Pull x86/microcode changes from Ingo Molnar:
 "The biggest changes are to AMD microcode patching: add code for
  caching all microcode patches which belong to the current family on
  which we're running, in the kernel.

  We look up the patch needed for each core from the cache at
  patch-application time instead of holding a single patch per-system"

* 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, microcode, AMD: Fix use after free in free_cache()
  x86, microcode, AMD: Rewrite patch application procedure
  x86, microcode, AMD: Add a small, per-family patches cache
  x86, microcode, AMD: Add reverse equiv table search
  x86, microcode: Add a refresh firmware flag to ->request_microcode_fw
  x86, microcode, AMD: Read CPUID(1).EAX on the correct cpu
  x86, microcode, AMD: Check before applying a patch
  x86, microcode, AMD: Remove useless get_ucode_data wrapper
  x86, microcode: Straighten out Kconfig text
  x86, microcode: Cleanup cpu hotplug notifier callback
  x86, microcode: Drop uci->mc check on resume path
  x86, microcode: Save an indentation level in reload_for_cpu