Merge tag 'x86_paravirt_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git...

Merge tag 'x86_paravirt_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 paravirt updates from Borislav Petkov:
 "Part one of a major conversion of the paravirt infrastructure to our
  kernel patching facilities and getting rid of the custom-grown ones"

* tag 'x86_paravirt_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/pv: Rework arch_local_irq_restore() to not use popf
  x86/xen: Drop USERGS_SYSRET64 paravirt call
  x86/pv: Switch SWAPGS to ALTERNATIVE
  x86/xen: Use specific Xen pv interrupt entry for DF
  x86/xen: Use specific Xen pv interrupt entry for MCE