Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...
[linux/fpc-iii.git] / arch / powerpc / include / asm / kvm_book3s.h
blob83851aabfdc8694c55a09e4af7686975e44d7cf2
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.
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.
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.
15 * Copyright SUSE Linux Products GmbH 2009
17 * Authors: Alexander Graf <agraf@suse.de>
20 #ifndef __ASM_KVM_BOOK3S_H__
21 #define __ASM_KVM_BOOK3S_H__
23 #include <linux/types.h>
24 #include <linux/kvm_host.h>
25 #include <asm/kvm_book3s_asm.h>
27 struct kvmppc_bat {
28 u64 raw;
29 u32 bepi;
30 u32 bepi_mask;
31 u32 brpn;
32 u8 wimg;
33 u8 pp;
34 bool vs : 1;
35 bool vp : 1;
38 struct kvmppc_sid_map {
39 u64 guest_vsid;
40 u64 guest_esid;
41 u64 host_vsid;
42 bool valid : 1;
45 #define SID_MAP_BITS 9
46 #define SID_MAP_NUM (1 << SID_MAP_BITS)
47 #define SID_MAP_MASK (SID_MAP_NUM - 1)
49 #ifdef CONFIG_PPC_BOOK3S_64
50 #define SID_CONTEXTS 1
51 #else
52 #define SID_CONTEXTS 128
53 #define VSID_POOL_SIZE (SID_CONTEXTS * 16)
54 #endif
56 struct hpte_cache {
57 struct hlist_node list_pte;
58 struct hlist_node list_pte_long;
59 struct hlist_node list_vpte;
60 struct hlist_node list_vpte_long;
61 #ifdef CONFIG_PPC_BOOK3S_64
62 struct hlist_node list_vpte_64k;
63 #endif
64 struct rcu_head rcu_head;
65 u64 host_vpn;
66 u64 pfn;
67 ulong slot;
68 struct kvmppc_pte pte;
69 int pagesize;
72 struct kvmppc_vcpu_book3s {
73 struct kvmppc_sid_map sid_map[SID_MAP_NUM];
74 struct {
75 u64 esid;
76 u64 vsid;
77 } slb_shadow[64];
78 u8 slb_shadow_max;
79 struct kvmppc_bat ibat[8];
80 struct kvmppc_bat dbat[8];
81 u64 hid[6];
82 u64 gqr[8];
83 u64 sdr1;
84 u64 hior;
85 u64 msr_mask;
86 u64 purr_offset;
87 u64 spurr_offset;
88 #ifdef CONFIG_PPC_BOOK3S_32
89 u32 vsid_pool[VSID_POOL_SIZE];
90 u32 vsid_next;
91 #else
92 u64 proto_vsid_first;
93 u64 proto_vsid_max;
94 u64 proto_vsid_next;
95 #endif
96 int context_id[SID_CONTEXTS];
98 bool hior_explicit; /* HIOR is set by ioctl, not PVR */
100 struct hlist_head hpte_hash_pte[HPTEG_HASH_NUM_PTE];
101 struct hlist_head hpte_hash_pte_long[HPTEG_HASH_NUM_PTE_LONG];
102 struct hlist_head hpte_hash_vpte[HPTEG_HASH_NUM_VPTE];
103 struct hlist_head hpte_hash_vpte_long[HPTEG_HASH_NUM_VPTE_LONG];
104 #ifdef CONFIG_PPC_BOOK3S_64
105 struct hlist_head hpte_hash_vpte_64k[HPTEG_HASH_NUM_VPTE_64K];
106 #endif
107 int hpte_cache_count;
108 spinlock_t mmu_lock;
111 #define CONTEXT_HOST 0
112 #define CONTEXT_GUEST 1
113 #define CONTEXT_GUEST_END 2
115 #define VSID_REAL 0x07ffffffffc00000ULL
116 #define VSID_BAT 0x07ffffffffb00000ULL
117 #define VSID_64K 0x0800000000000000ULL
118 #define VSID_1T 0x1000000000000000ULL
119 #define VSID_REAL_DR 0x2000000000000000ULL
120 #define VSID_REAL_IR 0x4000000000000000ULL
121 #define VSID_PR 0x8000000000000000ULL
123 extern void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong ea, ulong ea_mask);
124 extern void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 vp, u64 vp_mask);
125 extern void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end);
126 extern void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 new_msr);
127 extern void kvmppc_mmu_book3s_64_init(struct kvm_vcpu *vcpu);
128 extern void kvmppc_mmu_book3s_32_init(struct kvm_vcpu *vcpu);
129 extern void kvmppc_mmu_book3s_hv_init(struct kvm_vcpu *vcpu);
130 extern int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte,
131 bool iswrite);
132 extern void kvmppc_mmu_unmap_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte);
133 extern int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr);
134 extern void kvmppc_mmu_flush_segment(struct kvm_vcpu *vcpu, ulong eaddr, ulong seg_size);
135 extern void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu);
136 extern int kvmppc_book3s_hv_page_fault(struct kvm_run *run,
137 struct kvm_vcpu *vcpu, unsigned long addr,
138 unsigned long status);
139 extern long kvmppc_hv_find_lock_hpte(struct kvm *kvm, gva_t eaddr,
140 unsigned long slb_v, unsigned long valid);
142 extern void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
143 extern struct hpte_cache *kvmppc_mmu_hpte_cache_next(struct kvm_vcpu *vcpu);
144 extern void kvmppc_mmu_hpte_cache_free(struct hpte_cache *pte);
145 extern void kvmppc_mmu_hpte_destroy(struct kvm_vcpu *vcpu);
146 extern int kvmppc_mmu_hpte_init(struct kvm_vcpu *vcpu);
147 extern void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
148 extern int kvmppc_mmu_hpte_sysinit(void);
149 extern void kvmppc_mmu_hpte_sysexit(void);
150 extern int kvmppc_mmu_hv_init(void);
152 extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data);
153 extern int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data);
154 extern void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec);
155 extern void kvmppc_book3s_dequeue_irqprio(struct kvm_vcpu *vcpu,
156 unsigned int vec);
157 extern void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags);
158 extern void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat,
