SMBios configuration table not present until late stage of boot

["Tomas Pilar (tpilar)" <tpilar@solarflare.com>]

Hi,

I am trying to read the system UUID from the System Table (Type 1) in 
the SMBios set of tables. I am doing this during DriverBinding.Start() 
part of the UEFI_DRIVER initialisation. Unfortunately the 
gST->ConfigurationTable only contains 6 tables and SMBios is not one of 
them.

Once I boot into UEFI shell or start a PXE booting process, the 
gST->ConfigurationTable now contains 8 tables and SMBios is one of the 
two new tables. If I however only boot to a HDD, this never seems to 
happen.

Can someone offer some insight why this might be so and how would I go 
about forcing the platform to provide the SMBios in 
gST->ConfigurationTable at a sensible point?

Incidentally it seems ExitBootServices is not signaled on this platform 
if the boot goes through to HDD either, which is another strange thing ...

Cheers,
Tom