Merge branch 'kvm-fixes-6.15-rc4' into HEAD

* Single fix for broken usage of 'multi-MIDR' infrastructure in PI
  code, adding an open-coded erratum check for Cavium ThunderX

* Bugfixes from a planned posted interrupt rework

* Do not use kvm_rip_read() unconditionally to cater for guests
  with inaccessible register state.