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Paolo Bonzini98c85732010-04-19 18:59:30 +00001/*
2 * QEMU KVM stub
3 *
4 * Copyright Red Hat, Inc. 2010
5 *
6 * Author: Paolo Bonzini <pbonzini@redhat.com>
7 *
8 * This work is licensed under the terms of the GNU GPL, version 2 or later.
9 * See the COPYING file in the top-level directory.
10 *
11 */
12
Peter Maydelld38ea872016-01-29 17:50:05 +000013#include "qemu/osdep.h"
Paolo Bonzini98c85732010-04-19 18:59:30 +000014#include "qemu-common.h"
Blue Swirl2b41f102011-06-19 20:38:22 +000015#include "cpu.h"
Paolo Bonzini9c17d612012-12-17 18:20:04 +010016#include "sysemu/kvm.h"
Paolo Bonzini98c85732010-04-19 18:59:30 +000017
Igor Mammedovc4cfef52013-04-23 10:29:35 +020018#ifndef CONFIG_USER_ONLY
19#include "hw/pci/msi.h"
20#endif
21
Jan Kiszka92b4e482012-05-17 10:32:33 -030022KVMState *kvm_state;
Jan Kiszkabbf3b802012-05-17 10:32:37 -030023bool kvm_kernel_irqchip;
Peter Maydell7ae26bd2012-07-26 15:35:11 +010024bool kvm_async_interrupts_allowed;
Nikolay Nikolaev69e03ae2014-05-27 15:03:35 +030025bool kvm_eventfds_allowed;
Peter Maydellcc7e0dd2012-07-26 15:35:14 +010026bool kvm_irqfds_allowed;
Eric Auger879904e2015-07-06 12:15:14 -060027bool kvm_resamplefds_allowed;
Peter Maydell614e41b2012-07-26 15:35:15 +010028bool kvm_msi_via_irqfd_allowed;
Peter Maydellf3e1bed2012-07-26 15:35:16 +010029bool kvm_gsi_routing_allowed;
Alexey Kardashevskiy76fe21d2013-09-03 18:08:25 +100030bool kvm_gsi_direct_mapping;
Igor Mammedov13eed942013-04-23 10:29:36 +020031bool kvm_allowed;
Jordan Justendf9c8b72013-05-29 01:27:25 -070032bool kvm_readonly_mem_allowed;
Jason Wang35108222015-11-06 16:02:46 +080033bool kvm_ioeventfd_any_length_allowed;
Jan Kiszka92b4e482012-05-17 10:32:33 -030034
Gu Zheng4c055ab2016-05-12 09:18:13 +053035int kvm_destroy_vcpu(CPUState *cpu)
36{
37 return -ENOSYS;
38}
39
Andreas Färber504134d2012-12-17 06:38:45 +010040int kvm_init_vcpu(CPUState *cpu)
Paolo Bonzini98c85732010-04-19 18:59:30 +000041{
42 return -ENOSYS;
43}
44
Paolo Bonzini98c85732010-04-19 18:59:30 +000045void kvm_flush_coalesced_mmio_buffer(void)
46{
47}
48
Andreas Färberdd1750d2013-05-01 13:45:44 +020049void kvm_cpu_synchronize_state(CPUState *cpu)
Paolo Bonzini98c85732010-04-19 18:59:30 +000050{
51}
52
Igor Mammedov3f24a582013-04-11 16:51:41 +020053void kvm_cpu_synchronize_post_reset(CPUState *cpu)
Paolo Bonzini98c85732010-04-19 18:59:30 +000054{
55}
56
Igor Mammedov3f24a582013-04-11 16:51:41 +020057void kvm_cpu_synchronize_post_init(CPUState *cpu)
Paolo Bonzini98c85732010-04-19 18:59:30 +000058{
59}
60
Andreas Färber1458c362013-05-26 23:46:55 +020061int kvm_cpu_exec(CPUState *cpu)
Paolo Bonzini98c85732010-04-19 18:59:30 +000062{
Andreas Färber1458c362013-05-26 23:46:55 +020063 abort();
Paolo Bonzini98c85732010-04-19 18:59:30 +000064}
65
66int kvm_has_sync_mmu(void)
67{
68 return 0;
69}
70
Stefan Hajnoczid2f2b8a2011-01-10 13:50:05 +020071int kvm_has_many_ioeventfds(void)
72{
73 return 0;
74}
75
Paolo Bonzini98c85732010-04-19 18:59:30 +000076void kvm_setup_guest_memory(void *start, size_t size)
