diff --git a/sys/dev/pci/pcireg.h b/sys/dev/pci/pcireg.h
index 8db21ba7fd0..afd140ffce6 100644
--- a/sys/dev/pci/pcireg.h
+++ b/sys/dev/pci/pcireg.h
@@ -762,8 +762,17 @@
 #define	PCIEM_SLOT_STA_EIS		0x0080
 #define	PCIEM_SLOT_STA_DLLSC		0x0100
 #define	PCIER_ROOT_CTL		0x1c
+#define	PCIEM_ROOT_CTL_SERR_CORR	0x0001
+#define	PCIEM_ROOT_CTL_SERR_NONFATAL	0x0002
+#define	PCIEM_ROOT_CTL_SERR_FATAL	0x0004
+#define	PCIEM_ROOT_CTL_PME		0x0008
+#define	PCIEM_ROOT_CTL_CRS_VIS		0x0010
 #define	PCIER_ROOT_CAP		0x1e
+#define	PCIEM_ROOT_CAP_CRS_VIS		0x0001
 #define	PCIER_ROOT_STA		0x20
+#define	PCIEM_ROOT_STA_PME_REQID_MASK	0x0000ffff
+#define	PCIEM_ROOT_STA_PME_STATUS	0x00010000
+#define	PCIEM_ROOT_STA_PME_PEND		0x00020000
 #define	PCIER_DEVICE_CAP2	0x24
 #define	PCIER_DEVICE_CTL2	0x28
 #define	PCIEM_CTL2_COMP_TIMEOUT_VAL	0x000f