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/*
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 * QEMU KVM support
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 *
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 * Copyright IBM, Corp. 2008
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 *
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 * Authors:
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 *  Anthony Liguori   <aliguori@us.ibm.com>
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 *
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 * This work is licensed under the terms of the GNU GPL, version 2 or later.
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 * See the COPYING file in the top-level directory.
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 *
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 */
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#ifndef QEMU_KVM_H
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#define QEMU_KVM_H
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#include <stdbool.h>
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#include <errno.h>
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#include "config-host.h"
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#include "qemu-queue.h"
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#ifdef CONFIG_KVM
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#include <linux/kvm.h>
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#endif
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#ifdef CONFIG_KVM
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extern int kvm_allowed;
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#define kvm_enabled() (kvm_allowed)
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#else
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#define kvm_enabled() (0)
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#endif
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struct kvm_run;
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/* external API */
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int kvm_init(int smp_cpus);
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#ifdef NEED_CPU_H
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int kvm_init_vcpu(CPUState *env);
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int kvm_cpu_exec(CPUState *env);
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#if !defined(CONFIG_USER_ONLY)
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int kvm_log_start(target_phys_addr_t phys_addr, ram_addr_t size);
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int kvm_log_stop(target_phys_addr_t phys_addr, ram_addr_t size);
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int kvm_has_sync_mmu(void);
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int kvm_has_vcpu_events(void);
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int kvm_has_robust_singlestep(void);
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void kvm_setup_guest_memory(void *start, size_t size);
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int kvm_coalesce_mmio_region(target_phys_addr_t start, ram_addr_t size);
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int kvm_uncoalesce_mmio_region(target_phys_addr_t start, ram_addr_t size);
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void kvm_flush_coalesced_mmio_buffer(void);
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#endif
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int kvm_insert_breakpoint(CPUState *current_env, target_ulong addr,
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                          target_ulong len, int type);
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int kvm_remove_breakpoint(CPUState *current_env, target_ulong addr,
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                          target_ulong len, int type);
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void kvm_remove_all_breakpoints(CPUState *current_env);
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int kvm_update_guest_debug(CPUState *env, unsigned long reinject_trap);
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#ifndef _WIN32
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int kvm_set_signal_mask(CPUState *env, const sigset_t *sigset);
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#endif
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int kvm_pit_in_kernel(void);
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int kvm_irqchip_in_kernel(void);
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/* internal API */
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struct KVMState;
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typedef struct KVMState KVMState;
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int kvm_ioctl(KVMState *s, int type, ...);
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int kvm_vm_ioctl(KVMState *s, int type, ...);
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int kvm_vcpu_ioctl(CPUState *env, int type, ...);
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/* Arch specific hooks */
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int kvm_arch_post_run(CPUState *env, struct kvm_run *run);
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int kvm_arch_handle_exit(CPUState *env, struct kvm_run *run);
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int kvm_arch_pre_run(CPUState *env, struct kvm_run *run);
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int kvm_arch_get_registers(CPUState *env);
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/* state subset only touched by the VCPU itself during runtime */
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#define KVM_PUT_RUNTIME_STATE   1
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/* state subset modified during VCPU reset */
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#define KVM_PUT_RESET_STATE     2
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/* full state set, modified during initialization or on vmload */
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#define KVM_PUT_FULL_STATE      3
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int kvm_arch_put_registers(CPUState *env, int level);
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int kvm_arch_init(KVMState *s, int smp_cpus);
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int kvm_arch_init_vcpu(CPUState *env);
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void kvm_arch_reset_vcpu(CPUState *env);
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struct kvm_guest_debug;
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struct kvm_debug_exit_arch;
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struct kvm_sw_breakpoint {
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    target_ulong pc;
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    target_ulong saved_insn;
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    int use_count;
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    QTAILQ_ENTRY(kvm_sw_breakpoint) entry;
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};
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QTAILQ_HEAD(kvm_sw_breakpoint_head, kvm_sw_breakpoint);
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int kvm_arch_debug(struct kvm_debug_exit_arch *arch_info);
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struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(CPUState *env,
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                                                 target_ulong pc);
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int kvm_sw_breakpoints_active(CPUState *env);
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int kvm_arch_insert_sw_breakpoint(CPUState *current_env,
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                                  struct kvm_sw_breakpoint *bp);
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int kvm_arch_remove_sw_breakpoint(CPUState *current_env,
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                                  struct kvm_sw_breakpoint *bp);
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int kvm_arch_insert_hw_breakpoint(target_ulong addr,
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                                  target_ulong len, int type);
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int kvm_arch_remove_hw_breakpoint(target_ulong addr,
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                                  target_ulong len, int type);
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void kvm_arch_remove_all_hw_breakpoints(void);
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void kvm_arch_update_guest_debug(CPUState *env, struct kvm_guest_debug *dbg);
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int kvm_check_extension(KVMState *s, unsigned int extension);
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uint32_t kvm_arch_get_supported_cpuid(CPUState *env, uint32_t function,
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                                      int reg);
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void kvm_cpu_synchronize_state(CPUState *env);
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void kvm_cpu_synchronize_post_reset(CPUState *env);
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void kvm_cpu_synchronize_post_init(CPUState *env);
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/* generic hooks - to be moved/refactored once there are more users */
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static inline void cpu_synchronize_state(CPUState *env)
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{
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    if (kvm_enabled()) {
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        kvm_cpu_synchronize_state(env);
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    }
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}
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static inline void cpu_synchronize_post_reset(CPUState *env)
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{
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    if (kvm_enabled()) {
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        kvm_cpu_synchronize_post_reset(env);
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    }
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}
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static inline void cpu_synchronize_post_init(CPUState *env)
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{
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    if (kvm_enabled()) {
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        kvm_cpu_synchronize_post_init(env);
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    }
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}
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#if defined(KVM_IOEVENTFD) && defined(CONFIG_KVM)
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int kvm_set_ioeventfd_pio_word(int fd, uint16_t adr, uint16_t val, bool assign);
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#else
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static inline
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int kvm_set_ioeventfd_pio_word(int fd, uint16_t adr, uint16_t val, bool assign)
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{
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    return -ENOSYS;
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}
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#endif
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#endif
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#endif