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1 | /* |
2 | * This program is free software; you can redistribute it and/or modify | |
3 | * it under the terms of the GNU General Public License as published by | |
4 | * the Free Software Foundation; either version 2 of the License. | |
5 | * | |
6 | * This program is distributed in the hope that it will be useful, | |
7 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
8 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
9 | * GNU General Public License for more details. | |
10 | * | |
11 | * You should have received a copy of the GNU General Public License | |
12 | * along with this program; if not, write to the Free Software | |
13 | * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. | |
14 | */ | |
15 | ||
16 | #ifndef __KVM_IODEV_H__ | |
17 | #define __KVM_IODEV_H__ | |
18 | ||
edf88417 | 19 | #include <linux/kvm_types.h> |
e2174021 HB |
20 | |
21 | struct kvm_io_device { | |
22 | void (*read)(struct kvm_io_device *this, | |
23 | gpa_t addr, | |
24 | int len, | |
25 | void *val); | |
26 | void (*write)(struct kvm_io_device *this, | |
27 | gpa_t addr, | |
28 | int len, | |
29 | const void *val); | |
92760499 LV |
30 | int (*in_range)(struct kvm_io_device *this, gpa_t addr, int len, |
31 | int is_write); | |
e2174021 HB |
32 | void (*destructor)(struct kvm_io_device *this); |
33 | ||
34 | void *private; | |
35 | }; | |
36 | ||
37 | static inline void kvm_iodevice_read(struct kvm_io_device *dev, | |
38 | gpa_t addr, | |
39 | int len, | |
40 | void *val) | |
41 | { | |
42 | dev->read(dev, addr, len, val); | |
43 | } | |
44 | ||
45 | static inline void kvm_iodevice_write(struct kvm_io_device *dev, | |
46 | gpa_t addr, | |
47 | int len, | |
48 | const void *val) | |
49 | { | |
50 | dev->write(dev, addr, len, val); | |
51 | } | |
52 | ||
92760499 LV |
53 | static inline int kvm_iodevice_inrange(struct kvm_io_device *dev, |
54 | gpa_t addr, int len, int is_write) | |
e2174021 | 55 | { |
92760499 | 56 | return dev->in_range(dev, addr, len, is_write); |
e2174021 HB |
57 | } |
58 | ||
59 | static inline void kvm_iodevice_destructor(struct kvm_io_device *dev) | |
60 | { | |
61 | if (dev->destructor) | |
62 | dev->destructor(dev); | |
63 | } | |
64 | ||
65 | #endif /* __KVM_IODEV_H__ */ |