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>
38 struct kvmppc_sid_map {
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
52 #define SID_CONTEXTS 128
53 #define VSID_POOL_SIZE (SID_CONTEXTS * 16)
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;
64 struct rcu_head rcu_head;
68 struct kvmppc_pte pte;
72 struct kvmppc_vcpu_book3s {
74 struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
75 struct kvmppc_sid_map sid_map[SID_MAP_NUM];
81 struct kvmppc_bat ibat[8];
82 struct kvmppc_bat dbat[8];
90 #ifdef CONFIG_PPC_BOOK3S_32
91 u32 vsid_pool[VSID_POOL_SIZE];
98 int context_id[SID_CONTEXTS];
100 bool hior_explicit; /* HIOR is set by ioctl, not PVR */
102 struct hlist_head hpte_hash_pte[HPTEG_HASH_NUM_PTE];
103 struct hlist_head hpte_hash_pte_long[HPTEG_HASH_NUM_PTE_LONG];
104 struct hlist_head hpte_hash_vpte[HPTEG_HASH_NUM_VPTE];
105 struct hlist_head hpte_hash_vpte_long[HPTEG_HASH_NUM_VPTE_LONG];
106 #ifdef CONFIG_PPC_BOOK3S_64
107 struct hlist_head hpte_hash_vpte_64k[HPTEG_HASH_NUM_VPTE_64K];
109 int hpte_cache_count;
113 #define CONTEXT_HOST 0
114 #define CONTEXT_GUEST 1
115 #define CONTEXT_GUEST_END 2
117 #define VSID_REAL 0x07ffffffffc00000ULL
118 #define VSID_BAT 0x07ffffffffb00000ULL
119 #define VSID_64K 0x0800000000000000ULL
120 #define VSID_1T 0x1000000000000000ULL
121 #define VSID_REAL_DR 0x2000000000000000ULL
122 #define VSID_REAL_IR 0x4000000000000000ULL
123 #define VSID_PR 0x8000000000000000ULL
125 extern void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong ea, ulong ea_mask);
126 extern void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 vp, u64 vp_mask);
127 extern void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end);
128 extern void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 new_msr);
129 extern void kvmppc_set_pvr(struct kvm_vcpu *vcpu, u32 pvr);
130 extern void kvmppc_mmu_book3s_64_init(struct kvm_vcpu *vcpu);
131 extern void kvmppc_mmu_book3s_32_init(struct kvm_vcpu *vcpu);
132 extern void kvmppc_mmu_book3s_hv_init(struct kvm_vcpu *vcpu);
133 extern int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte);
134 extern int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr);
135 extern void kvmppc_mmu_flush_segment(struct kvm_vcpu *vcpu, ulong eaddr, ulong seg_size);
136 extern void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu);
137 extern int kvmppc_book3s_hv_page_fault(struct kvm_run *run,
138 struct kvm_vcpu *vcpu, unsigned long addr,
139 unsigned long status);
140 extern long kvmppc_hv_find_lock_hpte(struct kvm *kvm, gva_t eaddr,
141 unsigned long slb_v, unsigned long valid);
143 extern void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
144 extern struct hpte_cache *kvmppc_mmu_hpte_cache_next(struct kvm_vcpu *vcpu);
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,
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);
163 extern void kvmppc_add_revmap_chain(struct kvm *kvm, struct revmap_entry *rev,
164 unsigned long *rmap, long pte_index, int realmode);
165 extern void kvmppc_invalidate_hpte(struct kvm *kvm, unsigned long *hptep,
166 unsigned long pte_index);
167 void kvmppc_clear_ref_hpte(struct kvm *kvm, unsigned long *hptep,
168 unsigned long pte_index);
169 extern void *kvmppc_pin_guest_page(struct kvm *kvm, unsigned long addr,
170 unsigned long *nb_ret);
171 extern void kvmppc_unpin_guest_page(struct kvm *kvm, void *addr,
172 unsigned long gpa, bool dirty);
173 extern long kvmppc_virtmode_h_enter(struct kvm_vcpu *vcpu, unsigned long flags,
174 long pte_index, unsigned long pteh, unsigned long ptel);
175 extern long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags,
176 long pte_index, unsigned long pteh, unsigned long ptel,
177 pgd_t *pgdir, bool realmode, unsigned long *idx_ret);
178 extern long kvmppc_do_h_remove(struct kvm *kvm, unsigned long flags,
179 unsigned long pte_index, unsigned long avpn,
