Method ToDmaRegion

tests/unit_test/mocks/io_buffer_mock.cpp:48–54

auto IoBuffer::IsValid() const -> bool { return data_ != nullptr; }

auto IoBuffer::ToDmaRegion(VirtToPhysFunc v2p) const -> DmaRegion {
  return DmaRegion{
      .virt = data_,
      .phys = v2p(reinterpret_cast<uintptr_t>(data_)),
      .size = size_,
  };
}