Large machine and max_ram_below_4g(%"PRIu64
114 ") not a multiple of 1G; possible bad performance.",
115 pc_machine->max_ram_below_4g);
119 if (machine->ram_size >= lowmem) {
120 above_4g_mem_size = machine->ram_size - lowmem;
121 below_4g_mem_size = lowmem;
123 above_4g_mem_size = 0;
124 below_4g_mem_size = machine->ram_size;
127 if (xen_enabled() && xen_hvm_init(&below_4g_mem_size, &above_4g_mem_size,
129 fprintf(stderr, "xen hardware virtual machine initialisation failed\n");
133 icc_bridge = qdev_create(NULL, TYPE_ICC_BRIDGE);
134 object_property_add_child(qdev_get_machine(), "icc-bridge",
135 OBJECT(icc_bridge), NULL);
137 pc_cpus_init(machine->cpu_model, icc_bridge);
138 pc_acpi_init("q35-acpi-dsdt.aml");
144 pci_memory = g_new(MemoryRegion, 1);
145 memory_region_init(pci_memory, NULL, "pci", UINT64_MAX);
146 rom_memory = pci_memory;
149 rom_memory = get_system_memory();
152 guest_info = pc_guest_info_init(below_4g_mem_size, above_4g_mem_size);
153 guest_info->has_pci_info = has_pci_info;
154 guest_info->isapc_ram_fw = false;
155 guest_info->has_acpi_build = has_acpi_build;
156 guest_info->has_reserved_memory = has_reserved_memory;
158 /* Migration was not supported in 2.0 for Q35, so do not bother
159 * with this hack (see hw/i386/acpi-build.c).
161 guest_info->legacy_acpi_table_size = 0;
163 if (smbios_defaults) {
164 MachineClass *mc = MACHINE_GET_CLASS(machine);
165 /* These values are guest ABI, do not change */
166 smbios_set_defaults("QEMU", "Standard PC (Q35 + ICH9, 2009)",
167 mc->name, smbios_legacy_mode);
170 /* allocate ram and load rom/bios */
171 if (!xen_enabled()) {
172 pc_memory_init(machine, get_system_memory(),
173 below_4g_mem_size, above_4g_mem_size,
174 rom_memory, &ram_memory, guest_info);
178 gsi_state = g_malloc0(sizeof(*gsi_state));
179 if (kvm_irqchip_in_kernel()) {
180 kvm_pc_setup_irq_routing(pci_enabled);
181 gsi = qemu_allocate_irqs(kvm_pc_gsi_handler, gsi_state,
184 gsi = qemu_allocate_irqs(gsi_handler, gsi_state, GSI_NUM_PINS);
187 /* create pci host bus */
188 q35_host = Q35_HOST_DEVICE(qdev_create(NULL, TYPE_Q35_HOST_DEVICE));
190 object_property_add_child(qdev_get_machine(), "q35", OBJECT(q35_host), NULL);
191 q35_host->mch.ram_memory = ram_memory;
192 q35_host->mch.pci_address_space = pci_memory;
193 q35_host->mch.system_memory = get_system_memory();
194 q35_host->mch.address_space_io = get_system_io();
195 q35_host->mch.below_4g_mem_size = below_4g_mem_size;
196 q35_host->mch.above_4g_mem_size = above_4g_mem_size;
197 q35_host->mch.guest_info = guest_info;
199 qdev_init_nofail(DEVICE(q35_host));
200 phb = PCI_HOST_BRIDGE(q35_host);
203 lpc = pci_create_simple_multifunction(host_bus, PCI_DEVFN(ICH9_LPC_DEV,
204 ICH9_LPC_FUNC), true,
205 TYPE_ICH9_LPC_DEVICE);
