On Wed, 3 Apr 2019, Thomas Gleixner wrote: > On Wed, 3 Apr 2019, tip-bot for Peter Zijlstra wrote: > > > Commit-ID: d7262457e35dbe239659e62654e56f8ddb814bed > > Gitweb: https://git.kernel.org/tip/d7262457e35dbe239659e62654e56f8ddb814bed > > Author: Peter Zijlstra <peterz@xxxxxxxxxxxxx> > > AuthorDate: Thu, 21 Mar 2019 13:38:49 +0100 > > Committer: Ingo Molnar <mingo@xxxxxxxxxx> > > CommitDate: Wed, 3 Apr 2019 11:40:32 +0200 > > > > perf/x86/intel: Initialize TFA MSR > > > > Stephane reported that the TFA MSR is not initialized by the kernel, > > but the TFA bit could set by firmware or as a leftover from a kexec, > > which makes the state inconsistent. > > > > Reported-by: Stephane Eranian <eranian@xxxxxxxxxx> > > Tested-by: Nelson DSouza <nelson.dsouza@xxxxxxxxx> > > Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx> > > Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx> > > Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> > > Cc: Jiri Olsa <jolsa@xxxxxxxxxx> > > Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> > > Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> > > Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> > > Cc: Vince Weaver <vincent.weaver@xxxxxxxxx> > > Cc: tonyj@xxxxxxxx > > Link: https://lkml.kernel.org/r/20190321123849.GN6521@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx > > Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> > > This lacks: > > 1) Fixes tag > > 2) Cc: stable .... > > Sigh. It would also be nice to know what a "TFA" bit is without having to go find a copy of the Intel documentation. Vince
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