xref: /freebsd/sys/amd64/vmm/io/ppt.h (revision fcb560670601b2a4d87bb31d7531c8dcc37ee71b)
1 /*-
2  * Copyright (c) 2011 NetApp, Inc.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 
29 #ifndef _IO_PPT_H_
30 #define	_IO_PPT_H_
31 
32 int	ppt_unassign_all(struct vm *vm);
33 int	ppt_map_mmio(struct vm *vm, int bus, int slot, int func,
34 		     vm_paddr_t gpa, size_t len, vm_paddr_t hpa);
35 int	ppt_setup_msi(struct vm *vm, int vcpu, int bus, int slot, int func,
36 		      uint64_t addr, uint64_t msg, int numvec);
37 int	ppt_setup_msix(struct vm *vm, int vcpu, int bus, int slot, int func,
38 		int idx, uint64_t addr, uint64_t msg, uint32_t vector_control);
39 int	ppt_assigned_devices(struct vm *vm);
40 boolean_t ppt_is_mmio(struct vm *vm, vm_paddr_t gpa);
41 
42 /*
43  * Returns the number of devices sequestered by the ppt driver for assignment
44  * to virtual machines.
45  */
46 int	ppt_avail_devices(void);
47 
48 /*
49  * The following functions should never be called directly.
50  * Use 'vm_assign_pptdev()' and 'vm_unassign_pptdev()' instead.
51  */
52 int	ppt_assign_device(struct vm *vm, int bus, int slot, int func);
53 int	ppt_unassign_device(struct vm *vm, int bus, int slot, int func);
54 #endif
55