The HardwareInstance to target with this update. If value is zero it means match all HardwareInstances. This field allows update software to target only a single device in cases where there are more than one device with the same ImageTypeId GUID. This header is outside the signed data of the Authentication Info structure and therefore can be modified without changing the Auth data.
Passed as ImageIndex in call to EFI_FIRMWARE_MANAGEMENT_PROTOCOL.SetImage()
Size of the binary update image which immediately follows this structure
Used to identify device firmware targeted by this update. This guid is matched by system firmware against ImageTypeId field within a EFI_FIRMWARE_IMAGE_DESCRIPTOR
Size of the VendorCode bytes which optionally immediately follow binary update image in the capsule
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