2 * Copyright (c) 2003-2004 Fabrice Bellard
3 * Copyright (c) 2019 Red Hat, Inc.
5 * Permission is hereby granted, free of charge, to any person obtaining a copy
6 * of this software and associated documentation files (the "Software"), to deal
7 * in the Software without restriction, including without limitation the rights
8 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9 * copies of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23 #include "qemu/osdep.h"
24 #include "qemu/error-report.h"
25 #include "qemu/option.h"
26 #include "qemu/cutils.h"
27 #include "qemu/units.h"
28 #include "qemu/datadir.h"
29 #include "qapi/error.h"
30 #include "qapi/qapi-visit-common.h"
31 #include "qapi/clone-visitor.h"
32 #include "qapi/qapi-visit-machine.h"
33 #include "qapi/visitor.h"
34 #include "sysemu/qtest.h"
35 #include "sysemu/whpx.h"
36 #include "sysemu/numa.h"
37 #include "sysemu/replay.h"
38 #include "sysemu/sysemu.h"
39 #include "sysemu/cpu-timers.h"
40 #include "sysemu/xen.h"
43 #include "hw/i386/x86.h"
44 #include "target/i386/cpu.h"
45 #include "hw/i386/topology.h"
46 #include "hw/i386/fw_cfg.h"
47 #include "hw/intc/i8259.h"
48 #include "hw/rtc/mc146818rtc.h"
49 #include "target/i386/sev.h"
51 #include "hw/acpi/cpu_hotplug.h"
54 #include "hw/loader.h"
55 #include "multiboot.h"
57 #include "standard-headers/asm-x86/bootparam.h"
58 #include CONFIG_DEVICES
59 #include "kvm/kvm_i386.h"
62 #include "hw/xen/xen.h"
63 #include "hw/i386/kvm/xen_evtchn.h"
66 /* Physical Address of PVH entry point read from kernel ELF NOTE */
67 static size_t pvh_start_addr
;
69 static void init_topo_info(X86CPUTopoInfo
*topo_info
,
70 const X86MachineState
*x86ms
)
72 MachineState
*ms
= MACHINE(x86ms
);
74 topo_info
->dies_per_pkg
= ms
->smp
.dies
;
75 topo_info
->cores_per_die
= ms
->smp
.cores
;
76 topo_info
->threads_per_core
= ms
->smp
.threads
;
80 * Calculates initial APIC ID for a specific CPU index
82 * Currently we need to be able to calculate the APIC ID from the CPU index
83 * alone (without requiring a CPU object), as the QEMU<->Seabios interfaces have
84 * no concept of "CPU index", and the NUMA tables on fw_cfg need the APIC ID of
85 * all CPUs up to max_cpus.
87 uint32_t x86_cpu_apic_id_from_index(X86MachineState
*x86ms
,
88 unsigned int cpu_index
)
90 X86CPUTopoInfo topo_info
;
92 init_topo_info(&topo_info
, x86ms
);
94 return x86_apicid_from_cpu_idx(&topo_info
, cpu_index
);
98 void x86_cpu_new(X86MachineState
*x86ms
, int64_t apic_id
, Error
**errp
)
100 Object
*cpu
= object_new(MACHINE(x86ms
)->cpu_type
);
102 if (!object_property_set_uint(cpu
, "apic-id", apic_id
, errp
)) {
105 qdev_realize(DEVICE(cpu
), NULL
, errp
);
111 void x86_cpus_init(X86MachineState
*x86ms
, int default_cpu_version
)
114 const CPUArchIdList
*possible_cpus
;
115 MachineState
*ms
= MACHINE(x86ms
);
116 MachineClass
*mc
= MACHINE_GET_CLASS(x86ms
);
118 x86_cpu_set_default_version(default_cpu_version
);
121 * Calculates the limit to CPU APIC ID values
123 * Limit for the APIC ID value, so that all
124 * CPU APIC IDs are < x86ms->apic_id_limit.
126 * This is used for FW_CFG_MAX_CPUS. See comments on fw_cfg_arch_create().
128 x86ms
->apic_id_limit
= x86_cpu_apic_id_from_index(x86ms
,
129 ms
->smp
.max_cpus
- 1) + 1;
132 * Can we support APIC ID 255 or higher? With KVM, that requires
133 * both in-kernel lapic and X2APIC userspace API.
135 * kvm_enabled() must go first to ensure that kvm_* references are
136 * not emitted for the linker to consume (kvm_enabled() is
137 * a literal `0` in configurations where kvm_* aren't defined)
139 if (kvm_enabled() && x86ms
->apic_id_limit
> 255 &&
140 (!kvm_irqchip_in_kernel() || !kvm_enable_x2apic())) {
141 error_report("current -smp configuration requires kernel "
142 "irqchip and X2APIC API support.");
147 kvm_set_max_apic_id(x86ms
->apic_id_limit
);
150 possible_cpus
= mc
->possible_cpu_arch_ids(ms
);
151 for (i
= 0; i
< ms
->smp
.cpus
; i
++) {
152 x86_cpu_new(x86ms
, possible_cpus
->cpus
[i
].arch_id
, &error_fatal
);
156 void x86_rtc_set_cpus_count(ISADevice
*s
, uint16_t cpus_count
)
158 MC146818RtcState
*rtc
= MC146818_RTC(s
);
160 if (cpus_count
> 0xff) {
162 * If the number of CPUs can't be represented in 8 bits, the
163 * BIOS must use "FW_CFG_NB_CPUS". Set RTC field to 0 just
164 * to make old BIOSes fail more predictably.
166 mc146818rtc_set_cmos_data(rtc
, 0x5f, 0);
168 mc146818rtc_set_cmos_data(rtc
, 0x5f, cpus_count
- 1);
172 static int x86_apic_cmp(const void *a
, const void *b
)
174 CPUArchId
*apic_a
= (CPUArchId
*)a
;
175 CPUArchId
*apic_b
= (CPUArchId
*)b
;
177 return apic_a
->arch_id
- apic_b
->arch_id
;
181 * returns pointer to CPUArchId descriptor that matches CPU's apic_id
182 * in ms->possible_cpus->cpus, if ms->possible_cpus->cpus has no
183 * entry corresponding to CPU's apic_id returns NULL.
