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Differential D19712

tpm: Add a cv_wait to the harvesting function.
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Authored by kd on Mar 26 2019, 11:57 AM.
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mw
mst_semihalf.com
markm
delphij
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rS345842: Add a cv_wait to the TPM2.0 harvesting function
Summary

Harvesting has to compete for the TPM chip with userspace.
Before this change the callout could hijack an unread buffer causing a userspace call to the TPM to fail.

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rS FreeBSD src repository - subversion
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Event Timeline

kd created this revision.Mar 26 2019, 11:57 AM
Herald added a subscriber: imp. · View Herald TranscriptMar 26 2019, 11:57 AM
delphij accepted this revision.Apr 3 2019, 7:40 AM
This revision is now accepted and ready to land.Apr 3 2019, 7:40 AM
Closed by commit rS345842: Add a cv_wait to the TPM2.0 harvesting function (authored by mw). · Explain WhyApr 3 2019, 8:23 AM
This revision was automatically updated to reflect the committed changes.

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head/
sys/
dev/
tpm/
2 lines

Diff 55767

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head/sys/dev/tpm/tpm20.c

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