[0/7] x86/ucode: Cleanup and fixes - Part 3/n (Intel)

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Andrew Cooper March 23, 2020, 10:17 a.m. UTC

This focuses on the Intel ucode driver, removing the gratuitous memory
allocations and indirection, as well as minor fixes in other areas of the
logic.

It depends on both the Part 1 and 2 series, and hopefully better demonstrates
why making struct microcode_patch opaque is a sensible move forward.

Andrew Cooper (7):
  x86/ucode: Document the behaviour of the microcode_ops hooks
  x86/ucode/intel: Adjust microcode_sanity_check() to not take void *
  x86/ucode/intel: Remove gratuitous memory allocations from cpu_request_microcode()
  x86/ucode/intel: Reimplement get_{data,total}size() helpers
  x86/ucode/intel: Clean up microcode_update_match()
  x86/ucode/intel: Clean up microcode_sanity_check()
  x86/ucode/intel: Fold structures together

 xen/arch/x86/cpu/microcode/intel.c   | 371 +++++++++++++++--------------------
 xen/arch/x86/cpu/microcode/private.h |  46 +++++
 xen/include/asm-x86/microcode.h      |   5 +
 3 files changed, 214 insertions(+), 208 deletions(-)