Ubuntu
thermald package

  1. Bug #1840454
  2. Comment #25

Comment 25 for bug 1840454

Revision history for this message
Srinivas Pandruvada (srinivas-pandruvada) wrote : Re: [Bug 1840454] Re: kernel 5.2 disallows thermald's direct MSR writes

On Sat, 2019-08-17 at 05:24 +0000, Anthony Wong wrote:
> On Sat, Aug 17, 2019 at 1:05 AM Srinivas Pandruvada <
> <email address hidden>> wrote:
>
> > The patch for changing TCC offset can only be in for 5.4 kernel.
> > Then
> > there will be no MSR access.
> >
>
> Is it https://lkml.org/lkml/2019/7/22/1286? Should it work when
> system is
> locked down?
 Yes.

>
>
> > So the option is to take out of mainline kernel patch to avoid this
> > or
> > avoid workaround option.
> >
>
> Isn't the workaround option no longer applies to TCC offset
> adjustment?
TCC adjustment is required for some platform, so either we wait for
kernel patch merged or live with lock down errors with MSR accesses.

Thanks,
Srinivas

>