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