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KVM: PPC: Book3S HV: Move struct kvmppc_vcore from kvm_host.h to kvm_book3s.h
[mirror_ubuntu-bionic-kernel.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
e64fb7e2
SJS		 72/*
73 * Struct for a virtual core.
74 * Note: entry_exit_map combines a bitmap of threads that have entered
75 * in the bottom 8 bits and a bitmap of threads that have exited in the
76 * next 8 bits. This is so that we can atomically set the entry bit
77 * iff the exit map is 0 without taking a lock.
78 */
79struct kvmppc_vcore {
80 int n_runnable;
81 int num_threads;
82 int entry_exit_map;
83 int napping_threads;
84 int first_vcpuid;
85 u16 pcpu;
86 u16 last_cpu;
87 u8 vcore_state;
88 u8 in_guest;
89 struct kvmppc_vcore *master_vcore;
90 struct list_head runnable_threads;
91 struct list_head preempt_list;
92 spinlock_t lock;
93 struct swait_queue_head wq;
94 spinlock_t stoltb_lock; /* protects stolen_tb and preempt_tb */
95 u64 stolen_tb;
96 u64 preempt_tb;
97 struct kvm_vcpu *runner;
98 struct kvm *kvm;
99 u64 tb_offset; /* guest timebase - host timebase */
100 ulong lpcr;
101 u32 arch_compat;
102 ulong pcr;
103 ulong dpdes; /* doorbell state (POWER8) */
104 ulong conferring_threads;
105};
106
4e342025 107struct kvmppc_vcpu_book3s {
4e342025 108 struct kvmppc_sid_map sid_map[SID_MAP_NUM];
4e342025
AG		 109 struct {
110 u64 esid;
111 u64 vsid;
112 } slb_shadow[64];
113 u8 slb_shadow_max;
4e342025
AG		 114 struct kvmppc_bat ibat[8];
115 struct kvmppc_bat dbat[8];
116 u64 hid[6];
d6d549b2 117 u64 gqr[8];
4e342025 118 u64 sdr1;
4e342025
AG		 119 u64 hior;
120 u64 msr_mask;
8b6db3bc
AG		 121#ifdef CONFIG_PPC_BOOK3S_32
122 u32 vsid_pool[VSID_POOL_SIZE];
ffe36492 123 u32 vsid_next;
8b6db3bc 124#else
ffe36492
BH		 125 u64 proto_vsid_first;
126 u64 proto_vsid_max;
127 u64 proto_vsid_next;
8b6db3bc
AG		 128#endif
129 int context_id[SID_CONTEXTS];
c4befc58 130
1022fc3d
AG		 131 bool hior_explicit; /* HIOR is set by ioctl, not PVR */
132
c4befc58
PM		 133 struct hlist_head hpte_hash_pte[HPTEG_HASH_NUM_PTE];
134 struct hlist_head hpte_hash_pte_long[HPTEG_HASH_NUM_PTE_LONG];
135 struct hlist_head hpte_hash_vpte[HPTEG_HASH_NUM_VPTE];
136 struct hlist_head hpte_hash_vpte_long[HPTEG_HASH_NUM_VPTE_LONG];
a4a0f252
PM		 137#ifdef CONFIG_PPC_BOOK3S_64
138 struct hlist_head hpte_hash_vpte_64k[HPTEG_HASH_NUM_VPTE_64K];
139#endif
c4befc58
PM		 140 int hpte_cache_count;
141 spinlock_t mmu_lock;
4e342025
AG		 142};
143
c9029c34
PM		 144#define VSID_REAL 0x07ffffffffc00000ULL
145#define VSID_BAT 0x07ffffffffb00000ULL
146#define VSID_64K 0x0800000000000000ULL
0f296829 147#define VSID_1T 0x1000000000000000ULL
f7bc74e1
AG		 148#define VSID_REAL_DR 0x2000000000000000ULL
149#define VSID_REAL_IR 0x4000000000000000ULL
5a1b419f 150#define VSID_PR 0x8000000000000000ULL
4e342025 151
af7b4d10 152extern void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong ea, ulong ea_mask);
4e342025 153extern void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 vp, u64 vp_mask);
af7b4d10 154extern void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end);
4e342025
AG		 155extern void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 new_msr);
156extern void kvmppc_mmu_book3s_64_init(struct kvm_vcpu *vcpu);
157extern void kvmppc_mmu_book3s_32_init(struct kvm_vcpu *vcpu);
de56a948 158extern void kvmppc_mmu_book3s_hv_init(struct kvm_vcpu *vcpu);
93b159b4
PM		 159extern int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte,
160 bool iswrite);
161extern void kvmppc_mmu_unmap_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte);
4e342025 162extern int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr);
0f296829 163extern void kvmppc_mmu_flush_segment(struct kvm_vcpu *vcpu, ulong eaddr, ulong seg_size);
