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Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck...
[linux-2.6-block.git] / arch / powerpc / include / asm / kvm_book3s.h
CommitLineData
4e342025
AG		 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>
2191d657 25#include <asm/kvm_book3s_asm.h>
4e342025 26
4e342025 27struct kvmppc_bat {
e15a1137 28 u64 raw;
4e342025
AG		 29 u32 bepi;
30 u32 bepi_mask;
4e342025
AG		 31 u32 brpn;
32 u8 wimg;
33 u8 pp;
3ed9c6d2
AG		 34 bool vs : 1;
35 bool vp : 1;
4e342025
AG		 36};
37
38struct kvmppc_sid_map {
39 u64 guest_vsid;
40 u64 guest_esid;
41 u64 host_vsid;
3ed9c6d2 42 bool valid : 1;
4e342025
AG		 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
8b6db3bc
AG		 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
c4befc58
PM		 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;
a4a0f252
PM		 61#ifdef CONFIG_PPC_BOOK3S_64
62 struct hlist_node list_vpte_64k;
63#endif
c4befc58 64 struct rcu_head rcu_head;
5524a27d 65 u64 host_vpn;
c4befc58
PM		 66 u64 pfn;
67 ulong slot;
68 struct kvmppc_pte pte;
c9029c34 69 int pagesize;
c4befc58
PM		 70};
71
4e342025 72struct kvmppc_vcpu_book3s {
4e342025 73 struct kvmppc_sid_map sid_map[SID_MAP_NUM];
4e342025
AG		 74 struct {
75 u64 esid;
76 u64 vsid;
77 } slb_shadow[64];
78 u8 slb_shadow_max;
4e342025
AG		 79 struct kvmppc_bat ibat[8];
80 struct kvmppc_bat dbat[8];
81 u64 hid[6];
d6d549b2 82 u64 gqr[8];
4e342025 83 u64 sdr1;
4e342025
AG		 84 u64 hior;
85 u64 msr_mask;
b0a94d4e
PM		 86 u64 purr_offset;
87 u64 spurr_offset;
8b6db3bc
AG		 88#ifdef CONFIG_PPC_BOOK3S_32
89 u32 vsid_pool[VSID_POOL_SIZE];
ffe36492 90 u32 vsid_next;
8b6db3bc 91#else
ffe36492
BH		 92 u64 proto_vsid_first;
93 u64 proto_vsid_max;
94 u64 proto_vsid_next;
8b6db3bc
AG		 95#endif
96 int context_id[SID_CONTEXTS];
c4befc58 97
1022fc3d
AG		 98 bool hior_explicit; /* HIOR is set by ioctl, not PVR */
99
c4befc58
PM		 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];
a4a0f252
PM		 104#ifdef CONFIG_PPC_BOOK3S_64
105 struct hlist_head hpte_hash_vpte_64k[HPTEG_HASH_NUM_VPTE_64K];
106#endif
c4befc58
PM		 107 int hpte_cache_count;
108 spinlock_t mmu_lock;
4e342025
AG		 109};
110
111#define CONTEXT_HOST 0
112#define CONTEXT_GUEST 1
113#define CONTEXT_GUEST_END 2
114
c9029c34
PM		 115#define VSID_REAL 0x07ffffffffc00000ULL
116#define VSID_BAT 0x07ffffffffb00000ULL
117#define VSID_64K 0x0800000000000000ULL
0f296829 118#define VSID_1T 0x1000000000000000ULL
f7bc74e1
AG		 119#define VSID_REAL_DR 0x2000000000000000ULL
120#define VSID_REAL_IR 0x4000000000000000ULL
5a1b419f 121#define VSID_PR 0x8000000000000000ULL
4e342025 122
af7b4d10 123extern void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong ea, ulong ea_mask);
4e342025 124extern void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 vp, u64 vp_mask);
af7b4d10 125extern void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end);
4e342025
AG		 126extern void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 new_msr);
127extern void kvmppc_mmu_book3s_64_init(struct kvm_vcpu *vcpu);
128extern void kvmppc_mmu_book3s_32_init(struct kvm_vcpu *vcpu);
de56a948 129extern void kvmppc_mmu_book3s_hv_init(struct kvm_vcpu *vcpu);
93b159b4
PM		 130extern int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte,
131 bool iswrite);
132extern void kvmppc_mmu_unmap_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte);
4e342025 133extern int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr);
0f296829 134extern void kvmppc_mmu_flush_segment(struct kvm_vcpu *vcpu, ulong eaddr, ulong seg_size);
4e342025 135extern void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu);
697d3899
