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Re: [Qemu-devel] [PATCH v2 9/9] tpm: Added support for TPM emulator

From: Amarnath Valluri
Subject: Re: [Qemu-devel] [PATCH v2 9/9] tpm: Added support for TPM emulator
Date: Mon, 10 Apr 2017 10:34:52 +0300
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.7.0

On 07.04.2017 18:11, Marc-André Lureau wrote:

On Fri, Apr 7, 2017 at 4:41 PM Daniel P. Berrange

    > +        .name = "data-path",
    > +        .type = QEMU_OPT_STRING,
    > +        .help = "Socket path to use for data exhange",
    > +    },
    > +    {
    > +        .name = "ctrl-path",
    > +        .type = QEMU_OPT_STRING,
    > +        .help = "Socket path to use for out-of-band control
    > +    },

    I'm still not convinced by the need for 2 separate UNIX sockets,
    there's a performance reason, but that looks unlikely.

We would also need something more than an implementation of the protocol that qemu is going to rely on as an external dependency. A protocol specification would help to start the discussion.
I would agree with you, Can we adopt the current swtpm's control interface as initial proposal.
Alternatively, I would suggest to not rely on a public protocol,
What do you mean by public protocol here, can you please help me understanding this.

- Amarnath

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