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
  36 int kvm_cpu_exec(CPUState *env);
  37
  38 void kvm_set_phys_mem(target_phys_addr_t start_addr,
  39                       ram_addr_t size,
  40                       ram_addr_t phys_offset);
  41
  42 int kvm_physical_sync_dirty_bitmap(target_phys_addr_t start_addr,
  43                                    target_phys_addr_t end_addr);
  44
  45 int kvm_log_start(target_phys_addr_t phys_addr, ram_addr_t size);
  46 int kvm_log_stop(target_phys_addr_t phys_addr, ram_addr_t size);
  47 int kvm_set_migration_log(int enable);
  48
  49 int kvm_has_sync_mmu(void);
  50
  51 void kvm_setup_guest_memory(void *start, size_t size);
  52
  53 int kvm_coalesce_mmio_region(target_phys_addr_t start, ram_addr_t size);
  54 int kvm_uncoalesce_mmio_region(target_phys_addr_t start, ram_addr_t size);
  55
  56 int kvm_insert_breakpoint(CPUState *current_env, target_ulong addr,
  57                           target_ulong len, int type);
  58 int kvm_remove_breakpoint(CPUState *current_env, target_ulong addr,
  59                           target_ulong len, int type);
  60 void kvm_remove_all_breakpoints(CPUState *current_env);
  61 int kvm_update_guest_debug(CPUState *env, unsigned long reinject_trap);
  62
  63 int kvm_pit_in_kernel(void);
  64 int kvm_irqchip_in_kernel(void);
  65
  66 /* internal API */
  67
  68 struct KVMState;
  69 typedef struct KVMState KVMState;
  70
  71 int kvm_ioctl(KVMState *s, int type, ...);
  72
  73 int kvm_vm_ioctl(KVMState *s, int type, ...);
  74
  75 int kvm_vcpu_ioctl(CPUState *env, int type, ...);
  76
  77 int kvm_get_mp_state(CPUState *env);
  78 int kvm_put_mp_state(CPUState *env);
  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 int kvm_arch_put_registers(CPUState *env);
  91
  92 int kvm_arch_init(KVMState *s, int smp_cpus);
  93
  94 int kvm_arch_init_vcpu(CPUState *env);
  95
  96 struct kvm_guest_debug;
  97 struct kvm_debug_exit_arch;
  98
  99 struct kvm_sw_breakpoint {
 100     target_ulong pc;
 101     target_ulong saved_insn;
 102     int use_count;
 103     TAILQ_ENTRY(kvm_sw_breakpoint) entry;
 104 };
 105
 106 TAILQ_HEAD(kvm_sw_breakpoint_head, kvm_sw_breakpoint);
 107
 108 int kvm_arch_debug(struct kvm_debug_exit_arch *arch_info);
 109
 110 struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(CPUState *env,
 111                                                  target_ulong pc);
 112
 113 int kvm_sw_breakpoints_active(CPUState *env);
 114
 115 int kvm_arch_insert_sw_breakpoint(CPUState *current_env,
 116                                   struct kvm_sw_breakpoint *bp);
 117 int kvm_arch_remove_sw_breakpoint(CPUState *current_env,
 118                                   struct kvm_sw_breakpoint *bp);
 119 int kvm_arch_insert_hw_breakpoint(target_ulong addr,
 120                                   target_ulong len, int type);
 121 int kvm_arch_remove_hw_breakpoint(target_ulong addr,
 122                                   target_ulong len, int type);
 123 void kvm_arch_remove_all_hw_breakpoints(void);
 124
 125 void kvm_arch_update_guest_debug(CPUState *env, struct kvm_guest_debug *dbg);
 126
 127 int kvm_check_extension(KVMState *s, unsigned int extension);
 128
 129 uint32_t kvm_arch_get_supported_cpuid(CPUState *env, uint32_t function,
 130                                       int reg);
 131
 132 /* generic hooks - to be moved/refactored once there are more users */
 133
 134 static inline void cpu_synchronize_state(CPUState *env, int modified)
 135 {
 136     if (kvm_enabled()) {
 137         if (modified)
 138             kvm_arch_put_registers(env);
 139         else
 140             kvm_arch_get_registers(env);
 141     }
 142 }
 143
 144 #endif