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
kvmppc_set_gpr(struct kvm_vcpu * vcpu,int num,ulong val)37 static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
38 {
39 vcpu->arch.gpr[num] = val;
40 }
41
kvmppc_get_gpr(struct kvm_vcpu * vcpu,int num)42 static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
43 {
44 return vcpu->arch.gpr[num];
45 }
46
kvmppc_set_cr(struct kvm_vcpu * vcpu,u32 val)47 static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
48 {
49 vcpu->arch.cr = val;
50 }
51
kvmppc_get_cr(struct kvm_vcpu * vcpu)52 static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
53 {
54 return vcpu->arch.cr;
55 }
56
kvmppc_set_xer(struct kvm_vcpu * vcpu,u32 val)57 static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val)
58 {
59 vcpu->arch.xer = val;
60 }
61
kvmppc_get_xer(struct kvm_vcpu * vcpu)62 static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu)
63 {
64 return vcpu->arch.xer;
65 }
66
kvmppc_need_byteswap(struct kvm_vcpu * vcpu)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
kvmppc_set_ctr(struct kvm_vcpu * vcpu,ulong val)73 static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
74 {
75 vcpu->arch.ctr = val;
76 }
77
kvmppc_get_ctr(struct kvm_vcpu * vcpu)78 static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
79 {
80 return vcpu->arch.ctr;
81 }
82
kvmppc_set_lr(struct kvm_vcpu * vcpu,ulong val)83 static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
84 {
85 vcpu->arch.lr = val;
86 }
87
kvmppc_get_lr(struct kvm_vcpu * vcpu)88 static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
89 {
90 return vcpu->arch.lr;
91 }
92
kvmppc_set_pc(struct kvm_vcpu * vcpu,ulong val)93 static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
94 {
95 vcpu->arch.pc = val;
96 }
97
kvmppc_get_pc(struct kvm_vcpu * vcpu)98 static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
99 {
100 return vcpu->arch.pc;
101 }
102
kvmppc_get_fault_dar(struct kvm_vcpu * vcpu)103 static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
104 {
105 return vcpu->arch.fault_dear;
106 }
107
kvmppc_supports_magic_page(struct kvm_vcpu * vcpu)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