185 CPUArchId
*x86_find_cpu_slot(MachineState
*ms
, uint32_t id
, int *idx
)
187 CPUArchId apic_id
, *found_cpu
;
189 apic_id
.arch_id
= id
;
190 found_cpu
= bsearch(&apic_id
, ms
->possible_cpus
->cpus
,
191 ms
->possible_cpus
->len
, sizeof(*ms
->possible_cpus
->cpus
),
193 if (found_cpu
&& idx
) {
194 *idx
= found_cpu
- ms
->possible_cpus
->cpus
;
199 void x86_cpu_plug(HotplugHandler
*hotplug_dev
,
200 DeviceState
*dev
, Error
**errp
)
202 CPUArchId
*found_cpu
;
203 Error
*local_err
= NULL
;
204 X86CPU
*cpu
= X86_CPU(dev
);
205 X86MachineState
*x86ms
= X86_MACHINE(hotplug_dev
);
207 if (x86ms
->acpi_dev
) {
208 hotplug_handler_plug(x86ms
->acpi_dev
, dev
, &local_err
);
214 /* increment the number of CPUs */
217 x86_rtc_set_cpus_count(x86ms
->rtc
, x86ms
->boot_cpus
);
220 fw_cfg_modify_i16(x86ms
->fw_cfg
, FW_CFG_NB_CPUS
, x86ms
->boot_cpus
);
223 found_cpu
= x86_find_cpu_slot(MACHINE(x86ms
), cpu
->apic_id
, NULL
);
224 found_cpu
->cpu
= OBJECT(dev
);
226 error_propagate(errp
, local_err
);
229 void x86_cpu_unplug_request_cb(HotplugHandler
*hotplug_dev
,
230 DeviceState
*dev
, Error
**errp
)
233 X86CPU
*cpu
= X86_CPU(dev
);
234 X86MachineState
*x86ms
= X86_MACHINE(hotplug_dev
);
236 if (!x86ms
->acpi_dev
) {
237 error_setg(errp
, "CPU hot unplug not supported without ACPI");
241 x86_find_cpu_slot(MACHINE(x86ms
), cpu
->apic_id
, &idx
);
244 error_setg(errp
, "Boot CPU is unpluggable");
248 hotplug_handler_unplug_request(x86ms
->acpi_dev
, dev
,
252 void x86_cpu_unplug_cb(HotplugHandler
*hotplug_dev
,
253 DeviceState
*dev
, Error
**errp
)
255 CPUArchId
*found_cpu
;
256 Error
*local_err
= NULL
;
257 X86CPU
*cpu
= X86_CPU(dev
);
258 X86MachineState
*x86ms
= X86_MACHINE(hotplug_dev
);
260 hotplug_handler_unplug(x86ms
->acpi_dev
, dev
, &local_err
);
265 found_cpu
= x86_find_cpu_slot(MACHINE(x86ms
), cpu
->apic_id
, NULL
);
266 found_cpu
->cpu
= NULL
;
269 /* decrement the number of CPUs */
271 /* Update the number of CPUs in CMOS */
272 x86_rtc_set_cpus_count(x86ms
->rtc
, x86ms
->boot_cpus
);
273 fw_cfg_modify_i16(x86ms
->fw_cfg
, FW_CFG_NB_CPUS
, x86ms
->boot_cpus
);
275 error_propagate(errp
, local_err
);
278 void x86_cpu_pre_plug(HotplugHandler
*hotplug_dev
,
279 DeviceState
*dev
, Error
**errp
)
284 X86CPUTopoIDs topo_ids
;
285 X86CPU
*cpu
= X86_CPU(dev
);
286 CPUX86State
*env
= &cpu
->env
;
287 MachineState
*ms
= MACHINE(hotplug_dev
);
288 X86MachineState
*x86ms
= X86_MACHINE(hotplug_dev
);
289 unsigned int smp_cores
= ms
->smp
.cores
;
290 unsigned int smp_threads
= ms
->smp
.threads
;
291 X86CPUTopoInfo topo_info
;
293 if (!object_dynamic_cast(OBJECT(cpu
), ms
->cpu_type
)) {
294 error_setg(errp
, "Invalid CPU type, expected cpu type: '%s'",
299 if (x86ms
->acpi_dev
) {
300 Error
*local_err
= NULL
;
302 hotplug_handler_pre_plug(HOTPLUG_HANDLER(x86ms
->acpi_dev
), dev
,
305 error_propagate(errp
, local_err
);
310 init_topo_info(&topo_info
, x86ms
);
312 env
->nr_dies
= ms
->smp
.dies
;
315 * If APIC ID is not set,
316 * set it based on socket/die/core/thread properties.
318 if (cpu
->apic_id
== UNASSIGNED_APIC_ID
) {
319 int max_socket
= (ms
->smp
.max_cpus
- 1) /
320 smp_threads
/ smp_cores
/ ms
->smp
.dies
;
323 * die-id was optional in QEMU 4.0 and older, so keep it optional
324 * if there's only one die per socket.
326 if (cpu
->die_id
< 0 && ms
->smp
.dies
== 1) {
330 if (cpu
->socket_id
< 0) {
331 error_setg(errp
, "CPU socket-id is not set");
333 } else if (cpu
->socket_id
> max_socket
) {
334 error_setg(errp
, "Invalid CPU socket-id: %u must be in range 0:%u",
335 cpu
->socket_id
, max_socket
);
338 if (cpu
->die_id
< 0) {
339 error_setg(errp
, "CPU die-id is not set");
341 } else if (cpu
->die_id
> ms
->smp
.dies
- 1) {
342 error_setg(errp
, "Invalid CPU die-id: %u must be in range 0:%u",
343 cpu
->die_id
, ms
->smp
.dies
- 1);
346 if (cpu
->core_id
< 0) {
347 error_setg(errp
, "CPU core-id is not set");
349 } else if (cpu
->core_id
> (smp_cores
- 1)) {
350 error_setg(errp
, "Invalid CPU core-id: %u must be in range 0:%u",
351 cpu
->core_id
, smp_cores
- 1);
354 if (cpu
->thread_id
< 0) {
355 error_setg(errp
, "CPU thread-id is not set");
357 } else if (cpu
->thread_id
> (smp_threads
- 1)) {
358 error_setg(errp
, "Invalid CPU thread-id: %u must be in range 0:%u",
359 cpu
->thread_id
, smp_threads
- 1);
363 topo_ids
.pkg_id
= cpu
->socket_id
;
364 topo_ids
.die_id
= cpu
->die_id
;
365 topo_ids
.core_id
= cpu
->core_id
;
366 topo_ids
.smt_id
= cpu
->thread_id
;
367 cpu
->apic_id
= x86_apicid_from_topo_ids(&topo_info
, &topo_ids
);
370 cpu_slot
= x86_find_cpu_slot(MACHINE(x86ms
), cpu
->apic_id
, &idx
);
372 x86_topo_ids_from_apicid(cpu
->apic_id
, &topo_info
, &topo_ids
);
374 "Invalid CPU [socket: %u, die: %u, core: %u, thread: %u] with"
375 " APIC ID %" PRIu32
", valid index range 0:%d",
376 topo_ids
.pkg_id
, topo_ids
.die_id
, topo_ids
.core_id
, topo_ids
.smt_id
,
377 cpu
->apic_id
, ms
->possible_cpus
->len
- 1);
382 error_setg(errp
, "CPU[%d] with APIC ID %" PRIu32
" exists",
387 /* if 'address' properties socket-id/core-id/thread-id are not set, set them
388 * so that machine_query_hotpluggable_cpus would show correct values
390 /* TODO: move socket_id/core_id/thread_id checks into x86_cpu_realizefn()
391 * once -smp refactoring is complete and there will be CPU private
392 * CPUState::nr_cores and CPUState::nr_threads fields instead of globals */
393 x86_topo_ids_from_apicid(cpu
->apic_id
, &topo_info
, &topo_ids
);
394 if (cpu
->socket_id
!= -1 && cpu
->socket_id
!= topo_ids
.pkg_id
) {
395 error_setg(errp
, "property socket-id: %u doesn't match set apic-id:"
396 " 0x%x (socket-id: %u)", cpu
->socket_id
, cpu
->apic_id
