[PATCH v2 0/8] Speculation Control feature support, IBPB

[David Woodhouse]

Combining my previous patchset for purely adding the feature and MSR
definitions, with the first four patches that Karim sent out which were
purely about enabling IBPB. This gives us a full retpoline-based
mitigation for Spectre variant 2, and the IBRS option can come later.

I expect further discussion of the final patch to tweak precisely when
we use IBPB in context switch.

---
v2: Fix STIPB/STIBP typo
    Fix error in AMD CPUID bit definition (0x8000_0008 EBX[12])


Ashok Raj (1):
  x86/kvm: Add IBPB support

David Woodhouse (4):
  x86/cpufeatures: Add Intel feature bits for Speculation Control
  x86/cpufeatures: Add AMD feature bits for Prediction Command
  x86/msr: Add definitions for new speculation control MSRs
  x86/pti: Do not enable PTI on fixed Intel processors

Thomas Gleixner (2):
  x86/speculation: Add basic support for IBPB
  x86/speculation: Use Indirect Branch Prediction Barrier in context
    switch

Tim Chen (1):
  x86/mm: Only flush indirect branches when switching into non dumpable
    process

 arch/x86/include/asm/cpufeature.h        |  7 +++++--
 arch/x86/include/asm/cpufeatures.h       | 14 +++++++++++---
 arch/x86/include/asm/disabled-features.h |  3 ++-
 arch/x86/include/asm/msr-index.h         | 11 +++++++++++
 arch/x86/include/asm/nospec-branch.h     | 16 ++++++++++++++++
 arch/x86/include/asm/required-features.h |  3 ++-
 arch/x86/kernel/cpu/bugs.c               |  7 +++++++
 arch/x86/kernel/cpu/common.c             | 10 ++++++++--
 arch/x86/kernel/cpu/scattered.c          |  3 +--
 arch/x86/kvm/svm.c                       | 14 ++++++++++++++
 arch/x86/kvm/vmx.c                       | 11 +++++++++++
 arch/x86/mm/tlb.c                        | 21 ++++++++++++++++++++-
 12 files changed, 108 insertions(+), 12 deletions(-)

-- 
2.7.4