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 "sys-queue.h"
  19 #include "libkvm-all.h"
  20
  21 #ifdef KVM_UPSTREAM
  22
  23 #ifdef CONFIG_KVM
  24 extern int kvm_allowed;
  25
  26 #define kvm_enabled() (kvm_allowed)
  27 #else
  28 #define kvm_enabled() (0)
  29 #endif
  30
  31 struct kvm_run;
  32
  33 /* external API */
  34
  35 int kvm_init(int smp_cpus);
  36
  37 int kvm_init_vcpu(CPUState *env);
  38 int kvm_sync_vcpus(void);
  39
  40 int kvm_cpu_exec(CPUState *env);
  41
  42 void kvm_set_phys_mem(target_phys_addr_t start_addr,
  43                       ram_addr_t size,
  44                       ram_addr_t phys_offset);
  45
  46 int kvm_physical_sync_dirty_bitmap(target_phys_addr_t start_addr,
  47                                    target_phys_addr_t end_addr);
  48
  49 int kvm_log_start(target_phys_addr_t phys_addr, ram_addr_t size);
  50 int kvm_log_stop(target_phys_addr_t phys_addr, ram_addr_t size);
  51 int kvm_set_migration_log(int enable);
  52
  53 int kvm_has_sync_mmu(void);
  54
  55 void kvm_setup_guest_memory(void *start, size_t size);
  56
  57 int kvm_coalesce_mmio_region(target_phys_addr_t start, ram_addr_t size);
  58 int kvm_uncoalesce_mmio_region(target_phys_addr_t start, ram_addr_t size);
  59
  60 int kvm_insert_breakpoint(CPUState *current_env, target_ulong addr,
  61                           target_ulong len, int type);
  62 int kvm_remove_breakpoint(CPUState *current_env, target_ulong addr,
  63                           target_ulong len, int type);
  64 void kvm_remove_all_breakpoints(CPUState *current_env);
  65 int kvm_update_guest_debug(CPUState *env, unsigned long reinject_trap);
  66
  67 /* internal API */
  68
  69 struct KVMState;
  70 typedef struct KVMState KVMState;
  71
  72 int kvm_ioctl(KVMState *s, int type, ...);
  73
  74 int kvm_vm_ioctl(KVMState *s, int type, ...);
  75
  76 int kvm_vcpu_ioctl(CPUState *env, int type, ...);
  77
  78 int kvm_get_mp_state(CPUState *env);
  79 int kvm_put_mp_state(CPUState *env);
  80
  81 /* Arch specific hooks */
  82
  83 int kvm_arch_post_run(CPUState *env, struct kvm_run *run);
  84
  85 int kvm_arch_handle_exit(CPUState *env, struct kvm_run *run);
  86
  87 int kvm_arch_pre_run(CPUState *env, struct kvm_run *run);
  88
  89 int kvm_arch_get_registers(CPUState *env);
  90
  91 int kvm_arch_put_registers(CPUState *env);
  92
  93 int kvm_arch_init(KVMState *s, int smp_cpus);
  94
  95 int kvm_arch_init_vcpu(CPUState *env);
  96
  97 struct kvm_guest_debug;
  98 struct kvm_debug_exit_arch;
  99
 100 struct kvm_sw_breakpoint {
 101     target_ulong pc;
 102     target_ulong saved_insn;
 103     int use_count;
 104     TAILQ_ENTRY(kvm_sw_breakpoint) entry;
 105 };
 106
 107 TAILQ_HEAD(kvm_sw_breakpoint_head, kvm_sw_breakpoint);
 108
 109 int kvm_arch_debug(struct kvm_debug_exit_arch *arch_info);
 110
 111 struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(CPUState *env,
 112                                                  target_ulong pc);
 113
 114 int kvm_sw_breakpoints_active(CPUState *env);
 115
 116 int kvm_arch_insert_sw_breakpoint(CPUState *current_env,
 117                                   struct kvm_sw_breakpoint *bp);
 118 int kvm_arch_remove_sw_breakpoint(CPUState *current_env,
 119                                   struct kvm_sw_breakpoint *bp);
 120 int kvm_arch_insert_hw_breakpoint(target_ulong addr,
 121                                   target_ulong len, int type);
 122 int kvm_arch_remove_hw_breakpoint(target_ulong addr,
 123                                   target_ulong len, int type);
 124 void kvm_arch_remove_all_hw_breakpoints(void);
 125
 126 void kvm_arch_update_guest_debug(CPUState *env, struct kvm_guest_debug *dbg);
 127
 128 int kvm_check_extension(KVMState *s, unsigned int extension);
 129
 130 uint32_t kvm_arch_get_supported_cpuid(CPUState *env, uint32_t function,
 131                                       int reg);
 132
 133 /* generic hooks - to be moved/refactored once there are more users */
 134
 135 static inline void cpu_synchronize_state(CPUState *env, int modified)
 136 {
 137     if (kvm_enabled()) {
 138         if (modified)
 139             kvm_arch_put_registers(env);
 140         else
 141             kvm_arch_get_registers(env);
 142     }
 143 }
 144
 145 #endif
 146
 147 #endif