,
400 cpu
->socket_id
= topo_ids
.pkg_id
;
402 if (cpu
->die_id
!= -1 && cpu
->die_id
!= topo_ids
.die_id
) {
403 error_setg(errp
, "property die-id: %u doesn't match set apic-id:"
404 " 0x%x (die-id: %u)", cpu
->die_id
, cpu
->apic_id
, topo_ids
.die_id
);
407 cpu
->die_id
= topo_ids
.die_id
;
409 if (cpu
->core_id
!= -1 && cpu
->core_id
!= topo_ids
.core_id
) {
410 error_setg(errp
, "property core-id: %u doesn't match set apic-id:"
411 " 0x%x (core-id: %u)", cpu
->core_id
, cpu
->apic_id
,
415 cpu
->core_id
= topo_ids
.core_id
;
417 if (cpu
->thread_id
!= -1 && cpu
->thread_id
!= topo_ids
.smt_id
) {
418 error_setg(errp
, "property thread-id: %u doesn't match set apic-id:"
419 " 0x%x (thread-id: %u)", cpu
->thread_id
, cpu
->apic_id
,
423 cpu
->thread_id
= topo_ids
.smt_id
;
426 * kvm_enabled() must go first to ensure that kvm_* references are
427 * not emitted for the linker to consume (kvm_enabled() is
428 * a literal `0` in configurations where kvm_* aren't defined)
430 if (kvm_enabled() && hyperv_feat_enabled(cpu
, HYPERV_FEAT_VPINDEX
) &&
431 !kvm_hv_vpindex_settable()) {
432 error_setg(errp
, "kernel doesn't allow setting HyperV VP_INDEX");
439 numa_cpu_pre_plug(cpu_slot
, dev
, errp
);
442 CpuInstanceProperties
443 x86_cpu_index_to_props(MachineState
*ms
, unsigned cpu_index
)
445 MachineClass
*mc
= MACHINE_GET_CLASS(ms
);
446 const CPUArchIdList
*possible_cpus
= mc
->possible_cpu_arch_ids(ms
);
448 assert(cpu_index
< possible_cpus
->len
);
449 return possible_cpus
->cpus
[cpu_index
].props
;
452 int64_t x86_get_default_cpu_node_id(const MachineState
*ms
, int idx
)
454 X86CPUTopoIDs topo_ids
;
455 X86MachineState
*x86ms
= X86_MACHINE(ms
);
456 X86CPUTopoInfo topo_info
;
458 init_topo_info(&topo_info
, x86ms
);
460 assert(idx
< ms
->possible_cpus
->len
);
461 x86_topo_ids_from_apicid(ms
->possible_cpus
->cpus
[idx
].arch_id
,
462 &topo_info
, &topo_ids
);
463 return topo_ids
.pkg_id
% ms
->numa_state
->num_nodes
;
466 const CPUArchIdList
*x86_possible_cpu_arch_ids(MachineState
*ms
)
468 X86MachineState
*x86ms
= X86_MACHINE(ms
);
469 unsigned int max_cpus
= ms
->smp
.max_cpus
;
470 X86CPUTopoInfo topo_info
;
473 if (ms
->possible_cpus
) {
475 * make sure that max_cpus hasn't changed since the first use, i.e.
476 * -smp hasn't been parsed after it
478 assert(ms
->possible_cpus
->len
== max_cpus
);
479 return ms
->possible_cpus
;
482 ms
->possible_cpus
= g_malloc0(sizeof(CPUArchIdList
) +
483 sizeof(CPUArchId
) * max_cpus
);
484 ms
->possible_cpus
->len
= max_cpus
;
486 init_topo_info(&topo_info
, x86ms
);
488 for (i
= 0; i
< ms
->possible_cpus
->len
; i
++) {
489 X86CPUTopoIDs topo_ids
;
491 ms
->possible_cpus
->cpus
[i
].type
= ms
->cpu_type
;
492 ms
->possible_cpus
->cpus
[i
].vcpus_count
= 1;
493 ms
->possible_cpus
->cpus
[i
].arch_id
=
494 x86_cpu_apic_id_from_index(x86ms
, i
);
495 x86_topo_ids_from_apicid(ms
->possible_cpus
->cpus
[i
].arch_id
,
496 &topo_info
, &topo_ids
);
497 ms
->possible_cpus
->cpus
[i
].props
.has_socket_id
= true;
498 ms
->possible_cpus
->cpus
[i
].props
.socket_id
= topo_ids
.pkg_id
;
499 if (ms
->smp
.dies
> 1) {
500 ms
->possible_cpus
->cpus
[i
].props
.has_die_id
= true;
501 ms
->possible_cpus
->cpus
[i
].props
.die_id
= topo_ids
.die_id
;
503 ms
->possible_cpus
->cpus
[i
].props
.has_core_id
= true;
504 ms
->possible_cpus
->cpus
[i
].props
.core_id
= topo_ids
.core_id
;
505 ms
->possible_cpus
->cpus
[i
].props
.has_thread_id
= true;
506 ms
->possible_cpus
->cpus
[i
].props
.thread_id
= topo_ids
.smt_id
;
508 return ms
->possible_cpus
;
511 static void x86_nmi(NMIState
*n
, int cpu_index
, Error
**errp
)
513 /* cpu index isn't used */
517 X86CPU
*cpu
= X86_CPU(cs
);
519 if (!cpu
->apic_state
) {
520 cpu_interrupt(cs
, CPU_INTERRUPT_NMI
);
522 apic_deliver_nmi(cpu
->apic_state
);
527 static long get_file_size(FILE *f
)
531 /* XXX: on Unix systems, using fstat() probably makes more sense */
534 fseek(f
, 0, SEEK_END
);
536 fseek(f
, where
, SEEK_SET
);
542 uint64_t cpu_get_tsc(CPUX86State
*env
)
544 return cpus_get_elapsed_ticks();
548 static void pic_irq_request(void *opaque
, int irq
, int level
)
550 CPUState
*cs
= first_cpu
;
551 X86CPU
*cpu
= X86_CPU(cs
);
553 trace_x86_pic_interrupt(irq
, level
);
554 if (cpu
->apic_state
&& !kvm_irqchip_in_kernel() &&
555 !whpx_apic_in_platform()) {
558 if (apic_accept_pic_intr(cpu
->apic_state
)) {
559 apic_deliver_pic_intr(cpu
->apic_state
, level
);
564 cpu_interrupt(cs
, CPU_INTERRUPT_HARD
);
566 cpu_reset_interrupt(cs
, CPU_INTERRUPT_HARD
);
571 qemu_irq
x86_allocate_cpu_irq(void)
573 return qemu_allocate_irq(pic_irq_request
, NULL
, 0);
576 int cpu_get_pic_interrupt(CPUX86State
*env
)
578 X86CPU
*cpu
= env_archcpu(env
);
581 if (!kvm_irqchip_in_kernel() && !whpx_apic_in_platform()) {
582 intno
= apic_get_interrupt(cpu
->apic_state
);
586 /* read the irq from the PIC */
587 if (!apic_accept_pic_intr(cpu
->apic_state
)) {
592 intno
= pic_read_irq(isa_pic
);
596 DeviceState
*cpu_get_current_apic(void)
599 X86CPU
*cpu
= X86_CPU(current_cpu
);
600 return cpu
->apic_state
;
606 void gsi_handler(void *opaque
, int n
, int level
)
608 GSIState
*s
= opaque
;
610 trace_x86_gsi_interrupt(n
, level
);
612 case 0 ... ISA_NUM_IRQS
- 1:
613 if (s
->i8259_irq
[n
]) {
614 /* Under KVM, Kernel will forward to both PIC and IOAPIC */
615 qemu_set_irq(s
->i8259_irq
[n
], level
);
618 case ISA_NUM_IRQS
... IOAPIC_NUM_PINS
- 1:
619 #ifdef CONFIG_XEN_EMU
621 * Xen delivers the GSI to the Legacy PIC (not that Legacy PIC
622 * routing actually works properly under Xen). And then to
623 * *either* the PIRQ handling or the I/OAPIC depending on
624 * whether the former wants it.
