RE: [Xen-devel] vTPM in dom0

["Cihula, Joseph" <joseph.cihula@xxxxxxxxx>]

On Sunday, March 16, 2008 6:59 PM, tgh wrote:
> hi
> I am interested in vtmp, and does xen3.1 support vtpm or not? i have got
> a hardware platform with tpm,i want to have a try with xen vtpm ,and i
> want to kown wether xen3.1 support vtpm or not ?
> or how to use it in xen3.1 or xen3.2 ？
> 
> Thanks

Xen has support vTPM since long before 3.1, but it is optional and not built by 
default.  Instructions for enabling and using it are in docs/misc/vtpm.txt and 
tools/vtpm_manager/README.

Joe

> 
> 
> 
> Tom Buhl 写道:
>> Hi,
>> 
>> yesterday I posted a question to the xen-users list concerning usage of the
>> TPM in dom0. 
>> This is the original message:
>> "I am using Xen 3.2.0 and want to use the TPM in dom0. I have activated vtpm
>> and everything runs fine in my domUs. 
>> The question is, how can I access the TPM in dom0? As far as I know
>> vtpm_managerd exclusively locks /dev/tpm0. As soon as I start vtpm_managerd
>> my own program cannot access the TPM anymore. Is there a vtpm instance for
>> dom0 like the ones for the user domains?"   
>> 
>> Anna Fischer replied with the suggestion to ask this list, if there has been
>> any development recently in that direction. Is there a way to use the TPM in
>> dom0?  
>> 
>> Thanks in advance,
>> 
>> Tom
>> 
> 
> 
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