xref: /freebsd/sys/amd64/vmm/io/ppt.h (revision 7fdf597e96a02165cfe22ff357b857d5fa15ed8a)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2011 NetApp, Inc.
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
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_unmap_mmio(struct vm *vm, int bus, int slot, int func,
36 		       vm_paddr_t gpa, size_t len);
37 int	ppt_setup_msi(struct vm *vm, int bus, int slot, int func,
38 		      uint64_t addr, uint64_t msg, int numvec);
39 int	ppt_setup_msix(struct vm *vm, int bus, int slot, int func,
40 		int idx, uint64_t addr, uint64_t msg, uint32_t vector_control);
41 int	ppt_disable_msix(struct vm *vm, int bus, int slot, int func);
42 int	ppt_assigned_devices(struct vm *vm);
43 bool	ppt_is_mmio(struct vm *vm, vm_paddr_t gpa);
44 
45 /*
46  * Returns the number of devices sequestered by the ppt driver for assignment
47  * to virtual machines.
48  */
49 int	ppt_avail_devices(void);
50 
51 /*
52  * The following functions should never be called directly.
53  * Use 'vm_assign_pptdev()' and 'vm_unassign_pptdev()' instead.
54  */
55 int	ppt_assign_device(struct vm *vm, int bus, int slot, int func);
56 int	ppt_unassign_device(struct vm *vm, int bus, int slot, int func);
57 #endif
58