Merge tag 'x86-urgent-2023-12-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Ingo Molnar:

 - Fix a secondary CPUs enumeration regression caused by creative MADT
   APIC table entries on certain systems.

 - Fix a race in the NOP-patcher that can spuriously trigger crashes on
   bootup.

 - Fix a bootup failure regression caused by the parallel bringup code,
   caused by firmware inconsistency between the APIC initialization
   states of the boot and secondary CPUs, on certain systems.

* tag 'x86-urgent-2023-12-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/acpi: Handle bogus MADT APIC tables gracefully
  x86/alternatives: Disable interrupts and sync when optimizing NOPs in place
  x86/alternatives: Sync core before enabling interrupts
  x86/smpboot/64: Handle X2APIC BIOS inconsistency gracefully