Messages in this thread | | | Date | Wed, 20 Feb 2019 09:14:51 +0100 | From | Dominik Brodowski <> | Subject | Re: [PATCH] x86/asm: Pin sensitive CR4 bits |
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On Tue, Feb 19, 2019 at 04:54:49PM -0800, Kees Cook wrote: > diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c > index cb28e98a0659..7e0ea4470f8e 100644 > --- a/arch/x86/kernel/cpu/common.c > +++ b/arch/x86/kernel/cpu/common.c > @@ -312,10 +312,16 @@ static __init int setup_disable_smep(char *arg) > } > __setup("nosmep", setup_disable_smep); > > +volatile unsigned long cr4_pin __ro_after_init; > +EXPORT_SYMBOL_GPL(cr4_pin);
Where is this export needed?
Thanks, Dominik
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