summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/include/asm/kvm_book3s.h
blob: 6f74d93725a0f3327e4d3c6088828113b62079f4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License, version 2, as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 * Copyright SUSE Linux Products GmbH 2009
 *
 * Authors: Alexander Graf <agraf@suse.de>
 */

#ifndef __ASM_KVM_BOOK3S_H__
#define __ASM_KVM_BOOK3S_H__

#include <linux/types.h>
#include <linux/kvm_host.h>
#include <asm/kvm_book3s_asm.h>

struct kvmppc_slb {
	u64 esid;
	u64 vsid;
	u64 orige;
	u64 origv;
	bool valid	: 1;
	bool Ks		: 1;
	bool Kp		: 1;
	bool nx		: 1;
	bool large	: 1;	/* PTEs are 16MB */
	bool tb		: 1;	/* 1TB segment */
	bool class	: 1;
};

struct kvmppc_sr {
	u32 raw;
	u32 vsid;
	bool Ks		: 1;
	bool Kp		: 1;
	bool nx		: 1;
	bool valid	: 1;
};

struct kvmppc_bat {
	u64 raw;
	u32 bepi;
	u32 bepi_mask;
	u32 brpn;
	u8 wimg;
	u8 pp;
	bool vs		: 1;
	bool vp		: 1;
};

struct kvmppc_sid_map {
	u64 guest_vsid;
	u64 guest_esid;
	u64 host_vsid;
	bool valid	: 1;
};

#define SID_MAP_BITS    9
#define SID_MAP_NUM     (1 << SID_MAP_BITS)
#define SID_MAP_MASK    (SID_MAP_NUM - 1)

struct kvmppc_vcpu_book3s {
	struct kvm_vcpu vcpu;
	struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
	struct kvmppc_sid_map sid_map[SID_MAP_NUM];
	struct kvmppc_slb slb[64];
	struct {
		u64 esid;
		u64 vsid;
	} slb_shadow[64];
	u8 slb_shadow_max;
	struct kvmppc_sr sr[16];
	struct kvmppc_bat ibat[8];
	struct kvmppc_bat dbat[8];
	u64 hid[6];
	u64 gqr[8];
	int slb_nr;
	u32 dsisr;
	u64 sdr1;
	u64 hior;
	u64 msr_mask;
	u64 vsid_first;
	u64 vsid_next;
	u64 vsid_max;
	int context_id;
	ulong prog_flags; /* flags to inject when giving a 700 trap */
};

#define CONTEXT_HOST		0
#define CONTEXT_GUEST		1
#define CONTEXT_GUEST_END	2

#define VSID_REAL	0x1fffffffffc00000ULL
#define VSID_BAT	0x1fffffffffb00000ULL
#define VSID_REAL_DR	0x2000000000000000ULL
#define VSID_REAL_IR	0x4000000000000000ULL
#define VSID_PR		0x8000000000000000ULL

extern void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong ea, ulong ea_mask);
extern void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 vp, u64 vp_mask);
extern void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end);
extern void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 new_msr);
extern void kvmppc_mmu_book3s_64_init(struct kvm_vcpu *vcpu);
extern void kvmppc_mmu_book3s_32_init(struct kvm_vcpu *vcpu);
extern int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte);
extern int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr);
extern void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu);
extern struct kvmppc_pte *kvmppc_mmu_find_pte(struct kvm_vcpu *vcpu, u64 ea, bool data);
extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data);
extern int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data);
extern void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec);
extern void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat,
			   bool upper, u32 val);
extern void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr);
extern int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu);

extern u32 kvmppc_trampoline_lowmem;
extern u32 kvmppc_trampoline_enter;
extern void kvmppc_rmcall(ulong srr0, ulong srr1);
extern void kvmppc_load_up_fpu(void);
extern void kvmppc_load_up_altivec(void);
extern void kvmppc_load_up_vsx(void);
extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst);
extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst);

static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu)
{
	return container_of(vcpu, struct kvmppc_vcpu_book3s, vcpu);
}

static inline ulong dsisr(void)
{
	ulong r;
	asm ( "mfdsisr %0 " : "=r" (r) );
	return r;
}

extern void kvm_return_point(void);
static inline struct kvmppc_book3s_shadow_vcpu *to_svcpu(struct kvm_vcpu *vcpu);

static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
{
	if ( num < 14 ) {
		to_svcpu(vcpu)->gpr[num] = val;
		to_book3s(vcpu)->shadow_vcpu->gpr[num] = val;
	} else
		vcpu->arch.gpr[num] = val;
}

static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
{
	if ( num < 14 )
		return to_svcpu(vcpu)->gpr[num];
	else
		return vcpu->arch.gpr[num];
}

static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
{
	to_svcpu(vcpu)->cr = val;
	to_book3s(vcpu)->shadow_vcpu->cr = val;
}

static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
{
	return to_svcpu(vcpu)->cr;
}

static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val)
{
	to_svcpu(vcpu)->xer = val;
	to_book3s(vcpu)->shadow_vcpu->xer = val;
}

static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu)
{
	return to_svcpu(vcpu)->xer;
}

static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
{
	to_svcpu(vcpu)->ctr = val;
}

static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
{
	return to_svcpu(vcpu)->ctr;
}

static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
{
	to_svcpu(vcpu)->lr = val;
}

static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
{
	return to_svcpu(vcpu)->lr;
}

static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
{
	to_svcpu(vcpu)->pc = val;
}

static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
{
	return to_svcpu(vcpu)->pc;
}

static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
{
	ulong pc = kvmppc_get_pc(vcpu);
	struct kvmppc_book3s_shadow_vcpu *svcpu = to_svcpu(vcpu);

	/* Load the instruction manually if it failed to do so in the
	 * exit path */
	if (svcpu->last_inst == KVM_INST_FETCH_FAILED)
		kvmppc_ld(vcpu, &pc, sizeof(u32), &svcpu->last_inst, false);

	return svcpu->last_inst;
}

static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
{
	return to_svcpu(vcpu)->fault_dar;
}

/* Magic register values loaded into r3 and r4 before the 'sc' assembly
 * instruction for the OSI hypercalls */
#define OSI_SC_MAGIC_R3			0x113724FA
#define OSI_SC_MAGIC_R4			0x77810F9B

#define INS_DCBZ			0x7c0007ec

/* Also add subarch specific defines */

#ifdef CONFIG_PPC_BOOK3S_32
#include <asm/kvm_book3s_32.h>
#else
#include <asm/kvm_book3s_64.h>
#endif

#endif /* __ASM_KVM_BOOK3S_H__ */