207 object_property_add_link(OBJECT(machine), PC_MACHINE_ACPI_DEVICE_PROP,
208 TYPE_HOTPLUG_HANDLER,
209 (Object **)&pc_machine->acpi_dev,
210 object_property_allow_set_link,
211 OBJ_PROP_LINK_UNREF_ON_RELEASE, &error_abort);
212 object_property_set_link(OBJECT(machine), OBJECT(lpc),
213 PC_MACHINE_ACPI_DEVICE_PROP, &error_abort);
215 ich9_lpc = ICH9_LPC_DEVICE(lpc);
217 ich9_lpc->ioapic = gsi_state->ioapic_irq;
218 pci_bus_irqs(host_bus, ich9_lpc_set_irq, ich9_lpc_map_irq, ich9_lpc,
220 pci_bus_set_route_irq_fn(host_bus, ich9_route_intx_pin_to_irq);
221 isa_bus = ich9_lpc->isa_bus;
224 isa_bus_irqs(isa_bus, gsi);
226 if (kvm_irqchip_in_kernel()) {
227 i8259 = kvm_i8259_init(isa_bus);
228 } else if (xen_enabled()) {
229 i8259 = xen_interrupt_controller_init();
231 cpu_irq = pc_allocate_cpu_irq();
232 i8259 = i8259_init(isa_bus, cpu_irq[0]);
235 for (i = 0; i < ISA_NUM_IRQS; i++) {
236 gsi_state->i8259_irq[i] = i8259[i];
239 ioapic_init_gsi(gsi_state, NULL);
241 qdev_init_nofail(icc_bridge);
243 pc_register_ferr_irq(gsi[13]);
245 /* init basic PC hardware */
246 pc_basic_device_init(isa_bus, gsi, &rtc_state, &floppy, false, 0xff0104);
248 /* connect pm stuff to lpc */
249 ich9_lpc_pm_init(lpc);
251 /* ahci and SATA device, for q35 1 ahci controller is built-in */
252 ahci = pci_create_simple_multifunction(host_bus,
253 PCI_DEVFN(ICH9_SATA1_DEV,
256 idebus[0] = qdev_get_child_bus(&ahci->qdev, "ide.0");
257 idebus[1] = qdev_get_child_bus(&ahci->qdev, "ide.1");
259 if (usb_enabled(false)) {
260 /* Should we create 6 UHCI according to ich9 spec? */
261 ehci_create_ich9_with_companions(host_bus, 0x1d);
264 /* TODO: Populate SPD eeprom data. */
265 smbus_eeprom_init(ich9_smb_init(host_bus,
266 PCI_DEVFN(ICH9_SMB_DEV, ICH9_SMB_FUNC),
270 pc_cmos_init(below_4g_mem_size, above_4g_mem_size, machine->boot_order,
271 floppy, idebus[0], idebus[1], rtc_state);
273 /* the rest devices to which pci devfn is automatically assigned */
274 pc_vga_init(isa_bus, host_bus);
275 pc_nic_init(isa_bus, host_bus);
277 pc_pci_device_init(host_bus);
281 static void pc_compat_2_0(MachineState *machine)
283 smbios_legacy_mode = true;
284 has_reserved_memory = false;
287 static void pc_compat_1_7(MachineState *machine)
289 pc_compat_2_0(machine);
290 smbios_defaults = false;
291 gigabyte_align = false;
292 option_rom_has_mr = true;
293 x86_cpu_compat_disable_kvm_features(FEAT_1_ECX, CPUID_EXT_X2APIC);
296 static void pc_compat_1_6(MachineState *machine)
298 pc_compat_1_7(machine);
299 has_pci_info = false;
300 rom_file_has_mr = false;
301 has_acpi_build = false;
304 static void pc_compat_1_5(MachineState *machine)
306 pc_compat_1_6(machine);
309 static void pc_compat_1_4(MachineState *machine)
311 pc_compat_1_5(machine);
