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powernv/powerpc: Add winkle support for offline cpus
[deliverable/linux.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;
8b6db3bc
AG		 86#ifdef CONFIG_PPC_BOOK3S_32
87 u32 vsid_pool[VSID_POOL_SIZE];
ffe36492 88 u32 vsid_next;
8b6db3bc 89#else
ffe36492
BH		 90 u64 proto_vsid_first;
91 u64 proto_vsid_max;
92 u64 proto_vsid_next;
8b6db3bc
AG		 93#endif
94 int context_id[SID_CONTEXTS];
c4befc58 95
1022fc3d
AG		 96 bool hior_explicit; /* HIOR is set by ioctl, not PVR */
97
c4befc58
PM		 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];
a4a0f252
PM		 102#ifdef CONFIG_PPC_BOOK3S_64
103 struct hlist_head hpte_hash_vpte_64k[HPTEG_HASH_NUM_VPTE_64K];
104#endif
c4befc58
PM		 105 int hpte_cache_count;
106 spinlock_t mmu_lock;
4e342025
AG		 107};
108
109#define CONTEXT_HOST 0
110#define CONTEXT_GUEST 1
111#define CONTEXT_GUEST_END 2
112
c9029c34
PM		 113#define VSID_REAL 0x07ffffffffc00000ULL
114#define VSID_BAT 0x07ffffffffb00000ULL
115#define VSID_64K 0x0800000000000000ULL
0f296829 116#define VSID_1T 0x1000000000000000ULL
f7bc74e1
AG		 117#define VSID_REAL_DR 0x2000000000000000ULL
118#define VSID_REAL_IR 0x4000000000000000ULL
5a1b419f 119#define VSID_PR 0x8000000000000000ULL
4e342025 120
af7b4d10 121extern void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong ea, ulong ea_mask);
4e342025 122extern void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 vp, u64 vp_mask);
af7b4d10 123extern void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end);
4e342025
AG		 124extern void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 new_msr);
125extern void kvmppc_mmu_book3s_64_init(struct kvm_vcpu *vcpu);
126extern void kvmppc_mmu_book3s_32_init(struct kvm_vcpu *vcpu);
de56a948 127extern void kvmppc_mmu_book3s_hv_init(struct kvm_vcpu *vcpu);
93b159b4
PM		 128extern int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte,
129 bool iswrite);
130extern void kvmppc_mmu_unmap_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte);
4e342025 131extern int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr);
0f296829 132extern void kvmppc_mmu_flush_segment(struct kvm_vcpu *vcpu, ulong eaddr, ulong seg_size);
4e342025 133extern void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu);
697d3899
PM		 134extern int kvmppc_book3s_hv_page_fault(struct kvm_run *run,
135 struct kvm_vcpu *vcpu, unsigned long addr,
136 unsigned long status);
137extern long kvmppc_hv_find_lock_hpte(struct kvm *kvm, gva_t eaddr,
138 unsigned long slb_v, unsigned long valid);
fef093be
AG		 139
140extern void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
141extern struct hpte_cache *kvmppc_mmu_hpte_cache_next(struct kvm_vcpu *vcpu);
d78bca72 142extern void kvmppc_mmu_hpte_cache_free(struct hpte_cache *pte);
fef093be
AG		 143extern void kvmppc_mmu_hpte_destroy(struct kvm_vcpu *vcpu);
144extern int kvmppc_mmu_hpte_init(struct kvm_vcpu *vcpu);
145extern void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
146extern int kvmppc_mmu_hpte_sysinit(void);
147extern void kvmppc_mmu_hpte_sysexit(void);
de56a948 148extern int kvmppc_mmu_hv_init(void);
ae2113a4 149extern int kvmppc_book3s_hcall_implemented(struct kvm *kvm, unsigned long hc);
fef093be 150
35c4a733 151/* XXX remove this export when load_last_inst() is generic */
5467a97d 152extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data);
4e342025 153extern void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec);
bc5ad3f3
BH		 154extern void kvmppc_book3s_dequeue_irqprio(struct kvm_vcpu *vcpu,
155 unsigned int vec);
de56a948 156extern void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags);
e15a1137
AG		 157extern void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat,
158 bool upper, u32 val);
