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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 SUSE Linux Products GmbH 2009
16 *
17 * Authors: Alexander Graf <agraf@suse.de>
18 */
19
20#ifndef __ASM_KVM_BOOK3S_H__
21#define __ASM_KVM_BOOK3S_H__
22
23#include <linux/types.h>
24#include <linux/kvm_host.h>
25#include <asm/kvm_book3s_asm.h>
26
27struct 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;
36};
37
38struct kvmppc_sid_map {
39 u64 guest_vsid;
40 u64 guest_esid;
41 u64 host_vsid;
42 bool valid : 1;
43};
44
45#define SID_MAP_BITS 9
46#define SID_MAP_NUM (1 << SID_MAP_BITS)
47#define SID_MAP_MASK (SID_MAP_NUM - 1)
48
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
55
56struct 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;
70};
71
72struct 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#ifdef CONFIG_PPC_BOOK3S_32
87 u32 vsid_pool[VSID_POOL_SIZE];
88 u32 vsid_next;
89#else
90 u64 proto_vsid_first;
91 u64 proto_vsid_max;
92 u64 proto_vsid_next;
93#endif
94 int context_id[SID_CONTEXTS];
95
96 bool hior_explicit; /* HIOR is set by ioctl, not PVR */
97
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];
104#endif
105 int hpte_cache_count;
106 spinlock_t mmu_lock;
107};
108
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
116
117extern void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong ea, ulong ea_mask);
118extern void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 vp, u64 vp_mask);
119extern void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end);
120extern void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 new_msr);
121extern void kvmppc_mmu_book3s_64_init(struct kvm_vcpu *vcpu);
122extern void kvmppc_mmu_book3s_32_init(struct kvm_vcpu *vcpu);
123extern void kvmppc_mmu_book3s_hv_init(struct kvm_vcpu *vcpu);
124extern int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte,
125 bool iswrite);
126extern void kvmppc_mmu_unmap_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte);
127extern int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr);
128extern void kvmppc_mmu_flush_segment(struct kvm_vcpu *vcpu, ulong eaddr, ulong seg_size);
129extern void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu);
130extern int kvmppc_book3s_hv_page_fault(struct kvm_run *run,
131 struct kvm_vcpu *vcpu, unsigned long addr,
132 unsigned long status);
133extern long kvmppc_hv_find_lock_hpte(struct kvm *kvm, gva_t eaddr,
134 unsigned long slb_v, unsigned long valid);
135
136extern void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
137extern struct hpte_cache *kvmppc_mmu_hpte_cache_next(struct kvm_vcpu *vcpu);
138extern void kvmppc_mmu_hpte_cache_free(struct hpte_cache *pte);
139extern void kvmppc_mmu_hpte_destroy(struct kvm_vcpu *vcpu);
140extern int kvmppc_mmu_hpte_init(struct kvm_vcpu *vcpu);
141extern void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
142extern int kvmppc_mmu_hpte_sysinit(void);
143extern void kvmppc_mmu_hpte_sysexit(void);
144extern int kvmppc_mmu_hv_init(void);
145extern int kvmppc_book3s_hcall_implemented(struct kvm *kvm, unsigned long hc);
146
147/* XXX remove this export when load_last_inst() is generic */
148extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data);
149extern void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec);
150extern void kvmppc_book3s_dequeue_irqprio(struct kvm_vcpu *vcpu,
151 unsigned int vec);
152extern void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags);
153extern void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat,
154 bool upper, u32 val);
155extern void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr);
156extern int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu);
157extern kvm_pfn_t kvmppc_gpa_to_pfn(struct kvm_vcpu *vcpu, gpa_t gpa,
158 bool writing, bool *writable);
159extern void kvmppc_add_revmap_chain(struct kvm *kvm, struct revmap_entry *rev,
160 unsigned long *rmap, long pte_index, int realmode);
161extern void kvmppc_update_rmap_change(unsigned long *rmap, unsigned long psize);
162extern void kvmppc_invalidate_hpte(struct kvm *kvm, __be64 *hptep,
163 unsigned long pte_index);
164void kvmppc_clear_ref_hpte(struct kvm *kvm, __be64 *hptep,
165 unsigned long pte_index);
166extern void *kvmppc_pin_guest_page(struct kvm *kvm, unsigned long addr,
167 unsigned long *nb_ret);
168extern void kvmppc_unpin_guest_page(struct kvm *kvm, void *addr,
169 unsigned long gpa, bool dirty);
170extern long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags,
171 long pte_index, unsigned long pteh, unsigned long ptel,
172 pgd_t *pgdir, bool realmode, unsigned long *idx_ret);
173extern long kvmppc_do_h_remove(struct kvm *kvm, unsigned long flags,
