[PATCH v2 0/7] x86: retbleed=stuff fixes

[Peter Zijlstra]

Hi all,

Patches to address the various callthunk fails reported by Joan.

The first two patches are new (and I've temporarily dropped the
restore_processor_state sealing).

It is my understanding that AP bringup will always use the 16bit trampoline
path, if this is not the case, please holler.