kvm-ioctls-v0.4.0

Added

• Support for unregistering ioeventfds through KVM_IOEVENTFD.

Changed

• Functions working with event FDs now require
  vmm_sys_util::eventfd::EventFd in their interface instead of
  RawFd.
• Functions working with FAM structs kvm_msr_list and kvm_msrs, were
  changed to work with their respective safe counterparts MsrList and
  respectively Msrs.
• Now exporting kvm_ioctls::Error type definition so that users of this
  crate can create their own wrapping errors without having to know the
  Error type used internally by this crate.
• No longer exporting kvm_ioctls::Result. Users of this crate should
  not have to use kvm_ioctls::Result outside the crate.
• kvm_ioctls::Error now works with errno::Error instead of io::Error.

Removed

• CpuId safe wrapper over FAM struct kvm_cpuid2. The safe wrapper is
  now provided by the kvm_bindings crate starting with v0.2.0.
• KVM_MAX_MSR_ENTRIES and MAX_KVM_CPUID_ENTRIES. Equivalent constants
  are provided by the kvm_bindings crate starting with v0.2.0.