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
|
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2020-2023 Loongson Technology Corporation Limited
*/
#ifndef __ASM_LOONGARCH_KVM_CSR_H__
#define __ASM_LOONGARCH_KVM_CSR_H__
#include <linux/uaccess.h>
#include <linux/kvm_host.h>
#include <asm/loongarch.h>
#include <asm/kvm_vcpu.h>
#define gcsr_read(csr) \
({ \
register unsigned long __v; \
__asm__ __volatile__( \
" gcsrrd %[val], %[reg]\n\t" \
: [val] "=r" (__v) \
: [reg] "i" (csr) \
: "memory"); \
__v; \
})
#define gcsr_write(v, csr) \
({ \
register unsigned long __v = v; \
__asm__ __volatile__ ( \
" gcsrwr %[val], %[reg]\n\t" \
: [val] "+r" (__v) \
: [reg] "i" (csr) \
: "memory"); \
})
#define gcsr_xchg(v, m, csr) \
({ \
register unsigned long __v = v; \
__asm__ __volatile__( \
" gcsrxchg %[val], %[mask], %[reg]\n\t" \
: [val] "+r" (__v) \
: [mask] "r" (m), [reg] "i" (csr) \
: "memory"); \
__v; \
})
/* Guest CSRS read and write */
#define read_gcsr_crmd() gcsr_read(LOONGARCH_CSR_CRMD)
#define write_gcsr_crmd(val) gcsr_write(val, LOONGARCH_CSR_CRMD)
#define read_gcsr_prmd() gcsr_read(LOONGARCH_CSR_PRMD)
#define write_gcsr_prmd(val) gcsr_write(val, LOONGARCH_CSR_PRMD)
#define read_gcsr_euen() gcsr_read(LOONGARCH_CSR_EUEN)
#define write_gcsr_euen(val) gcsr_write(val, LOONGARCH_CSR_EUEN)
#define read_gcsr_misc() gcsr_read(LOONGARCH_CSR_MISC)
#define write_gcsr_misc(val) gcsr_write(val, LOONGARCH_CSR_MISC)
#define read_gcsr_ecfg() gcsr_read(LOONGARCH_CSR_ECFG)
#define write_gcsr_ecfg(val) gcsr_write(val, LOONGARCH_CSR_ECFG)
#define read_gcsr_estat() gcsr_read(LOONGARCH_CSR_ESTAT)
#define write_gcsr_estat(val) gcsr_write(val, LOONGARCH_CSR_ESTAT)
#define read_gcsr_era() gcsr_read(LOONGARCH_CSR_ERA)
#define write_gcsr_era(val) gcsr_write(val, LOONGARCH_CSR_ERA)
#define read_gcsr_badv() gcsr_read(LOONGARCH_CSR_BADV)
#define write_gcsr_badv(val) gcsr_write(val, LOONGARCH_CSR_BADV)
#define read_gcsr_badi() gcsr_read(LOONGARCH_CSR_BADI)
#define write_gcsr_badi(val) gcsr_write(val, LOONGARCH_CSR_BADI)
#define read_gcsr_eentry() gcsr_read(LOONGARCH_CSR_EENTRY)
#define write_gcsr_eentry(val) gcsr_write(val, LOONGARCH_CSR_EENTRY)
#define read_gcsr_asid() gcsr_read(LOONGARCH_CSR_ASID)
#define write_gcsr_asid(val) gcsr_write(val, LOONGARCH_CSR_ASID)
#define read_gcsr_pgdl() gcsr_read(LOONGARCH_CSR_PGDL)
#define write_gcsr_pgdl(val) gcsr_write(val, LOONGARCH_CSR_PGDL)
#define read_gcsr_pgdh() gcsr_read(LOONGARCH_CSR_PGDH)
#define write_gcsr_pgdh(val) gcsr_write(val, LOONGARCH_CSR_PGDH)
#define write_gcsr_pgd(val) gcsr_write(val, LOONGARCH_CSR_PGD)
#define read_gcsr_pgd() gcsr_read(LOONGARCH_CSR_PGD)
#define read_gcsr_pwctl0() gcsr_read(LOONGARCH_CSR_PWCTL0)
#define write_gcsr_pwctl0(val) gcsr_write(val, LOONGARCH_CSR_PWCTL0)
#define read_gcsr_pwctl1() gcsr_read(LOONGARCH_CSR_PWCTL1)
#define write_gcsr_pwctl1(val) gcsr_write(val, LOONGARCH_CSR_PWCTL1)
#define read_gcsr_stlbpgsize() gcsr_read(LOONGARCH_CSR_STLBPGSIZE)
#define write_gcsr_stlbpgsize(val) gcsr_write(val, LOONGARCH_CSR_STLBPGSIZE)
