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