312 x86_cpu_compat_set_features("n270", FEAT_1_ECX, 0, CPUID_EXT_MOVBE);
313 x86_cpu_compat_set_features("Westmere", FEAT_1_ECX, 0, CPUID_EXT_PCLMULQDQ);
316 static void pc_q35_init_2_0(MachineState *machine)
318 pc_compat_2_0(machine);
319 pc_q35_init(machine);
322 static void pc_q35_init_1_7(MachineState *machine)
324 pc_compat_1_7(machine);
325 pc_q35_init(machine);
328 static void pc_q35_init_1_6(MachineState *machine)
330 pc_compat_1_6(machine);
331 pc_q35_init(machine);
334 static void pc_q35_init_1_5(MachineState *machine)
336 pc_compat_1_5(machine);
337 pc_q35_init(machine);
340 static void pc_q35_init_1_4(MachineState *machine)
342 pc_compat_1_4(machine);
343 pc_q35_init(machine);
346 #define PC_Q35_MACHINE_OPTIONS \
347 PC_DEFAULT_MACHINE_OPTIONS, \
348 .desc = "Standard PC (Q35 + ICH9, 2009)", \
349 .hot_add_cpu = pc_hot_add_cpu
351 #define PC_Q35_2_1_MACHINE_OPTIONS \
352 PC_Q35_MACHINE_OPTIONS, \
353 .default_machine_opts = "firmware=bios-256k.bin"
355 static QEMUMachine pc_q35_machine_v2_1 = {
356 PC_Q35_2_1_MACHINE_OPTIONS,
357 .name = "pc-q35-2.1",
362 #define PC_Q35_2_0_MACHINE_OPTIONS PC_Q35_2_1_MACHINE_OPTIONS
364 static QEMUMachine pc_q35_machine_v2_0 = {
365 PC_Q35_2_0_MACHINE_OPTIONS,
366 .name = "pc-q35-2.0",
367 .init = pc_q35_init_2_0,
368 .compat_props = (GlobalProperty[]) {
370 { /* end of list */ }
374 #define PC_Q35_1_7_MACHINE_OPTIONS PC_Q35_MACHINE_OPTIONS
376 static QEMUMachine pc_q35_machine_v1_7 = {
377 PC_Q35_1_7_MACHINE_OPTIONS,
378 .name = "pc-q35-1.7",
379 .init = pc_q35_init_1_7,
380 .compat_props = (GlobalProperty[]) {
382 { /* end of list */ }
386 #define PC_Q35_1_6_MACHINE_OPTIONS PC_Q35_MACHINE_OPTIONS
388 static QEMUMachine pc_q35_machine_v1_6 = {
389 PC_Q35_1_6_MACHINE_OPTIONS,
390 .name = "pc-q35-1.6",
391 .init = pc_q35_init_1_6,
392 .compat_props = (GlobalProperty[]) {
394 { /* end of list */ }
398 static QEMUMachine pc_q35_machine_v1_5 = {
399 PC_Q35_1_6_MACHINE_OPTIONS,
400 .name = "pc-q35-1.5",
401 .init = pc_q35_init_1_5,
402 .compat_props = (GlobalProperty[]) {
404 { /* end of list */ }
408 #define PC_Q35_1_4_MACHINE_OPTIONS \
409 PC_Q35_1_6_MACHINE_OPTIONS, \
412 static QEMUMachine pc_q35_machine_v1_4 = {
413 PC_Q35_1_4_MACHINE_OPTIONS,
414 .name = "pc-q35-1.4",
415 .init = pc_q35_init_1_4,
416 .compat_props = (GlobalProperty[]) {
418 { /* end of list */ }
422 static void pc_q35_machine_init(void)
424 qemu_register_pc_machine(&pc_q35_machine_v2_1);
425 qemu_register_pc_machine(&pc_q35_machine_v2_0);
426 qemu_register_pc_machine(&pc_q35_machine_v1_7);
427 qemu_register_pc_machine(&pc_q35_machine_v1_6);
428 qemu_register_pc_machine(&pc_q35_machine_v1_5);
429 qemu_register_pc_machine(&pc_q35_machine_v1_4);
432 machine_init(pc_q35_machine_init);