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REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2303 Whenever a PCI device is discovered, PCI bus calls the EDKII_DEVICE_SECURITY_PROTOCOL to authenticate it. If the function returns success, the PCI bus allocates the resource and installs the PCI_IO for the device. If the function returns fail, the PCI bus skips the device. It is similar to EFI_SECURITY_ARCH_PROTOCOL, which is used to verify an EFI image. Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Hao A Wu <hao.a.wu@intel.com> Cc: Ray Ni <ray.ni@intel.com> Cc: Yun Lou <yun.lou@intel.com> Signed-off-by: Jiewen Yao <jiewen.yao@intel.com> Reviewed-by: Ray Ni <ray.ni@intel.com>