On Mon, Jul 23, 2018 at 05:25:03PM -0600, Bryan Steele wrote: > CVSROOT: /cvs > Module name: src > Changes by: [email protected] 2018/07/23 17:25:03 > > Modified files: > sys/arch/amd64/amd64: identcpu.c > sys/arch/amd64/include: specialreg.h > > Log message: > Add "Mitigation G-2" per AMD's Whitepaper "Software Techniques for > Managing Speculation on AMD Processors" > > By setting MSR C001_1029[1]=1, LFENCE becomes a dispatch serializing > instruction. > > Tested on AMD FX-4100 "Bulldozer", and Linux guest in SVM vmd(8) > > ok deraadt@ mlarkin@
This was also ok guenther@ :-)
