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Date: Wed, 1 Sep 2021 09:44:10 +0200
From: "Gerd Hoffmann" <kraxel@redhat.com>
To: "Xu, Min M" <min.m.xu@intel.com>
Cc: Ard Biesheuvel <ardb@kernel.org>,
	"devel@edk2.groups.io" <devel@edk2.groups.io>,
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Subject: Re: [edk2-devel] [PATCH V5 1/2] OvmfPkg: Introduce Tdx BFV/CFV PCDs and PcdOvmfImageSizeInKb
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  Hi,

> As to the spare part in varstore, it is not external input, is it?

It is part of the VARS file passed by the host to the guest.
With normal ovmf its part of the writable flash.  I'd consider
that external input, although I think nothing actually uses it
so it should just be a zero-filled block.

take care,
  Gerd