linux-kernel - [PATCH v3 0/2] PCI MCFG consolidation and APEI resource filterin

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Date:   Tue, 19 Oct 2021 12:49:16 +0800
From:   Xuesong Chen <xuesong.chen@...ux.alibaba.com>
To:     catalin.marinas@....com, lorenzo.pieralisi@....com,
        james.morse@....com, will@...nel.org, rafael@...nel.org,
        tony.luck@...el.com, bp@...en8.de, mingo@...nel.org,
        bhelgaas@...gle.com
Cc:     linux-pci@...r.kernel.org, linux-acpi@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        xuesong.chen@...ux.alibaba.com
Subject: [PATCH v3 0/2] PCI MCFG consolidation and APEI resource filterin

Hello All,

The idea of this patch set is very strainforward, it's somehow a refactor
of the original codes to share some ones that they should do. Based on that,
we can resolve the MCFG address access issue in APEI module on x86 in a 
command way instead of the current arch-dependent one, while this issue also
does happen on ARM64 platform.

The logic of the series is very clear(IMO it's even time-wasting to explain that):

Patch #1: Escalating the 'pci_mmcfg_list' and 'pci_mmcfg_region' to the
pci.[c,h] which will shared by all the arches. A common sense, in some degree.

Patch #2: Since the 'pci_mmcfg_list' now can be shared across all arches,
the arch-specific fix method can be replaced by the new solution naturally.

Now the v3 patch has been finalized, can we move forward to the next step? -
either give the concerns/objections or pick it up.

Xuesong Chen (2):
  PCI: MCFG: Consolidate the separate PCI MCFG table entry list
  ACPI: APEI: Filter the PCI MCFG address with an arch-agnostic method

 arch/x86/include/asm/pci_x86.h | 17 +---------------
 arch/x86/pci/mmconfig-shared.c | 30 ----------------------------
 drivers/acpi/apei/apei-base.c  | 45 ++++++++++++++++++++++++++++--------------
 drivers/acpi/pci_mcfg.c        | 34 ++++++++++++-------------------
 drivers/pci/pci.c              |  2 ++
 include/linux/pci.h            | 17 ++++++++++++++++
 6 files changed, 63 insertions(+), 82 deletions(-)

-- 
1.8.3.1