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Differential D40460

bhyve: add execution command for tpm devices
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Authored by corvink on Jun 7 2023, 12:07 PM.

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jhb
markj

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Commits

rG29200a8133c0: bhyve: emulate TPM passthru by accessing /dev/tpmX

Summary

Executing a tpm command is as easy as writing the command to the tpm fd and reading back the result.

Diff Detail

Repository

rG FreeBSD src repository

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Unit

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Build Status

Buildable 52259
Build 49150: arc lint + arc unit

Event Timeline

corvink created this revision.Jun 7 2023, 12:07 PM

Herald added subscribers: bcran, rgrimes, imp. · View Herald TranscriptJun 7 2023, 12:07 PM

corvink requested review of this revision.Jun 7 2023, 12:07 PM

Harbormaster completed remote builds in B51952: Diff 122927.Jun 7 2023, 12:07 PM

corvink added a child revision: D40461: bhyve: trap crb register of tpm devices.Jun 7 2023, 12:09 PM

corvink added a parent revision: D40459: bhyve/tpm: add emulation for crb register.

markj added inline comments.Jun 8 2023, 3:41 PM

usr.sbin/bhyve/tpm_emul_passthru.c
71	Should you check `rsp_size >= sizeof(struct tpm_resp_hdr)` before doing anything?
74	`rsp_size` is unsigned, the last format should be `%u`. I'm surprised the compiler doesn't warn about it.

address markj's feedback

Harbormaster completed remote builds in B52259: Diff 123673.Jun 23 2023, 9:34 AM

corvink marked 2 inline comments as done.Jun 23 2023, 9:37 AM

markj accepted this revision as: markj.Jun 23 2023, 2:58 PM

markj added inline comments.

usr.sbin/bhyve/tpm_emul_passthru.c
71
78

This revision is now accepted and ready to land.Jun 23 2023, 2:58 PM

corvink added a child revision: D40462: bhyve: add qemu ppi emulation for tpm devices.Aug 10 2023, 7:24 AM

Closed by commit rG29200a8133c0: bhyve: emulate TPM passthru by accessing /dev/tpmX (authored by corvink). · Explain WhyAug 10 2023, 7:41 AM

This revision was automatically updated to reflect the committed changes.

corvink added a commit: rG29200a8133c0: bhyve: emulate TPM passthru by accessing /dev/tpmX.

Revision Contents
Changeset List

Path

Size

usr.sbin/

bhyve/

tpm_emul_passthru.c

38 lines

Diff 123673

usr.sbin/bhyve/tpm_emul_passthru.c

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