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_acpi_build
= true;
53 static bool rsdp_in_ram
= true;
54 static bool smbios_defaults
= true;
55 static bool smbios_legacy_mode
;
56 static bool smbios_uuid_encoded
= true;
57 /* Make sure that guest addresses aligned at 1Gbyte boundaries get mapped to
58 * host addresses aligned at 1Gbyte boundaries. This way we can use 1GByte
61 static bool gigabyte_align
= true;
62 static bool has_reserved_memory
= true;
64 /* PC hardware initialisation */
65 static void pc_q35_init(MachineState
*machine
)
67 PCMachineState
*pc_machine
= PC_MACHINE(machine
);
68 ram_addr_t below_4g_mem_size
, above_4g_mem_size
;
73 BusState
*idebus
[MAX_SATA_PORTS
];
76 MemoryRegion
*pci_memory
;
77 MemoryRegion
*rom_memory
;
78 MemoryRegion
*ram_memory
;
86 ICH9LPCState
*ich9_lpc
;
88 DeviceState
*icc_bridge
;
89 PcGuestInfo
*guest_info
;
91 DriveInfo
*hd
[MAX_SATA_PORTS
];
92 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
94 /* Check whether RAM fits below 4G (leaving 1/2 GByte for IO memory
95 * and 256 Mbytes for PCI Express Enhanced Configuration Access Mapping
96 * also known as MMCFG).
97 * If it doesn't, we need to split it in chunks below and above 4G.
98 * In any case, try to make sure that guest addresses aligned at
99 * 1G boundaries get mapped to host addresses aligned at 1G boundaries.
100 * For old machine types, use whatever split we used historically to avoid
101 * breaking migration.
103 if (machine
->ram_size
>= 0xb0000000) {
104 lowmem
= gigabyte_align
? 0x80000000 : 0xb0000000;
109 /* Handle the machine opt max-ram-below-4g. It is basically doing
110 * min(qemu limit, user limit).
112 if (lowmem
> pc_machine
->max_ram_below_4g
) {
113 lowmem
= pc_machine
->max_ram_below_4g
;
114 if (machine
->ram_size
- lowmem
> lowmem
&&
115 lowmem
& ((1ULL << 30) - 1)) {
116 error_report("Warning: Large machine and max_ram_below_4g(%"PRIu64
117 ") not a multiple of 1G; possible bad performance.",
118 pc_machine
->max_ram_below_4g
);
122 if (machine
->ram_size
>= lowmem
) {
123 above_4g_mem_size
= machine
->ram_size
- lowmem
;
124 below_4g_mem_size
= lowmem
;
126 above_4g_mem_size
= 0;
127 below_4g_mem_size
= machine
->ram_size
;
130 if (xen_enabled() && xen_hvm_init(&below_4g_mem_size
, &above_4g_mem_size
,
132 fprintf(stderr
, "xen hardware virtual machine initialisation failed\n");
136 icc_bridge
= qdev_create(NULL
, TYPE_ICC_BRIDGE
);
137 object_property_add_child(qdev_get_machine(), "icc-bridge",
138 OBJECT(icc_bridge
), NULL
);
140 pc_cpus_init(machine
->cpu_model
, icc_bridge
);
141 pc_acpi_init("q35-acpi-dsdt.aml");
147 pci_memory
= g_new(MemoryRegion
, 1);
148 memory_region_init(pci_memory
, NULL
, "pci", UINT64_MAX
);
149 rom_memory
= pci_memory
;
152 rom_memory
= get_system_memory();
155 guest_info
= pc_guest_info_init(below_4g_mem_size
, above_4g_mem_size
);
156 guest_info
->isapc_ram_fw
= false;
157 guest_info
->has_acpi_build
= has_acpi_build
;
158 guest_info
->has_reserved_memory
= has_reserved_memory
;
159 guest_info
->rsdp_in_ram
= rsdp_in_ram
;
161 /* Migration was not supported in 2.0 for Q35, so do not bother
162 * with this hack (see hw/i386/acpi-build.c).