174 unsigned long pte_index, unsigned long avpn,
175 unsigned long *hpret);
176extern long kvmppc_hv_get_dirty_log(struct kvm *kvm,
177 struct kvm_memory_slot *memslot, unsigned long *map);
178extern void kvmppc_update_lpcr(struct kvm *kvm, unsigned long lpcr,
179 unsigned long mask);
180extern void kvmppc_set_fscr(struct kvm_vcpu *vcpu, u64 fscr);
181
182extern void kvmppc_entry_trampoline(void);
183extern void kvmppc_hv_entry_trampoline(void);
184extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst);
185extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst);
186extern int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd);
187extern void kvmppc_pr_init_default_hcalls(struct kvm *kvm);
188extern int kvmppc_hcall_impl_pr(unsigned long cmd);
189extern int kvmppc_hcall_impl_hv_realmode(unsigned long cmd);
190extern void kvmppc_copy_to_svcpu(struct kvmppc_book3s_shadow_vcpu *svcpu,
191 struct kvm_vcpu *vcpu);
192extern void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu,
193 struct kvmppc_book3s_shadow_vcpu *svcpu);
194
195static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu)
196{
197 return vcpu->arch.book3s;
198}
199
200/* Also add subarch specific defines */
201
202#ifdef CONFIG_KVM_BOOK3S_32_HANDLER
203#include <asm/kvm_book3s_32.h>
204#endif
205#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
206#include <asm/kvm_book3s_64.h>
207#endif
208
209static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
210{
211 vcpu->arch.gpr[num] = val;
212}
213
214static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
215{
216 return vcpu->arch.gpr[num];
217}
218
219static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
220{
221 vcpu->arch.cr = val;
222}
223
224static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
225{
226 return vcpu->arch.cr;
227}
228
229static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, ulong val)
230{
231 vcpu->arch.xer = val;
232}
233
234static inline ulong kvmppc_get_xer(struct kvm_vcpu *vcpu)
235{
236 return vcpu->arch.xer;
237}
238
239static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
240{
241 vcpu->arch.ctr = val;
242}
243
244static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
245{
246 return vcpu->arch.ctr;
247}
248
249static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
250{
251 vcpu->arch.lr = val;
252}
253
254static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
255{
256 return vcpu->arch.lr;
257}
258
259static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
260{
261 vcpu->arch.pc = val;
262}
263
264static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
265{
266 return vcpu->arch.pc;
267}
268
269static inline u64 kvmppc_get_msr(struct kvm_vcpu *vcpu);
270static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu)
271{
272 return (kvmppc_get_msr(vcpu) & MSR_LE) != (MSR_KERNEL & MSR_LE);
273}
274
275static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
276{
277 return vcpu->arch.fault_dar;
278}
279
280static inline bool is_kvmppc_resume_guest(int r)
281{
282 return (r == RESUME_GUEST || r == RESUME_GUEST_NV);
283}
284
285static inline bool is_kvmppc_hv_enabled(struct kvm *kvm);
286static inline bool kvmppc_supports_magic_page(struct kvm_vcpu *vcpu)
287{
288 /* Only PR KVM supports the magic page */
289 return !is_kvmppc_hv_enabled(vcpu->kvm);
290}
291
292extern int kvmppc_h_logical_ci_load(struct kvm_vcpu *vcpu);
293extern int kvmppc_h_logical_ci_store(struct kvm_vcpu *vcpu);
294
295/* Magic register values loaded into r3 and r4 before the 'sc' assembly
296 * instruction for the OSI hypercalls */
297#define OSI_SC_MAGIC_R3 0x113724FA
298#define OSI_SC_MAGIC_R4 0x77810F9B
299
300#define INS_DCBZ 0x7c0007ec
301/* TO = 31 for unconditional trap */
302#define INS_TW 0x7fe00008
303
304/* LPIDs we support with this build -- runtime limit may be lower */
305#define KVMPPC_NR_LPIDS (LPID_RSVD + 1)
306
307#define SPLIT_HACK_MASK 0xff000000
308#define SPLIT_HACK_OFFS 0xfb000000
309
310#endif /* __ASM_KVM_BOOK3S_H__ */
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 SUSE Linux Products GmbH 2009
16 *
17 * Authors: Alexander Graf <agraf@suse.de>
18 */
19
20#ifndef __ASM_KVM_BOOK3S_H__
21#define __ASM_KVM_BOOK3S_H__
22
23#include <linux/types.h>
24#include <linux/kvm_host.h>
25#include <asm/kvm_book3s_asm.h>
26
27struct 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;
36};
37
38struct kvmppc_sid_map {
39 u64 guest_vsid;
40 u64 guest_esid;
41 u64 host_vsid;
42 bool valid : 1;
43};
44
45#define SID_MAP_BITS 9
46#define SID_MAP_NUM (1 << SID_MAP_BITS)
47#define SID_MAP_MASK (SID_MAP_NUM - 1)
48
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
55
56struct 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 struct rcu_head rcu_head;
