diff --git a/hw/xfree86/os-support/bus/ix86Pci.c b/hw/xfree86/os-support/bus/ix86Pci.c
index bbc4847e0..e54246355 100644
--- a/hw/xfree86/os-support/bus/ix86Pci.c
+++ b/hw/xfree86/os-support/bus/ix86Pci.c
@@ -223,6 +223,20 @@ static pciBusInfo_t ix86Pci0 = {
 /* bridge      */	NULL
 };
 
+_X_EXPORT pointer
+xf86MapDomainMemory(int ScreenNum, int Flags, struct pci_device *dev,
+                    ADDRESS Base, unsigned long Size)
+{
+    return xf86MapVidMem(ScreenNum, Flags, Base, Size);
+}
+
+IOADDRESS
+xf86MapLegacyIO(struct pci_device *dev)
+{
+    (void)dev;
+    return 0;
+}
+
 static Bool
 ix86PciBusCheck(void)
 {
diff --git a/hw/xfree86/os-support/shared/stdResource.c b/hw/xfree86/os-support/shared/stdResource.c
index 7229d55b5..c144211f0 100644
--- a/hw/xfree86/os-support/shared/stdResource.c
+++ b/hw/xfree86/os-support/shared/stdResource.c
@@ -44,7 +44,7 @@
 #include "bus/Pci.h"
 
 #if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || \
-	defined(__DragonFly__)
+	defined(__DragonFly__) || defined(__sun)
 #define xf86StdAccResFromOS xf86AccResFromOS
 #endif