]>
Commit | Line | Data |
---|---|---|
bbf45ba5 HB |
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, version 2, as | |
4 | * published by the Free Software Foundation. | |
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 | * Copyright IBM Corp. 2008 | |
16 | * | |
17 | * Authors: Hollis Blanchard <hollisb@us.ibm.com> | |
18 | */ | |
bbf45ba5 HB |
19 | #ifndef __POWERPC_KVM_PARA_H__ |
20 | #define __POWERPC_KVM_PARA_H__ | |
21 | ||
c3617f72 | 22 | #include <uapi/asm/kvm_para.h> |
bbf45ba5 | 23 | |
2a342ed5 AG |
24 | #ifdef CONFIG_KVM_GUEST |
25 | ||
26e673c3 AG |
26 | #include <linux/of.h> |
27 | ||
2a342ed5 AG |
28 | static inline int kvm_para_available(void) |
29 | { | |
30 | struct device_node *hyper_node; | |
31 | ||
32 | hyper_node = of_find_node_by_path("/hypervisor"); | |
33 | if (!hyper_node) | |
34 | return 0; | |
35 | ||
36 | if (!of_device_is_compatible(hyper_node, "linux,kvm")) | |
37 | return 0; | |
38 | ||
39 | return 1; | |
40 | } | |
41 | ||
2a342ed5 AG |
42 | #else |
43 | ||
bbf45ba5 HB |
44 | static inline int kvm_para_available(void) |
45 | { | |
46 | return 0; | |
47 | } | |
48 | ||
2a342ed5 AG |
49 | #endif |
50 | ||
bbf45ba5 HB |
51 | static inline unsigned int kvm_arch_para_features(void) |
52 | { | |
2a342ed5 AG |
53 | unsigned long r; |
54 | ||
55 | if (!kvm_para_available()) | |
56 | return 0; | |
57 | ||
b1f0d94c | 58 | if(epapr_hypercall0_1(KVM_HCALL_TOKEN(KVM_HC_FEATURES), &r)) |
2a342ed5 AG |
59 | return 0; |
60 | ||
61 | return r; | |
bbf45ba5 HB |
62 | } |
63 | ||
a4429e53 WL |
64 | static inline unsigned int kvm_arch_para_hints(void) |
65 | { | |
66 | return 0; | |
67 | } | |
68 | ||
3b5d56b9 EM |
69 | static inline bool kvm_check_and_clear_guest_paused(void) |
70 | { | |
71 | return false; | |
72 | } | |
73 | ||
bbf45ba5 | 74 | #endif /* __POWERPC_KVM_PARA_H__ */ |