linux-kernel - [RFC PATCH v2 0/3] Add support for Vendor Defined Error Types in Einj Module

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: <20230525204422.4754-1-Avadhut.Naik@amd.com>
Date:   Thu, 25 May 2023 20:44:19 +0000
From:   Avadhut Naik <Avadhut.Naik@....com>
To:     <rafael@...nel.org>, <gregkh@...uxfoundation.org>,
        <lenb@...nel.org>, <linux-acpi@...r.kernel.org>,
        <linux-fsdevel@...r.kernel.org>
CC:     <avadnaik@....com>, <yazen.ghannam@....com>,
        <alexey.kardashevskiy@....com>, <linux-kernel@...r.kernel.org>
Subject: [RFC PATCH v2 0/3] Add support for Vendor Defined Error Types in Einj Module

This patchset adds support for Vendor Defined Error types in the einj
module by exporting a binary blob file in module's debugfs directory.
Userspace tools can write OEM Defined Structures into the blob file as
part of injecting Vendor defined errors.

The first patch refactors available_error_type_show() function to ensure
all errors supported by the platform are output through einj module's
available_error_type file in debugfs.

The second patch adds a write callback for binary blobs created through
debugfs_create_blob() API.

The third adds the required support i.e. establishing the memory mapping
and exporting it through debugfs blob file for Vendor-defined Error types.

Changes in V2:
 - Split the v1 patch, as was recommended, to have a seperate patch for
changes in debugfs.
 - Refactored available_error_type_show() function into a seperate patch.
 - Changed file permissions to octal format to remove checkpatch warnings.

Avadhut Naik (3):
  ACPI: APEI: EINJ: Refactor available_error_type_show()
  fs: debugfs: Add write functionality to debugfs blobs
  ACPI: APEI: EINJ: Add support for vendor defined error types

 drivers/acpi/apei/einj.c | 62 ++++++++++++++++++++++++++--------------
 fs/debugfs/file.c        | 28 ++++++++++++++----
 2 files changed, 64 insertions(+), 26 deletions(-)

-- 
2.34.1