On Wed, Apr 03, 2019 at 11:34:04AM -0600, Khalid Aziz wrote: > diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt > index 858b6c0b9a15..9b36da94760e 100644 > --- a/Documentation/admin-guide/kernel-parameters.txt > +++ b/Documentation/admin-guide/kernel-parameters.txt > @@ -2997,6 +2997,12 @@ > > nox2apic [X86-64,APIC] Do not enable x2APIC mode. > > + noxpfo [XPFO] Disable eXclusive Page Frame Ownership (XPFO) > + when CONFIG_XPFO is on. Physical pages mapped into > + user applications will also be mapped in the > + kernel's address space as if CONFIG_XPFO was not > + enabled. > + > cpu0_hotplug [X86] Turn on CPU0 hotplug feature when > CONFIG_BO OTPARAM_HOTPLUG_CPU0 is off. > Some features depend on CPU0. Known dependencies are: Given the big performance impact that XPFO can have. It should be off by default when configured. Instead, the xpfo option should be used to enable it. Cheers, Longman
