This sounds good. Will send update with others.

From: sean.brogan via [] [mailto:sean.brogan=microsoft.com@[]]
Sent: Sunday, March 8, 2020 6:14 AM
To: Chang, Abner (HPS SW/FW Technologist) <abner.chang@hpe.com>; devel@edk2.groups.io
Subject: Re: [edk2-devel] [edk2/master PATCH RISC-V CI v1 4/6] BaseTools: Enable RISC-V architecture for RISC-V EDK2 CI.

On Tue, Mar 3, 2020 at 10:02 PM, Abner Chang wrote:

BaseTools/Bin/gcc_riscv64_unknown_ext_dep.yaml

Web extdeps can have a hash so we are sure we get the expected file.  My opinion is for edk2 extdeps we should use this feature. 

https://github.com/tianocore/edk2-pytool-extensions/blob/master/docs/usability/using_extdep.md#sha256-optional

The rest of the changes look good. 
Thanks
Sean