Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx> writes: > There has been a lot of activity on the x86 front around the XSAVE > architecture which is used to context-switch processor state (among > other things). In addition, AMD has recently joined the protection > keys club by adding processor support for PKU. > > The AMD implementation helped uncover a kernel bug around the PKRU > "init state", which actually applied to Intel's implementation but > was just harder to hit. This series adds a test which is expected > to help find this class of bug both on AMD and Intel. All the work > around pkeys on x86 also uncovered a few bugs in the selftest. > > Any testing of this new code (especially from my powerpc friends) > would be appreciated. I tested this on ppc64. Tested-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxx> > > Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> > Cc: Ram Pai <linuxram@xxxxxxxxxx> > Cc: Sandipan Das <sandipan@xxxxxxxxxxxxx> > Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> > Cc: Florian Weimer <fweimer@xxxxxxxxxx> > Cc: "Desnes A. Nunes do Rosario" <desnesn@xxxxxxxxxxxxxxxxxx> > Cc: Ingo Molnar <mingo@xxxxxxxxxx> > Cc: Thiago Jung Bauermann <bauerman@xxxxxxxxxxxxx> > Cc: "Aneesh Kumar K.V" <aneesh.kumar@xxxxxxxxxxxxx> > Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx> > Cc: Michal Hocko <mhocko@xxxxxxxxxx> > Cc: Michal Suchanek <msuchanek@xxxxxxx> > Cc: Shuah Khan <shuah@xxxxxxxxxx> > Cc: x86@xxxxxxxxxx
