tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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>
25#include <asm/kvm_book3s_asm.h>
26
27struct kvmppc_slb {
28 u64 esid;
29 u64 vsid;
30 u64 orige;
31 u64 origv;
32 bool valid : 1;
33 bool Ks : 1;
34 bool Kp : 1;
35 bool nx : 1;
36 bool large : 1; /* PTEs are 16MB */
37 bool tb : 1; /* 1TB segment */
38 bool class : 1;
39};
40
41struct kvmppc_bat {
42 u64 raw;
43 u32 bepi;
44 u32 bepi_mask;
45 u32 brpn;
46 u8 wimg;
47 u8 pp;
48 bool vs : 1;
49 bool vp : 1;
50};
51
52struct kvmppc_sid_map {
53 u64 guest_vsid;
54 u64 guest_esid;
55 u64 host_vsid;
56 bool valid : 1;
57};
58
59#define SID_MAP_BITS 9
60#define SID_MAP_NUM (1 << SID_MAP_BITS)
61#define SID_MAP_MASK (SID_MAP_NUM - 1)
62
63#ifdef CONFIG_PPC_BOOK3S_64
64#define SID_CONTEXTS 1
65#else
66#define SID_CONTEXTS 128
67#define VSID_POOL_SIZE (SID_CONTEXTS * 16)
68#endif
69
70struct kvmppc_vcpu_book3s {
71 struct kvm_vcpu vcpu;
72 struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
73 struct kvmppc_sid_map sid_map[SID_MAP_NUM];
74 struct kvmppc_slb slb[64];
75 struct {
76 u64 esid;
77 u64 vsid;
78 } slb_shadow[64];
79 u8 slb_shadow_max;
80 struct kvmppc_bat ibat[8];
81 struct kvmppc_bat dbat[8];
82 u64 hid[6];
83 u64 gqr[8];
84 int slb_nr;
85 u64 sdr1;
86 u64 hior;
87 u64 msr_mask;
88 u64 vsid_next;
89#ifdef CONFIG_PPC_BOOK3S_32
90 u32 vsid_pool[VSID_POOL_SIZE];
91#else
92 u64 vsid_first;
93 u64 vsid_max;
94#endif
95 int context_id[SID_CONTEXTS];
96 ulong prog_flags; /* flags to inject when giving a 700 trap */
97};
98
99#define CONTEXT_HOST 0
100#define CONTEXT_GUEST 1
101#define CONTEXT_GUEST_END 2
102
103#define VSID_REAL 0x1fffffffffc00000ULL
104#define VSID_BAT 0x1fffffffffb00000ULL
105#define VSID_REAL_DR 0x2000000000000000ULL
106#define VSID_REAL_IR 0x4000000000000000ULL
107#define VSID_PR 0x8000000000000000ULL
108
109extern void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong ea, ulong ea_mask);
110extern void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 vp, u64 vp_mask);
111extern void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end);
112extern void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 new_msr);
113extern void kvmppc_mmu_book3s_64_init(struct kvm_vcpu *vcpu);
114extern void kvmppc_mmu_book3s_32_init(struct kvm_vcpu *vcpu);
115extern int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte);
116extern int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr);
117extern void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu);
118
119extern void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
120extern struct hpte_cache *kvmppc_mmu_hpte_cache_next(struct kvm_vcpu *vcpu);
121extern void kvmppc_mmu_hpte_destroy(struct kvm_vcpu *vcpu);
122extern int kvmppc_mmu_hpte_init(struct kvm_vcpu *vcpu);
123extern void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
124extern int kvmppc_mmu_hpte_sysinit(void);
125extern void kvmppc_mmu_hpte_sysexit(void);
126
127extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data);
128extern int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data);
129extern void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec);
130extern void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat,
131 bool upper, u32 val);
132extern void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr);
133extern int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu);
134extern pfn_t kvmppc_gfn_to_pfn(struct kvm_vcpu *vcpu, gfn_t gfn);
135
136extern ulong kvmppc_trampoline_lowmem;
137extern ulong kvmppc_trampoline_enter;
138extern void kvmppc_rmcall(ulong srr0, ulong srr1);
139extern void kvmppc_load_up_fpu(void);
140extern void kvmppc_load_up_altivec(void);
141extern void kvmppc_load_up_vsx(void);
142extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst);
143extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst);
144
145static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu)
146{
147 return container_of(vcpu, struct kvmppc_vcpu_book3s, vcpu);
148}
149
150static inline ulong dsisr(void)
151{
152 ulong r;
153 asm ( "mfdsisr %0 " : "=r" (r) );
154 return r;
155}
156
157extern void kvm_return_point(void);
158static inline struct kvmppc_book3s_shadow_vcpu *to_svcpu(struct kvm_vcpu *vcpu);
159
160static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
161{
162 if ( num < 14 ) {
163 to_svcpu(vcpu)->gpr[num] = val;
164 to_book3s(vcpu)->shadow_vcpu->gpr[num] = val;
165 } else
166 vcpu->arch.gpr[num] = val;
167}
168
169static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
170{
171 if ( num < 14 )
172 return to_svcpu(vcpu)->gpr[num];
173 else
174 return vcpu->arch.gpr[num];
175}
176
177static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
178{
179 to_svcpu(vcpu)->cr = val;
180 to_book3s(vcpu)->shadow_vcpu->cr = val;
181}
182
183static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
184{
185 return to_svcpu(vcpu)->cr;
186}
187
188static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val)
189{
190 to_svcpu(vcpu)->xer = val;
191 to_book3s(vcpu)->shadow_vcpu->xer = val;
192}
193
194static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu)
195{
196 return to_svcpu(vcpu)->xer;
197}
198
199static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
200{
201 to_svcpu(vcpu)->ctr = val;
202}
203
204static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
205{
206 return to_svcpu(vcpu)->ctr;
207}
208
209static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
210{
211 to_svcpu(vcpu)->lr = val;
212}
213
214static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
215{
216 return to_svcpu(vcpu)->lr;
217}
218
219static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
220{
221 to_svcpu(vcpu)->pc = val;
222}
223
224static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
225{
226 return to_svcpu(vcpu)->pc;
227}
228
229static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
230{
231 ulong pc = kvmppc_get_pc(vcpu);
232 struct kvmppc_book3s_shadow_vcpu *svcpu = to_svcpu(vcpu);
233
234 /* Load the instruction manually if it failed to do so in the
235 * exit path */
236 if (svcpu->last_inst == KVM_INST_FETCH_FAILED)
237 kvmppc_ld(vcpu, &pc, sizeof(u32), &svcpu->last_inst, false);
238
239 return svcpu->last_inst;
240}
241
242static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
243{
244 return to_svcpu(vcpu)->fault_dar;
245}
246
247/* Magic register values loaded into r3 and r4 before the 'sc' assembly
248 * instruction for the OSI hypercalls */
249#define OSI_SC_MAGIC_R3 0x113724FA
250#define OSI_SC_MAGIC_R4 0x77810F9B
251
252#define INS_DCBZ 0x7c0007ec
253
254/* Also add subarch specific defines */
255
256#ifdef CONFIG_PPC_BOOK3S_32
257#include <asm/kvm_book3s_32.h>
258#else
259#include <asm/kvm_book3s_64.h>
260#endif
261
262#endif /* __ASM_KVM_BOOK3S_H__ */