CONFIG_MCE_ON_PSC_WORKAROUND_DISABLED

Force to disable software workaround for Machine Check Error on Page Size Change

Type: bool

Help

By default, software workaround for Machine Check Error on Page Size Change is conditionally applied to the models that may be affected by the issue. However, the software workaround has negative impact on performance. If all the guest OS kernels are trusted, this option may be set for performance.

Defaults

  • “n”

Kconfig definition

At arch/x86/Kconfig:345

Included via Kconfig:3

Menu path: (top menu)

config MCE_ON_PSC_WORKAROUND_DISABLED
    bool
    prompt "Force to disable software workaround for Machine Check Error on Page Size Change"
    default "n"
    help
      By default, software workaround for Machine Check Error on Page Size Change is
      conditionally applied to the models that may be affected by the issue. However,
      the software workaround has negative impact on performance. If all the guest OS
      kernels are trusted, this option may be set for performance.

(Definitions include propagated dependencies, including from if’s and menus.)