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    Subject[PATCH 8/9] ACPI, APEI, GHES: Add PCIe AER recovery support
    Date
    aer_recover_queue() is called when recoverable PCIe AER errors are
    notified by firmware to do the recovery work.

    Signed-off-by: Huang Ying <ying.huang@intel.com>
    ---
    drivers/acpi/apei/ghes.c | 23 +++++++++++++++++++++++
    1 file changed, 23 insertions(+)

    --- a/drivers/acpi/apei/ghes.c
    +++ b/drivers/acpi/apei/ghes.c
    @@ -45,6 +45,8 @@
    #include <linux/irq_work.h>
    #include <linux/llist.h>
    #include <linux/genalloc.h>
    +#include <linux/pci.h>
    +#include <linux/aer.h>
    #include <acpi/apei.h>
    #include <acpi/atomicio.h>
    #include <acpi/hed.h>
    @@ -446,6 +448,27 @@ static void ghes_do_proc(const struct ac
    }
    #endif
    }
    +#ifdef CONFIG_ACPI_APEI_PCIEAER
    + else if (!uuid_le_cmp(*(uuid_le *)gdata->section_type,
    + CPER_SEC_PCIE)) {
    + struct cper_sec_pcie *pcie_err;
    + pcie_err = (struct cper_sec_pcie *)(gdata+1);
    + if (sev == GHES_SEV_RECOVERABLE &&
    + sec_sev == GHES_SEV_RECOVERABLE &&
    + pcie_err->validation_bits & CPER_PCIE_VALID_DEVICE_ID &&
    + pcie_err->validation_bits & CPER_PCIE_VALID_AER_INFO) {
    + unsigned int devfn;
    + int aer_severity;
    + devfn = PCI_DEVFN(pcie_err->device_id.device,
    + pcie_err->device_id.function);
    + aer_severity = cper_severity_to_aer(sev);
    + aer_recover_queue(pcie_err->device_id.segment,
    + pcie_err->device_id.bus,
    + devfn, aer_severity);
    + }
    +
    + }
    +#endif
    }
    }


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