77{
78}
79
Stefan Weil38e478e2013-07-25 20:50:21 +020080int kvm_update_guest_debug(CPUState *cpu, unsigned long reinject_trap)
Paolo Bonzini98c85732010-04-19 18:59:30 +000081{
Jan Kiszka4bef75b2011-06-08 16:11:04 +020082 return -ENOSYS;
Paolo Bonzini98c85732010-04-19 18:59:30 +000083}
84
Andreas Färber62278812013-06-27 17:12:06 +020085int kvm_insert_breakpoint(CPUState *cpu, target_ulong addr,
Paolo Bonzini98c85732010-04-19 18:59:30 +000086 target_ulong len, int type)
87{
88 return -EINVAL;
89}
90
Andreas Färber62278812013-06-27 17:12:06 +020091int kvm_remove_breakpoint(CPUState *cpu, target_ulong addr,
Paolo Bonzini98c85732010-04-19 18:59:30 +000092 target_ulong len, int type)
93{
94 return -EINVAL;
95}
96
Andreas Färber1d5791f2013-05-27 14:40:48 +020097void kvm_remove_all_breakpoints(CPUState *cpu)
Paolo Bonzini98c85732010-04-19 18:59:30 +000098{
99}
100
101#ifndef _WIN32
Andreas Färber491d6e82013-05-26 23:38:10 +0200102int kvm_set_signal_mask(CPUState *cpu, const sigset_t *sigset)
Paolo Bonzini98c85732010-04-19 18:59:30 +0000103{
104 abort();
105}
106#endif
107
Andreas Färber290adf32013-01-17 09:30:27 +0100108int kvm_on_sigbus_vcpu(CPUState *cpu, int code, void *addr)
Jan Kiszkaa1b87fe2011-02-01 22:15:51 +0100109{
110 return 1;
111}
112
Marcelo Tosattic0532a72010-10-11 15:31:21 -0300113int kvm_on_sigbus(int code, void *addr)
114{
115 return 1;
116}
Jan Kiszka92b4e482012-05-17 10:32:33 -0300117
Igor Mammedovc4cfef52013-04-23 10:29:35 +0200118#ifndef CONFIG_USER_ONLY
Pavel Fedindc9f06c2015-10-15 16:44:52 +0300119int kvm_irqchip_add_msi_route(KVMState *s, MSIMessage msg, PCIDevice *dev)
Jan Kiszka92b4e482012-05-17 10:32:33 -0300120{
121 return -ENOSYS;
122}
Jan Kiszka1e2aa8b2012-05-17 10:32:34 -0300123
Alexander Graf7b774592013-04-16 15:58:13 +0200124void kvm_init_irq_routing(KVMState *s)
125{
126}
127
Jan Kiszka1e2aa8b2012-05-17 10:32:34 -0300128void kvm_irqchip_release_virq(KVMState *s, int virq)
129{
130}
Jan Kiszka39853bb2012-05-17 10:32:36 -0300131
Pavel Fedindc9f06c2015-10-15 16:44:52 +0300132int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg,
133 PCIDevice *dev)
Michael S. Tsirkin078bbb52012-12-21 00:47:46 +0200134{
135 return -ENOSYS;
136}
137
Cornelia Huckd426d9f2013-07-15 17:45:03 +0200138int kvm_irqchip_add_adapter_route(KVMState *s, AdapterInfo *adapter)
139{
140 return -ENOSYS;
141}
142
Eric Auger1c9b71a2015-07-06 12:15:13 -0600143int kvm_irqchip_add_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
144 EventNotifier *rn, int virq)
Jan Kiszka39853bb2012-05-17 10:32:36 -0300145{
146 return -ENOSYS;
147}
148
Eric Auger1c9b71a2015-07-06 12:15:13 -0600149int kvm_irqchip_remove_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
150 int virq)
Paolo Bonzini15b2bd12012-07-05 17:16:30 +0200151{
152 return -ENOSYS;
153}
Igor Mammedovb8865592014-10-31 16:38:32 +0000154
155bool kvm_has_free_slot(MachineState *ms)
156{
157 return false;
158}
Igor Mammedovc4cfef52013-04-23 10:29:35 +0200159#endif