Hi Michael, I'm not sure that I agree with your last statement. The says that HardwareInstance is "Only present in version 3 or higher" in reference to the EFI_FIRMWARE_IMAGE_DESCRIPTOR. Isn't that the point of the DescriptorVersion parameter in FMP.GetImageInfo? To know if that field is event valid or not. The function in question even looks at this passed in FW image descriptor version (though the parameter is called FmpVersion). The code just sets it to 0 if the FmpVersion is < 3. If one or more devices producing FMPs in the system do not support FW image descriptor 3 or later, then this will cause an ASSERT.
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