[PATCH 0/2] tpm_emulator: Signal swtpm to re-lock storage

[Stefan Berger]

Swtpm is being extended to release the lock on the storage where its state
is written to upon migration of the last one of its state blobs. Signal
swtpm to re-lock the storage upon migration fallback. An explicit signal
helps swtpm to re-lock the storage earlier because otherwise it would have
to wait for the next TPM command from the VM.

Releasing the lock on the storage is necessary for setups where the storage
holding the TPM state is shared between hosts.

Regards,
   Stefan

Stefan Berger (2):
  tpm_emulator: Use latest tpm_ioctl.h from swtpm project
  tpm_emulator: Have swtpm relock storage upon migration fall-back

 backends/tpm/tpm_emulator.c | 59 ++++++++++++++++++++++-
 backends/tpm/tpm_ioctl.h    | 96 +++++++++++++++++++++++++++++--------
 backends/tpm/trace-events   |  2 +
 3 files changed, 136 insertions(+), 21 deletions(-)

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2.37.2