626 if (xen_mode
== XEN_EMULATE
&& xen_evtchn_set_gsi(n
, level
)) {
630 qemu_set_irq(s
->ioapic_irq
[n
], level
);
632 case IO_APIC_SECONDARY_IRQBASE
633 ... IO_APIC_SECONDARY_IRQBASE
+ IOAPIC_NUM_PINS
- 1:
634 qemu_set_irq(s
->ioapic2_irq
[n
- IO_APIC_SECONDARY_IRQBASE
], level
);
639 void ioapic_init_gsi(GSIState
*gsi_state
, const char *parent_name
)
646 if (kvm_ioapic_in_kernel()) {
647 dev
= qdev_new(TYPE_KVM_IOAPIC
);
649 dev
= qdev_new(TYPE_IOAPIC
);
651 object_property_add_child(object_resolve_path(parent_name
, NULL
),
652 "ioapic", OBJECT(dev
));
653 d
= SYS_BUS_DEVICE(dev
);
654 sysbus_realize_and_unref(d
, &error_fatal
);
655 sysbus_mmio_map(d
, 0, IO_APIC_DEFAULT_ADDRESS
);
657 for (i
= 0; i
< IOAPIC_NUM_PINS
; i
++) {
658 gsi_state
->ioapic_irq
[i
] = qdev_get_gpio_in(dev
, i
);
662 DeviceState
*ioapic_init_secondary(GSIState
*gsi_state
)
668 dev
= qdev_new(TYPE_IOAPIC
);
669 d
= SYS_BUS_DEVICE(dev
);
670 sysbus_realize_and_unref(d
, &error_fatal
);
671 sysbus_mmio_map(d
, 0, IO_APIC_SECONDARY_ADDRESS
);
673 for (i
= 0; i
< IOAPIC_NUM_PINS
; i
++) {
674 gsi_state
->ioapic2_irq
[i
] = qdev_get_gpio_in(dev
, i
);
684 } __attribute__((packed
));
688 * The entry point into the kernel for PVH boot is different from
689 * the native entry point. The PVH entry is defined by the x86/HVM
690 * direct boot ABI and is available in an ELFNOTE in the kernel binary.
692 * This function is passed to load_elf() when it is called from
693 * load_elfboot() which then additionally checks for an ELF Note of
694 * type XEN_ELFNOTE_PHYS32_ENTRY and passes it to this function to
695 * parse the PVH entry address from the ELF Note.
697 * Due to trickery in elf_opts.h, load_elf() is actually available as
698 * load_elf32() or load_elf64() and this routine needs to be able
699 * to deal with being called as 32 or 64 bit.
701 * The address of the PVH entry point is saved to the 'pvh_start_addr'
702 * global variable. (although the entry point is 32-bit, the kernel
703 * binary can be either 32-bit or 64-bit).
705 static uint64_t read_pvh_start_addr(void *arg1
, void *arg2
, bool is64
)
707 size_t *elf_note_data_addr
;
709 /* Check if ELF Note header passed in is valid */
715 struct elf64_note
*nhdr64
= (struct elf64_note
*)arg1
;
716 uint64_t nhdr_size64
= sizeof(struct elf64_note
);
717 uint64_t phdr_align
= *(uint64_t *)arg2
;
718 uint64_t nhdr_namesz
= nhdr64
->n_namesz
;
721 ((void *)nhdr64
) + nhdr_size64
+
722 QEMU_ALIGN_UP(nhdr_namesz
, phdr_align
);
724 pvh_start_addr
= *elf_note_data_addr
;
726 struct elf32_note
*nhdr32
= (struct elf32_note
*)arg1
;
727 uint32_t nhdr_size32
= sizeof(struct elf32_note
);
728 uint32_t phdr_align
= *(uint32_t *)arg2
;
729 uint32_t nhdr_namesz
= nhdr32
->n_namesz
;
732 ((void *)nhdr32
) + nhdr_size32
+
733 QEMU_ALIGN_UP(nhdr_namesz
, phdr_align
);
735 pvh_start_addr
= *(uint32_t *)elf_note_data_addr
;
738 return pvh_start_addr
;
741 static bool load_elfboot(const char *kernel_filename
,
742 int kernel_file_size
,
744 size_t pvh_xen_start_addr
,
748 uint32_t mh_load_addr
= 0;
749 uint32_t elf_kernel_size
= 0;
751 uint64_t elf_low
, elf_high
;
754 if (ldl_p(header
) != 0x464c457f) {
755 return false; /* no elfboot */
758 bool elf_is64
= header
[EI_CLASS
] == ELFCLASS64
;
760 ((Elf64_Ehdr
*)header
)->e_flags
: ((Elf32_Ehdr
*)header
)->e_flags
;
762 if (flags
& 0x00010004) { /* LOAD_ELF_HEADER_HAS_ADDR */
763 error_report("elfboot unsupported flags = %x", flags
);
767 uint64_t elf_note_type
= XEN_ELFNOTE_PHYS32_ENTRY
;
768 kernel_size
= load_elf(kernel_filename
, read_pvh_start_addr
,
769 NULL
, &elf_note_type
, &elf_entry
,
770 &elf_low
, &elf_high
, NULL
, 0, I386_ELF_MACHINE
,
773 if (kernel_size
< 0) {
774 error_report("Error while loading elf kernel");
777 mh_load_addr
= elf_low
;
778 elf_kernel_size
= elf_high
- elf_low
;
780 if (pvh_start_addr
== 0) {
781 error_report("Error loading uncompressed kernel without PVH ELF Note");
784 fw_cfg_add_i32(fw_cfg
, FW_CFG_KERNEL_ENTRY
, pvh_start_addr
);
785 fw_cfg_add_i32(fw_cfg
, FW_CFG_KERNEL_ADDR
, mh_load_addr
);
786 fw_cfg_add_i32(fw_cfg
, FW_CFG_KERNEL_SIZE
, elf_kernel_size
);
791 void x86_load_linux(X86MachineState
*x86ms
,
796 bool linuxboot_dma_enabled
= X86_MACHINE_GET_CLASS(x86ms
)->fwcfg_dma_enabled
;
798 int setup_size
, kernel_size
