On Fri, 12 Jan 2018, Greg Kroah-Hartman wrote: > On Fri, Jan 12, 2018 at 12:03:10AM +0100, Thomas Gleixner wrote: > > So the transition to long mode for secondaries uses the trampoline pgd for > > long mode transition and then jumping to secondary_startup_64 where CR3 is > > set to the real kernel page tables. > > Ok, so the summary is that this patch is only needed for the 4.4 and 4.9 > kernels, and _NOT_ for Linus's tree and 4.14, right? Correct.