  Integrating Field Programmable Gate Arrays (FPGAs) with cloud computing
instances is a rapidly emerging trend on commercial cloud computing platforms
such as Amazon Web Services (AWS), Huawei cloud, and Alibaba cloud. Cloud FPGAs
allow cloud users to build hardware accelerators to speed up the computation in
the cloud. However, since the cloud FPGA technology is still in its infancy,
the security implications of this integration of FPGAs in the cloud are not
clear. In this paper, we survey the emerging field of cloud FPGA security,
providing a comprehensive overview of the security issues related to cloud
FPGAs, and highlighting future challenges in this research area.
