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 */
19
20 #ifndef __POWERPC_KVM_PPC_H__
21 #define __POWERPC_KVM_PPC_H__
22
23 /* This file exists just so we can dereference kvm_vcpu, avoiding nested header
24 * dependencies. */
25
26 #include <linux/mutex.h>
27 #include <linux/timer.h>
28 #include <linux/types.h>
29 #include <linux/kvm_types.h>
30 #include <linux/kvm_host.h>
31 #ifdef CONFIG_PPC_BOOK3S
32 #include <asm/kvm_book3s.h>
33 #else
34 #include <asm/kvm_booke.h>
35 #endif
36 #ifdef CONFIG_KVM_BOOK3S_64_HANDLER
37 #include <asm/paca.h>
38 #endif
39
40 enum emulation_result {
41 EMULATE_DONE, /* no further processing */
42 EMULATE_DO_MMIO, /* kvm_run filled with MMIO request */
43 EMULATE_DO_DCR, /* kvm_run filled with DCR request */
44 EMULATE_FAIL, /* can't emulate this instruction */
45 EMULATE_AGAIN, /* something went wrong. go again */
46 };
47
48 extern int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu);
49 extern int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu);
50 extern char kvmppc_handlers_start[];
51 extern unsigned long kvmppc_handler_len;
52 extern void kvmppc_handler_highmem(void);
53
54 extern void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu);
55 extern int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
56 unsigned int rt, unsigned int bytes,
57 int is_bigendian);
58 extern int kvmppc_handle_loads(struct kvm_run *run, struct kvm_vcpu *vcpu,
59 unsigned int rt, unsigned int bytes,
60 int is_bigendian);
61 extern int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
62 u64 val, unsigned int bytes, int is_bigendian);
63
64 extern int kvmppc_emulate_instruction(struct kvm_run *run,
65 struct kvm_vcpu *vcpu);
66 extern int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu);
67 extern void kvmppc_emulate_dec(struct kvm_vcpu *vcpu);
68 extern u32 kvmppc_get_dec(struct kvm_vcpu *vcpu, u64 tb);
69 extern void kvmppc_decrementer_func(unsigned long data);
70 extern int kvmppc_sanity_check(struct kvm_vcpu *vcpu);
71
72 /* Core-specific hooks */
73
74 extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr,
75 unsigned int gtlb_idx);
76 extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode);
77 extern void kvmppc_mmu_switch_pid(struct kvm_vcpu *vcpu, u32 pid);
78 extern void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu);
79 extern int kvmppc_mmu_init(struct kvm_vcpu *vcpu);
80 extern int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
81 extern int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
82 extern gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index,
83 gva_t eaddr);
84 extern void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu);
85 extern void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu);
86
87 extern struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm,
88 unsigned int id);
89 extern void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu);
90 extern int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu);
91 extern int kvmppc_core_check_processor_compat(void);
92 extern int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu,
93 struct kvm_translation *tr);
94
95 extern void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
96 extern void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu);
97
98 extern void kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu);
99 extern int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu);
100 extern void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags);
101 extern void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu);
102 extern void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu);
103 extern void kvmppc_core_queue_external(struct kvm_vcpu *vcpu,
104 struct kvm_interrupt *irq);
105 extern void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu,
106 struct kvm_interrupt *irq);
107
108 extern int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
109 unsigned int op, int *advance);
110 extern int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs);
111 extern int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt);
112
113 extern int kvmppc_booke_init(void);
114 extern void kvmppc_booke_exit(void);
115
116 extern void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu);
117 extern int kvmppc_kvm_pv(struct kvm_vcpu *vcpu);
118 extern void kvmppc_map_magic(struct kvm_vcpu *vcpu);
119
120 extern long kvmppc_alloc_hpt(struct kvm *kvm);
121 extern void kvmppc_free_hpt(struct kvm *kvm);
122 extern long kvmppc_prepare_vrma(struct kvm *kvm,
123 struct kvm_userspace_memory_region *mem);
124 extern void kvmppc_map_vrma(struct kvm_vcpu *vcpu,
125 struct kvm_memory_slot *memslot, unsigned long porder);
126 extern int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu);
127 extern long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm,
128 struct kvm_create_spapr_tce *args);
129 extern long kvm_vm_ioctl_allocate_rma(struct kvm *kvm,
130 struct kvm_allocate_rma *rma);
131 extern struct kvmppc_linear_info *kvm_alloc_rma(void);
132 extern void kvm_release_rma(struct kvmppc_linear_info *ri);
133 extern struct kvmppc_linear_info *kvm_alloc_hpt(void);
134 extern void kvm_release_hpt(struct kvmppc_linear_info *li);
135 extern int kvmppc_core_init_vm(struct kvm *kvm);
136 extern void kvmppc_core_destroy_vm(struct kvm *kvm);
137 extern int kvmppc_core_prepare_memory_region(struct kvm *kvm,
138 struct kvm_userspace_memory_region *mem);
139 extern void kvmppc_core_commit_memory_region(struct kvm *kvm,
140 struct kvm_userspace_memory_region *mem);
141
142 /*
143 * Cuts out inst bits with ordering according to spec.
144 * That means the leftmost bit is zero. All given bits are included.
145 */
kvmppc_get_field(u64 inst,int msb,int lsb)146 static inline u32 kvmppc_get_field(u64 inst, int msb, int lsb)
147 {
148 u32 r;
149 u32 mask;
150
151 BUG_ON(msb > lsb);
152
153 mask = (1 << (lsb - msb + 1)) - 1;
154 r = (inst >> (63 - lsb)) & mask;
155
156 return r;
157 }
158
159 /*
160 * Replaces inst bits with ordering according to spec.
161 */
kvmppc_set_field(u64 inst,int msb,int lsb,int value)162 static inline u32 kvmppc_set_field(u64 inst, int msb, int lsb, int value)
163 {
164 u32 r;
165 u32 mask;
166
167 BUG_ON(msb > lsb);
168
169 mask = ((1 << (lsb - msb + 1)) - 1) << (63 - lsb);
170 r = (inst & ~mask) | ((value << (63 - lsb)) & mask);
171
172 return r;
173 }
174
175 void kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
176 int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
177
178 void kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
179 int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
180
181 int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
182 int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
183
184 void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid);
185
186 #ifdef CONFIG_KVM_BOOK3S_64_HV
kvmppc_set_xics_phys(int cpu,unsigned long addr)187 static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
188 {
189 paca[cpu].kvm_hstate.xics_phys = addr;
190 }
191
192 extern void kvm_linear_init(void);
193
194 #else
kvmppc_set_xics_phys(int cpu,unsigned long addr)195 static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
196 {}
197
kvm_linear_init(void)198 static inline void kvm_linear_init(void)
199 {}
200 #endif
201
202 int kvm_vcpu_ioctl_config_tlb(struct kvm_vcpu *vcpu,
203 struct kvm_config_tlb *cfg);
204 int kvm_vcpu_ioctl_dirty_tlb(struct kvm_vcpu *vcpu,
205 struct kvm_dirty_tlb *cfg);
206
207 #endif /* __POWERPC_KVM_PPC_H__ */
208