qemu-kvm.h

   1 /*
   2  * qemu/kvm integration
   3  *
   4  * Copyright (C) 2006-2008 Qumranet Technologies
   5  *
   6  * Licensed under the terms of the GNU GPL version 2 or higher.
   7  */
   8 #ifndef THE_ORIGINAL_AND_TRUE_QEMU_KVM_H
   9 #define THE_ORIGINAL_AND_TRUE_QEMU_KVM_H
  10
  11 #include "cpu.h"
  12
  13 #include <signal.h>
  14
  15 int kvm_main_loop(void);
  16 int kvm_qemu_init(void);
  17 int kvm_qemu_create_context(void);
  18 int kvm_init_ap(void);
  19 int kvm_vcpu_inited(CPUState *env);
  20 void kvm_qemu_destroy(void);
  21 void kvm_load_registers(CPUState *env);
  22 void kvm_save_registers(CPUState *env);
  23 void kvm_load_mpstate(CPUState *env);
  24 void kvm_save_mpstate(CPUState *env);
  25 int kvm_cpu_exec(CPUState *env);
  26 int kvm_insert_breakpoint(CPUState *current_env, target_ulong addr,
  27                           target_ulong len, int type);
  28 int kvm_remove_breakpoint(CPUState *current_env, target_ulong addr,
  29                           target_ulong len, int type);
  30 void kvm_remove_all_breakpoints(CPUState *current_env);
  31 int kvm_update_guest_debug(CPUState *env, unsigned long reinject_trap);
  32 int kvm_qemu_init_env(CPUState *env);
  33 int kvm_qemu_check_extension(int ext);
  34 void kvm_apic_init(CPUState *env);
  35 /* called from vcpu initialization */
  36 void qemu_kvm_load_lapic(CPUState *env);
  37
  38 int kvm_set_irq(int irq, int level, int *status);
  39
  40 int kvm_physical_memory_set_dirty_tracking(int enable);
  41 int kvm_update_dirty_pages_log(void);
  42 int kvm_get_phys_ram_page_bitmap(unsigned char *bitmap);
  43
  44 void qemu_kvm_call_with_env(void (*func)(void *), void *data, CPUState *env);
  45 void qemu_kvm_cpuid_on_env(CPUState *env);
  46 void kvm_inject_interrupt(CPUState *env, int mask);
  47 void kvm_update_after_sipi(CPUState *env);
  48 void kvm_update_interrupt_request(CPUState *env);
  49 void kvm_cpu_register_physical_memory(target_phys_addr_t start_addr,
  50                                       unsigned long size,
  51                                       unsigned long phys_offset);
  52 void kvm_cpu_unregister_physical_memory(target_phys_addr_t start_addr,
  53                                         target_phys_addr_t size,
  54                                         unsigned long phys_offset);
  55 void *kvm_cpu_create_phys_mem(target_phys_addr_t start_addr,
  56                               unsigned long size, int log, int writable);
  57
  58 void kvm_cpu_destroy_phys_mem(target_phys_addr_t start_addr,
  59                               unsigned long size);
  60 void kvm_qemu_log_memory(target_phys_addr_t start, target_phys_addr_t size,
  61                          int log);
  62 int kvm_setup_guest_memory(void *area, unsigned long size);
  63 int kvm_qemu_create_memory_alias(uint64_t phys_start,
  64                                  uint64_t len,
  65                                  uint64_t target_phys);
  66 int kvm_qemu_destroy_memory_alias(uint64_t phys_start);
  67
  68 int kvm_arch_qemu_create_context(void);
  69
  70 void kvm_arch_save_regs(CPUState *env);
  71 void kvm_arch_load_regs(CPUState *env);
  72 void kvm_arch_load_mpstate(CPUState *env);
  73 void kvm_arch_save_mpstate(CPUState *env);
  74 int kvm_arch_qemu_init_env(CPUState *cenv);
  75 void kvm_arch_pre_kvm_run(void *opaque, CPUState *env);
  76 void kvm_arch_post_kvm_run(void *opaque, CPUState *env);
  77 int kvm_arch_has_work(CPUState *env);
  78 int kvm_arch_try_push_interrupts(void *opaque);
  79 void kvm_arch_push_nmi(void *opaque);
  80 void kvm_arch_update_regs_for_sipi(CPUState *env);
  81 void kvm_arch_cpu_reset(CPUState *env);
  82
  83 struct kvm_guest_debug;
  84 struct kvm_debug_exit_arch;
  85
  86 struct kvm_sw_breakpoint {
  87     target_ulong pc;
  88     target_ulong saved_insn;
  89     int use_count;
  90     TAILQ_ENTRY(kvm_sw_breakpoint) entry;
  91 };
  92 TAILQ_HEAD(kvm_sw_breakpoint_head, kvm_sw_breakpoint);
  93
  94 extern struct kvm_sw_breakpoint_head kvm_sw_breakpoints;
  95
  96 int kvm_arch_debug(struct kvm_debug_exit_arch *arch_info);
  97 struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(target_ulong pc);
  98 int kvm_arch_insert_sw_breakpoint(CPUState *current_env,
  99                                   struct kvm_sw_breakpoint *bp);
 100 int kvm_arch_remove_sw_breakpoint(CPUState *current_env,
 101                                   struct kvm_sw_breakpoint *bp);
 102 int kvm_arch_insert_hw_breakpoint(target_ulong addr,
 103                                   target_ulong len, int type);
 104 int kvm_arch_remove_hw_breakpoint(target_ulong addr,