159 bool upper, u32 val);
160 extern void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr);
161 extern int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu);
162 extern pfn_t kvmppc_gfn_to_pfn(struct kvm_vcpu *vcpu, gfn_t gfn, bool writing,
163 bool *writable);
164 extern void kvmppc_add_revmap_chain(struct kvm *kvm, struct revmap_entry *rev,
165 unsigned long *rmap, long pte_index, int realmode);
166 extern void kvmppc_invalidate_hpte(struct kvm *kvm, unsigned long *hptep,
167 unsigned long pte_index);
168 void kvmppc_clear_ref_hpte(struct kvm *kvm, unsigned long *hptep,
169 unsigned long pte_index);
170 extern void *kvmppc_pin_guest_page(struct kvm *kvm, unsigned long addr,
171 unsigned long *nb_ret);
172 extern void kvmppc_unpin_guest_page(struct kvm *kvm, void *addr,
173 unsigned long gpa, bool dirty);
174 extern long kvmppc_virtmode_h_enter(struct kvm_vcpu *vcpu, unsigned long flags,
175 long pte_index, unsigned long pteh, unsigned long ptel);
176 extern long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags,
177 long pte_index, unsigned long pteh, unsigned long ptel,
178 pgd_t *pgdir, bool realmode, unsigned long *idx_ret);
179 extern long kvmppc_do_h_remove(struct kvm *kvm, unsigned long flags,
180 unsigned long pte_index, unsigned long avpn,
181 unsigned long *hpret);
182 extern long kvmppc_hv_get_dirty_log(struct kvm *kvm,
183 struct kvm_memory_slot *memslot, unsigned long *map);
184 extern void kvmppc_update_lpcr(struct kvm *kvm, unsigned long lpcr,
185 unsigned long mask);
187 extern void kvmppc_entry_trampoline(void);
188 extern void kvmppc_hv_entry_trampoline(void);
189 extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst);
190 extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst);
191 extern int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd);
192 extern void kvmppc_copy_to_svcpu(struct kvmppc_book3s_shadow_vcpu *svcpu,
193 struct kvm_vcpu *vcpu);
194 extern void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu,
195 struct kvmppc_book3s_shadow_vcpu *svcpu);
197 static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu)
199 return vcpu->arch.book3s;
202 /* Also add subarch specific defines */
204 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
205 #include <asm/kvm_book3s_32.h>
206 #endif
207 #ifdef CONFIG_KVM_BOOK3S_64_HANDLER
208 #include <asm/kvm_book3s_64.h>
209 #endif
211 static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
213 vcpu->arch.gpr[num] = val;
216 static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
218 return vcpu->arch.gpr[num];
221 static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
223 vcpu->arch.cr = val;
226 static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
228 return vcpu->arch.cr;
231 static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val)
233 vcpu->arch.xer = val;
236 static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu)
238 return vcpu->arch.xer;
241 static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
243 vcpu->arch.ctr = val;
246 static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
248 return vcpu->arch.ctr;
251 static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
253 vcpu->arch.lr = val;
256 static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
258 return vcpu->arch.lr;
261 static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
263 vcpu->arch.pc = val;
266 static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
268 return vcpu->arch.pc;
271 static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu)
273 return (vcpu->arch.shared->msr & MSR_LE) != (MSR_KERNEL & MSR_LE);
276 static inline u32 kvmppc_get_last_inst_internal(struct kvm_vcpu *vcpu, ulong pc)
278 /* Load the instruction manually if it failed to do so in the
279 * exit path */
280 if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED)
281 kvmppc_ld(vcpu, &pc, sizeof(u32), &vcpu->arch.last_inst, false);
283 return kvmppc_need_byteswap(vcpu) ? swab32(vcpu->arch.last_inst) :
284 vcpu->arch.last_inst;
287 static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
289 return kvmppc_get_last_inst_internal(vcpu, kvmppc_get_pc(vcpu));
293 * Like kvmppc_get_last_inst(), but for fetching a sc instruction.
294 * Because the sc instruction sets SRR0 to point to the following
295 * instruction, we have to fetch from pc - 4.
297 static inline u32 kvmppc_get_last_sc(struct kvm_vcpu *vcpu)
299 return kvmppc_get_last_inst_internal(vcpu, kvmppc_get_pc(vcpu) - 4);
302 static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
304 return vcpu->arch.fault_dar;
307 /* Magic register values loaded into r3 and r4 before the 'sc' assembly
308 * instruction for the OSI hypercalls */
309 #define OSI_SC_MAGIC_R3 0x113724FA
310 #define OSI_SC_MAGIC_R4 0x77810F9B
312 #define INS_DCBZ 0x7c0007ec
313 /* TO = 31 for unconditional trap */
314 #define INS_TW 0x7fe00008
316 /* LPIDs we support with this build -- runtime limit may be lower */
317 #define KVMPPC_NR_LPIDS (LPID_RSVD + 1)
319 #endif /* __ASM_KVM_BOOK3S_H__ */