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authorBetty Dall <betty.dall@hp.com>2013-06-06 12:10:50 -0600
committerBjorn Helgaas <bhelgaas@google.com>2013-06-06 14:39:16 -0600
commit0ba98ec9196746dd6abfa7bb9856ef4f29ffb9be (patch)
tree4a1e561b242cdd42fea73b3cf8c6ed84abb8b125 /drivers/acpi/apei/ghes.c
parentfde41b9fa2d0d6abd5b1b5674f1da3bb40ebc98d (diff)
downloadlwn-0ba98ec9196746dd6abfa7bb9856ef4f29ffb9be.tar.gz
lwn-0ba98ec9196746dd6abfa7bb9856ef4f29ffb9be.zip
ACPI / APEI: Force fatal AER severity when component has been reset
The CPER error record has a reset bit that indicates that the platform has reset the component. The reset bit can be set for any severity error including recoverable. From the AER code path's perspective, any error is fatal if the component has been reset. This patch upgrades the severity of the AER recovery to AER_FATAL whenever the CPER error record indicates that the component has been reset. [bhelgaas: s/bus has been reset/component has been reset/] Signed-off-by: Betty Dall <betty.dall@hp.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/acpi/apei/ghes.c')
-rw-r--r--drivers/acpi/apei/ghes.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index d668a8ae602b..ab315515908e 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -449,9 +449,19 @@ static void ghes_do_proc(struct ghes *ghes,
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);
+
+ /*
+ * If firmware reset the component to contain
+ * the error, we must reinitialize it before
+ * use, so treat it as a fatal AER error.
+ */
+ if (gdata->flags & CPER_SEC_RESET)
+ aer_severity = AER_FATAL;
+
aer_recover_queue(pcie_err->device_id.segment,
pcie_err->device_id.bus,
devfn, aer_severity);