| From | Andy Lutomirski <> | Date | Wed, 1 Nov 2017 01:01:45 -0700 | Subject | Re: [PATCH 04/23] x86, tlb: make CR4-based TLB flushes more robust |
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On Tue, Oct 31, 2017 at 3:31 PM, Dave Hansen <dave.hansen@linux.intel.com> wrote: > > Our CR4-based TLB flush currently requries global pages to be > supported *and* enabled. But, we really only need for them to be > supported. Make the code more robust by alllowing X86_CR4_PGE to > clear as well as set. > > This change was suggested by Kirill Shutemov.
I may have missed something, but why would be ever have CR4.PGE off?
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