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 struct rcu_head rcu_head;
65 struct kvmppc_pte pte;
68 struct kvmppc_vcpu_book3s {
70 struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
71 struct kvmppc_sid_map sid_map[SID_MAP_NUM];
77 struct kvmppc_bat ibat[8];
78 struct kvmppc_bat dbat[8];
85 #ifdef CONFIG_PPC_BOOK3S_32
86 u32 vsid_pool[VSID_POOL_SIZE];
91 int context_id[SID_CONTEXTS];
93 bool hior_sregs; /* HIOR is set by SREGS, not PVR */
95 struct hlist_head hpte_hash_pte[HPTEG_HASH_NUM_PTE];
96 struct hlist_head hpte_hash_pte_long[HPTEG_HASH_NUM_PTE_LONG];
97 struct hlist_head hpte_hash_vpte[HPTEG_HASH_NUM_VPTE];
98 struct hlist_head hpte_hash_vpte_long[HPTEG_HASH_NUM_VPTE_LONG];
103 #define CONTEXT_HOST 0
104 #define CONTEXT_GUEST 1
105 #define CONTEXT_GUEST_END 2
107 #define VSID_REAL 0x1fffffffffc00000ULL
108 #define VSID_BAT 0x1fffffffffb00000ULL
109 #define VSID_REAL_DR 0x2000000000000000ULL
110 #define VSID_REAL_IR 0x4000000000000000ULL
111 #define VSID_PR 0x8000000000000000ULL
113 extern void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong ea, ulong ea_mask);
114 extern void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 vp, u64 vp_mask);
115 extern void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end);
116 extern void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 new_msr);
117 extern void kvmppc_set_pvr(struct kvm_vcpu *vcpu, u32 pvr);
118 extern void kvmppc_mmu_book3s_64_init(struct kvm_vcpu *vcpu);
119 extern void kvmppc_mmu_book3s_32_init(struct kvm_vcpu *vcpu);
120 extern void kvmppc_mmu_book3s_hv_init(struct kvm_vcpu *vcpu);
121 extern int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte);
122 extern int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr);
123 extern void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu);
125 extern void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
126 extern struct hpte_cache *kvmppc_mmu_hpte_cache_next(struct kvm_vcpu *vcpu);
127 extern void kvmppc_mmu_hpte_destroy(struct kvm_vcpu *vcpu);
128 extern int kvmppc_mmu_hpte_init(struct kvm_vcpu *vcpu);
129 extern void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
130 extern int kvmppc_mmu_hpte_sysinit(void);
131 extern void kvmppc_mmu_hpte_sysexit(void);
132 extern int kvmppc_mmu_hv_init(void);
134 extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data);
135 extern int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data);
136 extern void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec);
137 extern void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags);
138 extern void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat,
139 bool upper, u32 val);
140 extern void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr);
141 extern int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu);
142 extern pfn_t kvmppc_gfn_to_pfn(struct kvm_vcpu *vcpu, gfn_t gfn);
144 extern void kvmppc_entry_trampoline(void);
145 extern void kvmppc_hv_entry_trampoline(void);
146 extern void kvmppc_load_up_fpu(void);
147 extern void kvmppc_load_up_altivec(void);
148 extern void kvmppc_load_up_vsx(void);
149 extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst);
150 extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst);
151 extern int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd);
153 static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu)
155 return container_of(vcpu, struct kvmppc_vcpu_book3s, vcpu);
158 extern void kvm_return_point(void);
160 /* Also add subarch specific defines */
162 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
163 #include <asm/kvm_book3s_32.h>
165 #ifdef CONFIG_KVM_BOOK3S_64_HANDLER
166 #include <asm/kvm_book3s_64.h>
169 #ifdef CONFIG_KVM_BOOK3S_PR
171 static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu)
173 return to_book3s(vcpu)->hior;
176 static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu,
177 unsigned long pending_now, unsigned long old_pending)
180 vcpu->arch.shared->int_pending = 1;
181 else if (old_pending)
182 vcpu->arch.shared->int_pending = 0;
185 static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
188 to_svcpu(vcpu)->gpr[num] = val;
189 to_book3s(vcpu)->shadow_vcpu->gpr[num] = val;
191 vcpu->arch.gpr[num] = val;
194 static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
197 return to_svcpu(vcpu)->gpr[num];
199 return vcpu->arch.gpr[num];
202 static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
204 to_svcpu(vcpu)->cr = val;
205 to_book3s(vcpu)->shadow_vcpu->cr = val;
208 static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
