Re: [Qemu-devel] [PATCH 2/3] tpm: Probe for connected TPM 1.2 or TPM 2

[Eric Blake]

On 04/12/2015 02:59 PM, Stefan Berger wrote:
> On 04/07/2015 04:54 AM, Xu, Quan wrote:
>>

>> In my opinion, I prefer to point out tpm_version in QEMU command line
>> options, then
>> tpm_util_test_tpmdev() tries to verify it.
> 
> The only reason why I am not doing this was that libvirt for example
> will need to probe for whether the additional parameter indicating the
> TPM version is supported. Besides that I thought it should be possible
> to probe on any platform and get a reliable result.
> 
> Maybe Eric has a comment. I have recently seen a discussion where an
> additional parameter to an existing option was to be added, but cannot
> remember which option that was.
> 

Hopefully, we are going to get introspection working for 2.4; at which
point, libvirt can use that to query what options are new to any other
command.  Meanwhile, doesn't query-tpm-models already serve as a way to
query additions on this front?

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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