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15#include <linux/kvm_host.h>
16#include <linux/err.h>
17
18#include <asm/reg.h>
19#include <asm/cputable.h>
20#include <asm/tlbflush.h>
21#include <asm/kvm_e500.h>
22#include <asm/kvm_ppc.h>
23
24#include "booke.h"
25#include "e500_tlb.h"
26
27void kvmppc_core_load_host_debugstate(struct kvm_vcpu *vcpu)
28{
29}
30
31void kvmppc_core_load_guest_debugstate(struct kvm_vcpu *vcpu)
32{
33}
34
35void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
36{
37 kvmppc_e500_tlb_load(vcpu, cpu);
38}
39
40void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu)
41{
42 kvmppc_e500_tlb_put(vcpu);
43}
44
45int kvmppc_core_check_processor_compat(void)
46{
47 int r;
48
49 if (strcmp(cur_cpu_spec->cpu_name, "e500v2") == 0)
50 r = 0;
51 else
52 r = -ENOTSUPP;
53
54 return r;
55}
56
57int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu)
58{
59 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
60
61 kvmppc_e500_tlb_setup(vcpu_e500);
62
63 return 0;
64}
65
66
67int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu,
68 struct kvm_translation *tr)
69{
70 int index;
71 gva_t eaddr;
72 u8 pid;
73 u8 as;
74
75 eaddr = tr->linear_address;
76 pid = (tr->linear_address >> 32) & 0xff;
77 as = (tr->linear_address >> 40) & 0x1;
78
79 index = kvmppc_e500_tlb_search(vcpu, eaddr, pid, as);
80 if (index < 0) {
81 tr->valid = 0;
82 return 0;
83 }
84
85 tr->physical_address = kvmppc_mmu_xlate(vcpu, index, eaddr);
86
87 tr->valid = 1;
88
89 return 0;
90}
91
92struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
93{
94 struct kvmppc_vcpu_e500 *vcpu_e500;
95 struct kvm_vcpu *vcpu;
96 int err;
97
98 vcpu_e500 = kmem_cache_zalloc(kvm_vcpu_cache, GFP_KERNEL);
99 if (!vcpu_e500) {
100 err = -ENOMEM;
101 goto out;
102 }
103
104 vcpu = &vcpu_e500->vcpu;
105 err = kvm_vcpu_init(vcpu, kvm, id);
106 if (err)
107 goto free_vcpu;
108
109 err = kvmppc_e500_tlb_init(vcpu_e500);
110 if (err)
111 goto uninit_vcpu;
112
113 return vcpu;
114
115uninit_vcpu:
116 kvm_vcpu_uninit(vcpu);
117free_vcpu:
118 kmem_cache_free(kvm_vcpu_cache, vcpu_e500);
119out:
120 return ERR_PTR(err);
121}
122
123void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu)
124{
125 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
126
127 kvmppc_e500_tlb_uninit(vcpu_e500);
128 kvm_vcpu_uninit(vcpu);
129 kmem_cache_free(kvm_vcpu_cache, vcpu_e500);
130}
131
132static int __init kvmppc_e500_init(void)
133{
134 int r, i;
135 unsigned long ivor[3];
136 unsigned long max_ivor = 0;
137
138 r = kvmppc_booke_init();
139 if (r)
140 return r;
141
142
143 ivor[0] = mfspr(SPRN_IVOR32);
144 ivor[1] = mfspr(SPRN_IVOR33);
145 ivor[2] = mfspr(SPRN_IVOR34);
146 for (i = 0; i < 3; i++) {
147 if (ivor[i] > max_ivor)
148 max_ivor = ivor[i];
149
150 memcpy((void *)kvmppc_booke_handlers + ivor[i],
151 kvmppc_handlers_start + (i + 16) * kvmppc_handler_len,
152 kvmppc_handler_len);
153 }
154 flush_icache_range(kvmppc_booke_handlers,
155 kvmppc_booke_handlers + max_ivor + kvmppc_handler_len);
156
157 return kvm_init(NULL, sizeof(struct kvmppc_vcpu_e500), THIS_MODULE);
158}
159
160static void __init kvmppc_e500_exit(void)
161{
162 kvmppc_booke_exit();
163}
164
165module_init(kvmppc_e500_init);
166module_exit(kvmppc_e500_exit);
167