On Mon, 27 Nov 2017, Peter Zijlstra wrote: > On Mon, Nov 27, 2017 at 12:14:04AM +0100, Thomas Gleixner wrote: > > PAGE_NX and PAGE_GLOBAL might be not supported or disabled on the command > > line, but KAISER sets them unconditionally. > > So KAISER is x86_64 only, right? AFAIK there is no x86_64 without NX > support. So would it not make sense to mandate NX for KAISER?, that is > instead of making "noexec" + KAISER work, make "noexec" kill KAISER + > emit a warning. OTOH, disabling NX is a simple way to verify that DEBUG_WX works correctly also on the shadow maps. But surely we can drop the PAGE_GLOBAL thing, as all 64bit systems have it. Thanks, tglx -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
