[PATCH v1 1/8] docs: documentation and schema for the new TPM Proxy device
Daniel Henrique Barboza
danielhb413 at gmail.com
Mon May 11 11:26:53 UTC 2020
On 5/11/20 6:57 AM, Daniel P. Berrangé wrote:
> On Mon, May 11, 2020 at 11:22:57AM +1000, David Gibson wrote:
[...]
>> It's a different guest side interface, the H_TPM_COMM hypercall
>> instead of the other PAPR TPM interface. To which "why?" is a very
>> good question, but it's there now, so there's not much we can do about
>> it.
>
> That's ok. Even though its a different guest interface, it is still
> conceptually a TPM device at a high level, so we should be reusing
> the existing <tpm> device type. At most we should add a new backend
> type
I think adding a new backend type is sensible. Re-using the passthrough type
and making the differentiation with 'model', for a device that doesn't
operate exactly as a regular vTPM but can coexist with other vTPM devices,
will make for a lot of IFs in the code.
DHB
>
>
> Regards,
> Daniel
>
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