linux-kernel - [RFC PATCH V5 0/5] ECAM quirks handling for ARM64 platforms

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:	Mon,  8 Aug 2016 15:05:36 +0200
From:	Tomasz Nowicki <tn@...ihalf.com>
To:	helgaas@...nel.org, arnd@...db.de, will.deacon@....com,
	catalin.marinas@....com, rafael@...nel.org,
	Lorenzo.Pieralisi@....com
Cc:	hanjun.guo@...aro.org, okaya@...eaurora.org, jchandra@...adcom.com,
	cov@...eaurora.org, dhdang@....com, ard.biesheuvel@...aro.org,
	robert.richter@...iumnetworks.com, mw@...ihalf.com,
	Liviu.Dudau@....com, ddaney@...iumnetworks.com,
	wangyijing@...wei.com, msalter@...hat.com,
	linux-pci@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linaro-acpi@...ts.linaro.org, jcm@...hat.com,
	andrea.gallo@...aro.org, jeremy.linton@....com,
	liudongdong3@...wei.com, gabriele.paoloni@...wei.com,
	jhugo@...eaurora.org, linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org, Tomasz Nowicki <tn@...ihalf.com>
Subject: [RFC PATCH V5 0/5] ECAM quirks handling for ARM64 platforms

Quirk handling relies on an idea of matching MCFG OEM ID, TABLE ID and
revision (the ones from standard header of MCFG table).

Static array is used to keep quirk entries. Each entry consists of
mentioned MCFG IDs along with custom pci_ops structure and initialization call.

As an example, the last patch presents quirk handling mechanism usage for
ThunderX PEM driver.

v4 -> v5
- rebase against v4.8-rc1
- rework to exact MCFG OEM ID, TABLE ID, rev match
  - use memcmp instead of strncmp
  - no substring match
- fix typos and dmesg message

Tomasz Nowicki (5):
  PCI: Embed pci_ecam_ops in pci_config_window structure
  PCI/ACPI: Move ACPI ECAM mapping to generic MCFG driver
  PCI: Check platform specific ECAM quirks
  ARM64/PCI: Start using quirks handling for ACPI based PCI host
    controller
  PCI: thunder-pem: Support quirky configuration space access for ACPI
    based PCI host controller

 arch/arm64/kernel/pci.c            | 42 +----------------
 drivers/acpi/pci_mcfg.c            | 40 ++++++++++++++++
 drivers/pci/ecam.c                 |  6 +--
 drivers/pci/host/Makefile          |  1 +
 drivers/pci/host/mcfg-quirks.c     | 93 ++++++++++++++++++++++++++++++++++++
 drivers/pci/host/mcfg-quirks.h     | 24 ++++++++++
 drivers/pci/host/pci-thunder-pem.c | 96 ++++++++++++++++++++++++++++++++------
 include/linux/pci-acpi.h           |  5 ++
 include/linux/pci-ecam.h           |  2 +-
 9 files changed, 252 insertions(+), 57 deletions(-)
 create mode 100644 drivers/pci/host/mcfg-quirks.c
 create mode 100644 drivers/pci/host/mcfg-quirks.h

-- 
1.9.1