linux-kernel - [PATCH v3 0/2] firmware: google: Expose coreboot tables and CBMEM

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: <20191128125100.14291-1-patrick.rudolph@9elements.com>
Date:   Thu, 28 Nov 2019 13:50:49 +0100
From:   patrick.rudolph@...ements.com
To:     linux-kernel@...r.kernel.org
Cc:     Patrick Rudolph <patrick.rudolph@...ements.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Alexios Zavras <alexios.zavras@...el.com>,
        Allison Randal <allison@...utok.net>,
        Stephen Boyd <swboyd@...omium.org>,
        Julius Werner <jwerner@...omium.org>,
        Samuel Holland <samuel@...lland.org>
Subject: [PATCH v3 0/2] firmware: google: Expose coreboot tables and CBMEM

From: Patrick Rudolph <patrick.rudolph@...ements.com>

As user land tools currently use /dev/mem to access coreboot tables and
CBMEM, provide a better way by using read-only sysfs attributes.

Unconditionally expose all tables and buffers making future changes in
coreboot possible without modifying a kernel driver.

Changes in v2:
 - Add ABI documentation
 - Add 0x prefix on hex values
 - Remove wrong ioremap hint as found by CI

Changes in v3:
 - Use BIN_ATTR_RO

Patrick Rudolph (2):
  firmware: google: Expose CBMEM over sysfs
  firmware: google: Expose coreboot tables over sysfs

Patrick Rudolph (2):
  firmware: google: Expose CBMEM over sysfs
  firmware: google: Expose coreboot tables over sysfs

 Documentation/ABI/stable/sysfs-bus-coreboot |  73 +++++++++
 drivers/firmware/google/Kconfig             |   9 ++
 drivers/firmware/google/Makefile            |   1 +
 drivers/firmware/google/cbmem-coreboot.c    | 159 ++++++++++++++++++++
 drivers/firmware/google/coreboot_table.c    |  57 +++++++
 drivers/firmware/google/coreboot_table.h    |  13 ++
 6 files changed, 312 insertions(+)
 create mode 100644 Documentation/ABI/stable/sysfs-bus-coreboot
 create mode 100644 drivers/firmware/google/cbmem-coreboot.c

-- 
2.21.0