, cmdline_size
;
799 int dtb_size
, setup_data_offset
;
801 uint8_t header
[8192], *setup
, *kernel
;
802 hwaddr real_addr
, prot_addr
, cmdline_addr
, initrd_addr
= 0;
805 MachineState
*machine
= MACHINE(x86ms
);
806 struct setup_data
*setup_data
;
807 const char *kernel_filename
= machine
->kernel_filename
;
808 const char *initrd_filename
= machine
->initrd_filename
;
809 const char *dtb_filename
= machine
->dtb
;
810 const char *kernel_cmdline
= machine
->kernel_cmdline
;
811 SevKernelLoaderContext sev_load_ctx
= {};
813 /* Align to 16 bytes as a paranoia measure */
814 cmdline_size
= (strlen(kernel_cmdline
) + 16) & ~15;
816 /* load the kernel header */
817 f
= fopen(kernel_filename
, "rb");
819 fprintf(stderr
, "qemu: could not open kernel file '%s': %s\n",
820 kernel_filename
, strerror(errno
));
824 kernel_size
= get_file_size(f
);
826 fread(header
, 1, MIN(ARRAY_SIZE(header
), kernel_size
), f
) !=
827 MIN(ARRAY_SIZE(header
), kernel_size
)) {
828 fprintf(stderr
, "qemu: could not load kernel '%s': %s\n",
829 kernel_filename
, strerror(errno
));
833 /* kernel protocol version */
834 if (ldl_p(header
+ 0x202) == 0x53726448) {
835 protocol
= lduw_p(header
+ 0x206);
838 * This could be a multiboot kernel. If it is, let's stop treating it
839 * like a Linux kernel.
840 * Note: some multiboot images could be in the ELF format (the same of
841 * PVH), so we try multiboot first since we check the multiboot magic
842 * header before to load it.
844 if (load_multiboot(x86ms
, fw_cfg
, f
, kernel_filename
, initrd_filename
,
845 kernel_cmdline
, kernel_size
, header
)) {
849 * Check if the file is an uncompressed kernel file (ELF) and load it,
850 * saving the PVH entry point used by the x86/HVM direct boot ABI.
851 * If load_elfboot() is successful, populate the fw_cfg info.
854 load_elfboot(kernel_filename
, kernel_size
,
855 header
, pvh_start_addr
, fw_cfg
)) {
858 fw_cfg_add_i32(fw_cfg
, FW_CFG_CMDLINE_SIZE
,
859 strlen(kernel_cmdline
) + 1);
860 fw_cfg_add_string(fw_cfg
, FW_CFG_CMDLINE_DATA
, kernel_cmdline
);
862 fw_cfg_add_i32(fw_cfg
, FW_CFG_SETUP_SIZE
, sizeof(header
));
863 fw_cfg_add_bytes(fw_cfg
, FW_CFG_SETUP_DATA
,
864 header
, sizeof(header
));
867 if (initrd_filename
) {
868 GMappedFile
*mapped_file
;
873 mapped_file
= g_mapped_file_new(initrd_filename
, false, &gerr
);
875 fprintf(stderr
, "qemu: error reading initrd %s: %s\n",
876 initrd_filename
, gerr
->message
);
879 x86ms
->initrd_mapped_file
= mapped_file
;
881 initrd_data
= g_mapped_file_get_contents(mapped_file
);
882 initrd_size
= g_mapped_file_get_length(mapped_file
);
883 initrd_max
= x86ms
->below_4g_mem_size
- acpi_data_size
- 1;
884 if (initrd_size
>= initrd_max
) {
885 fprintf(stderr
, "qemu: initrd is too large, cannot support."
886 "(max: %"PRIu32
", need %"PRId64
")\n",
887 initrd_max
, (uint64_t)initrd_size
);
891 initrd_addr
= (initrd_max
- initrd_size
) & ~4095;
893 fw_cfg_add_i32(fw_cfg
, FW_CFG_INITRD_ADDR
, initrd_addr
);
894 fw_cfg_add_i32(fw_cfg
, FW_CFG_INITRD_SIZE
, initrd_size
);
895 fw_cfg_add_bytes(fw_cfg
, FW_CFG_INITRD_DATA
, initrd_data
,
899 option_rom
[nb_option_roms
].bootindex
= 0;
900 option_rom
[nb_option_roms
].name
= "pvh.bin";
908 if (protocol
< 0x200 || !(header
[0x211] & 0x01)) {
911 cmdline_addr
= 0x9a000 - cmdline_size
;
913 } else if (protocol
< 0x202) {
914 /* High but ancient kernel */
916 cmdline_addr
= 0x9a000 - cmdline_size
;
917 prot_addr
= 0x100000;
919 /* High and recent kernel */
921 cmdline_addr
= 0x20000;
922 prot_addr
= 0x100000;
925 /* highest address for loading the initrd */
926 if (protocol
>= 0x20c &&
927 lduw_p(header
+ 0x236) & XLF_CAN_BE_LOADED_ABOVE_4G
) {
929 * Linux has supported initrd up to 4 GB for a very long time (2007,
930 * long before XLF_CAN_BE_LOADED_ABOVE_4G which was added in 2013),
931 * though it only sets initrd_max to 2 GB to "work around bootloader
932 * bugs". Luckily, QEMU firmware(which does something like bootloader)
933 * has supported this.
935 * It's believed that if XLF_CAN_BE_LOADED_ABOVE_4G is set, initrd can
936 * be loaded into any address.
938 * In addition, initrd_max is uint32_t simply because QEMU doesn't
939 * support the 64-bit boot protocol (specifically the ext_ramdisk_image
942 * Therefore here just limit initrd_max to UINT32_MAX simply as well.