164 guest_info
->legacy_acpi_table_size
= 0;
166 if (smbios_defaults
) {
167 /* These values are guest ABI, do not change */
168 smbios_set_defaults("QEMU", "Standard PC (Q35 + ICH9, 2009)",
169 mc
->name
, smbios_legacy_mode
, smbios_uuid_encoded
);
172 /* allocate ram and load rom/bios */
173 if (!xen_enabled()) {
174 pc_memory_init(machine
, get_system_memory(),
175 below_4g_mem_size
, above_4g_mem_size
,
176 rom_memory
, &ram_memory
, guest_info
);
180 gsi_state
= g_malloc0(sizeof(*gsi_state
));
181 if (kvm_irqchip_in_kernel()) {
182 kvm_pc_setup_irq_routing(pci_enabled
);
183 gsi
= qemu_allocate_irqs(kvm_pc_gsi_handler
, gsi_state
,
186 gsi
= qemu_allocate_irqs(gsi_handler
, gsi_state
, GSI_NUM_PINS
);
189 /* create pci host bus */
190 q35_host
= Q35_HOST_DEVICE(qdev_create(NULL
, TYPE_Q35_HOST_DEVICE
));
192 object_property_add_child(qdev_get_machine(), "q35", OBJECT(q35_host
), NULL
);
193 q35_host
->mch
.ram_memory
= ram_memory
;
194 q35_host
->mch
.pci_address_space
= pci_memory
;
195 q35_host
->mch
.system_memory
= get_system_memory();
196 q35_host
->mch
.address_space_io
= get_system_io();
197 q35_host
->mch
.below_4g_mem_size
= below_4g_mem_size
;
198 q35_host
->mch
.above_4g_mem_size
= above_4g_mem_size
;
199 q35_host
->mch
.guest_info
= guest_info
;
201 qdev_init_nofail(DEVICE(q35_host
));
202 phb
= PCI_HOST_BRIDGE(q35_host
);
205 lpc
= pci_create_simple_multifunction(host_bus
, PCI_DEVFN(ICH9_LPC_DEV
,
206 ICH9_LPC_FUNC
), true,
207 TYPE_ICH9_LPC_DEVICE
);
209 object_property_add_link(OBJECT(machine
), PC_MACHINE_ACPI_DEVICE_PROP
,
210 TYPE_HOTPLUG_HANDLER
,
211 (Object
**)&pc_machine
->acpi_dev
,
212 object_property_allow_set_link
,
213 OBJ_PROP_LINK_UNREF_ON_RELEASE
, &error_abort
);
214 object_property_set_link(OBJECT(machine
), OBJECT(lpc
),
215 PC_MACHINE_ACPI_DEVICE_PROP
, &error_abort
);
217 ich9_lpc
= ICH9_LPC_DEVICE(lpc
);
219 ich9_lpc
->ioapic
= gsi_state
->ioapic_irq
;
220 pci_bus_irqs(host_bus
, ich9_lpc_set_irq
, ich9_lpc_map_irq
, ich9_lpc
,
222 pci_bus_set_route_irq_fn(host_bus
, ich9_route_intx_pin_to_irq
);
223 isa_bus
= ich9_lpc
->isa_bus
;
226 isa_bus_irqs(isa_bus
, gsi
);
228 if (kvm_irqchip_in_kernel()) {
229 i8259
= kvm_i8259_init(isa_bus
);
230 } else if (xen_enabled()) {
231 i8259
= xen_interrupt_controller_init();
233 cpu_irq
= pc_allocate_cpu_irq();
234 i8259
= i8259_init(isa_bus
, cpu_irq
[0]);
237 for (i
= 0; i
< ISA_NUM_IRQS
; i
++) {
238 gsi_state
->i8259_irq
[i
] = i8259
[i
];
241 ioapic_init_gsi(gsi_state
, "q35");
243 qdev_init_nofail(icc_bridge
);
245 pc_register_ferr_irq(gsi
[13]);
247 assert(pc_machine
->vmport
!= ON_OFF_AUTO_MAX
);
248 if (pc_machine
->vmport
== ON_OFF_AUTO_AUTO
) {
249 pc_machine
->vmport
= xen_enabled() ? ON_OFF_AUTO_OFF
: ON_OFF_AUTO_ON
;
252 /* init basic PC hardware */
253 pc_basic_device_init(isa_bus
, gsi
, &rtc_state
, !mc
->no_floppy
, &floppy
,
254 (pc_machine
->vmport
!= ON_OFF_AUTO_ON
), 0xff0104);
256 /* connect pm stuff to lpc */
257 ich9_lpc_pm_init(lpc
);
259 /* ahci and SATA device, for q35 1 ahci controller is built-in */
260 ahci
= pci_create_simple_multifunction(host_bus
,
261 PCI_DEVFN(ICH9_SATA1_DEV
,
264 idebus
[0] = qdev_get_child_bus(&ahci
->qdev
