s390x/sclp: propagate hmfai
[qemu/ar7.git] / target-s390x / cpu_models.h
blob87de0fb12b6d1c3f73f2ccab52071d73b07fb901
1 /*
2 * CPU models for s390x
4 * Copyright 2016 IBM Corp.
6 * Author(s): David Hildenbrand <dahi@linux.vnet.ibm.com>
8 * This work is licensed under the terms of the GNU GPL, version 2 or (at
9 * your option) any later version. See the COPYING file in the top-level
10 * directory.
13 #ifndef TARGET_S390X_CPU_MODELS_H
14 #define TARGET_S390X_CPU_MODELS_H
16 #include "cpu_features.h"
17 #include "qom/cpu.h"
19 /* static CPU definition */
20 typedef struct S390CPUDef {
21 const char *name; /* name exposed to the user */
22 const char *desc; /* description exposed to the user */
23 uint8_t gen; /* hw generation identification */
24 uint16_t type; /* cpu type identification */
25 uint8_t ec_ga; /* EC GA version (on which also the BC is based) */
26 uint8_t mha_pow; /* Maximum Host Adress Power, mha = 2^pow-1 */
27 uint32_t hmfai; /* hypervisor-managed facilities */
28 /* base/min features, must never be changed between QEMU versions */
29 S390FeatBitmap base_feat;
30 /* used to init base_feat from generated data */
31 S390FeatInit base_init;
32 /* deafault features, QEMU version specific */
33 S390FeatBitmap default_feat;
34 /* used to init default_feat from generated data */
35 S390FeatInit default_init;
36 /* max allowed features, QEMU version specific */
37 S390FeatBitmap full_feat;
38 /* used to init full_feat from generated data */
39 S390FeatInit full_init;
40 } S390CPUDef;
42 /* CPU model based on a CPU definition */
43 typedef struct S390CPUModel {
44 const S390CPUDef *def;
45 S390FeatBitmap features;
46 /* values copied from the "host" model, can change during migration */
47 uint16_t lowest_ibc; /* lowest IBC that the hardware supports */
48 uint32_t cpu_id; /* CPU id */
49 uint8_t cpu_ver; /* CPU version, usually "ff" for kvm */
50 } S390CPUModel;
52 #define S390_GEN_Z10 0xa
54 uint32_t s390_get_hmfai(void);
55 uint8_t s390_get_mha_pow(void);
56 uint32_t s390_get_ibc_val(void);
57 static inline uint16_t s390_ibc_from_cpu_model(const S390CPUModel *model)
59 uint16_t ibc = 0;
61 if (model->def->gen >= S390_GEN_Z10) {
62 ibc = ((model->def->gen - S390_GEN_Z10) << 4) + model->def->ec_ga;
64 return ibc;
66 void s390_get_feat_block(S390FeatType type, uint8_t *data);
67 bool s390_has_feat(S390Feat feat);
69 #endif /* TARGET_S390X_CPU_MODELS_H */