diff --git a/usr.sbin/bhyve/qemu_fwcfg.h b/usr.sbin/bhyve/qemu_fwcfg.h
new file mode 100644
--- /dev/null
+++ b/usr.sbin/bhyve/qemu_fwcfg.h
@@ -0,0 +1,12 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2021 Beckhoff Automation GmbH & Co. KG
+ * Author: Corvin Köhne <c.koehne@beckhoff.com>
+ */
+
+#pragma once
+
+#include <vmmapi.h>
+
+int qemu_fwcfg_init(struct vmctx *const ctx);
diff --git a/usr.sbin/bhyve/qemu_fwcfg.c b/usr.sbin/bhyve/qemu_fwcfg.c
new file mode 100644
--- /dev/null
+++ b/usr.sbin/bhyve/qemu_fwcfg.c
@@ -0,0 +1,114 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2021 Beckhoff Automation GmbH & Co. KG
+ * Author: Corvin Köhne <c.koehne@beckhoff.com>
+ */
+
+#include <sys/param.h>
+
+#include <machine/vmm.h>
+
+#include <err.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "acpi_device.h"
+#include "inout.h"
+#include "qemu_fwcfg.h"
+
+#define QEMU_FWCFG_ACPI_DEVICE_NAME "FWCF"
+#define QEMU_FWCFG_ACPI_HARDWARE_ID "QEMU0002"
+
+#define QEMU_FWCFG_SELECTOR_PORT_NUMBER 0x510
+#define QEMU_FWCFG_SELECTOR_PORT_SIZE 1
+#define QEMU_FWCFG_SELECTOR_PORT_FLAGS IOPORT_F_INOUT
+#define QEMU_FWCFG_DATA_PORT_NUMBER 0x511
+#define QEMU_FWCFG_DATA_PORT_SIZE 1
+#define QEMU_FWCFG_DATA_PORT_FLAGS \
+	IOPORT_F_INOUT /* QEMU v2.4+ ignores writes */
+
+struct qemu_fwcfg_softc {
+	struct acpi_device *acpi_dev;
+};
+
+static struct qemu_fwcfg_softc fwcfg_sc;
+
+static int
+qemu_fwcfg_selector_port_handler(struct vmctx *const ctx __unused, const int in,
+    const int port __unused, const int bytes, uint32_t *const eax,
+    void *const arg __unused)
+{
+	return (0);
+}
+
+static int
+qemu_fwcfg_data_port_handler(struct vmctx *const ctx __unused, const int in,
+    const int port __unused, const int bytes, uint32_t *const eax,
+    void *const arg __unused)
+{
+	return (0);
+}
+
+static int
+qemu_fwcfg_register_port(const char *const name, const int port, const int size,
+    const int flags, const inout_func_t handler)
+{
+	struct inout_port iop;
+
+	bzero(&iop, sizeof(iop));
+	iop.name = name;
+	iop.port = port;
+	iop.size = size;
+	iop.flags = flags;
+	iop.handler = handler;
+
+	return (register_inout(&iop));
+}
+
+int
+qemu_fwcfg_init(struct vmctx *const ctx)
+{
+	int error;
+
+	error = acpi_device_create(&fwcfg_sc.acpi_dev, ctx,
+	    QEMU_FWCFG_ACPI_DEVICE_NAME, QEMU_FWCFG_ACPI_HARDWARE_ID);
+	if (error) {
+		warnx("%s: failed to create ACPI device for QEMU FwCfg",
+		    __func__);
+		goto done;
+	}
+
+	error = acpi_device_add_res_fixed_ioport(fwcfg_sc.acpi_dev,
+	    QEMU_FWCFG_SELECTOR_PORT_NUMBER, 2);
+	if (error) {
+		warnx("%s: failed to add fixed IO port for QEMU FwCfg",
+		    __func__);
+		goto done;
+	}
+
+	/* add handlers for fwcfg ports */
+	if ((error = qemu_fwcfg_register_port("qemu_fwcfg_selector",
+	    QEMU_FWCFG_SELECTOR_PORT_NUMBER, QEMU_FWCFG_SELECTOR_PORT_SIZE,
+	    QEMU_FWCFG_SELECTOR_PORT_FLAGS,
+	    qemu_fwcfg_selector_port_handler)) != 0) {
+		warnx("%s: Unable to register qemu fwcfg selector port 0x%x",
+		    __func__, QEMU_FWCFG_SELECTOR_PORT_NUMBER);
+		goto done;
+	}
+	if ((error = qemu_fwcfg_register_port("qemu_fwcfg_data",
+	    QEMU_FWCFG_DATA_PORT_NUMBER, QEMU_FWCFG_DATA_PORT_SIZE,
+	    QEMU_FWCFG_DATA_PORT_FLAGS, qemu_fwcfg_data_port_handler)) != 0) {
+		warnx("%s: Unable to register qemu fwcfg data port 0x%x",
+		    __func__, QEMU_FWCFG_DATA_PORT_NUMBER);
+		goto done;
+	}
+
+done:
+	if (error) {
+		acpi_device_destroy(fwcfg_sc.acpi_dev);
+	}
+
+	return (error);
+}