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 #ifdef NEED_CPU_H
  21 #include "qemu-kvm.h"
  22 #endif
  23
  24 #ifdef CONFIG_KVM
  25 #include <linux/kvm.h>
  26 #endif
  27
  28 extern int kvm_allowed;
  29
  30 #if defined CONFIG_KVM || !defined NEED_CPU_H
  31 #define kvm_enabled() (kvm_allowed)
  32 #else
  33 #define kvm_enabled() (0)
  34 #endif
  35
  36 #ifdef OBSOLETE_KVM_IMPL
  37 struct kvm_run;
  38
  39 /* external API */
  40
  41 int kvm_init(int smp_cpus);
  42 #endif /* OBSOLETE_KVM_IMPL */
  43
  44 int kvm_has_sync_mmu(void);
  45 int kvm_has_vcpu_events(void);
  46 int kvm_has_robust_singlestep(void);
  47 int kvm_has_debugregs(void);
  48 int kvm_has_xsave(void);
  49 int kvm_has_xcrs(void);
  50
  51 #ifdef NEED_CPU_H
  52 int kvm_init_vcpu(CPUState *env);
  53
  54 int kvm_cpu_exec(CPUState *env);
  55
  56 #if !defined(CONFIG_USER_ONLY)
  57 int kvm_log_start(target_phys_addr_t phys_addr, ram_addr_t size);
  58 int kvm_log_stop(target_phys_addr_t phys_addr, ram_addr_t size);
  59
  60 void kvm_cpu_register_phys_memory_client(void);
  61
  62 void kvm_setup_guest_memory(void *start, size_t size);
  63
  64 int kvm_coalesce_mmio_region(target_phys_addr_t start, ram_addr_t size);
  65 int kvm_uncoalesce_mmio_region(target_phys_addr_t start, ram_addr_t size);
  66 void kvm_flush_coalesced_mmio_buffer(void);
  67 #endif
  68
  69 int kvm_insert_breakpoint(CPUState *current_env, target_ulong addr,
  70                           target_ulong len, int type);
  71 int kvm_remove_breakpoint(CPUState *current_env, target_ulong addr,
  72                           target_ulong len, int type);
  73 void kvm_remove_all_breakpoints(CPUState *current_env);
  74 int kvm_update_guest_debug(CPUState *env, unsigned long reinject_trap);
  75 #ifndef _WIN32
  76 int kvm_set_signal_mask(CPUState *env, const sigset_t *sigset);
  77 #endif
  78
  79 int kvm_pit_in_kernel(void);
  80
  81 /* internal API */
  82
  83 struct KVMState;
  84 typedef struct KVMState KVMState;
  85
  86 int kvm_ioctl(KVMState *s, int type, ...);
  87
  88 int kvm_vm_ioctl(KVMState *s, int type, ...);
  89
  90 int kvm_vcpu_ioctl(CPUState *env, int type, ...);
  91
  92 /* Arch specific hooks */
  93
  94 int kvm_arch_post_run(CPUState *env, struct kvm_run *run);
  95
  96 int kvm_arch_handle_exit(CPUState *env, struct kvm_run *run);
  97
  98 int kvm_arch_pre_run(CPUState *env, struct kvm_run *run);
  99
 100 #ifdef OBSOLETE_KVM_IMPL
 101 int kvm_arch_process_irqchip_events(CPUState *env);
 102 #endif
 103
 104 int kvm_arch_get_registers(CPUState *env);
 105
 106 /* state subset only touched by the VCPU itself during runtime */
 107 #define KVM_PUT_RUNTIME_STATE   1
 108 /* state subset modified during VCPU reset */
 109 #define KVM_PUT_RESET_STATE     2
 110 /* full state set, modified during initialization or on vmload */
 111 #define KVM_PUT_FULL_STATE      3
 112
 113 int kvm_arch_put_registers(CPUState *env, int level);
 114
 115 int kvm_arch_init(KVMState *s, int smp_cpus);
 116
 117 int kvm_arch_init_vcpu(CPUState *env);
 118
 119 void kvm_arch_reset_vcpu(CPUState *env);
 120
 121 int kvm_on_sigbus_vcpu(CPUState *env, int code, void *addr);
 122 int kvm_on_sigbus(int code, void *addr);
 123
 124 struct kvm_guest_debug;
 125 struct kvm_debug_exit_arch;
 126
 127 struct kvm_sw_breakpoint {
 128     target_ulong pc;
 129     target_ulong saved_insn;
 130     int use_count;
 131     QTAILQ_ENTRY(kvm_sw_breakpoint) entry;
