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 {
73 struct kvmppc_sid_map sid_map[SID_MAP_NUM];
79 struct kvmppc_bat ibat[8];
80 struct kvmppc_bat dbat[8];
86 #ifdef CONFIG_PPC_BOOK3S_32
87 u32 vsid_pool[VSID_POOL_SIZE];
94 int context_id[SID_CONTEXTS];
96 bool hior_explicit; /* HIOR is set by ioctl, not PVR */
98 struct hlist_head hpte_hash_pte[HPTEG_HASH_NUM_PTE];
99 struct hlist_head hpte_hash_pte_long[HPTEG_HASH_NUM_PTE_LONG];
100 struct hlist_head hpte_hash_vpte[HPTEG_HASH_NUM_VPTE];
101 struct hlist_head hpte_hash_vpte_long[HPTEG_HASH_NUM_VPTE_LONG];
102 #ifdef CONFIG_PPC_BOOK3S_64
103 struct hlist_head hpte_hash_vpte_64k[HPTEG_HASH_NUM_VPTE_64K];
105 int hpte_cache_count;
109 #define VSID_REAL 0x07ffffffffc00000ULL
110 #define VSID_BAT 0x07ffffffffb00000ULL
111 #define VSID_64K 0x0800000000000000ULL
112 #define VSID_1T 0x1000000000000000ULL
113 #define VSID_REAL_DR 0x2000000000000000ULL
114 #define VSID_REAL_IR 0x4000000000000000ULL
115 #define VSID_PR 0x8000000000000000ULL
117 extern void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong ea, ulong ea_mask);
118 extern void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 vp, u64 vp_mask);
119 extern void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end);
120 extern void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 new_msr);
121 extern void kvmppc_mmu_book3s_64_init(struct kvm_vcpu *vcpu);
122 extern void kvmppc_mmu_book3s_32_init(struct kvm_vcpu *vcpu);
123 extern void kvmppc_mmu_book3s_hv_init(struct kvm_vcpu *vcpu);
124 extern int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte,
126 extern void kvmppc_mmu_unmap_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte);
127 extern int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr);
128 extern void kvmppc_mmu_flush_segment(struct kvm_vcpu *vcpu, ulong eaddr, ulong seg_size);
129 extern void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu);
130 extern int kvmppc_book3s_hv_page_fault(struct kvm_run *run,
131 struct kvm_vcpu *vcpu, unsigned long addr,
132 unsigned long status);
133 extern long kvmppc_hv_find_lock_hpte(struct kvm *kvm, gva_t eaddr,
134 unsigned long slb_v, unsigned long valid);
136 extern void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
137 extern struct hpte_cache *kvmppc_mmu_hpte_cache_next(struct kvm_vcpu *vcpu);
138 extern void kvmppc_mmu_hpte_cache_free(struct hpte_cache *pte);
139 extern void kvmppc_mmu_hpte_destroy(struct kvm_vcpu *vcpu);
140 extern int kvmppc_mmu_hpte_init(struct kvm_vcpu *vcpu);
141 extern void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
142 extern int kvmppc_mmu_hpte_sysinit(void);
143 extern void kvmppc_mmu_hpte_sysexit(void);
144 extern int kvmppc_mmu_hv_init(void);
145 extern int kvmppc_book3s_hcall_implemented(struct kvm *kvm, unsigned long hc);
147 /* XXX remove this export when load_last_inst() is generic */
148 extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data);
149 extern void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec);
150 extern void kvmppc_book3s_dequeue_irqprio(struct kvm_vcpu *vcpu,
152 extern void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags);
153 extern void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat,
154 bool upper, u32 val);
155 extern void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr);
156 extern int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu);
157 extern pfn_t kvmppc_gpa_to_pfn(struct kvm_vcpu *vcpu, gpa_t gpa, bool writing,
159 extern void kvmppc_add_revmap_chain(struct kvm *kvm, struct revmap_entry *rev,
160 unsigned long *rmap, long pte_index, int realmode);
161 extern void kvmppc_invalidate_hpte(struct kvm *kvm, __be64 *hptep,
162 unsigned long pte_index);
163 void kvmppc_clear_ref_hpte(struct kvm *kvm, __be64 *hptep,
164 unsigned long pte_index);
165 extern void *kvmppc_pin_guest_page(struct kvm *kvm, unsigned long addr,