4e342025 164extern void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu);
697d3899
PM		 165extern int kvmppc_book3s_hv_page_fault(struct kvm_run *run,
166 struct kvm_vcpu *vcpu, unsigned long addr,
167 unsigned long status);
168extern long kvmppc_hv_find_lock_hpte(struct kvm *kvm, gva_t eaddr,
169 unsigned long slb_v, unsigned long valid);
fef093be
AG		 170
171extern void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
172extern struct hpte_cache *kvmppc_mmu_hpte_cache_next(struct kvm_vcpu *vcpu);
d78bca72 173extern void kvmppc_mmu_hpte_cache_free(struct hpte_cache *pte);
fef093be
AG		 174extern void kvmppc_mmu_hpte_destroy(struct kvm_vcpu *vcpu);
175extern int kvmppc_mmu_hpte_init(struct kvm_vcpu *vcpu);
176extern void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
177extern int kvmppc_mmu_hpte_sysinit(void);
178extern void kvmppc_mmu_hpte_sysexit(void);
de56a948 179extern int kvmppc_mmu_hv_init(void);
ae2113a4 180extern int kvmppc_book3s_hcall_implemented(struct kvm *kvm, unsigned long hc);
fef093be 181
35c4a733 182/* XXX remove this export when load_last_inst() is generic */
5467a97d 183extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data);
4e342025 184extern void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec);
bc5ad3f3
BH		 185extern void kvmppc_book3s_dequeue_irqprio(struct kvm_vcpu *vcpu,
186 unsigned int vec);
de56a948 187extern void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags);
e15a1137
AG		 188extern void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat,
189 bool upper, u32 val);
aba3bd7f 190extern void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr);
831317b6 191extern int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu);
ba049e93
DW		 192extern kvm_pfn_t kvmppc_gpa_to_pfn(struct kvm_vcpu *vcpu, gpa_t gpa,
193 bool writing, bool *writable);
342d3db7
PM		 194extern void kvmppc_add_revmap_chain(struct kvm *kvm, struct revmap_entry *rev,
195 unsigned long *rmap, long pte_index, int realmode);
08fe1e7b 196extern void kvmppc_update_rmap_change(unsigned long *rmap, unsigned long psize);
6f22bd32 197extern void kvmppc_invalidate_hpte(struct kvm *kvm, __be64 *hptep,
342d3db7 198 unsigned long pte_index);
6f22bd32 199void kvmppc_clear_ref_hpte(struct kvm *kvm, __be64 *hptep,
55514893 200 unsigned long pte_index);
93e60249
PM		 201extern void *kvmppc_pin_guest_page(struct kvm *kvm, unsigned long addr,
202 unsigned long *nb_ret);
c35635ef
PM		 203extern void kvmppc_unpin_guest_page(struct kvm *kvm, void *addr,
204 unsigned long gpa, bool dirty);
7ed661bf
PM		 205extern long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags,
206 long pte_index, unsigned long pteh, unsigned long ptel,
207 pgd_t *pgdir, bool realmode, unsigned long *idx_ret);
6b445ad4
PM		 208extern long kvmppc_do_h_remove(struct kvm *kvm, unsigned long flags,
209 unsigned long pte_index, unsigned long avpn,
210 unsigned long *hpret);
82ed3616 211extern long kvmppc_hv_get_dirty_log(struct kvm *kvm,
dfe49dbd 212 struct kvm_memory_slot *memslot, unsigned long *map);
a0144e2a
PM		 213extern void kvmppc_update_lpcr(struct kvm *kvm, unsigned long lpcr,
214 unsigned long mask);
8e6afa36 215extern void kvmppc_set_fscr(struct kvm_vcpu *vcpu, u64 fscr);
4e342025 216
02143947 217extern void kvmppc_entry_trampoline(void);
de56a948 218extern void kvmppc_hv_entry_trampoline(void);
ca7f4203
AG		 219extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst);
220extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst);
0254f074 221extern int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd);
699a0ea0 222extern void kvmppc_pr_init_default_hcalls(struct kvm *kvm);
ae2113a4
PM		 223extern int kvmppc_hcall_impl_pr(unsigned long cmd);
224extern int kvmppc_hcall_impl_hv_realmode(unsigned long cmd);
c9dad7f9