#define read_gcsr_rvacfg() gcsr_read(LOONGARCH_CSR_RVACFG)
#define write_gcsr_rvacfg(val) gcsr_write(val, LOONGARCH_CSR_RVACFG)
#define read_gcsr_cpuid() gcsr_read(LOONGARCH_CSR_CPUID)
#define write_gcsr_cpuid(val) gcsr_write(val, LOONGARCH_CSR_CPUID)
#define read_gcsr_prcfg1() gcsr_read(LOONGARCH_CSR_PRCFG1)
#define write_gcsr_prcfg1(val) gcsr_write(val, LOONGARCH_CSR_PRCFG1)
#define read_gcsr_prcfg2() gcsr_read(LOONGARCH_CSR_PRCFG2)
#define write_gcsr_prcfg2(val) gcsr_write(val, LOONGARCH_CSR_PRCFG2)
#define read_gcsr_prcfg3() gcsr_read(LOONGARCH_CSR_PRCFG3)
#define write_gcsr_prcfg3(val) gcsr_write(val, LOONGARCH_CSR_PRCFG3)
#define read_gcsr_kscratch0() gcsr_read(LOONGARCH_CSR_KS0)
#define write_gcsr_kscratch0(val) gcsr_write(val, LOONGARCH_CSR_KS0)
#define read_gcsr_kscratch1() gcsr_read(LOONGARCH_CSR_KS1)
#define write_gcsr_kscratch1(val) gcsr_write(val, LOONGARCH_CSR_KS1)
#define read_gcsr_kscratch2() gcsr_read(LOONGARCH_CSR_KS2)
#define write_gcsr_kscratch2(val) gcsr_write(val, LOONGARCH_CSR_KS2)
#define read_gcsr_kscratch3() gcsr_read(LOONGARCH_CSR_KS3)
#define write_gcsr_kscratch3(val) gcsr_write(val, LOONGARCH_CSR_KS3)
#define read_gcsr_kscratch4() gcsr_read(LOONGARCH_CSR_KS4)
#define write_gcsr_kscratch4(val) gcsr_write(val, LOONGARCH_CSR_KS4)
#define read_gcsr_kscratch5() gcsr_read(LOONGARCH_CSR_KS5)
#define write_gcsr_kscratch5(val) gcsr_write(val, LOONGARCH_CSR_KS5)
#define read_gcsr_kscratch6() gcsr_read(LOONGARCH_CSR_KS6)
#define write_gcsr_kscratch6(val) gcsr_write(val, LOONGARCH_CSR_KS6)
#define read_gcsr_kscratch7() gcsr_read(LOONGARCH_CSR_KS7)
#define write_gcsr_kscratch7(val) gcsr_write(val, LOONGARCH_CSR_KS7)
#define read_gcsr_timerid() gcsr_read(LOONGARCH_CSR_TMID)
#define write_gcsr_timerid(val) gcsr_write(val, LOONGARCH_CSR_TMID)
#define read_gcsr_timercfg() gcsr_read(LOONGARCH_CSR_TCFG)
#define write_gcsr_timercfg(val) gcsr_write(val, LOONGARCH_CSR_TCFG)
#define read_gcsr_timertick() gcsr_read(LOONGARCH_CSR_TVAL)
#define write_gcsr_timertick(val) gcsr_write(val, LOONGARCH_CSR_TVAL)
#define read_gcsr_timeroffset() gcsr_read(LOONGARCH_CSR_CNTC)
#define write_gcsr_timeroffset(val) gcsr_write(val, LOONGARCH_CSR_CNTC)
#define read_gcsr_llbctl() gcsr_read(LOONGARCH_CSR_LLBCTL)
#define write_gcsr_llbctl(val) gcsr_write(val, LOONGARCH_CSR_LLBCTL)
#define read_gcsr_tlbidx() gcsr_read(LOONGARCH_CSR_TLBIDX)
#define write_gcsr_tlbidx(val) gcsr_write(val, LOONGARCH_CSR_TLBIDX)
#define read_gcsr_tlbrentry() gcsr_read(LOONGARCH_CSR_TLBRENTRY)
#define write_gcsr_tlbrentry(val) gcsr_write(val, LOONGARCH_CSR_TLBRENTRY)
#define read_gcsr_tlbrbadv() gcsr_read(LOONGARCH_CSR_TLBRBADV)
#define write_gcsr_tlbrbadv(val) gcsr_write(val, LOONGARCH_CSR_TLBRBADV)
#define read_gcsr_tlbrera() gcsr_read(LOONGARCH_CSR_TLBRERA)
#define write_gcsr_tlbrera(val) gcsr_write(val, LOONGARCH_CSR_TLBRERA)
#define read_gcsr_tlbrsave() gcsr_read(LOONGARCH_CSR_TLBRSAVE)
#define write_gcsr_tlbrsave(val) gcsr_write(val, LOONGARCH_CSR_TLBRSAVE)
#define read_gcsr_tlbrelo0() gcsr_read(LOONGARCH_CSR_TLBRELO0)
