Re: [PATCH] tpm: add backend for mssim

[James Bottomley <jejb@linux.ibm.com>]

On Wed, 2022-12-14 at 11:52 +0000, Daniel P. Berrangé wrote:
> It is a shame there isn't a standardized protocol for software TPM
> communication, as that'd avoid the need for multiple backends.

Technically the mssim protocol is the standard, being part of the
reference implementation, but practically it's terrible:  Using two
ports per vTPM is hardly scalable in a cloud situation and, as you say,
it has no security.  Ideally someone with TCG connections would try to
standardize a more scalable network server protocol, something nicely
rest based that identified the vTPM by say its EK name.

James