[Xen-users] vtpm_manager can't run twice in a row

[Luke <secureboot@xxxxxxxxx>]

I can get vtpm_manager to run if I delete /var/vtpm/VTPM.  However, when
I kill it with control-c, and try to run it again, I get:

INFO[VTPM]: Starting VTPM.
INFO[TCS]: Constructing new TCS:
INFO[TCS]: Calling TCS_OpenContext:
INFO[VTSP]: OIAP.
INFO[VTSP]: Loading Key into TPM.
INFO[VTSP]: Unbinding 256 bytes of data.
ERROR in VTSP_Unbind at vtsp.c:720 code: TPM_BAD_PARAMETER.
ERROR in envelope_decrypt at securestorage.c:156 code: TPM_BAD_PARAMETER.
ERROR[VTPM]: Failed to envelope decrypt data
.ERROR in VTPM_LoadManagerData at securestorage.c:459 code:
TPM_BAD_PARAMETER.
ERROR[VTPM]: Failed to load service data with error = TPM_BAD_PARAMETER
ERROR[VTPM]: Failed to read existing manager file


What's causing this, and how do I fix it?  I need my guest to get the
same VTPM every time it starts, so that keys (signing and SRK) persist
across instances.

-- 
Luke

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