[PATCH OLK-6.6 0/3] Revert syscall performance degradation patches

10 May 2024


      This patch group has about 30% impact on syscall performance.

liwei (3):
  Revert "x86/bugs: Replace CONFIG_SPECTRE_BHI_{ON,OFF} with
    CONFIG_MITIGATION_SPECTRE_BHI"
  Revert "x86/bugs: Remove CONFIG_BHI_MITIGATION_AUTO and
    spectre_bhi=auto"
  Revert "x86: set SPECTRE_BHI_ON as default"

 Documentation/admin-guide/hw-vuln/spectre.rst |  4 ++++
 .../admin-guide/kernel-parameters.txt         |  3 +++
 arch/x86/Kconfig                              | 21 ++++++++++++++++---
 arch/x86/kernel/cpu/bugs.c                    | 10 ++++++++-
 4 files changed, 34 insertions(+), 4 deletions(-)

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2.25.1