HP SureStart firmware protection

People have missed how insanely cool HP's SureStart firmware protection is. Runtime CFI validated by an security processor? I think only Apple has something that is similar. Here is a academic paper: https://t.co/0ucdqru14k feature docs: https://t.co/nKqpSy7XLb

— David Weston (DWIZZZLE) (@dwizzzleMSFT) February 5, 2018

They even a shadow stack for rearward CFI. Not sure if this a CPI derivative or what?

— David Weston (DWIZZZLE) (@dwizzzleMSFT) February 5, 2018