4 * Copyright IBM, Corp. 2008
7 * Anthony Liguori <aliguori@us.ibm.com>
9 * This work is licensed under the terms of the GNU GPL, version 2 or later.
10 * See the COPYING file in the top-level directory.
18 #include "config-host.h"
19 #include "qemu-queue.h"
22 #include <linux/kvm.h>
25 extern int kvm_allowed
;
26 extern bool kvm_kernel_irqchip
;
27 extern bool kvm_async_interrupts_allowed
;
29 #if defined CONFIG_KVM || !defined NEED_CPU_H
30 #define kvm_enabled() (kvm_allowed)
31 #define kvm_irqchip_in_kernel() (kvm_kernel_irqchip)
34 * kvm_async_interrupts_enabled:
36 * Returns: true if we can deliver interrupts to KVM
37 * asynchronously (ie by ioctl from any thread at any time)
38 * rather than having to do interrupt delivery synchronously
39 * (where the vcpu must be stopped at a suitable point first).
41 #define kvm_async_interrupts_enabled() (kvm_async_interrupts_allowed)
44 #define kvm_enabled() (0)
45 #define kvm_irqchip_in_kernel() (false)
46 #define kvm_async_interrupts_enabled() (false)
50 struct kvm_lapic_state
;
52 typedef struct KVMCapabilityInfo
{
57 #define KVM_CAP_INFO(CAP) { "KVM_CAP_" stringify(CAP), KVM_CAP_##CAP }
58 #define KVM_CAP_LAST_INFO { NULL, 0 }
61 typedef struct KVMState KVMState
;
62 extern KVMState
*kvm_state
;
68 int kvm_has_sync_mmu(void);
69 int kvm_has_vcpu_events(void);
70 int kvm_has_robust_singlestep(void);
71 int kvm_has_debugregs(void);
72 int kvm_has_xsave(void);
73 int kvm_has_xcrs(void);
74 int kvm_has_pit_state2(void);
75 int kvm_has_many_ioeventfds(void);
76 int kvm_has_gsi_routing(void);
78 int kvm_allows_irq0_override(void);
81 int kvm_init_vcpu(CPUArchState
*env
);
83 int kvm_cpu_exec(CPUArchState
*env
);
85 #if !defined(CONFIG_USER_ONLY)
86 void *kvm_vmalloc(ram_addr_t size
);
87 void *kvm_arch_vmalloc(ram_addr_t size
);
88 void kvm_setup_guest_memory(void *start
, size_t size
);
90 int kvm_coalesce_mmio_region(target_phys_addr_t start
, ram_addr_t size
);
91 int kvm_uncoalesce_mmio_region(target_phys_addr_t start
, ram_addr_t size
);
92 void kvm_flush_coalesced_mmio_buffer(void);
95 int kvm_insert_breakpoint(CPUArchState
*current_env
, target_ulong addr
,
96 target_ulong len
, int type
);
97 int kvm_remove_breakpoint(CPUArchState
*current_env
, target_ulong addr
,
98 target_ulong len
, int type
);
99 void kvm_remove_all_breakpoints(CPUArchState
*current_env
);
100 int kvm_update_guest_debug(CPUArchState
*env
, unsigned long reinject_trap
);
102 int kvm_set_signal_mask(CPUArchState
*env
, const sigset_t
*sigset
);
105 int kvm_on_sigbus_vcpu(CPUArchState
*env
, int code
, void *addr
);
106 int kvm_on_sigbus(int code
, void *addr
);
110 int kvm_ioctl(KVMState
*s
, int type
, ...);
112 int kvm_vm_ioctl(KVMState
*s
, int type
, ...);
114 int kvm_vcpu_ioctl(CPUArchState
*env
, int type
, ...);
116 /* Arch specific hooks */
118 extern const KVMCapabilityInfo kvm_arch_required_capabilities
[];
120 void kvm_arch_pre_run(CPUArchState
*env
, struct kvm_run
*run
);
121 void kvm_arch_post_run(CPUArchState
*env
, struct kvm_run
*run
);
123 int kvm_arch_handle_exit(CPUArchState
*env
, struct kvm_run
*run
);
125 int kvm_arch_process_async_events(CPUArchState
*env
);
127 int kvm_arch_get_registers(CPUArchState
*env
);
129 /* state subset only touched by the VCPU itself during runtime */
130 #define KVM_PUT_RUNTIME_STATE 1
131 /* state subset modified during VCPU reset */