PM		 136extern int kvmppc_book3s_hv_page_fault(struct kvm_run *run,
137 struct kvm_vcpu *vcpu, unsigned long addr,
138 unsigned long status);
139extern long kvmppc_hv_find_lock_hpte(struct kvm *kvm, gva_t eaddr,
140 unsigned long slb_v, unsigned long valid);
fef093be
AG		 141
142extern void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
143extern struct hpte_cache *kvmppc_mmu_hpte_cache_next(struct kvm_vcpu *vcpu);
d78bca72 144extern void kvmppc_mmu_hpte_cache_free(struct hpte_cache *pte);
fef093be
AG		 145extern void kvmppc_mmu_hpte_destroy(struct kvm_vcpu *vcpu);
146extern int kvmppc_mmu_hpte_init(struct kvm_vcpu *vcpu);
147extern void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
148extern int kvmppc_mmu_hpte_sysinit(void);
149extern void kvmppc_mmu_hpte_sysexit(void);
de56a948 150extern int kvmppc_mmu_hv_init(void);
fef093be 151
5467a97d
AG		 152extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data);
153extern int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data);
4e342025 154extern void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec);
bc5ad3f3
BH		 155extern void kvmppc_book3s_dequeue_irqprio(struct kvm_vcpu *vcpu,
156 unsigned int vec);
de56a948 157extern void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags);
e15a1137
AG		 158extern void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat,
159 bool upper, u32 val);
aba3bd7f 160extern void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr);
831317b6 161extern int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu);
93b159b4
PM		 162extern pfn_t kvmppc_gfn_to_pfn(struct kvm_vcpu *vcpu, gfn_t gfn, bool writing,
163 bool *writable);
342d3db7
PM		 164extern void kvmppc_add_revmap_chain(struct kvm *kvm, struct revmap_entry *rev,
165 unsigned long *rmap, long pte_index, int realmode);
166extern void kvmppc_invalidate_hpte(struct kvm *kvm, unsigned long *hptep,
167 unsigned long pte_index);
55514893
PM		 168void kvmppc_clear_ref_hpte(struct kvm *kvm, unsigned long *hptep,
169 unsigned long pte_index);
93e60249
PM		 170extern void *kvmppc_pin_guest_page(struct kvm *kvm, unsigned long addr,
171 unsigned long *nb_ret);
c35635ef
PM		 172extern void kvmppc_unpin_guest_page(struct kvm *kvm, void *addr,
173 unsigned long gpa, bool dirty);
c77162de
PM		 174extern long kvmppc_virtmode_h_enter(struct kvm_vcpu *vcpu, unsigned long flags,
175 long pte_index, unsigned long pteh, unsigned long ptel);
7ed661bf
PM		 176extern 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);
6b445ad4
PM		 179extern long kvmppc_do_h_remove(struct kvm *kvm, unsigned long flags,
180 unsigned long pte_index, unsigned long avpn,
181 unsigned long *hpret);
82ed3616 182extern long kvmppc_hv_get_dirty_log(struct kvm *kvm,
dfe49dbd 183 struct kvm_memory_slot *memslot, unsigned long *map);
a0144e2a
PM		 184extern void kvmppc_update_lpcr(struct kvm *kvm, unsigned long lpcr,
185 unsigned long mask);
4e342025 186
02143947 187extern void kvmppc_entry_trampoline(void);
de56a948 188extern void kvmppc_hv_entry_trampoline(void);
d5e52813
AG		 189extern void kvmppc_load_up_fpu(void);
190extern void kvmppc_load_up_altivec(void);
191extern void kvmppc_load_up_vsx(void);
ca7f4203
AG		 192extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst);
193extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst);
0254f074 194extern int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd);
c9dad7f9
AG		 195extern void kvmppc_copy_to_svcpu(struct kvmppc_book3s_shadow_vcpu *svcpu,
196 struct kvm_vcpu *vcpu);
197extern void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu,
198 struct kvmppc_book3s_shadow_vcpu *svcpu);
4e342025
AG		 199
200static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu)