, "ide.0");
265 idebus
[1] = qdev_get_child_bus(&ahci
->qdev
, "ide.1");
266 g_assert(MAX_SATA_PORTS
== ICH_AHCI(ahci
)->ahci
.ports
);
267 ide_drive_get(hd
, ICH_AHCI(ahci
)->ahci
.ports
);
268 ahci_ide_create_devs(ahci
, hd
);
271 /* Should we create 6 UHCI according to ich9 spec? */
272 ehci_create_ich9_with_companions(host_bus
, 0x1d);
275 /* TODO: Populate SPD eeprom data. */
276 smbus_eeprom_init(ich9_smb_init(host_bus
,
277 PCI_DEVFN(ICH9_SMB_DEV
, ICH9_SMB_FUNC
),
281 pc_cmos_init(below_4g_mem_size
, above_4g_mem_size
, machine
->boot_order
,
282 machine
, floppy
, idebus
[0], idebus
[1], rtc_state
);
284 /* the rest devices to which pci devfn is automatically assigned */
285 pc_vga_init(isa_bus
, host_bus
);
286 pc_nic_init(isa_bus
, host_bus
);
288 pc_pci_device_init(host_bus
);
292 static void pc_compat_2_3(MachineState
*machine
)
296 static void pc_compat_2_2(MachineState
*machine
)
298 pc_compat_2_3(machine
);
300 x86_cpu_compat_set_features("kvm64", FEAT_1_EDX
, 0, CPUID_VME
);
301 x86_cpu_compat_set_features("kvm32", FEAT_1_EDX
, 0, CPUID_VME
);
302 x86_cpu_compat_set_features("Conroe", FEAT_1_EDX
, 0, CPUID_VME
);
303 x86_cpu_compat_set_features("Penryn", FEAT_1_EDX
, 0, CPUID_VME
);
304 x86_cpu_compat_set_features("Nehalem", FEAT_1_EDX
, 0, CPUID_VME
);
305 x86_cpu_compat_set_features("Westmere", FEAT_1_EDX
, 0, CPUID_VME
);
306 x86_cpu_compat_set_features("SandyBridge", FEAT_1_EDX
, 0, CPUID_VME
);
307 x86_cpu_compat_set_features("Haswell", FEAT_1_EDX
, 0, CPUID_VME
);
308 x86_cpu_compat_set_features("Broadwell", FEAT_1_EDX
, 0, CPUID_VME
);
309 x86_cpu_compat_set_features("Opteron_G1", FEAT_1_EDX
, 0, CPUID_VME
);
310 x86_cpu_compat_set_features("Opteron_G2", FEAT_1_EDX
, 0, CPUID_VME
);
311 x86_cpu_compat_set_features("Opteron_G3", FEAT_1_EDX
, 0, CPUID_VME
);
312 x86_cpu_compat_set_features("Opteron_G4", FEAT_1_EDX
, 0, CPUID_VME
);
313 x86_cpu_compat_set_features("Opteron_G5", FEAT_1_EDX
, 0, CPUID_VME
);
314 x86_cpu_compat_set_features("Haswell", FEAT_1_ECX
, 0, CPUID_EXT_F16C
);
315 x86_cpu_compat_set_features("Haswell", FEAT_1_ECX
, 0, CPUID_EXT_RDRAND
);
316 x86_cpu_compat_set_features("Broadwell", FEAT_1_ECX
, 0, CPUID_EXT_F16C
);
317 x86_cpu_compat_set_features("Broadwell", FEAT_1_ECX
, 0, CPUID_EXT_RDRAND
);
318 machine
->suppress_vmdesc
= true;
321 static void pc_compat_2_1(MachineState
*machine
)
323 PCMachineState
*pcms
= PC_MACHINE(machine
);
325 pc_compat_2_2(machine
);
326 pcms
->enforce_aligned_dimm
= false;
327 smbios_uuid_encoded
= false;
328 x86_cpu_compat_set_features("coreduo", FEAT_1_ECX
, CPUID_EXT_VMX
, 0);
329 x86_cpu_compat_set_features("core2duo", FEAT_1_ECX
, CPUID_EXT_VMX
, 0);
330 x86_cpu_compat_kvm_no_autodisable(FEAT_8000_0001_ECX
, CPUID_EXT3_SVM
);
333 static void pc_compat_2_0(MachineState
*machine
)
335 pc_compat_2_1(machine
);
336 smbios_legacy_mode
= true;
337 has_reserved_memory
= false;
338 pc_set_legacy_acpi_data_size();
341 static void pc_compat_1_7(MachineState
*machine
)
343 pc_compat_2_0(machine
);
344 smbios_defaults
= false;
345 gigabyte_align
= false;
346 option_rom_has_mr
= true;
347 x86_cpu_compat_kvm_no_autoenable(FEAT_1_ECX
, CPUID_EXT_X2APIC
);
350 static void pc_compat_1_6(MachineState
