block/raw-posix: use a character device if a block device is given
[qemu-dev-zwu.git] / kvm.h
blobd565dba1dafba279cb6bea0603b59bd021ff2f1e
1 /*
2 * QEMU KVM support
4 * Copyright IBM, Corp. 2008
6 * Authors:
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.
14 #ifndef QEMU_KVM_H
15 #define QEMU_KVM_H
17 #include <errno.h>
18 #include "config-host.h"
19 #include "qemu-queue.h"
21 #ifdef CONFIG_KVM
22 #include <linux/kvm.h>
23 #endif
25 extern int kvm_allowed;
27 #if defined CONFIG_KVM || !defined NEED_CPU_H
28 #define kvm_enabled() (kvm_allowed)
29 #else
30 #define kvm_enabled() (0)
31 #endif
33 struct kvm_run;
35 typedef struct KVMCapabilityInfo {
36 const char *name;
37 int value;
38 } KVMCapabilityInfo;
40 #define KVM_CAP_INFO(CAP) { "KVM_CAP_" stringify(CAP), KVM_CAP_##CAP }
41 #define KVM_CAP_LAST_INFO { NULL, 0 }
43 /* external API */
45 int kvm_init(void);
47 int kvm_has_sync_mmu(void);
48 int kvm_has_vcpu_events(void);
49 int kvm_has_robust_singlestep(void);
50 int kvm_has_debugregs(void);
51 int kvm_has_xsave(void);
52 int kvm_has_xcrs(void);
53 int kvm_has_many_ioeventfds(void);
55 #ifdef NEED_CPU_H
56 int kvm_init_vcpu(CPUState *env);
58 int kvm_cpu_exec(CPUState *env);
60 #if !defined(CONFIG_USER_ONLY)
61 void kvm_setup_guest_memory(void *start, size_t size);
63 int kvm_coalesce_mmio_region(target_phys_addr_t start, ram_addr_t size);
64 int kvm_uncoalesce_mmio_region(target_phys_addr_t start, ram_addr_t size);
65 void kvm_flush_coalesced_mmio_buffer(void);
66 #endif
68 int kvm_insert_breakpoint(CPUState *current_env, target_ulong addr,
69 target_ulong len, int type);
70 int kvm_remove_breakpoint(CPUState *current_env, target_ulong addr,
71 target_ulong len, int type);
72 void kvm_remove_all_breakpoints(CPUState *current_env);
73 int kvm_update_guest_debug(CPUState *env, unsigned long reinject_trap);
74 #ifndef _WIN32
75 int kvm_set_signal_mask(CPUState *env, const sigset_t *sigset);
76 #endif
78 int kvm_pit_in_kernel(void);
79 int kvm_irqchip_in_kernel(void);
81 int kvm_on_sigbus_vcpu(CPUState *env, int code, void *addr);
82 int kvm_on_sigbus(int code, void *addr);
84 /* internal API */
86 struct KVMState;
87 typedef struct KVMState KVMState;
88 extern KVMState *kvm_state;
90 int kvm_ioctl(KVMState *s, int type, ...);
92 int kvm_vm_ioctl(KVMState *s, int type, ...);
94 int kvm_vcpu_ioctl(CPUState *env, int type, ...);
96 /* Arch specific hooks */
98 extern const KVMCapabilityInfo kvm_arch_required_capabilities[];
100 void kvm_arch_pre_run(CPUState *env, struct kvm_run *run);
101 void kvm_arch_post_run(CPUState *env, struct kvm_run *run);
103 int kvm_arch_handle_exit(CPUState *env, struct kvm_run *run);
105 int kvm_arch_process_async_events(CPUState *env);
107 int kvm_arch_get_registers(CPUState *env);
109 /* state subset only touched by the VCPU itself during runtime */
110 #define KVM_PUT_RUNTIME_STATE 1
111 /* state subset modified during VCPU reset */
112 #define KVM_PUT_RESET_STATE 2
113 /* full state set, modified during initialization or on vmload */
114 #define KVM_PUT_FULL_STATE 3
116 int kvm_arch_put_registers(CPUState *env, int level);
118 int kvm_arch_init(KVMState *s);
120 int kvm_arch_init_vcpu(CPUState *env);
122 void kvm_arch_reset_vcpu(CPUState *env);
124 int kvm_arch_on_sigbus_vcpu(CPUState *env, int code, void *addr);
125 int kvm_arch_on_sigbus(int code, void *addr);
127 struct kvm_guest_debug;
128 struct kvm_debug_exit_arch;
130 struct kvm_sw_breakpoint {
131 target_ulong pc;
132 target_ulong saved_insn;
133 int use_count;
134 QTAILQ_ENTRY(kvm_sw_breakpoint) entry;
137 QTAILQ_HEAD(kvm_sw_breakpoint_head, kvm_sw_breakpoint);
139 struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(CPUState *env,
140 target_ulong pc);
142 int kvm_sw_breakpoints_active(CPUState *env);
144 int kvm_arch_insert_sw_breakpoint(CPUState *current_env,
145 struct kvm_sw_breakpoint *bp);
146 int kvm_arch_remove_sw_breakpoint(CPUState *current_env,
147 struct kvm_sw_breakpoint *bp);
148 int kvm_arch_insert_hw_breakpoint(target_ulong addr,
149 target_ulong len, int type);
150 int kvm_arch_remove_hw_breakpoint(target_ulong addr,
151 target_ulong len, int type);
152 void kvm_arch_remove_all_hw_breakpoints(void);
154 void kvm_arch_update_guest_debug(CPUState *env, struct kvm_guest_debug *dbg);
156 bool kvm_arch_stop_on_emulation_error(CPUState *env);
158 int kvm_check_extension(KVMState *s, unsigned int extension);
160 uint32_t kvm_arch_get_supported_cpuid(CPUState *env, uint32_t function,
161 uint32_t index, int reg);
162 void kvm_cpu_synchronize_state(CPUState *env);
163 void kvm_cpu_synchronize_post_reset(CPUState *env);
164 void kvm_cpu_synchronize_post_init(CPUState *env);
166 /* generic hooks - to be moved/refactored once there are more users */
168 static inline void cpu_synchronize_state(CPUState *env)
170 if (kvm_enabled()) {
171 kvm_cpu_synchronize_state(env);
175 static inline void cpu_synchronize_post_reset(CPUState *env)
177 if (kvm_enabled()) {
178 kvm_cpu_synchronize_post_reset(env);
182 static inline void cpu_synchronize_post_init(CPUState *env)
184 if (kvm_enabled()) {
185 kvm_cpu_synchronize_post_init(env);
190 #if !defined(CONFIG_USER_ONLY)
191 int kvm_physical_memory_addr_from_ram(KVMState *s, ram_addr_t ram_addr,
192 target_phys_addr_t *phys_addr);
193 #endif
195 #endif
196 int kvm_set_ioeventfd_mmio_long(int fd, uint32_t adr, uint32_t val, bool assign);
198 int kvm_set_ioeventfd_pio_word(int fd, uint16_t adr, uint16_t val, bool assign);
199 #endif