@@ -4438,3 +4438,20 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x2032, quirk_hsbp);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x2033, quirk_hsbp);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_PMC_Sierra, 0x8531, quirk_hsbp);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_PMC_Sierra, 0x8533, quirk_hsbp);
+
+/*
+ * VMD enabled root ports will change the source id for all messages
+ * to the VMD device. Rather than doing device matching with the source
+ * id, the AER driver should traverse the child device tree, reading
+ * AER registers to find the faulting device.
+ */
+static void quirk_no_aersid(struct pci_dev *pdev)
+{
+ /* VMD Domain */
+ if (pdev->bus->sysdata && pci_domain_nr(pdev->bus) >= 0x10000)
+ pdev->bus->bus_flags |= PCI_BUS_FLAGS_NO_AERSID;
+}
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x2030, quirk_no_aersid);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x2031, quirk_no_aersid);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x2032, quirk_no_aersid);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x2033, quirk_no_aersid);
VMD root ports change all source ids to the VMD device id. To find the sender of the aer notification, we need to scan all child devices for the aer sender, rather than relying on the source id from the message. Signed-off-by: Jon Derrick <jonathan.derrick@intel.com> --- drivers/pci/quirks.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)