diff --git a/usr.sbin/bhyve/pci_passthru.h b/usr.sbin/bhyve/pci_passthru.h
--- a/usr.sbin/bhyve/pci_passthru.h
+++ b/usr.sbin/bhyve/pci_passthru.h
@@ -11,5 +11,20 @@
 
 #include "pci_emul.h"
 
+struct passthru_softc {
+	struct pci_devinst *psc_pi;
+	/* ROM is handled like a BAR */
+	struct pcibar psc_bar[PCI_BARMAX_WITH_ROM + 1];
+	struct {
+		int capoff;
+		int msgctrl;
+		int emulated;
+	} psc_msi;
+	struct {
+		int capoff;
+	} psc_msix;
+	struct pcisel psc_sel;
+};
+
 uint32_t read_config(const struct pcisel *sel, long reg, int width);
 void write_config(const struct pcisel *sel, long reg, int width, uint32_t data);
diff --git a/usr.sbin/bhyve/pci_passthru.c b/usr.sbin/bhyve/pci_passthru.c
--- a/usr.sbin/bhyve/pci_passthru.c
+++ b/usr.sbin/bhyve/pci_passthru.c
@@ -80,21 +80,6 @@
 
 static int pcifd = -1;
 
-struct passthru_softc {
-	struct pci_devinst *psc_pi;
-	/* ROM is handled like a BAR */
-	struct pcibar psc_bar[PCI_BARMAX_WITH_ROM + 1];
-	struct {
-		int		capoff;
-		int		msgctrl;
-		int		emulated;
-	} psc_msi;
-	struct {
-		int		capoff;
-	} psc_msix;
-	struct pcisel psc_sel;
-};
-
 static int
 msi_caplen(int msgctrl)
 {