vfio/pci: Add IGD documentation
[qemu.git] / target-s390x / machine.c
1 /*
2 * S390x machine definitions and functions
3 *
4 * Copyright IBM Corp. 2014
5 *
6 * Authors:
7 * Thomas Huth <thuth@linux.vnet.ibm.com>
8 * Christian Borntraeger <borntraeger@de.ibm.com>
9 * Jason J. Herne <jjherne@us.ibm.com>
10 *
11 * This work is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published
13 * by the Free Software Foundation; either version 2 of the License,
14 * or (at your option) any later version.
15 */
16
17 #include "qemu/osdep.h"
18 #include "hw/hw.h"
19 #include "cpu.h"
20 #include "sysemu/kvm.h"
21
22 static int cpu_post_load(void *opaque, int version_id)
23 {
24 S390CPU *cpu = opaque;
25
26 /*
27 * As the cpu state is pushed to kvm via kvm_set_mp_state rather
28 * than via cpu_synchronize_state, we need update kvm here.
29 */
30 if (kvm_enabled()) {
31 kvm_s390_set_cpu_state(cpu, cpu->env.cpu_state);
32 return kvm_s390_vcpu_interrupt_post_load(cpu);
33 }
34
35 return 0;
36 }
37 static void cpu_pre_save(void *opaque)
38 {
39 S390CPU *cpu = opaque;
40
41 if (kvm_enabled()) {
42 kvm_s390_vcpu_interrupt_pre_save(cpu);
43 }
44 }
45
46 static inline bool fpu_needed(void *opaque)
47 {
48 /* This looks odd, but we might want to NOT transfer fprs in the future */
49 return true;
50 }
51
52 static const VMStateDescription vmstate_fpu = {
53 .name = "cpu/fpu",
54 .version_id = 1,
55 .minimum_version_id = 1,
56 .needed = fpu_needed,
57 .fields = (VMStateField[]) {
58 VMSTATE_UINT64(env.vregs[0][0].ll, S390CPU),
59 VMSTATE_UINT64(env.vregs[1][0].ll, S390CPU),
60 VMSTATE_UINT64(env.vregs[2][0].ll, S390CPU),
61 VMSTATE_UINT64(env.vregs[3][0].ll, S390CPU),
62 VMSTATE_UINT64(env.vregs[4][0].ll, S390CPU),
63 VMSTATE_UINT64(env.vregs[5][0].ll, S390CPU),
64 VMSTATE_UINT64(env.vregs[6][0].ll, S390CPU),
65 VMSTATE_UINT64(env.vregs[7][0].ll, S390CPU),
66 VMSTATE_UINT64(env.vregs[8][0].ll, S390CPU),
67 VMSTATE_UINT64(env.vregs[9][0].ll, S390CPU),
68 VMSTATE_UINT64(env.vregs[10][0].ll, S390CPU),
69 VMSTATE_UINT64(env.vregs[11][0].ll, S390CPU),
70 VMSTATE_UINT64(env.vregs[12][0].ll, S390CPU),
71 VMSTATE_UINT64(env.vregs[13][0].ll, S390CPU),
72 VMSTATE_UINT64(env.vregs[14][0].ll, S390CPU),
73 VMSTATE_UINT64(env.vregs[15][0].ll, S390CPU),
74 VMSTATE_UINT32(env.fpc, S390CPU),
75 VMSTATE_END_OF_LIST()
76 }
77 };
78
79 static bool vregs_needed(void *opaque)
80 {
81 #ifdef CONFIG_KVM
82 if (kvm_enabled()) {
83 return kvm_check_extension(kvm_state, KVM_CAP_S390_VECTOR_REGISTERS);
84 }
85 #endif
86 return 0;
87 }
88
89 static const VMStateDescription vmstate_vregs = {
90 .name = "cpu/vregs",
91 .version_id = 1,
92 .minimum_version_id = 1,
93 .needed = vregs_needed,
94 .fields = (VMStateField[]) {
95 /* vregs[0][0] -> vregs[15][0] and fregs are overlays */
96 VMSTATE_UINT64(env.vregs[16][0].ll, S390CPU),
97 VMSTATE_UINT64(env.vregs[17][0].ll, S390CPU),
98 VMSTATE_UINT64(env.vregs[18][0].ll, S390CPU),
99 VMSTATE_UINT64(env.vregs[19][0].ll, S390CPU),
100 VMSTATE_UINT64(env.vregs[20][0].ll, S390CPU),
101 VMSTATE_UINT64(env.vregs[21][0].ll, S390CPU),
102 VMSTATE_UINT64(env.vregs[22][0].ll, S390CPU),
103 VMSTATE_UINT64(env.vregs[23][0].ll, S390CPU),
104 VMSTATE_UINT64(env.vregs[24][0].ll, S390CPU),
105 VMSTATE_UINT64(env.vregs[25][0].ll, S390CPU),
106 VMSTATE_UINT64(env.vregs[26][0].ll, S390CPU),
107 VMSTATE_UINT64(env.vregs[27][0].ll, S390CPU),
108 VMSTATE_UINT64(env.vregs[28][0].ll, S390CPU),