201{
3ff95502 202 return vcpu->arch.book3s;
4e342025
AG		 203}
204
de56a948
PM		 205/* Also add subarch specific defines */
206
207#ifdef CONFIG_KVM_BOOK3S_32_HANDLER
208#include <asm/kvm_book3s_32.h>
209#endif
210#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
211#include <asm/kvm_book3s_64.h>
212#endif
213
c7f38f46
AG		 214static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
215{
a2d56020 216 vcpu->arch.gpr[num] = val;
c7f38f46
AG		 217}
218
219static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
220{
a2d56020 221 return vcpu->arch.gpr[num];
c7f38f46
AG		 222}
223
224static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
225{
a2d56020 226 vcpu->arch.cr = val;
c7f38f46
AG		 227}
228
229static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
230{
a2d56020 231 return vcpu->arch.cr;
c7f38f46
AG		 232}
233
234static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val)
235{
a2d56020 236 vcpu->arch.xer = val;
c7f38f46
AG		 237}
238
239static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu)
240{
a2d56020 241 return vcpu->arch.xer;
c7f38f46
AG		 242}
243
244static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
245{
a2d56020 246 vcpu->arch.ctr = val;
c7f38f46
AG		 247}
248
249static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
250{
a2d56020 251 return vcpu->arch.ctr;
c7f38f46
AG		 252}
253
254static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
255{
a2d56020 256 vcpu->arch.lr = val;
c7f38f46
AG		 257}
258
259static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
260{
a2d56020 261 return vcpu->arch.lr;
c7f38f46
AG		 262}
263
264static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
265{
a2d56020 266 vcpu->arch.pc = val;
c7f38f46
AG		 267}
268
269static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
270{
a2d56020 271 return vcpu->arch.pc;
c7f38f46
AG		 272}
273
274static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
275{
276 ulong pc = kvmppc_get_pc(vcpu);
c7f38f46
AG		 277
278 /* Load the instruction manually if it failed to do so in the
279 * exit path */
a2d56020
PM		 280 if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED)
281 kvmppc_ld(vcpu, &pc, sizeof(u32), &vcpu->arch.last_inst, false);
c7f38f46 282
a2d56020 283 return vcpu->arch.last_inst;
c7f38f46
AG		 284}
285
8b23de29
PM		 286/*
287 * Like kvmppc_get_last_inst(), but for fetching a sc instruction.
288 * Because the sc instruction sets SRR0 to point to the following
289 * instruction, we have to fetch from pc - 4.
290 */
291static inline u32 kvmppc_get_last_sc(struct kvm_vcpu *vcpu)
292{
293 ulong pc = kvmppc_get_pc(vcpu) - 4;
8b23de29
PM		 294
295 /* Load the instruction manually if it failed to do so in the
296 * exit path */
a2d56020
PM		 297 if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED)
298 kvmppc_ld(vcpu, &pc, sizeof(u32), &vcpu->arch.last_inst, false);
8b23de29 299
a2d56020 300 return vcpu->arch.last_inst;
8b23de29
PM		 301}
302
c7f38f46
AG		 303static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
304{
a2d56020
PM		 305 return vcpu->arch.fault_dar;
306}
307
ad0a048b
AG		 308/* Magic register values loaded into r3 and r4 before the 'sc' assembly
309 * instruction for the OSI hypercalls */
310#define OSI_SC_MAGIC_R3 0x113724FA
311#define OSI_SC_MAGIC_R4 0x77810F9B
312
4e342025 313#define INS_DCBZ 0x7c0007ec
8c32a2ea
BB		 314/* TO = 31 for unconditional trap */
315#define INS_TW 0x7fe00008
4e342025 316
043cc4d7
SW		 317/* LPIDs we support with this build -- runtime limit may be lower */
318#define KVMPPC_NR_LPIDS (LPID_RSVD + 1)
319
4e342025 320#endif /* __ASM_KVM_BOOK3S_H__ */
Linux 6.x block layer and io_uring tree(s)