mbox series

[J,0/2] Add new CPU-MF Counters for new IBM Z Hardware (LP: 1960117)

Message ID 20220223153141.1213938-1-frank.heimes@canonical.com
Headers show
Series Add new CPU-MF Counters for new IBM Z Hardware (LP: 1960117) | expand

Message

Frank Heimes Feb. 23, 2022, 3:31 p.m. UTC 
BugLink: https://bugs.launchpad.net/bugs/1960117

Add new CPU-MF Counters for new IBM Z Hardware.
In addition to the kernel, modifications in s390-tools and libpfm
are needed on top for exploitation.

Thomas Richter (2):
  s390/cpumf: Support for CPU Measurement Facility CSVN 7
  s390/cpumf: Support for CPU Measurement Sampling Facility LS bit

 arch/s390/include/asm/cpu_mf.h         | 4 +++-
 arch/s390/kernel/perf_cpum_cf_common.c | 4 ++--
 arch/s390/kernel/perf_cpum_cf_events.c | 6 +++---
 arch/s390/kernel/perf_cpum_sf.c        | 2 +-
 4 files changed, 9 insertions(+), 7 deletions(-)

Comments

Tim Gardner Feb. 23, 2022, 4 p.m. UTC | #1 
Is that a private bug link ?

On 2/23/22 08:31, frank.heimes@canonical.com wrote:
> BugLink: https://bugs.launchpad.net/bugs/1960117
> 
> Add new CPU-MF Counters for new IBM Z Hardware.
> In addition to the kernel, modifications in s390-tools and libpfm
> are needed on top for exploitation.
> 
> Thomas Richter (2):
>    s390/cpumf: Support for CPU Measurement Facility CSVN 7
>    s390/cpumf: Support for CPU Measurement Sampling Facility LS bit
> 
>   arch/s390/include/asm/cpu_mf.h         | 4 +++-
>   arch/s390/kernel/perf_cpum_cf_common.c | 4 ++--
>   arch/s390/kernel/perf_cpum_cf_events.c | 6 +++---
>   arch/s390/kernel/perf_cpum_sf.c        | 2 +-
>   4 files changed, 9 insertions(+), 7 deletions(-)
>
Frank Heimes Feb. 23, 2022, 4:04 p.m. UTC | #2 
Umpf - they are private by default.
Just made it public - sorry.
You should be able to see it now ...


On Wed, Feb 23, 2022 at 5:00 PM Tim Gardner <tim.gardner@canonical.com>
wrote:

> Is that a private bug link ?
>
> On 2/23/22 08:31, frank.heimes@canonical.com wrote:
> > BugLink: https://bugs.launchpad.net/bugs/1960117
> >
> > Add new CPU-MF Counters for new IBM Z Hardware.
> > In addition to the kernel, modifications in s390-tools and libpfm
> > are needed on top for exploitation.
> >
> > Thomas Richter (2):
> >    s390/cpumf: Support for CPU Measurement Facility CSVN 7
> >    s390/cpumf: Support for CPU Measurement Sampling Facility LS bit
> >
> >   arch/s390/include/asm/cpu_mf.h         | 4 +++-
> >   arch/s390/kernel/perf_cpum_cf_common.c | 4 ++--
> >   arch/s390/kernel/perf_cpum_cf_events.c | 6 +++---
> >   arch/s390/kernel/perf_cpum_sf.c        | 2 +-
> >   4 files changed, 9 insertions(+), 7 deletions(-)
> >
>
> --
> -----------
> Tim Gardner
> Canonical, Inc
>
Paolo Pisati March 8, 2022, 2:55 p.m. UTC | #3 
On Wed, Feb 23, 2022 at 04:31:39PM +0100, frank.heimes@canonical.com wrote:
> BugLink: https://bugs.launchpad.net/bugs/1960117

We got (and applied) the same patches in "[SRU][F][I][J][PATCH 0/2] kernel: Add
support for CPU-MF counter second version 7" from Krzysztof Kozlowski.