166 unsigned long *nb_ret);
167 extern void kvmppc_unpin_guest_page(struct kvm *kvm, void *addr,
168 unsigned long gpa, bool dirty);
169 extern long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags,
170 long pte_index, unsigned long pteh, unsigned long ptel,
171 pgd_t *pgdir, bool realmode, unsigned long *idx_ret);
172 extern long kvmppc_do_h_remove(struct kvm *kvm, unsigned long flags,
173 unsigned long pte_index, unsigned long avpn,
174 unsigned long *hpret);
175 extern long kvmppc_hv_get_dirty_log(struct kvm *kvm,
176 struct kvm_memory_slot *memslot, unsigned long *map);
177 extern void kvmppc_update_lpcr(struct kvm *kvm, unsigned long lpcr,
179 extern void kvmppc_set_fscr(struct kvm_vcpu *vcpu, u64 fscr);
181 extern void kvmppc_entry_trampoline(void);
182 extern void kvmppc_hv_entry_trampoline(void);
183 extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst);
184 extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst);
185 extern int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd);
186 extern void kvmppc_pr_init_default_hcalls(struct kvm *kvm);
187 extern int kvmppc_hcall_impl_pr(unsigned long cmd);
188 extern int kvmppc_hcall_impl_hv_realmode(unsigned long cmd);
189 extern void kvmppc_copy_to_svcpu(struct kvmppc_book3s_shadow_vcpu *svcpu,
190 struct kvm_vcpu *vcpu);
191 extern void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu,
192 struct kvmppc_book3s_shadow_vcpu *svcpu);
194 static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu)
196 return vcpu->arch.book3s;
199 /* Also add subarch specific defines */
201 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
202 #include <asm/kvm_book3s_32.h>
204 #ifdef CONFIG_KVM_BOOK3S_64_HANDLER
205 #include <asm/kvm_book3s_64.h>
208 static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
210 vcpu->arch.gpr[num] = val;
213 static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
215 return vcpu->arch.gpr[num];
218 static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
223 static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
225 return vcpu->arch.cr;
228 static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val)
230 vcpu->arch.xer = val;
233 static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu)
235 return vcpu->arch.xer;
238 static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
240 vcpu->arch.ctr = val;
243 static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
245 return vcpu->arch.ctr;
248 static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
253 static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
255 return vcpu->arch.lr;
258 static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
263 static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
265 return vcpu->arch.pc;
268 static inline u64 kvmppc_get_msr(struct kvm_vcpu *vcpu);
269 static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu)
271 return (kvmppc_get_msr(vcpu) & MSR_LE) != (MSR_KERNEL & MSR_LE);
274 static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
276 return vcpu->arch.fault_dar;
279 static inline bool is_kvmppc_resume_guest(int r)
281 return (r == RESUME_GUEST || r == RESUME_GUEST_NV);
284 static inline bool is_kvmppc_hv_enabled(struct kvm *kvm);
285 static inline bool kvmppc_supports_magic_page(struct kvm_vcpu *vcpu)
287 /* Only PR KVM supports the magic page */
288 return !is_kvmppc_hv_enabled(vcpu->kvm);
291 /* Magic register values loaded into r3 and r4 before the 'sc' assembly
292 * instruction for the OSI hypercalls */
293 #define OSI_SC_MAGIC_R3 0x113724FA
294 #define OSI_SC_MAGIC_R4 0x77810F9B
296 #define INS_DCBZ 0x7c0007ec
297 /* TO = 31 for unconditional trap */
298 #define INS_TW 0x7fe00008
300 /* LPIDs we support with this build -- runtime limit may be lower */
301 #define KVMPPC_NR_LPIDS (LPID_RSVD + 1)
303 #define SPLIT_HACK_MASK 0xff000000
304 #define SPLIT_HACK_OFFS 0xfb000000
306 #endif /* __ASM_KVM_BOOK3S_H__ */