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
  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 int kvm_log_start(target_phys_addr_t phys_addr, ram_addr_t size);
  39 int kvm_log_stop(target_phys_addr_t phys_addr, ram_addr_t size);
  40
  41 int kvm_has_sync_mmu(void);
  42 int kvm_has_vcpu_events(void);
  43
  44 void kvm_setup_guest_memory(void *start, size_t size);
  45
  46 int kvm_coalesce_mmio_region(target_phys_addr_t start, ram_addr_t size);
  47 int kvm_uncoalesce_mmio_region(target_phys_addr_t start, ram_addr_t size);
  48 void kvm_flush_coalesced_mmio_buffer(void);
  49
  50 int kvm_insert_breakpoint(CPUState *current_env, target_ulong addr,
  51                           target_ulong len, int type);
  52 int kvm_remove_breakpoint(CPUState *current_env, target_ulong addr,
  53                           target_ulong len, int type);
  54 void kvm_remove_all_breakpoints(CPUState *current_env);
  55 int kvm_update_guest_debug(CPUState *env, unsigned long reinject_trap);
  56 #ifndef _WIN32
  57 int kvm_set_signal_mask(CPUState *env, const sigset_t *sigset);
  58 #endif
  59
  60 int kvm_pit_in_kernel(void);
  61 int kvm_irqchip_in_kernel(void);
  62
  63 /* internal API */
  64
  65 struct KVMState;
  66 typedef struct KVMState KVMState;
  67
  68 int kvm_ioctl(KVMState *s, int type, ...);
  69
  70 int kvm_vm_ioctl(KVMState *s, int type, ...);
  71
  72 int kvm_vcpu_ioctl(CPUState *env, int type, ...);
  73
  74 /* Arch specific hooks */
  75
  76 int kvm_arch_post_run(CPUState *env, struct kvm_run *run);
  77
  78 int kvm_arch_handle_exit(CPUState *env, struct kvm_run *run);
  79
  80 int kvm_arch_pre_run(CPUState *env, struct kvm_run *run);
  81
  82 int kvm_arch_get_registers(CPUState *env);
  83
  84 int kvm_arch_put_registers(CPUState *env);
  85
  86 int kvm_arch_init(KVMState *s, int smp_cpus);
  87
  88 int kvm_arch_init_vcpu(CPUState *env);
  89
  90 void kvm_arch_reset_vcpu(CPUState *env);
  91
  92 struct kvm_guest_debug;
  93 struct kvm_debug_exit_arch;
  94
  95 struct kvm_sw_breakpoint {
  96     target_ulong pc;
  97     target_ulong saved_insn;
  98     int use_count;
  99     QTAILQ_ENTRY(kvm_sw_breakpoint) entry;
 100 };
 101
 102 QTAILQ_HEAD(kvm_sw_breakpoint_head, kvm_sw_breakpoint);
 103
 104 int kvm_arch_debug(struct kvm_debug_exit_arch *arch_info);
 105
 106 struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(CPUState *env,
 107                                                  target_ulong pc);
 108
 109 int kvm_sw_breakpoints_active(CPUState *env);
 110
 111 int kvm_arch_insert_sw_breakpoint(CPUState *current_env,
 112                                   struct kvm_sw_breakpoint *bp);
 113 int kvm_arch_remove_sw_breakpoint(CPUState *current_env,
 114                                   struct kvm_sw_breakpoint *bp);
 115 int kvm_arch_insert_hw_breakpoint(target_ulong addr,
 116                                   target_ulong len, int type);
 117 int kvm_arch_remove_hw_breakpoint(target_ulong addr,
 118                                   target_ulong len, int type);
 119 void kvm_arch_remove_all_hw_breakpoints(void);
 120
 121 void kvm_arch_update_guest_debug(CPUState *env, struct kvm_guest_debug *dbg);
 122
 123 int kvm_check_extension(KVMState *s, unsigned int extension);
 124
 125 uint32_t kvm_arch_get_supported_cpuid(CPUState *env, uint32_t function,
 126                                       int reg);
 127 void kvm_cpu_synchronize_state(CPUState *env);
 128
 129 /* generic hooks - to be moved/refactored once there are more users */
 130
 131 static inline void cpu_synchronize_state(CPUState *env)
 132 {
 133     if (kvm_enabled()) {
 134         kvm_cpu_synchronize_state(env);
 135     }
 136 }
 137
 138 #endif