On Wed Jan 22, 2025 at 11:29 PM EET, Dionna Amalie Glaze wrote: > I can appreciate this viewpoint. It even surfaced Microsoft's fTPM > paper to me, which solves some interesting problems we need to solve > in SVSM too. So thanks for that. > > Just to clarify, you're not asking for SVSM to implement the TIS-MMIO > interface instead, but rather to use the fTPM stack, which could make > SVSM calls a TEE device operation? I don't really know what I'm asking because this is barely even a PoC, and I state it like this knowingly. You should make the argument, and the case for the solution. Then it is my turn to comment on that scheme. That said, I would not give high odds for acceptance of a duplicate TPM stack succeeding. BR, Jarkko