#define write_gcsr_tlbrelo0(val) gcsr_write(val, LOONGARCH_CSR_TLBRELO0)
#define read_gcsr_tlbrelo1() gcsr_read(LOONGARCH_CSR_TLBRELO1)
#define write_gcsr_tlbrelo1(val) gcsr_write(val, LOONGARCH_CSR_TLBRELO1)
#define read_gcsr_tlbrehi() gcsr_read(LOONGARCH_CSR_TLBREHI)
#define write_gcsr_tlbrehi(val) gcsr_write(val, LOONGARCH_CSR_TLBREHI)
#define read_gcsr_tlbrprmd() gcsr_read(LOONGARCH_CSR_TLBRPRMD)
#define write_gcsr_tlbrprmd(val) gcsr_write(val, LOONGARCH_CSR_TLBRPRMD)
#define read_gcsr_directwin0() gcsr_read(LOONGARCH_CSR_DMWIN0)
#define write_gcsr_directwin0(val) gcsr_write(val, LOONGARCH_CSR_DMWIN0)
#define read_gcsr_directwin1() gcsr_read(LOONGARCH_CSR_DMWIN1)
#define write_gcsr_directwin1(val) gcsr_write(val, LOONGARCH_CSR_DMWIN1)
#define read_gcsr_directwin2() gcsr_read(LOONGARCH_CSR_DMWIN2)
#define write_gcsr_directwin2(val) gcsr_write(val, LOONGARCH_CSR_DMWIN2)
#define read_gcsr_directwin3() gcsr_read(LOONGARCH_CSR_DMWIN3)
#define write_gcsr_directwin3(val) gcsr_write(val, LOONGARCH_CSR_DMWIN3)
/* Guest related CSRs */
#define read_csr_gtlbc() csr_read64(LOONGARCH_CSR_GTLBC)
#define write_csr_gtlbc(val) csr_write64(val, LOONGARCH_CSR_GTLBC)
#define read_csr_trgp() csr_read64(LOONGARCH_CSR_TRGP)
#define read_csr_gcfg() csr_read64(LOONGARCH_CSR_GCFG)
#define write_csr_gcfg(val) csr_write64(val, LOONGARCH_CSR_GCFG)
#define read_csr_gstat() csr_read64(LOONGARCH_CSR_GSTAT)
#define write_csr_gstat(val) csr_write64(val, LOONGARCH_CSR_GSTAT)
#define read_csr_gintc() csr_read64(LOONGARCH_CSR_GINTC)
#define write_csr_gintc(val) csr_write64(val, LOONGARCH_CSR_GINTC)
#define read_csr_gcntc() csr_read64(LOONGARCH_CSR_GCNTC)
#define write_csr_gcntc(val) csr_write64(val, LOONGARCH_CSR_GCNTC)
#define __BUILD_GCSR_OP(name) __BUILD_CSR_COMMON(gcsr_##name)
__BUILD_CSR_OP(gcfg)
__BUILD_CSR_OP(gstat)
__BUILD_CSR_OP(gtlbc)
__BUILD_CSR_OP(gintc)
__BUILD_GCSR_OP(llbctl)
__BUILD_GCSR_OP(tlbidx)
#define set_gcsr_estat(val) \
gcsr_xchg(val, val, LOONGARCH_CSR_ESTAT)
#define clear_gcsr_estat(val) \
gcsr_xchg(~(val), val, LOONGARCH_CSR_ESTAT)
#define kvm_read_hw_gcsr(id) gcsr_read(id)
#define kvm_write_hw_gcsr(id, val) gcsr_write(val, id)
#define kvm_save_hw_gcsr(csr, gid) (csr->csrs[gid] = gcsr_read(gid))
#define kvm_restore_hw_gcsr(csr, gid) (gcsr_write(csr->csrs[gid], gid))
int kvm_emu_iocsr(larch_inst inst, struct kvm_run *run, struct kvm_vcpu *vcpu);
static __always_inline unsigned long kvm_read_sw_gcsr(struct loongarch_csrs *csr, int gid)
{
return csr->csrs[gid];
}
static __always_inline void kvm_write_sw_gcsr(struct loongarch_csrs *csr, int gid, unsigned long val)
{
csr->csrs[gid] = val;
}
static __always_inline void kvm_set_sw_gcsr(struct loongarch_csrs *csr,
int gid, unsigned long val)
{
csr->csrs[gid] |= val;
}
static __always_inline void kvm_change_sw_gcsr(struct loongarch_csrs *csr,
int gid, unsigned long mask, unsigned long val)
{
unsigned long _mask = mask;
csr->csrs[gid] &= ~_mask;
csr->csrs[gid] |= val & _mask;
}
#endif /* __ASM_LOONGARCH_KVM_CSR_H__ */
|
