diff --git a/sys/dev/pci/pci.c b/sys/dev/pci/pci.c
index 7d36b6261c70..b2b5ff80d0d5 100644
--- a/sys/dev/pci/pci.c
+++ b/sys/dev/pci/pci.c
@@ -4024,6 +4024,7 @@ static const struct
 	{PCIC_BASEPERIPH,	PCIS_BASEPERIPH_RTC,	1, "realtime clock"},
 	{PCIC_BASEPERIPH,	PCIS_BASEPERIPH_PCIHOT,	1, "PCI hot-plug controller"},
 	{PCIC_BASEPERIPH,	PCIS_BASEPERIPH_SDHC,	1, "SD host controller"},
+	{PCIC_BASEPERIPH,	PCIS_BASEPERIPH_IOMMU,	1, "IOMMU"},
 	{PCIC_INPUTDEV,		-1,			1, "input device"},
 	{PCIC_INPUTDEV,		PCIS_INPUTDEV_KEYBOARD,	1, "keyboard"},
 	{PCIC_INPUTDEV,		PCIS_INPUTDEV_DIGITIZER,1, "digitizer"},
diff --git a/sys/dev/pci/pcireg.h b/sys/dev/pci/pcireg.h
index 6e873c8c8827..73ce5e9fed9f 100644
--- a/sys/dev/pci/pcireg.h
+++ b/sys/dev/pci/pcireg.h
@@ -384,6 +384,7 @@
 #define	PCIS_BASEPERIPH_RTC	0x03
 #define	PCIS_BASEPERIPH_PCIHOT	0x04
 #define	PCIS_BASEPERIPH_SDHC	0x05
+#define	PCIS_BASEPERIPH_IOMMU	0x06
 #define	PCIS_BASEPERIPH_OTHER	0x80
 
 #define	PCIC_INPUTDEV	0x09
diff --git a/usr.sbin/pciconf/pciconf.c b/usr.sbin/pciconf/pciconf.c
index 0177dc98702f..12e83ec93380 100644
--- a/usr.sbin/pciconf/pciconf.c
+++ b/usr.sbin/pciconf/pciconf.c
@@ -466,6 +466,7 @@ static struct
 	{PCIC_BASEPERIPH,	PCIS_BASEPERIPH_RTC,	"realtime clock"},
 	{PCIC_BASEPERIPH,	PCIS_BASEPERIPH_PCIHOT,	"PCI hot-plug controller"},
 	{PCIC_BASEPERIPH,	PCIS_BASEPERIPH_SDHC,	"SD host controller"},
+	{PCIC_BASEPERIPH,	PCIS_BASEPERIPH_IOMMU,	"IOMMU"},
 	{PCIC_INPUTDEV,		-1,			"input device"},
 	{PCIC_INPUTDEV,		PCIS_INPUTDEV_KEYBOARD,	"keyboard"},
 	{PCIC_INPUTDEV,		PCIS_INPUTDEV_DIGITIZER,"digitizer"},