On April 19, 2022 10:08 AM, Yao Jiewen wrote: > > If TdxDxe breaks SEV, should we skip the TdxDxe in SEV path? > > I don't understand why we need use Cfg8. > In TdxDxe driver we need to relocate APs and it requires the TdxMailboxLib. The lib chain is that TdxMailbox -> SynchronizationLib -> TimerLib (which is DxeAcpiTimerLib) -> PciLib (Which was DxePciLibI440FxQ35). TdxDxe driver was loaded before AmdSevDxe so its lib constructors are called even it is in SEV-ES guest. In other words those lib constructor cannot be skipped in SEV-ES guest.
The analysis of the root cause (why DxePciLibI440FxQ35 trigger the broken) is in below link: https://edk2.groups.io/g/devel/message/88968 Thanks Min -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#89045): https://edk2.groups.io/g/devel/message/89045 Mute This Topic: https://groups.io/mt/90554139/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