*machine
)
352 pc_compat_1_7(machine
);
353 rom_file_has_mr
= false;
354 has_acpi_build
= false;
357 static void pc_compat_1_5(MachineState
*machine
)
359 pc_compat_1_6(machine
);
362 static void pc_compat_1_4(MachineState
*machine
)
364 pc_compat_1_5(machine
);
365 x86_cpu_compat_set_features("n270", FEAT_1_ECX
, 0, CPUID_EXT_MOVBE
);
366 x86_cpu_compat_set_features("Westmere", FEAT_1_ECX
, 0, CPUID_EXT_PCLMULQDQ
);
369 #define DEFINE_Q35_MACHINE(suffix, name, compatfn, optionfn) \
370 static void pc_init_##suffix(MachineState *machine) \
372 void (*compat)(MachineState *m) = (compatfn); \
376 pc_q35_init(machine); \
378 DEFINE_PC_MACHINE(suffix, name, pc_init_##suffix, optionfn)
381 static void pc_q35_machine_options(MachineClass
*m
)
383 pc_default_machine_options(m
);
384 m
->family
= "pc_q35";
385 m
->desc
= "Standard PC (Q35 + ICH9, 2009)";
386 m
->hot_add_cpu
= pc_hot_add_cpu
;
387 m
->units_per_default_bus
= 1;
390 static void pc_q35_2_4_machine_options(MachineClass
*m
)
392 pc_q35_machine_options(m
);
393 m
->default_machine_opts
= "firmware=bios-256k.bin";
394 m
->default_display
= "std";
398 DEFINE_Q35_MACHINE(v2_4
, "pc-q35-2.4", NULL
,
399 pc_q35_2_4_machine_options
);
402 static void pc_q35_2_3_machine_options(MachineClass
*m
)
404 pc_q35_2_4_machine_options(m
);
406 SET_MACHINE_COMPAT(m
, PC_COMPAT_2_3
);
409 DEFINE_Q35_MACHINE(v2_3
, "pc-q35-2.3", pc_compat_2_3
,
410 pc_q35_2_3_machine_options
);
413 static void pc_q35_2_2_machine_options(MachineClass
*m
)
415 pc_q35_2_3_machine_options(m
);
416 SET_MACHINE_COMPAT(m
, PC_COMPAT_2_2
);
419 DEFINE_Q35_MACHINE(v2_2
, "pc-q35-2.2", pc_compat_2_2
,
420 pc_q35_2_2_machine_options
);
423 static void pc_q35_2_1_machine_options(MachineClass
*m
)
425 pc_q35_2_2_machine_options(m
);
426 m
->default_display
= NULL
;
427 SET_MACHINE_COMPAT(m
, PC_COMPAT_2_1
);
430 DEFINE_Q35_MACHINE(v2_1
, "pc-q35-2.1", pc_compat_2_1
,
431 pc_q35_2_1_machine_options
);
434 static void pc_q35_2_0_machine_options(MachineClass
*m
)
436 pc_q35_2_1_machine_options(m
);
437 SET_MACHINE_COMPAT(m
, PC_COMPAT_2_0
);
440 DEFINE_Q35_MACHINE(v2_0
, "pc-q35-2.0", pc_compat_2_0
,
441 pc_q35_2_0_machine_options
);
444 static void pc_q35_1_7_machine_options(MachineClass
*m
)
446 pc_q35_2_0_machine_options(m
);
447 m
->default_machine_opts
= NULL
;
448 SET_MACHINE_COMPAT(m
, PC_COMPAT_1_7
);
451 DEFINE_Q35_MACHINE(v1_7
, "pc-q35-1.7", pc_compat_1_7
,
452 pc_q35_1_7_machine_options
);
455 static void pc_q35_1_6_machine_options(MachineClass
*m
)
457 pc_q35_machine_options(m
);
458 SET_MACHINE_COMPAT(m
, PC_COMPAT_1_6
);
461 DEFINE_Q35_MACHINE(v1_6
, "pc-q35-1.6", pc_compat_1_6
,
462 pc_q35_1_6_machine_options
);
465 static void pc_q35_1_5_machine_options(MachineClass
*m
)
467 pc_q35_1_6_machine_options(m
);
468 SET_MACHINE_COMPAT(m
, PC_COMPAT_1_5
);
471 DEFINE_Q35_MACHINE(v1_5
, "pc-q35-1.5", pc_compat_1_5
,
472 pc_q35_1_5_machine_options
);
475 static void pc_q35_1_4_machine_options(MachineClass
*m
)
477 pc_q35_1_5_machine_options(m
);
478 m
->hot_add_cpu
= NULL
;
479 SET_MACHINE_COMPAT(m
, PC_COMPAT_1_4
);
482 DEFINE_Q35_MACHINE(v1_4
, "pc-q35-1.4", pc_compat_1_4
,
483 pc_q35_1_4_machine_options
);