AG		 225extern void kvmppc_copy_to_svcpu(struct kvmppc_book3s_shadow_vcpu *svcpu,
226 struct kvm_vcpu *vcpu);
227extern void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu,
228 struct kvmppc_book3s_shadow_vcpu *svcpu);
4e342025
AG		 229
230static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu)
231{
3ff95502 232 return vcpu->arch.book3s;
4e342025
AG		 233}
234
de56a948
PM		 235/* Also add subarch specific defines */
236
237#ifdef CONFIG_KVM_BOOK3S_32_HANDLER
238#include <asm/kvm_book3s_32.h>
239#endif
240#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
241#include <asm/kvm_book3s_64.h>
242#endif
243
c7f38f46
AG		 244static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
245{
a2d56020 246 vcpu->arch.gpr[num] = val;
c7f38f46
AG		 247}
248
249static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
250{
a2d56020 251 return vcpu->arch.gpr[num];
c7f38f46
AG		 252}
253
254static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
255{
a2d56020 256 vcpu->arch.cr = val;
c7f38f46
AG		 257}
258
259static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
260{
a2d56020 261 return vcpu->arch.cr;
c7f38f46
AG		 262}
263
c63517c2 264static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, ulong val)
c7f38f46 265{
a2d56020 266 vcpu->arch.xer = val;
c7f38f46
AG		 267}
268
c63517c2 269static inline ulong kvmppc_get_xer(struct kvm_vcpu *vcpu)
c7f38f46 270{
a2d56020 271 return vcpu->arch.xer;
c7f38f46
AG		 272}
273
274static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
275{
a2d56020 276 vcpu->arch.ctr = val;
c7f38f46
AG		 277}
278
279static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
280{
a2d56020 281 return vcpu->arch.ctr;
c7f38f46
AG		 282}
283
284static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
285{
a2d56020 286 vcpu->arch.lr = val;
c7f38f46
AG		 287}
288
289static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
290{
a2d56020 291 return vcpu->arch.lr;
c7f38f46
AG		 292}
293
294static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
295{
a2d56020 296 vcpu->arch.pc = val;
c7f38f46
AG		 297}
298
299static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
300{
a2d56020 301 return vcpu->arch.pc;
c7f38f46
AG		 302}
303
5deb8e7a 304static inline u64 kvmppc_get_msr(struct kvm_vcpu *vcpu);
73601775 305static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu)
c7f38f46 306{
5deb8e7a 307 return (kvmppc_get_msr(vcpu) & MSR_LE) != (MSR_KERNEL & MSR_LE);
73601775 308}
c7f38f46 309
c7f38f46
AG		 310static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
311{
a2d56020
PM		 312 return vcpu->arch.fault_dar;
313}
314
e59d24e6
GK		 315static inline bool is_kvmppc_resume_guest(int r)
316{
317 return (r == RESUME_GUEST || r == RESUME_GUEST_NV);
318}
319
c12fb43c
AG		 320static inline bool is_kvmppc_hv_enabled(struct kvm *kvm);
321static inline bool kvmppc_supports_magic_page(struct kvm_vcpu *vcpu)
322{
323 /* Only PR KVM supports the magic page */
324 return !is_kvmppc_hv_enabled(vcpu->kvm);
325}
326
99342cf8
DG		 327extern int kvmppc_h_logical_ci_load(struct kvm_vcpu *vcpu);
328extern int kvmppc_h_logical_ci_store(struct kvm_vcpu *vcpu);
329
ad0a048b
AG		 330/* Magic register values loaded into r3 and r4 before the 'sc' assembly
331 * instruction for the OSI hypercalls */
332#define OSI_SC_MAGIC_R3 0x113724FA
333#define OSI_SC_MAGIC_R4 0x77810F9B
334
4e342025 335#define INS_DCBZ 0x7c0007ec
8c32a2ea
BB		 336/* TO = 31 for unconditional trap */
337#define INS_TW 0x7fe00008
4e342025 338
043cc4d7
SW		 339/* LPIDs we support with this build -- runtime limit may be lower */
340#define KVMPPC_NR_LPIDS (LPID_RSVD + 1)
341
c01e3f66
AG		 342#define SPLIT_HACK_MASK 0xff000000
343#define SPLIT_HACK_OFFS 0xfb000000
344
4e342025 345#endif /* __ASM_KVM_BOOK3S_H__ */
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