62 u64 host_va;
63 u64 pfn;
64 ulong slot;
65 struct kvmppc_pte pte;
66};
67
68struct kvmppc_vcpu_book3s {
69 struct kvm_vcpu vcpu;
70 struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
71 struct kvmppc_sid_map sid_map[SID_MAP_NUM];
72 struct {
73 u64 esid;
74 u64 vsid;
75 } slb_shadow[64];
76 u8 slb_shadow_max;
77 struct kvmppc_bat ibat[8];
78 struct kvmppc_bat dbat[8];
79 u64 hid[6];
80 u64 gqr[8];
81 u64 sdr1;
82 u64 hior;
83 u64 msr_mask;
84 u64 vsid_next;
85#ifdef CONFIG_PPC_BOOK3S_32
86 u32 vsid_pool[VSID_POOL_SIZE];
87#else
88 u64 vsid_first;
89 u64 vsid_max;
90#endif
91 int context_id[SID_CONTEXTS];
92
93 struct hlist_head hpte_hash_pte[HPTEG_HASH_NUM_PTE];
94 struct hlist_head hpte_hash_pte_long[HPTEG_HASH_NUM_PTE_LONG];
95 struct hlist_head hpte_hash_vpte[HPTEG_HASH_NUM_VPTE];
96 struct hlist_head hpte_hash_vpte_long[HPTEG_HASH_NUM_VPTE_LONG];
97 int hpte_cache_count;
98 spinlock_t mmu_lock;
99};
100
101#define CONTEXT_HOST 0
102#define CONTEXT_GUEST 1
103#define CONTEXT_GUEST_END 2
104
105#define VSID_REAL 0x1fffffffffc00000ULL
106#define VSID_BAT 0x1fffffffffb00000ULL
107#define VSID_REAL_DR 0x2000000000000000ULL
108#define VSID_REAL_IR 0x4000000000000000ULL
109#define VSID_PR 0x8000000000000000ULL
110
111extern void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong ea, ulong ea_mask);
112extern void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 vp, u64 vp_mask);
113extern void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end);
114extern void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 new_msr);
115extern void kvmppc_set_pvr(struct kvm_vcpu *vcpu, u32 pvr);
116extern void kvmppc_mmu_book3s_64_init(struct kvm_vcpu *vcpu);
117extern void kvmppc_mmu_book3s_32_init(struct kvm_vcpu *vcpu);
118extern void kvmppc_mmu_book3s_hv_init(struct kvm_vcpu *vcpu);
119extern int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte);
120extern int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr);
121extern void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu);
122
123extern void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
124extern struct hpte_cache *kvmppc_mmu_hpte_cache_next(struct kvm_vcpu *vcpu);
125extern void kvmppc_mmu_hpte_destroy(struct kvm_vcpu *vcpu);
126extern int kvmppc_mmu_hpte_init(struct kvm_vcpu *vcpu);
127extern void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
128extern int kvmppc_mmu_hpte_sysinit(void);
129extern void kvmppc_mmu_hpte_sysexit(void);
130extern int kvmppc_mmu_hv_init(void);
131
132extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data);
133extern int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data);
134extern void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec);
135extern void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags);
136extern void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat,
137 bool upper, u32 val);
138extern void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr);
139extern int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu);
140extern pfn_t kvmppc_gfn_to_pfn(struct kvm_vcpu *vcpu, gfn_t gfn);
141
142extern void kvmppc_handler_lowmem_trampoline(void);
143extern void kvmppc_handler_trampoline_enter(void);
144extern void kvmppc_rmcall(ulong srr0, ulong srr1);
145extern void kvmppc_hv_entry_trampoline(void);
146extern void kvmppc_load_up_fpu(void);
147extern void kvmppc_load_up_altivec(void);
148extern void kvmppc_load_up_vsx(void);
149extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst);
150extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst);
151
152static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu)
153{
154 return container_of(vcpu, struct kvmppc_vcpu_book3s, vcpu);
155}
156
157extern void kvm_return_point(void);
158
159/* Also add subarch specific defines */
160
161#ifdef CONFIG_KVM_BOOK3S_32_HANDLER
162#include <asm/kvm_book3s_32.h>
163#endif
164#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
165#include <asm/kvm_book3s_64.h>
166#endif
167
168#ifdef CONFIG_KVM_BOOK3S_PR
169
170static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu)
171{
172 return to_book3s(vcpu)->hior;
173}
174
175static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu,
176 unsigned long pending_now, unsigned long old_pending)
177{
178 if (pending_now)
179 vcpu->arch.shared->int_pending = 1;
180 else if (old_pending)
181 vcpu->arch.shared->int_pending = 0;
182}
183
184static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
185{
186 if ( num < 14 ) {
187 to_svcpu(vcpu)->gpr[num] = val;
188 to_book3s(vcpu)->shadow_vcpu->gpr[num] = val;
189 } else
190 vcpu->arch.gpr[num] = val;
191}
192
193static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
194{
195 if ( num < 14 )
