Wouldn't the time taken by an easy syscall like getuid be a clear indicator?
OG. On Thu, Jan 11, 2018 at 8:17 PM, Dave Hansen <dave.han...@linux.intel.com> wrote: > On 01/11/2018 11:07 AM, Borislav Petkov wrote: >> On Thu, Jan 11, 2018 at 10:57:51AM -0800, Dave Hansen wrote: >>> I'd love to have a tool that tells you for sure "KPTI enabled or not", >>> but I'd also love to have it be something I can easily distribute >>> without it being handled like a WMD. >> You mean this: >> >> https://git.kernel.org/tip/87590ce6e373d1a5401f6539f0c59ef92dd924a9 > > I meant that works across all the kpti implementations. Those with gunk > in /sys, /proc/cpuinfo, or with nothing at all like the original KAISER > patches I posted. > > And, yes, I want a pony. I just though someone had such a pony handy > and it was trivial.