180 unsigned long *hpret);
181 extern long kvmppc_hv_get_dirty_log(struct kvm *kvm,
182 struct kvm_memory_slot *memslot, unsigned long *map);
183 extern void kvmppc_update_lpcr(struct kvm *kvm, unsigned long lpcr,
186 extern void kvmppc_entry_trampoline(void);
187 extern void kvmppc_hv_entry_trampoline(void);
188 extern void kvmppc_load_up_fpu(void);
189 extern void kvmppc_load_up_altivec(void);
190 extern void kvmppc_load_up_vsx(void);
191 extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst);
192 extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst);
193 extern int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd);
195 static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu)
197 return container_of(vcpu, struct kvmppc_vcpu_book3s, vcpu);
200 extern void kvm_return_point(void);
202 /* Also add subarch specific defines */
204 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
205 #include <asm/kvm_book3s_32.h>
207 #ifdef CONFIG_KVM_BOOK3S_64_HANDLER
208 #include <asm/kvm_book3s_64.h>
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)
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)
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)
266 static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
268 return vcpu->arch.pc;
271 static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
273 ulong pc = kvmppc_get_pc(vcpu);
275 /* Load the instruction manually if it failed to do so in the
277 if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED)
278 kvmppc_ld(vcpu, &pc, sizeof(u32), &vcpu->arch.last_inst, false);
280 return vcpu->arch.last_inst;
284 * Like kvmppc_get_last_inst(), but for fetching a sc instruction.
285 * Because the sc instruction sets SRR0 to point to the following
286 * instruction, we have to fetch from pc - 4.
288 static inline u32 kvmppc_get_last_sc(struct kvm_vcpu *vcpu)
290 ulong pc = kvmppc_get_pc(vcpu) - 4;
292 /* Load the instruction manually if it failed to do so in the
294 if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED)
295 kvmppc_ld(vcpu, &pc, sizeof(u32), &vcpu->arch.last_inst, false);
297 return vcpu->arch.last_inst;
300 static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
302 return vcpu->arch.fault_dar;
305 #ifdef CONFIG_KVM_BOOK3S_PR
307 static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu)
309 return to_book3s(vcpu)->hior;
312 static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu,
313 unsigned long pending_now, unsigned long old_pending)
316 vcpu->arch.shared->int_pending = 1;
317 else if (old_pending)
318 vcpu->arch.shared->int_pending = 0;
321 static inline bool kvmppc_critical_section(struct kvm_vcpu *vcpu)
323 ulong crit_raw = vcpu->arch.shared->critical;
324 ulong crit_r1 = kvmppc_get_gpr(vcpu, 1);
327 /* Truncate crit indicators in 32 bit mode */
328 if (!(vcpu->arch.shared->msr & MSR_SF)) {
329 crit_raw &= 0xffffffff;
330 crit_r1 &= 0xffffffff;
333 /* Critical section when crit == r1 */
334 crit = (crit_raw == crit_r1);
335 /* ... and we're in supervisor mode */
336 crit = crit && !(vcpu->arch.shared->msr & MSR_PR);
340 #else /* CONFIG_KVM_BOOK3S_PR */
342 static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu)
347 static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu,
348 unsigned long pending_now, unsigned long old_pending)
352 static inline bool kvmppc_critical_section(struct kvm_vcpu *vcpu)
358 /* Magic register values loaded into r3 and r4 before the 'sc' assembly
359 * instruction for the OSI hypercalls */
360 #define OSI_SC_MAGIC_R3 0x113724FA
361 #define OSI_SC_MAGIC_R4 0x77810F9B
363 #define INS_DCBZ 0x7c0007ec
364 /* TO = 31 for unconditional trap */
365 #define INS_TW 0x7fe00008
367 /* LPIDs we support with this build -- runtime limit may be lower */
368 #define KVMPPC_NR_LPIDS (LPID_RSVD + 1)
370 #endif /* __ASM_KVM_BOOK3S_H__ */