The issue of commit d91525eb8ee6 ("ACPI, EINJ: Enhance error injection tolerance level") on x86 is also happened on our own arm64 platform. We sent a patch[1] trying to fix this issue in an arch-specific way as x86 does, but according to the suggestion from Lorenzo and Catalin, we can consolidate the PCI MCFG part then fix it in a more common way. [1] http://lists.infradead.org/pipermail/linux-arm-kernel/2021-September/682292.html 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 | 42 ++++++++++++++++++++++++++---------------- drivers/acpi/pci_mcfg.c | 34 +++++++++++++--------------------- drivers/pci/pci.c | 2 ++ include/linux/pci.h | 17 +++++++++++++++++ 6 files changed, 59 insertions(+), 83 deletions(-) -- 1.8.3.1