944 initrd_max
= UINT32_MAX
;
945 } else if (protocol
>= 0x203) {
946 initrd_max
= ldl_p(header
+ 0x22c);
948 initrd_max
= 0x37ffffff;
951 if (initrd_max
>= x86ms
->below_4g_mem_size
- acpi_data_size
) {
952 initrd_max
= x86ms
->below_4g_mem_size
- acpi_data_size
- 1;
955 fw_cfg_add_i32(fw_cfg
, FW_CFG_CMDLINE_ADDR
, cmdline_addr
);
956 fw_cfg_add_i32(fw_cfg
, FW_CFG_CMDLINE_SIZE
, strlen(kernel_cmdline
) + 1);
957 fw_cfg_add_string(fw_cfg
, FW_CFG_CMDLINE_DATA
, kernel_cmdline
);
958 sev_load_ctx
.cmdline_data
= (char *)kernel_cmdline
;
959 sev_load_ctx
.cmdline_size
= strlen(kernel_cmdline
) + 1;
961 if (protocol
>= 0x202) {
962 stl_p(header
+ 0x228, cmdline_addr
);
964 stw_p(header
+ 0x20, 0xA33F);
965 stw_p(header
+ 0x22, cmdline_addr
- real_addr
);
968 /* handle vga= parameter */
969 vmode
= strstr(kernel_cmdline
, "vga=");
971 unsigned int video_mode
;
976 if (!strncmp(vmode
, "normal", 6)) {
978 } else if (!strncmp(vmode
, "ext", 3)) {
980 } else if (!strncmp(vmode
, "ask", 3)) {
983 ret
= qemu_strtoui(vmode
, &end
, 0, &video_mode
);
984 if (ret
!= 0 || (*end
&& *end
!= ' ')) {
985 fprintf(stderr
, "qemu: invalid 'vga=' kernel parameter.\n");
989 stw_p(header
+ 0x1fa, video_mode
);
994 * High nybble = B reserved for QEMU; low nybble is revision number.
995 * If this code is substantially changed, you may want to consider
996 * incrementing the revision.
998 if (protocol
>= 0x200) {
999 header
[0x210] = 0xB0;
1002 if (protocol
>= 0x201) {
1003 header
[0x211] |= 0x80; /* CAN_USE_HEAP */
1004 stw_p(header
+ 0x224, cmdline_addr
- real_addr
- 0x200);
1008 if (initrd_filename
) {
1009 GMappedFile
*mapped_file
;
1012 GError
*gerr
= NULL
;
1014 if (protocol
< 0x200) {
1015 fprintf(stderr
, "qemu: linux kernel too old to load a ram disk\n");
1019 mapped_file
= g_mapped_file_new(initrd_filename
, false, &gerr
);
1021 fprintf(stderr
, "qemu: error reading initrd %s: %s\n",
1022 initrd_filename
, gerr
->message
);
1025 x86ms
->initrd_mapped_file
= mapped_file
;
1027 initrd_data
= g_mapped_file_get_contents(mapped_file
);
1028 initrd_size
= g_mapped_file_get_length(mapped_file
);
1029 if (initrd_size
>= initrd_max
) {
1030 fprintf(stderr
, "qemu: initrd is too large, cannot support."
1031 "(max: %"PRIu32
", need %"PRId64
")\n",
1032 initrd_max
, (uint64_t)initrd_size
);
1036 initrd_addr
= (initrd_max
- initrd_size
) & ~4095;
1038 fw_cfg_add_i32(fw_cfg
, FW_CFG_INITRD_ADDR
, initrd_addr
);
1039 fw_cfg_add_i32(fw_cfg
, FW_CFG_INITRD_SIZE
, initrd_size
);
1040 fw_cfg_add_bytes(fw_cfg
, FW_CFG_INITRD_DATA
, initrd_data
, initrd_size
);
1041 sev_load_ctx
.initrd_data
= initrd_data
;
1042 sev_load_ctx
.initrd_size
= initrd_size
;
1044 stl_p(header
+ 0x218, initrd_addr
);
1045 stl_p(header
+ 0x21c, initrd_size
);
1048 /* load kernel and setup */
1049 setup_size
= header
[0x1f1];
1050 if (setup_size
== 0) {
1053 setup_size
= (setup_size
+ 1) * 512;
1054 if (setup_size
> kernel_size
) {
1055 fprintf(stderr
, "qemu: invalid kernel header\n");
1058 kernel_size
-= setup_size
;
1060 setup
= g_malloc(setup_size
);
1061 kernel
= g_malloc(kernel_size
);
1062 fseek(f
, 0, SEEK_SET
);
1063 if (fread(setup
, 1, setup_size
, f
) != setup_size
) {
1064 fprintf(stderr
, "fread() failed\n");
1067 if (fread(kernel
, 1, kernel_size
, f
) != kernel_size
) {
1068 fprintf(stderr
, "fread() failed\n");
1073 /* append dtb to kernel */
1075 if (protocol
< 0x209) {
1076 fprintf(stderr
, "qemu: Linux kernel too old to load a dtb\n");
1080 dtb_size
= get_image_size(dtb_filename
);
1081 if (dtb_size
<= 0) {
1082 fprintf(stderr
, "qemu: error reading dtb %s: %s\n",
1083 dtb_filename
, strerror(errno
));
1087 setup_data_offset
= QEMU_ALIGN_UP(kernel_size
, 16);
1088 kernel_size
= setup_data_offset
+ sizeof(struct setup_data
) + dtb_size
;
1089 kernel
= g_realloc(kernel
, kernel_size
);
1091 stq_p(header
+ 0x250, prot_addr
+ setup_data_offset
);
1093 setup_data
= (struct setup_data
*)(kernel
+ setup_data_offset
);
1094 setup_data
->next
= 0;
1095 setup_data
->type
= cpu_to_le32(SETUP_DTB
);
1096 setup_data
->len
= cpu_to_le32(dtb_size
);
1098 load_image_size(dtb_filename
, setup_data
->data
, dtb_size
);
1102 * If we're starting an encrypted VM, it will be OVMF based, which uses the
1103 * efi stub for booting and doesn't require any values to be placed in the
1104 * kernel header. We therefore don't update the header so the hash of the
1105 * kernel on the other side of the fw_cfg interface matches the hash of the
1106 * file the user passed in.