196 return to_svcpu(vcpu)->gpr[num];
197 else
198 return vcpu->arch.gpr[num];
199}
200
201static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
202{
203 to_svcpu(vcpu)->cr = val;
204 to_book3s(vcpu)->shadow_vcpu->cr = val;
205}
206
207static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
208{
209 return to_svcpu(vcpu)->cr;
210}
211
212static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val)
213{
214 to_svcpu(vcpu)->xer = val;
215 to_book3s(vcpu)->shadow_vcpu->xer = val;
216}
217
218static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu)
219{
220 return to_svcpu(vcpu)->xer;
221}
222
223static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
224{
225 to_svcpu(vcpu)->ctr = val;
226}
227
228static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
229{
230 return to_svcpu(vcpu)->ctr;
231}
232
233static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
234{
235 to_svcpu(vcpu)->lr = val;
236}
237
238static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
239{
240 return to_svcpu(vcpu)->lr;
241}
242
243static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
244{
245 to_svcpu(vcpu)->pc = val;
246}
247
248static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
249{
250 return to_svcpu(vcpu)->pc;
251}
252
253static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
254{
255 ulong pc = kvmppc_get_pc(vcpu);
256 struct kvmppc_book3s_shadow_vcpu *svcpu = to_svcpu(vcpu);
257
258 /* Load the instruction manually if it failed to do so in the
259 * exit path */
260 if (svcpu->last_inst == KVM_INST_FETCH_FAILED)
261 kvmppc_ld(vcpu, &pc, sizeof(u32), &svcpu->last_inst, false);
262
263 return svcpu->last_inst;
264}
265
266static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
267{
268 return to_svcpu(vcpu)->fault_dar;
269}
270
271static inline bool kvmppc_critical_section(struct kvm_vcpu *vcpu)
272{
273 ulong crit_raw = vcpu->arch.shared->critical;
274 ulong crit_r1 = kvmppc_get_gpr(vcpu, 1);
275 bool crit;
276
277 /* Truncate crit indicators in 32 bit mode */
278 if (!(vcpu->arch.shared->msr & MSR_SF)) {
279 crit_raw &= 0xffffffff;
280 crit_r1 &= 0xffffffff;
281 }
282
283 /* Critical section when crit == r1 */
284 crit = (crit_raw == crit_r1);
285 /* ... and we're in supervisor mode */
286 crit = crit && !(vcpu->arch.shared->msr & MSR_PR);
287
288 return crit;
289}
290#else /* CONFIG_KVM_BOOK3S_PR */
291
292static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu)
293{
294 return 0;
295}
296
297static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu,
298 unsigned long pending_now, unsigned long old_pending)
299{
300}
301
302static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
303{
304 vcpu->arch.gpr[num] = val;
305}
306
307static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
308{
309 return vcpu->arch.gpr[num];
310}
311
312static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
313{
314 vcpu->arch.cr = val;
315}
316
317static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
318{
319 return vcpu->arch.cr;
320}
321
322static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val)
323{
324 vcpu->arch.xer = val;
325}
326
327static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu)
328{
329 return vcpu->arch.xer;
330}
331
332static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
333{
334 vcpu->arch.ctr = val;
335}
336
337static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
338{
339 return vcpu->arch.ctr;
340}
341
342static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
343{
344 vcpu->arch.lr = val;
345}
346
347static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
348{
349 return vcpu->arch.lr;
350}
351
352static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
353{
354 vcpu->arch.pc = val;
355}
356
357static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
358{
359 return vcpu->arch.pc;
360}
361
362static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
363{
364 ulong pc = kvmppc_get_pc(vcpu);
365
366 /* Load the instruction manually if it failed to do so in the
367 * exit path */
368 if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED)
369 kvmppc_ld(vcpu, &pc, sizeof(u32), &vcpu->arch.last_inst, false);
370
371 return vcpu->arch.last_inst;
372}
373
374static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
375{
376 return vcpu->arch.fault_dar;
377}
378
379static inline bool kvmppc_critical_section(struct kvm_vcpu *vcpu)
380{
381 return false;
382}
383#endif
384
385/* Magic register values loaded into r3 and r4 before the 'sc' assembly
386 * instruction for the OSI hypercalls */
387#define OSI_SC_MAGIC_R3 0x113724FA
388#define OSI_SC_MAGIC_R4 0x77810F9B
389
390#define INS_DCBZ 0x7c0007ec
391
392#endif /* __ASM_KVM_BOOK3S_H__ */