132 #define KVM_PUT_RESET_STATE 2
133 /* full state set, modified during initialization or on vmload */
134 #define KVM_PUT_FULL_STATE 3
136 int kvm_arch_put_registers(CPUArchState
*env
, int level
);
138 int kvm_arch_init(KVMState
*s
);
140 int kvm_arch_init_vcpu(CPUArchState
*env
);
142 void kvm_arch_reset_vcpu(CPUArchState
*env
);
144 int kvm_arch_on_sigbus_vcpu(CPUArchState
*env
, int code
, void *addr
);
145 int kvm_arch_on_sigbus(int code
, void *addr
);
147 void kvm_arch_init_irq_routing(KVMState
*s
);
149 int kvm_set_irq(KVMState
*s
, int irq
, int level
);
150 int kvm_irqchip_send_msi(KVMState
*s
, MSIMessage msg
);
152 void kvm_irqchip_add_irq_route(KVMState
*s
, int gsi
, int irqchip
, int pin
);
154 void kvm_put_apic_state(DeviceState
*d
, struct kvm_lapic_state
*kapic
);
155 void kvm_get_apic_state(DeviceState
*d
, struct kvm_lapic_state
*kapic
);
157 struct kvm_guest_debug
;
158 struct kvm_debug_exit_arch
;
160 struct kvm_sw_breakpoint
{
162 target_ulong saved_insn
;
164 QTAILQ_ENTRY(kvm_sw_breakpoint
) entry
;
167 QTAILQ_HEAD(kvm_sw_breakpoint_head
, kvm_sw_breakpoint
);
169 struct kvm_sw_breakpoint
*kvm_find_sw_breakpoint(CPUArchState
*env
,
172 int kvm_sw_breakpoints_active(CPUArchState
*env
);
174 int kvm_arch_insert_sw_breakpoint(CPUArchState
*current_env
,
175 struct kvm_sw_breakpoint
*bp
);
176 int kvm_arch_remove_sw_breakpoint(CPUArchState
*current_env
,
177 struct kvm_sw_breakpoint
*bp
);
178 int kvm_arch_insert_hw_breakpoint(target_ulong addr
,
179 target_ulong len
, int type
);
180 int kvm_arch_remove_hw_breakpoint(target_ulong addr
,
181 target_ulong len
, int type
);
182 void kvm_arch_remove_all_hw_breakpoints(void);
184 void kvm_arch_update_guest_debug(CPUArchState
*env
, struct kvm_guest_debug
*dbg
);
186 bool kvm_arch_stop_on_emulation_error(CPUArchState
*env
);
188 int kvm_check_extension(KVMState
*s
, unsigned int extension
);
190 uint32_t kvm_arch_get_supported_cpuid(KVMState
*env
, uint32_t function
,
191 uint32_t index
, int reg
);
192 void kvm_cpu_synchronize_state(CPUArchState
*env
);
193 void kvm_cpu_synchronize_post_reset(CPUArchState
*env
);
194 void kvm_cpu_synchronize_post_init(CPUArchState
*env
);
196 /* generic hooks - to be moved/refactored once there are more users */
198 static inline void cpu_synchronize_state(CPUArchState
*env
)
201 kvm_cpu_synchronize_state(env
);
205 static inline void cpu_synchronize_post_reset(CPUArchState
*env
)
208 kvm_cpu_synchronize_post_reset(env
);
212 static inline void cpu_synchronize_post_init(CPUArchState
*env
)
215 kvm_cpu_synchronize_post_init(env
);
220 #if !defined(CONFIG_USER_ONLY)
221 int kvm_physical_memory_addr_from_host(KVMState
*s
, void *ram_addr
,
222 target_phys_addr_t
*phys_addr
);
226 int kvm_set_ioeventfd_mmio(int fd
, uint32_t adr
, uint32_t val
, bool assign
,
229 int kvm_set_ioeventfd_pio_word(int fd
, uint16_t adr
, uint16_t val
, bool assign
);
231 int kvm_irqchip_add_msi_route(KVMState
*s
, MSIMessage msg
);
232 void kvm_irqchip_release_virq(KVMState
*s
, int virq
);
234 int kvm_irqchip_add_irqfd(KVMState
*s
, int fd
, int virq
);
235 int kvm_irqchip_remove_irqfd(KVMState
*s
, int fd
, int virq
);
236 int kvm_irqchip_add_irq_notifier(KVMState
*s
, EventNotifier
*n
, int virq
);
237 int kvm_irqchip_remove_irq_notifier(KVMState
*s
, EventNotifier
*n
, int virq
);