linux-kernel - [PATCH v3 0/4] x86/mce, EDAC/mce_amd: Support extended MCA

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]

Date:   Fri, 11 Feb 2022 16:34:38 -0600
From:   Smita Koralahalli <Smita.KoralahalliChannabasappa@....com>
To:     <x86@...nel.org>, <linux-edac@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
CC:     Tony Luck <tony.luck@...el.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "H . Peter Anvin" <hpa@...or.com>,
        James Morse <james.morse@....com>,
        Robert Richter <rric@...nel.org>,
        Yazen Ghannam <yazen.ghannam@....com>,
        Smita Koralahalli <Smita.KoralahalliChannabasappa@....com>
Subject: [PATCH v3 0/4] x86/mce, EDAC/mce_amd: Support extended MCA_ADDR address on SMCA systems

This series of patches adds support for extended physical address on newer
AMD processors such as AMD 'Milan'. It also, suggests to cache
MCA_CONFIG[McaX] similar to MCA_CONFIG[McaLsbInStatusSupported] to avoid
reading MCA_CONFIG register each time.

The first patch defines a separate helper function to extract
MCA_ADDR[ErrorAddr].

The second patch adds support for extended ErrorAddr bits in MCA_ADDR.

Third patch, caches MCA_CONFIG[McaX] similar to
MCA_CONFIG[McaLsbInStatusSupported] in the existing mce_bank struct.

Last patch, fixes unnecessary padding in mce_bank struct.

Link:
https://lkml.kernel.org/r/20210625013553.231528-1-Smita.KoralahalliChannabasappa@amd.com

Smita Koralahalli (4):
  x86/mce: Define function to extract ErrorAddr from MCA_ADDR
  x86/mce: Add support for Extended Physical Address MCA changes
  x86/mce, EDAC/mce_amd: Cache MCA_CONFIG[McaX] in struct mce_bank
  x86/mce: Avoid unnecessary padding in struct mce_bank

 arch/x86/include/asm/mce.h         | 14 +++----
 arch/x86/kernel/cpu/mce/amd.c      | 59 +++++++++++++++++++++++-------
 arch/x86/kernel/cpu/mce/core.c     | 20 +++-------
 arch/x86/kernel/cpu/mce/internal.h | 26 +++++++++++++
 arch/x86/kernel/cpu/mce/severity.c |  6 +--
 drivers/edac/mce_amd.c             |  5 +--
 6 files changed, 86 insertions(+), 44 deletions(-)

-- 
2.17.1