1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 *
4 * Copyright SUSE Linux Products GmbH 2010
5 *
6 * Authors: Alexander Graf <agraf@suse.de>
7 */
8
9 #ifndef __ASM_KVM_BOOKE_H__
10 #define __ASM_KVM_BOOKE_H__
11
12 #include <linux/types.h>
13 #include <linux/kvm_host.h>
14
15 /*
16 * Number of available lpids. Only the low-order 6 bits of LPID rgister are
17 * implemented on e500mc+ cores.
18 */
19 #define KVMPPC_NR_LPIDS 64
20
21 #define KVMPPC_INST_EHPRIV 0x7c00021c
22 #define EHPRIV_OC_SHIFT 11
23 /* "ehpriv 1" : ehpriv with OC = 1 is used for debug emulation */
24 #define EHPRIV_OC_DEBUG 1
25
26 static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
27 {
28 vcpu->arch.regs.gpr[num] = val;
29 }
30
31 static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
32 {
33 return vcpu->arch.regs.gpr[num];
34 }
35
36 static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
37 {
38 vcpu->arch.regs.ccr = val;
39 }
40
41 static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
42 {
43 return vcpu->arch.regs.ccr;
44 }
45
46 static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, ulong val)
47 {
48 vcpu->arch.regs.xer = val;
49 }
50
51 static inline ulong kvmppc_get_xer(struct kvm_vcpu *vcpu)
52 {
53 return vcpu->arch.regs.xer;
54 }
55
56 static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu)
57 {
58 /* XXX Would need to check TLB entry */
59 return false;
60 }
61
62 static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
63 {
64 vcpu->arch.regs.ctr = val;
65 }
66
67 static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
68 {
69 return vcpu->arch.regs.ctr;
70 }
71
72 static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
73 {
74 vcpu->arch.regs.link = val;
75 }
76
77 static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
78 {
79 return vcpu->arch.regs.link;
80 }
81
82 static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
83 {
84 vcpu->arch.regs.nip = val;
85 }
86
87 static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
88 {
89 return vcpu->arch.regs.nip;
90 }
91
92 static inline void kvmppc_set_fpr(struct kvm_vcpu *vcpu, int i, u64 val)
93 {
94 vcpu->arch.fp.fpr[i][TS_FPROFFSET] = val;
95 }
96
97 static inline u64 kvmppc_get_fpr(struct kvm_vcpu *vcpu, int i)
98 {
99 return vcpu->arch.fp.fpr[i][TS_FPROFFSET];
100 }
101
102 #ifdef CONFIG_BOOKE
103 static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
104 {
105 return vcpu->arch.fault_dear;
106 }
107 #endif
108
109 static inline bool kvmppc_supports_magic_page(struct kvm_vcpu *vcpu)
110 {
111 /* Magic page is only supported on e500v2 */
112 #ifdef CONFIG_KVM_E500V2
113 return true;
114 #else
115 return false;
116 #endif
117 }
118 #endif /* __ASM_KVM_BOOKE_H__ */
119
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