x86/ucode: Fixes and improvements to ucode revision handling

[PATCH 0/3] x86/ucode: Fixes and improvements to ucode revision handling

Andrew Cooper posted 3 patches 3 years, 5 months ago

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git fetch https://github.com/patchew-project/xen tags/patchew/20201026172519.17881-1-andrew.cooper3@citrix.com

docs/misc/xen-command-line.pandoc    |  7 ++++++-
xen/arch/x86/cpu/microcode/amd.c     | 25 ++++++++++++++-----------
xen/arch/x86/cpu/microcode/core.c    |  4 ++++
xen/arch/x86/cpu/microcode/intel.c   | 31 +++++++++++++++++++++++++++----
xen/arch/x86/cpu/microcode/private.h |  2 ++
5 files changed, 53 insertions(+), 16 deletions(-)

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[PATCH 0/3] x86/ucode: Fixes and improvements to ucode revision handling

Posted by Andrew Cooper 3 years, 5 months ago

Patch 2 fixes a bug with the Intel revision handling, which is causing
problems on IceLake SDPs.

Patch 3 adds ucode=allow-same to allow for sensible testing of the late
microcode loading path.

Andrew Cooper (3):
  x86/ucode: Break out compare_revisions() from existing infrastructure
  x86/ucode/intel: Fix handling of microcode revision
  x86/ucode: Introduce ucode=allow-same for testing purposes

 docs/misc/xen-command-line.pandoc    |  7 ++++++-
 xen/arch/x86/cpu/microcode/amd.c     | 25 ++++++++++++++-----------
 xen/arch/x86/cpu/microcode/core.c    |  4 ++++
 xen/arch/x86/cpu/microcode/intel.c   | 31 +++++++++++++++++++++++++++----
 xen/arch/x86/cpu/microcode/private.h |  2 ++
 5 files changed, 53 insertions(+), 16 deletions(-)

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2.11.0