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 VMs are trusted, for performance, this option can be set.

Defaults

• “n”

Kconfig definition

At arch/x86/Kconfig:307

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 VMs
      are trusted, for performance, this option can be set.

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