mbox series

[SRU,O,0/1] Disable CONFIG_TCG_TPM2_HMAC to avoid performance loss after v6.10

Message ID 20240911032740.2899777-1-aaron.ma@canonical.com
Headers show
Series Disable CONFIG_TCG_TPM2_HMAC to avoid performance loss after v6.10 | expand

Message

Aaron Ma Sept. 11, 2024, 3:27 a.m. UTC 
BugLink: https://bugs.launchpad.net/bugs/2080322

[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]
Tested on hardware, bootup is 7 sec as 6.8 noble kernel.

[Where problems could occur]
It may less security or break TPM.

Aaron Ma (1):
  UBUNTU: [Config] disable CONFIG_TCG_TPM2_HMAC by default

 debian.master/config/annotations | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)