Re: [PATCH v3 0/8] perf tools amd ibs: Fixes + Zen6 enhancements

[Namhyung Kim]

Hello,

On Fri, May 08, 2026 at 05:59:56AM +0000, Ravi Bangoria wrote:
> o Fix kernel version check in perf IBS unit test.
> o On Zen6 and newer platforms, skip perf unit test that assumes IBS don't
>   have hardware-assisted privilege filter.
> o Starting with Zen4, the validity of several IBS fields changes. Add
>   the required dependency checks when decoding IBS MSRs.
> o Zen6 and future platforms extends IBS OP with Streaming-Store and
>   Remote-Socket indicators for load/store instructions. Add decoding
>   support for these new bits.
> o Document new IBS features in perf-amd-ibs man page 
> 
> IBS Zen6 enhancements doc:
>   AMD64 Zen6 Instruction Based Sampling (IBS) Extensions and Features,
>   Pub. 69205 Rev. 1.00 March 2026 
>   https://bugzilla.kernel.org/attachment.cgi?id=310002
> 
> Patches are prepared on perf-tools-next/perf-tools-next (53bc03289278).
> 
> v2: https://lore.kernel.org/r/20260430061115.10266-1-ravi.bangoria@xxxxxxx  
> v2->v3:
>  - Instead of removing the priv modifier unit test completely, skip
>    it on platforms that supports hardware privilege filtering. (Namhyung)
>  - Rebased the series on latest perf-tools-next/perf-tools-next.
> 
> Ravi Bangoria (8):
>   perf test amd ibs: Fix incorrect kernel version check
>   perf tool ibs: Sync AMD IBS header file
>   perf test ibs: Skip privilege test on Zen6 and newer platforms
>   perf amd ibs: Suppress bogus TlbRefillLat and DCPhysAd on Zen4+
>   perf amd ibs: Make Fetch status bits dependent on PhyAddrValid for
>     newer platforms
>   perf amd ibs: Decode Remote-Socket flag in IBS OP raw dump
>   perf amd ibs: Decode Streaming-store flag in IBS OP raw dump
>   perf doc: Document new IBS capabilities in man page

Acked-by: Namhyung Kim <namhyung@xxxxxxxxxx>

Thanks,
Namhyung

> 
>  tools/arch/x86/include/asm/amd/ibs.h       |  4 +-
>  tools/perf/Documentation/perf-amd-ibs.txt  | 39 ++++++++++
>  tools/perf/arch/x86/tests/amd-ibs-period.c |  2 +-
>  tools/perf/tests/shell/amd-ibs-swfilt.sh   | 37 ++++++++-
>  tools/perf/util/amd-sample-raw.c           | 87 ++++++++++++++++++++--
>  5 files changed, 156 insertions(+), 13 deletions(-)
> 
> -- 
> 2.43.0
>