109 VMSTATE_UINT64(env.vregs[29][0].ll, S390CPU),
110 VMSTATE_UINT64(env.vregs[30][0].ll, S390CPU),
111 VMSTATE_UINT64(env.vregs[31][0].ll, S390CPU),
112 VMSTATE_UINT64(env.vregs[0][1].ll, S390CPU),
113 VMSTATE_UINT64(env.vregs[1][1].ll, S390CPU),
114 VMSTATE_UINT64(env.vregs[2][1].ll, S390CPU),
115 VMSTATE_UINT64(env.vregs[3][1].ll, S390CPU),
116 VMSTATE_UINT64(env.vregs[4][1].ll, S390CPU),
117 VMSTATE_UINT64(env.vregs[5][1].ll, S390CPU),
118 VMSTATE_UINT64(env.vregs[6][1].ll, S390CPU),
119 VMSTATE_UINT64(env.vregs[7][1].ll, S390CPU),
120 VMSTATE_UINT64(env.vregs[8][1].ll, S390CPU),
121 VMSTATE_UINT64(env.vregs[9][1].ll, S390CPU),
122 VMSTATE_UINT64(env.vregs[10][1].ll, S390CPU),
123 VMSTATE_UINT64(env.vregs[11][1].ll, S390CPU),
124 VMSTATE_UINT64(env.vregs[12][1].ll, S390CPU),
125 VMSTATE_UINT64(env.vregs[13][1].ll, S390CPU),
126 VMSTATE_UINT64(env.vregs[14][1].ll, S390CPU),
127 VMSTATE_UINT64(env.vregs[15][1].ll, S390CPU),
128 VMSTATE_UINT64(env.vregs[16][1].ll, S390CPU),
129 VMSTATE_UINT64(env.vregs[17][1].ll, S390CPU),
130 VMSTATE_UINT64(env.vregs[18][1].ll, S390CPU),
131 VMSTATE_UINT64(env.vregs[19][1].ll, S390CPU),
132 VMSTATE_UINT64(env.vregs[20][1].ll, S390CPU),
133 VMSTATE_UINT64(env.vregs[21][1].ll, S390CPU),
134 VMSTATE_UINT64(env.vregs[22][1].ll, S390CPU),
135 VMSTATE_UINT64(env.vregs[23][1].ll, S390CPU),
136 VMSTATE_UINT64(env.vregs[24][1].ll, S390CPU),
137 VMSTATE_UINT64(env.vregs[25][1].ll, S390CPU),
138 VMSTATE_UINT64(env.vregs[26][1].ll, S390CPU),
139 VMSTATE_UINT64(env.vregs[27][1].ll, S390CPU),
140 VMSTATE_UINT64(env.vregs[28][1].ll, S390CPU),
141 VMSTATE_UINT64(env.vregs[29][1].ll, S390CPU),
142 VMSTATE_UINT64(env.vregs[30][1].ll, S390CPU),
143 VMSTATE_UINT64(env.vregs[31][1].ll, S390CPU),
144 VMSTATE_END_OF_LIST()
145 }
146 };
147
148 static bool riccb_needed(void *opaque)
149 {
150 #ifdef CONFIG_KVM
151 if (kvm_enabled()) {
152 return kvm_s390_get_ri();
153 }
154 #endif
155 return 0;
156 }
157
158 const VMStateDescription vmstate_riccb = {
159 .name = "cpu/riccb",
160 .version_id = 1,
161 .minimum_version_id = 1,
162 .needed = riccb_needed,
163 .fields = (VMStateField[]) {
164 VMSTATE_UINT8_ARRAY(env.riccb, S390CPU, 64),
165 VMSTATE_END_OF_LIST()
166 }
167 };
168
169 const VMStateDescription vmstate_s390_cpu = {
170 .name = "cpu",
171 .post_load = cpu_post_load,
172 .pre_save = cpu_pre_save,
173 .version_id = 4,
174 .minimum_version_id = 3,
175 .fields = (VMStateField[]) {
176 VMSTATE_UINT64_ARRAY(env.regs, S390CPU, 16),
177 VMSTATE_UINT64(env.psw.mask, S390CPU),
178 VMSTATE_UINT64(env.psw.addr, S390CPU),
179 VMSTATE_UINT64(env.psa, S390CPU),
180 VMSTATE_UINT32(env.todpr, S390CPU),
181 VMSTATE_UINT64(env.pfault_token, S390CPU),
182 VMSTATE_UINT64(env.pfault_compare, S390CPU),
183 VMSTATE_UINT64(env.pfault_select, S390CPU),
184 VMSTATE_UINT64(env.cputm, S390CPU),
185 VMSTATE_UINT64(env.ckc, S390CPU),
186 VMSTATE_UINT64(env.gbea, S390CPU),
187 VMSTATE_UINT64(env.pp, S390CPU),
188 VMSTATE_UINT32_ARRAY(env.aregs, S390CPU, 16),
189 VMSTATE_UINT64_ARRAY(env.cregs, S390CPU, 16),
190 VMSTATE_UINT8(env.cpu_state, S390CPU),
191 VMSTATE_UINT8(env.sigp_order, S390CPU),
192 VMSTATE_UINT32_V(irqstate_saved_size, S390CPU, 4),
193 VMSTATE_VBUFFER_UINT32(irqstate, S390CPU, 4, NULL, 0,
194 irqstate_saved_size),
195 VMSTATE_END_OF_LIST()
196 },
197 .subsections = (const VMStateDescription*[]) {
198 &vmstate_fpu,
199 &vmstate_vregs,
200 &vmstate_riccb,
201 NULL
202 },
203 };