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 <errno.h>
  18 #include "config-host.h"
  19 #include "qemu-queue.h"
  20
  21 #ifdef CONFIG_KVM
  22 #include <linux/kvm.h>
  23 #endif
  24
  25 extern int kvm_allowed;
  26
  27 #if defined CONFIG_KVM || !defined NEED_CPU_H
  28 #define kvm_enabled() (kvm_allowed)
  29 #else
  30 #define kvm_enabled() (0)
  31 #endif
  32
  33 struct kvm_run;
  34
  35 /* external API */
  36
  37 int kvm_init(int smp_cpus);
  38
  39 int kvm_has_sync_mmu(void);
  40 int kvm_has_vcpu_events(void);
  41 int kvm_has_robust_singlestep(void);
  42 int kvm_has_debugregs(void);
  43 int kvm_has_xsave(void);
  44 int kvm_has_xcrs(void);
  45
  46 #ifdef NEED_CPU_H
  47 int kvm_init_vcpu(CPUState *env);
  48
  49 int kvm_cpu_exec(CPUState *env);
  50
  51 #if !defined(CONFIG_USER_ONLY)
  52 int kvm_log_start(target_phys_addr_t phys_addr, ram_addr_t size);
  53 int kvm_log_stop(target_phys_addr_t phys_addr, ram_addr_t size);
  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 void kvm_flush_coalesced_mmio_buffer(void);
  60 #endif
  61
  62 int kvm_insert_breakpoint(CPUState *current_env, target_ulong addr,
  63                           target_ulong len, int type);
  64 int kvm_remove_breakpoint(CPUState *current_env, target_ulong addr,
  65                           target_ulong len, int type);
  66 void kvm_remove_all_breakpoints(CPUState *current_env);
  67 int kvm_update_guest_debug(CPUState *env, unsigned long reinject_trap);
  68 #ifndef _WIN32
  69 int kvm_set_signal_mask(CPUState *env, const sigset_t *sigset);
  70 #endif
  71
  72 int kvm_pit_in_kernel(void);
  73 int kvm_irqchip_in_kernel(void);
  74
  75 /* internal API */
  76
  77 struct KVMState;
  78 typedef struct KVMState KVMState;
  79
  80 int kvm_ioctl(KVMState *s, int type, ...);
  81
  82 int kvm_vm_ioctl(KVMState *s, int type, ...);
  83
  84 int kvm_vcpu_ioctl(CPUState *env, int type, ...);
  85
  86 /* Arch specific hooks */
  87
  88 int kvm_arch_post_run(CPUState *env, struct kvm_run *run);
  89
  90 int kvm_arch_handle_exit(CPUState *env, struct kvm_run *run);
  91
  92 int kvm_arch_pre_run(CPUState *env, struct kvm_run *run);
  93
  94 int kvm_arch_process_irqchip_events(CPUState *env);
  95
  96 int kvm_arch_get_registers(CPUState *env);
  97
  98 /* state subset only touched by the VCPU itself during runtime */
  99 #define KVM_PUT_RUNTIME_STATE   1
 100 /* state subset modified during VCPU reset */
 101 #define KVM_PUT_RESET_STATE     2
 102 /* full state set, modified during initialization or on vmload */
 103 #define KVM_PUT_FULL_STATE      3
 104
 105 int kvm_arch_put_registers(CPUState *env, int level);
 106
 107 int kvm_arch_init(KVMState *s, int smp_cpus);
 108
 109 int kvm_arch_init_vcpu(CPUState *env);
 110
 111 void kvm_arch_reset_vcpu(CPUState *env);
 112
 113 int kvm_on_sigbus_vcpu(CPUState *env, int code, void *addr);
 114 int kvm_on_sigbus(int code, void *addr);
 115
 116 struct kvm_guest_debug;
 117 struct kvm_debug_exit_arch;
 118
 119 struct kvm_sw_breakpoint {
 120     target_ulong pc;
 121     target_ulong saved_insn;
 122     int use_count;
 123     QTAILQ_ENTRY(kvm_sw_breakpoint) entry;
 124 };
 125
 126 QTAILQ_HEAD(kvm_sw_breakpoint_head, kvm_sw_breakpoint);
 127
 128 int kvm_arch_debug(struct kvm_debug_exit_arch *arch_info);
 129
 130 struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(CPUState *env,
 131                                                  target_ulong pc);
 132
 133 int kvm_sw_breakpoints_active(CPUState *env);
 134
 135 int kvm_arch_insert_sw_breakpoint(CPUState *current_env,
 136                                   struct kvm_sw_breakpoint *bp);
 137 int kvm_arch_remove_sw_breakpoint(CPUState *current_env,
 138                                   struct kvm_sw_breakpoint *bp);
 139 int kvm_arch_insert_hw_breakpoint(target_ulong addr,
 140                                   target_ulong len, int type);
 141 int kvm_arch_remove_hw_breakpoint(target_ulong addr,
 142                                   target_ulong len, int type);
 143 void kvm_arch_remove_all_hw_breakpoints(void);
 144
 145 void kvm_arch_update_guest_debug(CPUState *env, struct kvm_guest_debug *dbg);
 146
 147 bool kvm_arch_stop_on_emulation_error(CPUState *env);
 148
 149 int kvm_check_extension(KVMState *s, unsigned int extension);
 150
 151 uint32_t kvm_arch_get_supported_cpuid(CPUState *env, uint32_t function,
 152                                       uint32_t index, int reg);
 153 void kvm_cpu_synchronize_state(CPUState *env);
 154 void kvm_cpu_synchronize_post_reset(CPUState *env);
 155 void kvm_cpu_synchronize_post_init(CPUState *env);
 156
 157 /* generic hooks - to be moved/refactored once there are more users */
 158
 159 static inline void cpu_synchronize_state(CPUState *env)
 160 {
 161     if (kvm_enabled()) {
 162         kvm_cpu_synchronize_state(env);
 163     }
 164 }
 165
 166 static inline void cpu_synchronize_post_reset(CPUState *env)
 167 {
 168     if (kvm_enabled()) {
 169         kvm_cpu_synchronize_post_reset(env);
 170     }
 171 }
 172
 173 static inline void cpu_synchronize_post_init(CPUState *env)
 174 {
 175     if (kvm_enabled()) {
 176         kvm_cpu_synchronize_post_init(env);
 177     }
 178 }
 179
 180
 181 #if !defined(CONFIG_USER_ONLY)
 182 int kvm_physical_memory_addr_from_ram(KVMState *s, ram_addr_t ram_addr,
 183                                       target_phys_addr_t *phys_addr);
 184 #endif
 185
 186 #endif
 187 int kvm_set_ioeventfd_mmio_long(int fd, uint32_t adr, uint32_t val, bool assign);
 188
 189 int kvm_set_ioeventfd_pio_word(int fd, uint16_t adr, uint16_t val, bool assign);
 190 #endif