 105                                   target_ulong len, int type);
 106 void kvm_arch_remove_all_hw_breakpoints(void);
 107 void kvm_arch_update_guest_debug(CPUState *env, struct kvm_guest_debug *dbg);
 108
 109 void qemu_kvm_aio_wait_start(void);
 110 void qemu_kvm_aio_wait(void);
 111 void qemu_kvm_aio_wait_end(void);
 112
 113 void qemu_kvm_notify_work(void);
 114
 115 void kvm_tpr_opt_setup(void);
 116 void kvm_tpr_access_report(CPUState *env, uint64_t rip, int is_write);
 117 void kvm_tpr_vcpu_start(CPUState *env);
 118
 119 int qemu_kvm_get_dirty_pages(unsigned long phys_addr, void *buf);
 120 int qemu_kvm_register_coalesced_mmio(target_phys_addr_t addr,
 121                                      unsigned int size);
 122 int qemu_kvm_unregister_coalesced_mmio(target_phys_addr_t addr,
 123                                        unsigned int size);
 124
 125 int kvm_coalesce_mmio_region(target_phys_addr_t start, ram_addr_t size);
 126 int kvm_uncoalesce_mmio_region(target_phys_addr_t start, ram_addr_t size);
 127
 128 int kvm_arch_init_irq_routing(void);
 129
 130 #ifdef USE_KVM_DEVICE_ASSIGNMENT
 131 struct ioperm_data;
 132
 133 void kvm_ioperm(CPUState *env, void *data);
 134 void kvm_add_ioperm_data(struct ioperm_data *data);
 135 void kvm_remove_ioperm_data(unsigned long start_port, unsigned long num);
 136 void kvm_arch_do_ioperm(void *_data);
 137 #endif
 138
 139 #define ALIGN(x, y)  (((x)+(y)-1) & ~((y)-1))
 140 #define BITMAP_SIZE(m) (ALIGN(((m)>>TARGET_PAGE_BITS), HOST_LONG_BITS) / 8)
 141
 142 #ifdef USE_KVM
 143 #include "libkvm-all.h"
 144 #include "sys-queue.h"
 145
 146 extern int kvm_allowed;
 147 extern int kvm_irqchip;
 148 extern int kvm_pit;
 149 extern int kvm_pit_reinject;
 150 extern int kvm_nested;
 151 extern kvm_context_t kvm_context;
 152
 153 struct ioperm_data {
 154     unsigned long start_port;
 155     unsigned long num;
 156     int turn_on;
 157     LIST_ENTRY(ioperm_data) entries;
 158 };
 159
 160 void qemu_kvm_cpu_stop(CPUState *env);
 161 int kvm_arch_halt(void *opaque, kvm_vcpu_context_t vcpu);
 162 int handle_tpr_access(void *opaque, kvm_vcpu_context_t vcpu,
 163                              uint64_t rip, int is_write);
 164 int kvm_has_sync_mmu(void);
 165
 166 #define kvm_enabled() (kvm_allowed)
 167 #define qemu_kvm_irqchip_in_kernel() kvm_irqchip_in_kernel(kvm_context)
 168 #define qemu_kvm_pit_in_kernel() kvm_pit_in_kernel(kvm_context)
 169 void kvm_init_vcpu(CPUState *env);
 170 void kvm_load_tsc(CPUState *env);
 171 #else
 172 #define kvm_enabled() (0)
 173 #define kvm_nested 0
 174 #define qemu_kvm_irqchip_in_kernel() (0)
 175 #define qemu_kvm_pit_in_kernel() (0)
 176 #define kvm_load_registers(env) do {} while(0)
 177 #define kvm_save_registers(env) do {} while(0)
 178 #define qemu_kvm_cpu_stop(env) do {} while(0)
 179 static inline void kvm_init_vcpu(CPUState *env) { }
 180 static inline void kvm_load_tsc(CPUState *env) {}
 181 #endif
 182
 183 void kvm_mutex_unlock(void);
 184 void kvm_mutex_lock(void);
 185
 186 static inline void kvm_sleep_begin(void)
 187 {
 188     if (kvm_enabled())
 189         kvm_mutex_unlock();
 190 }
 191
 192 static inline void kvm_sleep_end(void)
 193 {
 194     if (kvm_enabled())
 195         kvm_mutex_lock();
 196 }
 197
 198 static inline void kvm_set_phys_mem(target_phys_addr_t start_addr,
 199                       ram_addr_t size,
 200                       ram_addr_t phys_offset)
 201 {
 202     kvm_cpu_register_physical_memory(start_addr, size, phys_offset);
 203 }
 204
 205
 206 int kvm_physical_sync_dirty_bitmap(target_phys_addr_t start_addr, target_phys_addr_t end_addr);
 207
 208 int kvm_log_start(target_phys_addr_t phys_addr, target_phys_addr_t len);
 209 int kvm_log_stop(target_phys_addr_t phys_addr, target_phys_addr_t len);
 210
 211
 212 static inline int kvm_sync_vcpus(void) { return 0; }
 213
 214 static inline void kvm_arch_get_registers(CPUState *env)
 215 {
 216     kvm_save_registers(env);
 217     kvm_save_mpstate(env);
 218 }
 219
 220 static inline void kvm_arch_put_registers(CPUState *env)
 221 {
 222     kvm_load_registers(env);
 223     kvm_load_mpstate(env);
 224 }
 225
 226 static inline void cpu_synchronize_state(CPUState *env, int modified)
 227 {
 228     if (kvm_enabled()) {
 229         if (modified)
 230             kvm_arch_put_registers(env);
 231         else
 232             kvm_arch_get_registers(env);
 233     }
 234 }
 235
 236 uint32_t kvm_arch_get_supported_cpuid(CPUState *env, uint32_t function,
 237                                       int reg);
 238
 239
 240 static inline int kvm_set_migration_log(int enable)
 241 {
 242     return kvm_physical_memory_set_dirty_tracking(enable);
 243 }
 244
 245 #endif