diff --git a/src/include/device/pci_def.h b/src/include/device/pci_def.h
index 59d9905..ef23b94 100644
--- a/src/include/device/pci_def.h
+++ b/src/include/device/pci_def.h
@@ -471,6 +471,7 @@
 #define  PCIE_EXT_CAP_L1SS_ID		 0x001E
 #define  PCIE_EXT_CAP_LTR_ID		 0x0018
 #define  PCIE_EXT_CAP_RESIZABLE_BAR	 0x0015
+#define  PCIE_EXT_CAP_RCECEA_ID	0x0007
 
 /* Secondary PCI Express Extended Capability Structure */
 #define PCI_EXP_SEC_CAP_ID	0x19
@@ -568,6 +569,10 @@
 #define  PCI_REBAR_CTRL_SIZE_MASK	 0xffff0000
 #define  PCI_REBAR_CTRL_SIZE_SHIFT	 16
 
+/* Root Complex Event Collector Endpoint Association */
+#define PCI_RCECEA_BITMAP 4
+#define PCI_RCECEA_BUSNUM 8
+
 /*
  * The PCI interface treats multi-function devices as independent
  * devices.  The slot/function address of each device is encoded