Hi Greg, Thanks for providing the review comments. Please find my response inline. > -----Original Message----- > From: Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> > Sent: Wednesday, June 9, 2021 3:25 PM > To: Nava kishore Manne <navam@xxxxxxxxxx> > Cc: robh+dt@xxxxxxxxxx; Michal Simek <michals@xxxxxxxxxx>; > mdf@xxxxxxxxxx; trix@xxxxxxxxxx; arnd@xxxxxxxx; Rajan Vaja > <RAJANV@xxxxxxxxxx>; Amit Sunil Dhamne <amitsuni@xxxxxxxxxxxxxxx>; > Tejas Patel <tejasp@xxxxxxxxxxxxxxx>; zou_wei@xxxxxxxxxx; Sai Krishna > Potthuri <lakshmis@xxxxxxxxxx>; Ravi Patel <RAVIPATE@xxxxxxxxxx>; > iwamatsu@xxxxxxxxxxx; Jiaying Liang <jliang@xxxxxxxxxx>; > devicetree@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; linux- > kernel@xxxxxxxxxxxxxxx; linux-fpga@xxxxxxxxxxxxxxx; git <git@xxxxxxxxxx>; > chinnikishore369@xxxxxxxxx > Subject: Re: [RFC v2 1/4] drivers: firmware: Add user encrypted key load API > support > > On Wed, Jun 09, 2021 at 11:22:29AM +0530, Nava kishore Manne wrote: > > This patch adds user encrypted key load API to support User key > > encrypted images loading use cases from Linux. > > What is "user key encrypted images"? Do we need more documentation > here for what this is and how to use it? > Xilinx bitstream writer, using AES, encrypts the bitstream. This feature allows user to encrypt bitstream using 256-bit AES encryption in cipher block chaining (CBC) mode. User can supply a 128-bit Initial Vector and 256-bit key(user key). For more info please refer here: https://www.xilinx.com/support/documentation/application_notes/xapp1239-fpga-bitstream-encryption.pdf > And why is "User" capitalized? > Will fix. Regards, Navakishore.