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/*
* CPU models for s390x
*
* Copyright 2016 IBM Corp.
*
* Author(s): David Hildenbrand <dahi@linux.vnet.ibm.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or (at
* your option) any later version. See the COPYING file in the top-level
* directory.
*/
#ifndef TARGET_S390X_CPU_MODELS_H
#define TARGET_S390X_CPU_MODELS_H
#include "cpu_features.h"
#include "qom/cpu.h"
/* static CPU definition */
typedef struct S390CPUDef {
const char *name; /* name exposed to the user */
const char *desc; /* description exposed to the user */
uint8_t gen; /* hw generation identification */
uint16_t type; /* cpu type identification */
uint8_t ec_ga; /* EC GA version (on which also the BC is based) */
uint8_t mha_pow; /* Maximum Host Adress Power, mha = 2^pow-1 */
uint32_t hmfai; /* hypervisor-managed facilities */
/* base/min features, must never be changed between QEMU versions */
S390FeatBitmap base_feat;
/* used to init base_feat from generated data */
S390FeatInit base_init;
/* deafault features, QEMU version specific */
S390FeatBitmap default_feat;
/* used to init default_feat from generated data */
S390FeatInit default_init;
/* max allowed features, QEMU version specific */
S390FeatBitmap full_feat;
/* used to init full_feat from generated data */
S390FeatInit full_init;
} S390CPUDef;
/* CPU model based on a CPU definition */
typedef struct S390CPUModel {
const S390CPUDef *def;
S390FeatBitmap features;
/* values copied from the "host" model, can change during migration */
uint16_t lowest_ibc; /* lowest IBC that the hardware supports */
uint32_t cpu_id; /* CPU id */
uint8_t cpu_ver; /* CPU version, usually "ff" for kvm */
} S390CPUModel;
#define S390_GEN_Z10 0xa
uint32_t s390_get_hmfai(void);
uint8_t s390_get_mha_pow(void);
uint32_t s390_get_ibc_val(void);
static inline uint16_t s390_ibc_from_cpu_model(const S390CPUModel *model)
{
uint16_t ibc = 0;
if (model->def->gen >= S390_GEN_Z10) {
ibc = ((model->def->gen - S390_GEN_Z10) << 4) + model->def->ec_ga;
}
return ibc;
}
void s390_get_feat_block(S390FeatType type, uint8_t *data);
bool s390_has_feat(S390Feat feat);
#endif /* TARGET_S390X_CPU_MODELS_H */
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