On 05/02/2017 12:05 PM, Marc-André Lureau wrote:
Hi

On Tue, May 2, 2017 at 3:53 PM Amarnath Valluri <amarnath.vall...@intel.com <mailto:amarnath.vall...@intel.com>> wrote:

    This change introduces a new TPM backend driver that can
    communicate with
    swtpm(software TPM emulator) using unix domain socket interface.

    Swtpm uses two unix sockets, one for plain TPM commands and
    responses, and one
    for out-of-band control messages.


Let's not forget to mention the external protocol this backend rely on:
https://github.com/stefanberger/swtpm/wiki/Control-Channel-Specification

The protocol documentation is quite limited.

(I still question the need to rely on a public protocol, and a seperate helper process project. If we had a qemu-swtpm, we could more easily evolve the protocol in the future)

And who is going to implement that qemu-swtpm? Obviously this discussion doesn't contribute to progress if nobody is doing that in the end.

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