1 files changed, 55 insertions, 0 deletions
diff --git a/usr.sbin/bhyve/pci_gvt-d.c b/usr.sbin/bhyve/pci_gvt-d.c
new file mode 100644
index 000000000000..767b8ee3127f
--- /dev/null
+++ b/usr.sbin/bhyve/pci_gvt-d.c
@@ -0,0 +1,55 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2020 Beckhoff Automation GmbH & Co. KG
+ * Author: Corvin Köhne <c.koehne@beckhoff.com>
+ */
+
+#include <sys/types.h>
+
+#include <dev/pci/pcireg.h>
+
+#include <errno.h>
+
+#include "pci_gvt-d-opregion.h"
+#include "pci_passthru.h"
+
+#define PCI_VENDOR_INTEL 0x8086
+
+static int
+gvt_d_probe(struct pci_devinst *const pi)
+{
+	struct passthru_softc *sc;
+	uint16_t vendor;
+	uint8_t class;
+
+	sc = pi->pi_arg;
+
+	vendor = read_config(passthru_get_sel(sc), PCIR_VENDOR, 0x02);
+	if (vendor != PCI_VENDOR_INTEL)
+		return (ENXIO);
+
+	class = read_config(passthru_get_sel(sc), PCIR_CLASS, 0x01);
+	if (class != PCIC_DISPLAY)
+		return (ENXIO);
+
+	return (0);
+}
+
+static int
+gvt_d_init(struct pci_devinst *const pi __unused, nvlist_t *const nvl __unused)
+{
+	return (0);
+}
+
+static void
+gvt_d_deinit(struct pci_devinst *const pi __unused)
+{
+}
+
+static struct passthru_dev gvt_d_dev = {
+	.probe = gvt_d_probe,
+	.init = gvt_d_init,
+	.deinit = gvt_d_deinit,
+};
+PASSTHRU_DEV_SET(gvt_d_dev);