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 SUSE Linux Products GmbH 2010
16  *
17  * Authors: Alexander Graf <agraf@suse.de>
18  */
19 
20 #ifndef __ASM_KVM_BOOKE_H__
21 #define __ASM_KVM_BOOKE_H__
22 
23 #include <linux/types.h>
24 #include <linux/kvm_host.h>
25 
26 /*
27  * Number of available lpids. Only the low-order 6 bits of LPID rgister are
28  * implemented on e500mc+ cores.
29  */
30 #define KVMPPC_NR_LPIDS                        64
31 
32 #define KVMPPC_INST_EHPRIV		0x7c00021c
33 #define EHPRIV_OC_SHIFT			11
34 /* "ehpriv 1" : ehpriv with OC = 1 is used for debug emulation */
35 #define EHPRIV_OC_DEBUG			1
36 
37 static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
38 {
39 	vcpu->arch.gpr[num] = val;
40 }
41 
42 static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
43 {
44 	return vcpu->arch.gpr[num];
45 }
46 
47 static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
48 {
49 	vcpu->arch.cr = val;
50 }
51 
52 static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
53 {
54 	return vcpu->arch.cr;
55 }
56 
57 static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, ulong val)
58 {
59 	vcpu->arch.xer = val;
60 }
61 
62 static inline ulong kvmppc_get_xer(struct kvm_vcpu *vcpu)
63 {
64 	return vcpu->arch.xer;
65 }
66 
67 static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu)
68 {
69 	/* XXX Would need to check TLB entry */
70 	return false;
71 }
72 
73 static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
74 {
75 	vcpu->arch.ctr = val;
76 }
77 
78 static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
79 {
80 	return vcpu->arch.ctr;
81 }
82 
83 static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
84 {
85 	vcpu->arch.lr = val;
86 }
87 
88 static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
89 {
90 	return vcpu->arch.lr;
91 }
92 
93 static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
94 {
95 	vcpu->arch.pc = val;
96 }
97 
98 static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
99 {
100 	return vcpu->arch.pc;
101 }
102 
103 static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
104 {
105 	return vcpu->arch.fault_dear;
106 }
107 
108 static inline bool kvmppc_supports_magic_page(struct kvm_vcpu *vcpu)
109 {
110 	/* Magic page is only supported on e500v2 */
111 #ifdef CONFIG_KVM_E500V2
112 	return true;
113 #else
114 	return false;
115 #endif
116 }
117 #endif /* __ASM_KVM_BOOKE_H__ */
118