 132 };
 133
 134 QTAILQ_HEAD(kvm_sw_breakpoint_head, kvm_sw_breakpoint);
 135
 136 int kvm_arch_debug(struct kvm_debug_exit_arch *arch_info);
 137
 138 struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(CPUState *env,
 139                                                  target_ulong pc);
 140
 141 int kvm_sw_breakpoints_active(CPUState *env);
 142
 143 int kvm_arch_insert_sw_breakpoint(CPUState *current_env,
 144                                   struct kvm_sw_breakpoint *bp);
 145 int kvm_arch_remove_sw_breakpoint(CPUState *current_env,
 146                                   struct kvm_sw_breakpoint *bp);
 147 int kvm_arch_insert_hw_breakpoint(target_ulong addr,
 148                                   target_ulong len, int type);
 149 int kvm_arch_remove_hw_breakpoint(target_ulong addr,
 150                                   target_ulong len, int type);
 151 void kvm_arch_remove_all_hw_breakpoints(void);
 152
 153 void kvm_arch_update_guest_debug(CPUState *env, struct kvm_guest_debug *dbg);
 154
 155 bool kvm_arch_stop_on_emulation_error(CPUState *env);
 156
 157 int kvm_check_extension(KVMState *s, unsigned int extension);
 158
 159 uint32_t kvm_arch_get_supported_cpuid(CPUState *env, uint32_t function,
 160                                       uint32_t index, int reg);
 161 void kvm_cpu_synchronize_state(CPUState *env);
 162 void kvm_cpu_synchronize_post_reset(CPUState *env);
 163 void kvm_cpu_synchronize_post_init(CPUState *env);
 164
 165 /* generic hooks - to be moved/refactored once there are more users */
 166
 167 static inline void cpu_synchronize_state(CPUState *env)
 168 {
 169     if (kvm_enabled()) {
 170         kvm_cpu_synchronize_state(env);
 171     }
 172 }
 173
 174 static inline void cpu_synchronize_post_reset(CPUState *env)
 175 {
 176     if (kvm_enabled()) {
 177         kvm_cpu_synchronize_post_reset(env);
 178     }
 179 }
 180
 181 static inline void cpu_synchronize_post_init(CPUState *env)
 182 {
 183     if (kvm_enabled()) {
 184         kvm_cpu_synchronize_post_init(env);
 185     }
 186 }
 187
 188 #if !defined(CONFIG_USER_ONLY)
 189 int kvm_physical_memory_addr_from_ram(KVMState *s, ram_addr_t ram_addr,
 190                                       target_phys_addr_t *phys_addr);
 191 #endif
 192
 193 #endif
 194 int kvm_set_ioeventfd_mmio_long(int fd, uint32_t adr, uint32_t val, bool assign);
 195
 196 #if defined(KVM_IRQFD) && defined(CONFIG_KVM)
 197 int kvm_set_irqfd(int gsi, int fd, bool assigned);
 198 #else
 199 static inline
 200 int kvm_set_irqfd(int gsi, int fd, bool assigned)
 201 {
 202     return -ENOSYS;
 203 }
 204 #endif
 205
 206 int kvm_set_ioeventfd_pio_word(int fd, uint16_t adr, uint16_t val, bool assign);
 207
 208 int kvm_has_gsi_routing(void);
 209 int kvm_get_irq_route_gsi(void);
 210 int kvm_add_msix(uint32_t gsi, uint32_t addr_lo,
 211                  uint32_t addr_hi, uint32_t data);
 212 int kvm_del_msix(uint32_t gsi, uint32_t addr_lo,
 213                  uint32_t addr_hi, uint32_t data);
 214 int kvm_update_msix(uint32_t old_gsi, uint32_t old_addr_lo,
 215                     uint32_t old_addr_hi, uint32_t old_data,
 216                     uint32_t new_gsi, uint32_t new_addr_lo,
 217                     uint32_t new_addr_hi, uint32_t new_data);
 218 int kvm_commit_irq_routes(void);
 219
 220 int kvm_irqchip_in_kernel(void);
 221
 222 int kvm_set_irq(int irq, int level, int *status);
 223
 224 #endif