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stub: Add support for .ucode EFI addons

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This extends #31872 to also load microcode from addon files.
This commit is contained in:
Tobias Fleig
2024-07-03 05:13:29 -07:00
committed by Daan De Meyer
parent cd8eb9605f
commit fc31d929c7
4 changed files with 144 additions and 53 deletions
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10
docs/TPM2_PCR_MEASUREMENTS.md
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@@ -120,6 +120,16 @@ Devicetree addons are measured individually as a tagged event.
→ **Measured hash** covers the content of the Devicetree.
### PCR 12, `EV_EVENT_TAG`, "Ucode addons"
Ucode addons are measured individually as a tagged event.
→ **Event Tag** `0xdac08e1a`
→ **Description** the addon filename.
→ **Measured hash** covers the contents of the ucode initrd.
### PCR 12, `EV_IPL`, "Per-UKI Credentials initrd"
→ **Description** in the event log record is the constant string "Credentials