1108 if (!sev_enabled()) {
1109 memcpy(setup
, header
, MIN(sizeof(header
), setup_size
));
1112 fw_cfg_add_i32(fw_cfg
, FW_CFG_KERNEL_ADDR
, prot_addr
);
1113 fw_cfg_add_i32(fw_cfg
, FW_CFG_KERNEL_SIZE
, kernel_size
);
1114 fw_cfg_add_bytes(fw_cfg
, FW_CFG_KERNEL_DATA
, kernel
, kernel_size
);
1115 sev_load_ctx
.kernel_data
= (char *)kernel
;
1116 sev_load_ctx
.kernel_size
= kernel_size
;
1118 fw_cfg_add_i32(fw_cfg
, FW_CFG_SETUP_ADDR
, real_addr
);
1119 fw_cfg_add_i32(fw_cfg
, FW_CFG_SETUP_SIZE
, setup_size
);
1120 fw_cfg_add_bytes(fw_cfg
, FW_CFG_SETUP_DATA
, setup
, setup_size
);
1121 sev_load_ctx
.setup_data
= (char *)setup
;
1122 sev_load_ctx
.setup_size
= setup_size
;
1124 if (sev_enabled()) {
1125 sev_add_kernel_loader_hashes(&sev_load_ctx
, &error_fatal
);
1128 option_rom
[nb_option_roms
].bootindex
= 0;
1129 option_rom
[nb_option_roms
].name
= "linuxboot.bin";
1130 if (linuxboot_dma_enabled
&& fw_cfg_dma_enabled(fw_cfg
)) {
1131 option_rom
[nb_option_roms
].name
= "linuxboot_dma.bin";
1136 void x86_bios_rom_init(MachineState
*ms
, const char *default_firmware
,
1137 MemoryRegion
*rom_memory
, bool isapc_ram_fw
)
1139 const char *bios_name
;
1141 MemoryRegion
*bios
, *isa_bios
;
1142 int bios_size
, isa_bios_size
;
1146 bios_name
= ms
->firmware
?: default_firmware
;
1147 filename
= qemu_find_file(QEMU_FILE_TYPE_BIOS
, bios_name
);
1149 bios_size
= get_image_size(filename
);
1153 if (bios_size
<= 0 ||
1154 (bios_size
% 65536) != 0) {
1157 bios
= g_malloc(sizeof(*bios
));
1158 memory_region_init_ram(bios
, NULL
, "pc.bios", bios_size
, &error_fatal
);
1159 if (sev_enabled()) {
1161 * The concept of a "reset" simply doesn't exist for
1162 * confidential computing guests, we have to destroy and
1163 * re-launch them instead. So there is no need to register
1164 * the firmware as rom to properly re-initialize on reset.
1165 * Just go for a straight file load instead.
1167 void *ptr
= memory_region_get_ram_ptr(bios
);
1168 load_image_size(filename
, ptr
, bios_size
);
1169 x86_firmware_configure(ptr
, bios_size
);
1171 if (!isapc_ram_fw
) {
1172 memory_region_set_readonly(bios
, true);
1174 ret
= rom_add_file_fixed(bios_name
, (uint32_t)(-bios_size
), -1);
1181 /* map the last 128KB of the BIOS in ISA space */
1182 isa_bios_size
= MIN(bios_size
, 128 * KiB
);
1183 isa_bios
= g_malloc(sizeof(*isa_bios
));
1184 memory_region_init_alias(isa_bios
, NULL
, "isa-bios", bios
,
1185 bios_size
- isa_bios_size
, isa_bios_size
);
1186 memory_region_add_subregion_overlap(rom_memory
,
1187 0x100000 - isa_bios_size
,
1190 if (!isapc_ram_fw
) {
1191 memory_region_set_readonly(isa_bios
, true);
1194 /* map all the bios at the top of memory */
1195 memory_region_add_subregion(rom_memory
,
1196 (uint32_t)(-bios_size
),
1201 fprintf(stderr
, "qemu: could not load PC BIOS '%s'\n", bios_name
);
1205 bool x86_machine_is_smm_enabled(const X86MachineState
*x86ms
)
1207 bool smm_available
= false;
1209 if (x86ms
->smm
== ON_OFF_AUTO_OFF
) {
1213 if (tcg_enabled() || qtest_enabled()) {
1214 smm_available
= true;
1215 } else if (kvm_enabled()) {
1216 smm_available
= kvm_has_smm();
1219 if (smm_available
) {
1223 if (x86ms
->smm
== ON_OFF_AUTO_ON
) {
1224 error_report("System Management Mode not supported by this hypervisor.");
1230 static void x86_machine_get_smm(Object
*obj
, Visitor
*v
, const char *name
,
1231 void *opaque
, Error
**errp
)
1233 X86MachineState
*x86ms
= X86_MACHINE(obj
);
1234 OnOffAuto smm
= x86ms
->smm
;
1236 visit_type_OnOffAuto(v
, name
, &smm
, errp
);
1239 static void x86_machine_set_smm(Object
*obj
, Visitor
*v
, const char *name
,
1240 void *opaque
, Error
**errp
)
1242 X86MachineState
*x86ms
= X86_MACHINE(obj
);
1244 visit_type_OnOffAuto(v
, name
, &x86ms
->smm
, errp
);
1247 bool x86_machine_is_acpi_enabled(const X86MachineState
*x86ms
)
1249 if (x86ms
->acpi
== ON_OFF_AUTO_OFF
) {
1255 static void x86_machine_get_acpi(Object
*obj
, Visitor
*v
, const char *name
,
1256 void *opaque
, Error
**errp
)
1258 X86MachineState
*x86ms
= X86_MACHINE(obj
);
1259 OnOffAuto acpi
= x86ms
->acpi
;
1261 visit_type_OnOffAuto(v
, name
, &acpi
, errp
);
1264 static void x86_machine_set_acpi(Object
*obj
, Visitor
*v
, const char *name
,
1265 void *opaque
, Error
**errp
)
1267 X86MachineState
*x86ms
= X86_MACHINE(obj
);
1269 visit_type_OnOffAuto(v
, name
, &x86ms
->acpi
, errp
);
1272 static void x86_machine_get_pit(Object
*obj
, Visitor
*v
, const char *name
,
1273 void *opaque
, Error
**errp
)
1275 X86MachineState
*x86ms
= X86_MACHINE(obj
);
1276 OnOffAuto pit
= x86ms
->pit
;
1278 visit_type_OnOffAuto(v
, name
, &pit
, errp
);
1281 static void x86_machine_set_pit(Object
*obj
, Visitor
*v
, const char *name
,
1282 void *opaque
, Error
**errp
)
1284 X86MachineState
*x86ms
= X86_MACHINE(obj
);;
1286 visit_type_OnOffAuto(v
, name
, &x86ms
->pit
, errp
);
1289 static void x86_machine_get_pic(Object
*obj
, Visitor
*v
, const char *name
,
1290 void *opaque
, Error
**errp
)
1292 X86MachineState
*x86ms
= X86_MACHINE(obj
);
1293 OnOffAuto pic
= x86ms
->pic
;
1295 visit_type_OnOffAuto(v
, name
, &pic
, errp
);
1298 static void x86_machine_set_pic(Object
*obj
, Visitor
*v
, const char *name
,
1299 void *opaque
, Error
**errp
)
1301 X86MachineState
*x86ms
= X86_MACHINE(obj
);
1303 visit_type_OnOffAuto(v
, name
, &x86ms
->pic
, errp
);
1306 static char *x86_machine_get_oem_id(Object
*obj
, Error
**errp
)
1308 X86MachineState