210 return to_svcpu(vcpu)->cr;
213 static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val)
215 to_svcpu(vcpu)->xer = val;
216 to_book3s(vcpu)->shadow_vcpu->xer = val;
219 static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu)
221 return to_svcpu(vcpu)->xer;
224 static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
226 to_svcpu(vcpu)->ctr = val;
229 static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
231 return to_svcpu(vcpu)->ctr;
234 static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
236 to_svcpu(vcpu)->lr = val;
239 static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
241 return to_svcpu(vcpu)->lr;
244 static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
246 to_svcpu(vcpu)->pc = val;
249 static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
251 return to_svcpu(vcpu)->pc;
254 static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
256 ulong pc = kvmppc_get_pc(vcpu);
257 struct kvmppc_book3s_shadow_vcpu *svcpu = to_svcpu(vcpu);
259 /* Load the instruction manually if it failed to do so in the
261 if (svcpu->last_inst == KVM_INST_FETCH_FAILED)
262 kvmppc_ld(vcpu, &pc, sizeof(u32), &svcpu->last_inst, false);
264 return svcpu->last_inst;
267 static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
269 return to_svcpu(vcpu)->fault_dar;
272 static inline bool kvmppc_critical_section(struct kvm_vcpu *vcpu)
274 ulong crit_raw = vcpu->arch.shared->critical;
275 ulong crit_r1 = kvmppc_get_gpr(vcpu, 1);
278 /* Truncate crit indicators in 32 bit mode */
279 if (!(vcpu->arch.shared->msr & MSR_SF)) {
280 crit_raw &= 0xffffffff;
281 crit_r1 &= 0xffffffff;
284 /* Critical section when crit == r1 */
285 crit = (crit_raw == crit_r1);
286 /* ... and we're in supervisor mode */
287 crit = crit && !(vcpu->arch.shared->msr & MSR_PR);
291 #else /* CONFIG_KVM_BOOK3S_PR */
293 static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu)
298 static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu,
299 unsigned long pending_now, unsigned long old_pending)
303 static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
305 vcpu->arch.gpr[num] = val;
308 static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
310 return vcpu->arch.gpr[num];
313 static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
318 static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
320 return vcpu->arch.cr;
323 static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val)
325 vcpu->arch.xer = val;
328 static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu)
330 return vcpu->arch.xer;
333 static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
335 vcpu->arch.ctr = val;
338 static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
340 return vcpu->arch.ctr;
343 static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
348 static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
350 return vcpu->arch.lr;
353 static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
358 static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
360 return vcpu->arch.pc;
363 static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
365 ulong pc = kvmppc_get_pc(vcpu);
367 /* Load the instruction manually if it failed to do so in the
369 if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED)
370 kvmppc_ld(vcpu, &pc, sizeof(u32), &vcpu->arch.last_inst, false);
372 return vcpu->arch.last_inst;
375 static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
377 return vcpu->arch.fault_dar;
380 static inline bool kvmppc_critical_section(struct kvm_vcpu *vcpu)
386 static inline unsigned long compute_tlbie_rb(unsigned long v, unsigned long r,
387 unsigned long pte_index)
389 unsigned long rb, va_low;
391 rb = (v & ~0x7fUL) << 16; /* AVA field */
392 va_low = pte_index >> 3;
393 if (v & HPTE_V_SECONDARY)
395 /* xor vsid from AVA */
396 if (!(v & HPTE_V_1TB_SEG))
401 if (v & HPTE_V_LARGE) {
402 rb |= 1; /* L field */
403 if (cpu_has_feature(CPU_FTR_ARCH_206) &&
405 /* non-16MB large page, must be 64k */
406 /* (masks depend on page size) */
407 rb |= 0x1000; /* page encoding in LP field */
408 rb |= (va_low & 0x7f) << 16; /* 7b of VA in AVA/LP field */
409 rb |= (va_low & 0xfe); /* AVAL field (P7 doesn't seem to care) */
413 rb |= (va_low & 0x7ff) << 12; /* remaining 11b of VA */
415 rb |= (v >> 54) & 0x300; /* B field */
419 /* Magic register values loaded into r3 and r4 before the 'sc' assembly
420 * instruction for the OSI hypercalls */
421 #define OSI_SC_MAGIC_R3 0x113724FA
422 #define OSI_SC_MAGIC_R4 0x77810F9B
424 #define INS_DCBZ 0x7c0007ec
426 #endif /* __ASM_KVM_BOOK3S_H__ */