There are two libraries: MdePkg/CpuLib and UefiCpuPkg/UefiCpuLib and UefiCpuPkg/UefiCpuLib will be merged to MdePkg/CpuLib. To avoid build failure, add CpuLib dependency to all modules that depend on UefiCpuLib. Cc: Ard Biesheuvel <ardb+tianocore@kernel.org> Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Yu Pu <yu.pu@intel.com> Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>