*x86ms
= X86_MACHINE(obj
);
1310 return g_strdup(x86ms
->oem_id
);
1313 static void x86_machine_set_oem_id(Object
*obj
, const char *value
, Error
**errp
)
1315 X86MachineState
*x86ms
= X86_MACHINE(obj
);
1316 size_t len
= strlen(value
);
1320 "User specified "X86_MACHINE_OEM_ID
" value is bigger than "
1325 strncpy(x86ms
->oem_id
, value
, 6);
1328 static char *x86_machine_get_oem_table_id(Object
*obj
, Error
**errp
)
1330 X86MachineState
*x86ms
= X86_MACHINE(obj
);
1332 return g_strdup(x86ms
->oem_table_id
);
1335 static void x86_machine_set_oem_table_id(Object
*obj
, const char *value
,
1338 X86MachineState
*x86ms
= X86_MACHINE(obj
);
1339 size_t len
= strlen(value
);
1343 "User specified "X86_MACHINE_OEM_TABLE_ID
1344 " value is bigger than "
1348 strncpy(x86ms
->oem_table_id
, value
, 8);
1351 static void x86_machine_get_bus_lock_ratelimit(Object
*obj
, Visitor
*v
,
1352 const char *name
, void *opaque
, Error
**errp
)
1354 X86MachineState
*x86ms
= X86_MACHINE(obj
);
1355 uint64_t bus_lock_ratelimit
= x86ms
->bus_lock_ratelimit
;
1357 visit_type_uint64(v
, name
, &bus_lock_ratelimit
, errp
);
1360 static void x86_machine_set_bus_lock_ratelimit(Object
*obj
, Visitor
*v
,
1361 const char *name
, void *opaque
, Error
**errp
)
1363 X86MachineState
*x86ms
= X86_MACHINE(obj
);
1365 visit_type_uint64(v
, name
, &x86ms
->bus_lock_ratelimit
, errp
);
1368 static void machine_get_sgx_epc(Object
*obj
, Visitor
*v
, const char *name
,
1369 void *opaque
, Error
**errp
)
1371 X86MachineState
*x86ms
= X86_MACHINE(obj
);
1372 SgxEPCList
*list
= x86ms
->sgx_epc_list
;
1374 visit_type_SgxEPCList(v
, name
, &list
, errp
);
1377 static void machine_set_sgx_epc(Object
*obj
, Visitor
*v
, const char *name
,
1378 void *opaque
, Error
**errp
)
1380 X86MachineState
*x86ms
= X86_MACHINE(obj
);
1383 list
= x86ms
->sgx_epc_list
;
1384 visit_type_SgxEPCList(v
, name
, &x86ms
->sgx_epc_list
, errp
);
1386 qapi_free_SgxEPCList(list
);
1389 static void x86_machine_initfn(Object
*obj
)
1391 X86MachineState
*x86ms
= X86_MACHINE(obj
);
1393 x86ms
->smm
= ON_OFF_AUTO_AUTO
;
1394 x86ms
->acpi
= ON_OFF_AUTO_AUTO
;
1395 x86ms
->pit
= ON_OFF_AUTO_AUTO
;
1396 x86ms
->pic
= ON_OFF_AUTO_AUTO
;
1397 x86ms
->pci_irq_mask
= ACPI_BUILD_PCI_IRQS
;
1398 x86ms
->oem_id
= g_strndup(ACPI_BUILD_APPNAME6
, 6);
1399 x86ms
->oem_table_id
= g_strndup(ACPI_BUILD_APPNAME8
, 8);
1400 x86ms
->bus_lock_ratelimit
= 0;
1401 x86ms
->above_4g_mem_start
= 4 * GiB
;
1404 static void x86_machine_class_init(ObjectClass
*oc
, void *data
)
1406 MachineClass
*mc
= MACHINE_CLASS(oc
);
1407 X86MachineClass
*x86mc
= X86_MACHINE_CLASS(oc
);
1408 NMIClass
*nc
= NMI_CLASS(oc
);
1410 mc
->cpu_index_to_instance_props
= x86_cpu_index_to_props
;
1411 mc
->get_default_cpu_node_id
= x86_get_default_cpu_node_id
;
1412 mc
->possible_cpu_arch_ids
= x86_possible_cpu_arch_ids
;
1413 x86mc
->save_tsc_khz
= true;
1414 x86mc
->fwcfg_dma_enabled
= true;
1415 nc
->nmi_monitor_handler
= x86_nmi
;
1417 object_class_property_add(oc
, X86_MACHINE_SMM
, "OnOffAuto",
1418 x86_machine_get_smm
, x86_machine_set_smm
,
1420 object_class_property_set_description(oc
, X86_MACHINE_SMM
,
1423 object_class_property_add(oc
, X86_MACHINE_ACPI
, "OnOffAuto",
1424 x86_machine_get_acpi
, x86_machine_set_acpi
,
1426 object_class_property_set_description(oc
, X86_MACHINE_ACPI
,
1429 object_class_property_add(oc
, X86_MACHINE_PIT
, "OnOffAuto",
1430 x86_machine_get_pit
,
1431 x86_machine_set_pit
,
1433 object_class_property_set_description(oc
, X86_MACHINE_PIT
,
1434 "Enable i8254 PIT");
1436 object_class_property_add(oc
, X86_MACHINE_PIC
, "OnOffAuto",
1437 x86_machine_get_pic
,
1438 x86_machine_set_pic
,
1440 object_class_property_set_description(oc
, X86_MACHINE_PIC
,
1441 "Enable i8259 PIC");
1443 object_class_property_add_str(oc
, X86_MACHINE_OEM_ID
,
1444 x86_machine_get_oem_id
,
1445 x86_machine_set_oem_id
);
1446 object_class_property_set_description(oc
, X86_MACHINE_OEM_ID
,
1447 "Override the default value of field OEMID "
1448 "in ACPI table header."
1449 "The string may be up to 6 bytes in size");
1452 object_class_property_add_str(oc
, X86_MACHINE_OEM_TABLE_ID
,
1453 x86_machine_get_oem_table_id
,
1454 x86_machine_set_oem_table_id
);
1455 object_class_property_set_description(oc
, X86_MACHINE_OEM_TABLE_ID
,
1456 "Override the default value of field OEM Table ID "
1457 "in ACPI table header."
1458 "The string may be up to 8 bytes in size");
1460 object_class_property_add(oc
, X86_MACHINE_BUS_LOCK_RATELIMIT
, "uint64_t",
1461 x86_machine_get_bus_lock_ratelimit
,
1462 x86_machine_set_bus_lock_ratelimit
, NULL
, NULL
);
1463 object_class_property_set_description(oc
, X86_MACHINE_BUS_LOCK_RATELIMIT
,
1464 "Set the ratelimit for the bus locks acquired in VMs");
1466 object_class_property_add(oc
, "sgx-epc", "SgxEPC",
1467 machine_get_sgx_epc
, machine_set_sgx_epc
,
1469 object_class_property_set_description(oc
, "sgx-epc",
1473 static const TypeInfo x86_machine_info
= {
1474 .name
= TYPE_X86_MACHINE
,
1475 .parent
= TYPE_MACHINE
,
1477 .instance_size
= sizeof(X86MachineState
),
1478 .instance_init
= x86_machine_initfn
,
1479 .class_size
= sizeof(X86MachineClass
),
1480 .class_init
= x86_machine_class_init
,
1481 .interfaces
= (InterfaceInfo
[]) {
1487 static void x86_machine_register_types(void)
1489 type_register_static(&x86_machine_info
);
1492 type_init(x86_machine_register_types
)