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

Xuesong Chen
2021-10-19T04:50:44Z

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(-)

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1.8.3.1