lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-Id: <20230112200105.733466-1-kan.liang@linux.intel.com>
Date:   Thu, 12 Jan 2023 12:01:00 -0800
From:   kan.liang@...ux.intel.com
To:     peterz@...radead.org, mingo@...hat.com,
        linux-kernel@...r.kernel.org
Cc:     steve.wahl@....com, alexander.antonov@...ux.intel.com,
        ak@...ux.intel.com, eranian@...gle.com, namhyung@...nel.org,
        Kan Liang <kan.liang@...ux.intel.com>
Subject: [PATCH RESEND 0/5] Fix UPI uncore issue on SPR

From: Kan Liang <kan.liang@...ux.intel.com>

The discovery table of UPI on SPR MCC is broken. The patch series is
to mitigate the issue by providing a hardcode pre-defined table.

The broken discovery table can trigger a kernel warning message, which
is overkilled. The patch series also refine the error handling code.

Kan Liang (5):
  perf/x86/uncore: Factor out uncore_device_to_die()
  perf/x86/uncore: Fix potential NULL pointer in uncore_get_alias_name
  perf/x86/uncore: Ignore broken units in discovery table
  perf/x86/uncore: Add a quirk for UPI on SPR
  perf/x86/uncore: Don't WARN_ON_ONCE() for a broken discovery table

 arch/x86/events/intel/uncore.c           |  34 ++++-
 arch/x86/events/intel/uncore.h           |   4 +
 arch/x86/events/intel/uncore_discovery.c |  60 ++++++---
 arch/x86/events/intel/uncore_discovery.h |  14 +-
 arch/x86/events/intel/uncore_snbep.c     | 158 ++++++++++++++++++-----
 5 files changed, 210 insertions(+), 60 deletions(-)

-- 
2.35.1

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