aba3bd7f 159extern void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr);
831317b6 160extern int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu);
89b68c96 161extern pfn_t kvmppc_gpa_to_pfn(struct kvm_vcpu *vcpu, gpa_t gpa, bool writing,
93b159b4 162 bool *writable);
342d3db7
PM		 163extern void kvmppc_add_revmap_chain(struct kvm *kvm, struct revmap_entry *rev,
164 unsigned long *rmap, long pte_index, int realmode);
6f22bd32 165extern void kvmppc_invalidate_hpte(struct kvm *kvm, __be64 *hptep,
342d3db7 166 unsigned long pte_index);
6f22bd32 167void kvmppc_clear_ref_hpte(struct kvm *kvm, __be64 *hptep,
55514893 168 unsigned long pte_index);
93e60249
PM		 169extern void *kvmppc_pin_guest_page(struct kvm *kvm, unsigned long addr,
170 unsigned long *nb_ret);
c35635ef
PM		 171extern void kvmppc_unpin_guest_page(struct kvm *kvm, void *addr,
172 unsigned long gpa, bool dirty);
c77162de
PM		 173extern long kvmppc_virtmode_h_enter(struct kvm_vcpu *vcpu, unsigned long flags,
174 long pte_index, unsigned long pteh, unsigned long ptel);
7ed661bf
PM		 175extern long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags,
176 long pte_index, unsigned long pteh, unsigned long ptel,
177 pgd_t *pgdir, bool realmode, unsigned long *idx_ret);
6b445ad4
PM		 178extern long kvmppc_do_h_remove(struct kvm *kvm, unsigned long flags,
179 unsigned long pte_index, unsigned long avpn,
180 unsigned long *hpret);
82ed3616 181extern long kvmppc_hv_get_dirty_log(struct kvm *kvm,
dfe49dbd 182 struct kvm_memory_slot *memslot, unsigned long *map);
a0144e2a
PM		 183extern void kvmppc_update_lpcr(struct kvm *kvm, unsigned long lpcr,
184 unsigned long mask);
8e6afa36 185extern void kvmppc_set_fscr(struct kvm_vcpu *vcpu, u64 fscr);
4e342025 186
02143947 187extern void kvmppc_entry_trampoline(void);
de56a948 188extern void kvmppc_hv_entry_trampoline(void);
ca7f4203
AG		 189extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst);
190extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst);
0254f074 191extern int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd);
699a0ea0 192extern void kvmppc_pr_init_default_hcalls(struct kvm *kvm);
ae2113a4
PM		 193extern int kvmppc_hcall_impl_pr(unsigned long cmd);
194extern int kvmppc_hcall_impl_hv_realmode(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
5deb8e7a 274static inline u64 kvmppc_get_msr(struct kvm_vcpu *vcpu);
73601775 275static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu)
c7f38f46 276{
5deb8e7a 277 return (kvmppc_get_msr(vcpu) & MSR_LE) != (MSR_KERNEL & MSR_LE);
73601775 278}
c7f38f46 279
c7f38f46
AG		 280static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
281{
a2d56020
PM		 282 return vcpu->arch.fault_dar;
283}
284
e59d24e6
GK		 285static inline bool is_kvmppc_resume_guest(int r)
286{
287 return (r == RESUME_GUEST || r == RESUME_GUEST_NV);
288}
289
c12fb43c
AG		 290static inline bool is_kvmppc_hv_enabled(struct kvm *kvm);
291static inline bool kvmppc_supports_magic_page(struct kvm_vcpu *vcpu)
292{
293 /* Only PR KVM supports the magic page */
294 return !is_kvmppc_hv_enabled(vcpu->kvm);
295}
296
ad0a048b
AG		 297/* Magic register values loaded into r3 and r4 before the 'sc' assembly
298 * instruction for the OSI hypercalls */
299#define OSI_SC_MAGIC_R3 0x113724FA
300#define OSI_SC_MAGIC_R4 0x77810F9B
301
4e342025 302#define INS_DCBZ 0x7c0007ec
8c32a2ea
BB		 303/* TO = 31 for unconditional trap */
304#define INS_TW 0x7fe00008
4e342025 305
043cc4d7
SW		 306/* LPIDs we support with this build -- runtime limit may be lower */
307#define KVMPPC_NR_LPIDS (LPID_RSVD + 1)
308
c01e3f66
AG		 309#define SPLIT_HACK_MASK 0xff000000
310#define SPLIT_HACK_OFFS 0xfb000000
311
4e342025 312#endif /* __ASM_KVM_BOOK3S_H__ */
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