Add pvbus(4), a pseudo-bus to attach non-PCI paravirtual devices and buses.

vmt(4) is moved from mainbus0 to pvbus0, more devices will follow.

OK sf@ deraadt@

1 files changed, 46 insertions, 0 deletions

diff --git a/sys/dev/pv/pvvar.h b/sys/dev/pv/pvvar.h
new file mode 100644
index 00000000000..06161c7d51a
--- /dev/null
+++ b/sys/dev/pv/pvvar.h
@@ -0,0 +1,46 @@
+/*	$OpenBSD: pvvar.h,v 1.1 2015/07/21 03:38:22 reyk Exp $	*/
+
+/*
+ * Copyright (c) 2015 Reyk Floeter <reyk@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _DEV_PV_PVVAR_H_
+#define _DEV_PV_PVVAR_H_
+
+struct pvbus_softc {
+	struct device		 pvbus_dev;
+	uint8_t			 pvbus_types;
+};
+
+struct pvbus_attach_args {
+	const char		*pvba_busname;
+};
+
+struct pv_attach_args {
+	const char		*pva_busname;
+	uint8_t			 pva_type;	/* required hv type */
+	uint8_t			 pva_types;	/* detected hv types */
+};
+
+extern int has_hv_cpuid;
+
+#define PVBUS_KVM	0x01
+#define PVBUS_HYPERV	0x02
+#define PVBUS_VMWARE	0x04
+#define PVBUS_XEN	0x08
+
+int	 pvbus_probe(void);
+
+#endif /* _DEV_PV_PVBUS_H_ */