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KVM: PPC: Use kvm_read_guest in kvmppc_ld
[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;
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);
4e342025 185
02143947 186extern void kvmppc_entry_trampoline(void);
de56a948 187extern void kvmppc_hv_entry_trampoline(void);
ca7f4203
AG		 188extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst);
189extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst);
0254f074 190extern int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd);
699a0ea0 191extern void kvmppc_pr_init_default_hcalls(struct kvm *kvm);
ae2113a4
PM		 192extern int kvmppc_hcall_impl_pr(unsigned long cmd);
193extern int kvmppc_hcall_impl_hv_realmode(unsigned long cmd);
c9dad7f9
AG		 194extern void kvmppc_copy_to_svcpu(struct kvmppc_book3s_shadow_vcpu *svcpu,
195 struct kvm_vcpu *vcpu);
196extern void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu,
197 struct kvmppc_book3s_shadow_vcpu *svcpu);
4e342025
AG		 198
199static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu)
200{
3ff95502 201 return vcpu->arch.book3s;
4e342025
AG		 202}
203
de56a948
PM		 204/* Also add subarch specific defines */
205
206#ifdef CONFIG_KVM_BOOK3S_32_HANDLER
207#include <asm/kvm_book3s_32.h>
208#endif
209#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
210#include <asm/kvm_book3s_64.h>
211#endif
212
c7f38f46
AG		 213static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
214{
a2d56020 215 vcpu->arch.gpr[num] = val;
c7f38f46
AG		 216}
217
218static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
219{
a2d56020 220 return vcpu->arch.gpr[num];
c7f38f46
AG		 221}
222
223static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
224{
a2d56020 225 vcpu->arch.cr = val;
c7f38f46
AG		 226}
227
228static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
229{
a2d56020 230 return vcpu->arch.cr;
c7f38f46
AG		 231}
232
233static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val)
234{
a2d56020 235 vcpu->arch.xer = val;
c7f38f46
AG		 236}
237
238static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu)
239{
a2d56020 240 return vcpu->arch.xer;
c7f38f46
AG		 241}
242
243static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
244{
a2d56020 245 vcpu->arch.ctr = val;
c7f38f46
AG		 246}
247
248static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
249{
a2d56020 250 return vcpu->arch.ctr;
c7f38f46
AG		 251}
252
253static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
254{
a2d56020 255 vcpu->arch.lr = val;
c7f38f46
AG		 256}
257
258static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
259{
a2d56020 260 return vcpu->arch.lr;
c7f38f46
AG		 261}
262
263static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
264{
a2d56020 265 vcpu->arch.pc = val;
c7f38f46
AG		 266}
267
268static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
269{
a2d56020 270 return vcpu->arch.pc;
c7f38f46
AG		 271}
272
5deb8e7a 273static inline u64 kvmppc_get_msr(struct kvm_vcpu *vcpu);
73601775 274static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu)
c7f38f46 275{
5deb8e7a 276 return (kvmppc_get_msr(vcpu) & MSR_LE) != (MSR_KERNEL & MSR_LE);
73601775 277}
c7f38f46 278
c7f38f46
AG		 279static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
280{
a2d56020
PM		 281 return vcpu->arch.fault_dar;
282}
283
e59d24e6
GK		 284static inline bool is_kvmppc_resume_guest(int r)
285{
286 return (r == RESUME_GUEST || r == RESUME_GUEST_NV);
287}
288
ad0a048b
AG		 289/* Magic register values loaded into r3 and r4 before the 'sc' assembly
290 * instruction for the OSI hypercalls */
291#define OSI_SC_MAGIC_R3 0x113724FA
292#define OSI_SC_MAGIC_R4 0x77810F9B
293
4e342025 294#define INS_DCBZ 0x7c0007ec
8c32a2ea
BB		 295/* TO = 31 for unconditional trap */
296#define INS_TW 0x7fe00008
4e342025 297
043cc4d7
SW		 298/* LPIDs we support with this build -- runtime limit may be lower */
299#define KVMPPC_NR_LPIDS (LPID_RSVD + 1)
300
c01e3f66
AG		 301#define SPLIT_HACK_MASK 0xff000000
302#define SPLIT_HACK_OFFS 0xfb000000
303
4e342025 304#endif /* __ASM_KVM_BOOK3S_H__ */
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