kvm.h

   1 /*
   2  * QEMU KVM support
   3  *
   4  * Copyright IBM, Corp. 2008
   5  *
   6  * Authors:
   7  *  Anthony Liguori   <aliguori@us.ibm.com>
   8  *
   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.
  11  *
  12  */
  13
  14 #ifndef QEMU_KVM_H
  15 #define QEMU_KVM_H
  16
  17 #include "config.h"
  18 #include "qemu-queue.h"
  19 #include "qemu-kvm.h"
  20
  21 #ifdef CONFIG_KVM
  22 extern int kvm_allowed;
  23
  24 #define kvm_enabled() (kvm_allowed)
  25 #else
  26 #define kvm_enabled() (0)
  27 #endif
  28
  29 #ifdef KVM_UPSTREAM
  30 struct kvm_run;
  31
  32 /* external API */
  33
  34 int kvm_init(int smp_cpus);
  35 #endif /* KVM_UPSTREAM */
  36
  37 int kvm_init_vcpu(CPUState *env);
  38
  39 int kvm_cpu_exec(CPUState *env);
  40
  41 int kvm_log_start(target_phys_addr_t phys_addr, ram_addr_t size);
  42 int kvm_log_stop(target_phys_addr_t phys_addr, ram_addr_t size);
  43
  44 int kvm_has_sync_mmu(void);
  45 int kvm_has_vcpu_events(void);
  46 int kvm_has_robust_singlestep(void);
  47 int kvm_put_vcpu_events(CPUState *env);
  48 int kvm_get_vcpu_events(CPUState *env);
  49
  50 void kvm_cpu_register_phys_memory_client(void);
  51
  52 void kvm_setup_guest_memory(void *start, size_t size);
  53
  54 int kvm_coalesce_mmio_region(target_phys_addr_t start, ram_addr_t size);
  55 int kvm_uncoalesce_mmio_region(target_phys_addr_t start, ram_addr_t size);
  56 void kvm_flush_coalesced_mmio_buffer(void);
  57
  58 int kvm_insert_breakpoint(CPUState *current_env, target_ulong addr,
  59                           target_ulong len, int type);
  60 int kvm_remove_breakpoint(CPUState *current_env, target_ulong addr,
  61                           target_ulong len, int type);
  62 void kvm_remove_all_breakpoints(CPUState *current_env);
  63 int kvm_update_guest_debug(CPUState *env, unsigned long reinject_trap);
  64 int kvm_set_signal_mask(CPUState *env, const sigset_t *sigset);
  65
  66 int kvm_pit_in_kernel(void);
  67 int kvm_irqchip_in_kernel(void);
  68
  69 /* internal API */
  70
  71 struct KVMState;
  72 typedef struct KVMState KVMState;
  73
  74 int kvm_ioctl(KVMState *s, int type, ...);
  75
  76 int kvm_vm_ioctl(KVMState *s, int type, ...);
  77
  78 int kvm_vcpu_ioctl(CPUState *env, int type, ...);
  79
  80 /* Arch specific hooks */
  81
  82 int kvm_arch_post_run(CPUState *env, struct kvm_run *run);
  83
  84 int kvm_arch_handle_exit(CPUState *env, struct kvm_run *run);
  85
  86 int kvm_arch_pre_run(CPUState *env, struct kvm_run *run);
  87
  88 int kvm_arch_get_registers(CPUState *env);
  89
  90 /* state subset only touched by the VCPU itself during runtime */
  91 #define KVM_PUT_RUNTIME_STATE   1
  92 /* state subset modified during VCPU reset */
  93 #define KVM_PUT_RESET_STATE     2
  94 /* full state set, modified during initialization or on vmload */
  95 #define KVM_PUT_FULL_STATE      3
  96
  97 int kvm_arch_put_registers(CPUState *env, int level);
  98
  99 int kvm_arch_init(KVMState *s, int smp_cpus);
 100
 101 int kvm_arch_init_vcpu(CPUState *env);
 102
 103 void kvm_arch_reset_vcpu(CPUState *env);
 104
 105 struct kvm_guest_debug;
 106 struct kvm_debug_exit_arch;
 107
 108 struct kvm_sw_breakpoint {
 109     target_ulong pc;
 110     target_ulong saved_insn;
 111     int use_count;
 112     QTAILQ_ENTRY(kvm_sw_breakpoint) entry;
 113 };
 114
 115 QTAILQ_HEAD(kvm_sw_breakpoint_head, kvm_sw_breakpoint);
 116
 117 int kvm_arch_debug(struct kvm_debug_exit_arch *arch_info);
 118
 119 struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(CPUState *env,
 120                                                  target_ulong pc);
 121
 122 int kvm_sw_breakpoints_active(CPUState *env);
 123
 124 int kvm_arch_insert_sw_breakpoint(CPUState *current_env,
 125                                   struct kvm_sw_breakpoint *bp);
 126 int kvm_arch_remove_sw_breakpoint(CPUState *current_env,
 127                                   struct kvm_sw_breakpoint *bp);
 128 int kvm_arch_insert_hw_breakpoint(target_ulong addr,
 129                                   target_ulong len, int type);
 130 int kvm_arch_remove_hw_breakpoint(target_ulong addr,
 131                                   target_ulong len, int type);
 132 void kvm_arch_remove_all_hw_breakpoints(void);
 133
 134 void kvm_arch_update_guest_debug(CPUState *env, struct kvm_guest_debug *dbg);
 135
 136 int kvm_check_extension(KVMState *s, unsigned int extension);
 137
 138 uint32_t kvm_arch_get_supported_cpuid(CPUState *env, uint32_t function,
 139                                       int reg);
 140 void kvm_cpu_synchronize_state(CPUState *env);
 141 void kvm_cpu_synchronize_post_reset(CPUState *env);
 142 void kvm_cpu_synchronize_post_init(CPUState *env);
 143
 144 /* generic hooks - to be moved/refactored once there are more users */
 145
 146 static inline void cpu_synchronize_state(CPUState *env)
 147 {
 148     if (kvm_enabled()) {
 149         kvm_cpu_synchronize_state(env);
 150     }
 151 }
 152
 153 static inline void cpu_synchronize_post_reset(CPUState *env)
 154 {
 155     if (kvm_enabled()) {
 156         kvm_cpu_synchronize_post_reset(env);
 157     }
 158 }
 159
 160 static inline void cpu_synchronize_post_init(CPUState *env)
 161 {
 162     if (kvm_enabled()) {
 163         kvm_cpu_synchronize_post_init(env);
 164     }
 165 }
 166
 167 #endif