** Changed in: linux-oem-6.11 (Ubuntu Noble)
Status: New => In Progress
** Changed in: linux (Ubuntu Oracular)
Status: New => In Progress
** Changed in: linux-oem-6.11 (Ubuntu Noble)
Assignee: (unassigned) => AaronMa (mapengyu)
** Description changed:
[Impact]
significant delays at bootup, the bootup time is 7 sec when this feature is
disabled,
but 20 sec when it's enabled.
[Fix]
v6.10-rc1 introduce encryption overhead to all kernel to TPM transactions,
Disable it by default until there is a real fix.
[Test]
- Vendor tested on hardware, bootup is 7 sec as 6.8 noble kernel.
+ Tested on hardware, bootup is 7 sec as 6.8 noble kernel.
[Where problems could occur]
It may less security or break TPM.
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https://bugs.launchpad.net/bugs/2080322
Title:
[SRU] Disable CONFIG_TCG_TPM2_HMAC to avoid performance loss after
v6.10
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