qemu/target/s390x/gen-features.c

/*
 * S390 feature list generator
 *
 * Copyright 2016 IBM Corp.
 *
 * Author(s): Michael Mueller <mimu@linux.vnet.ibm.com>
 *            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.
 *
 */


#include "inttypes.h"
#include "stdio.h"
#include "cpu_features_def.h"

#define ARRAY_SIZE(array) (sizeof(array) / sizeof(array[0]))

/***** BEGIN FEATURE DEFS *****/

#define S390_FEAT_GROUP_PLO \
    S390_FEAT_PLO_CL, \
    S390_FEAT_PLO_CLG, \
    S390_FEAT_PLO_CLGR, \
    S390_FEAT_PLO_CLX, \
    S390_FEAT_PLO_CS, \
    S390_FEAT_PLO_CSG, \
    S390_FEAT_PLO_CSGR, \
    S390_FEAT_PLO_CSX, \
    S390_FEAT_PLO_DCS, \
    S390_FEAT_PLO_DCSG, \
    S390_FEAT_PLO_DCSGR, \
    S390_FEAT_PLO_DCSX, \
    S390_FEAT_PLO_CSST, \
    S390_FEAT_PLO_CSSTG, \
    S390_FEAT_PLO_CSSTGR, \
    S390_FEAT_PLO_CSSTX, \
    S390_FEAT_PLO_CSDST, \
    S390_FEAT_PLO_CSDSTG, \
    S390_FEAT_PLO_CSDSTGR, \
    S390_FEAT_PLO_CSDSTX, \
    S390_FEAT_PLO_CSTST, \
    S390_FEAT_PLO_CSTSTG, \
    S390_FEAT_PLO_CSTSTGR, \
    S390_FEAT_PLO_CSTSTX

#define S390_FEAT_GROUP_TOD_CLOCK_STEERING \
    S390_FEAT_TOD_CLOCK_STEERING, \
    S390_FEAT_PTFF_QTO, \
    S390_FEAT_PTFF_QSI, \
    S390_FEAT_PTFF_QPT, \
    S390_FEAT_PTFF_STO

#define S390_FEAT_GROUP_GEN13_PTFF \
    S390_FEAT_PTFF_QUI, \
    S390_FEAT_PTFF_QTOU, \
    S390_FEAT_PTFF_STOU

#define S390_FEAT_GROUP_MSA \
    S390_FEAT_MSA, \
    S390_FEAT_KMAC_DEA, \
    S390_FEAT_KMAC_TDEA_128, \
    S390_FEAT_KMAC_TDEA_192, \
    S390_FEAT_KMC_DEA, \
    S390_FEAT_KMC_TDEA_128, \
    S390_FEAT_KMC_TDEA_192, \
    S390_FEAT_KM_DEA, \
    S390_FEAT_KM_TDEA_128, \
    S390_FEAT_KM_TDEA_192, \
    S390_FEAT_KIMD_SHA_1, \
    S390_FEAT_KLMD_SHA_1

#define S390_FEAT_GROUP_MSA_EXT_1 \
    S390_FEAT_KMC_AES_128, \
    S390_FEAT_KM_AES_128, \
    S390_FEAT_KIMD_SHA_256, \
    S390_FEAT_KLMD_SHA_256

#define S390_FEAT_GROUP_MSA_EXT_2 \
    S390_FEAT_KMC_AES_192, \
    S390_FEAT_KMC_AES_256, \
    S390_FEAT_KMC_PRNG, \
    S390_FEAT_KM_AES_192, \
    S390_FEAT_KM_AES_256, \
    S390_FEAT_KIMD_SHA_512, \
    S390_FEAT_KLMD_SHA_512

#define S390_FEAT_GROUP_MSA_EXT_3 \
    S390_FEAT_MSA_EXT_3, \
    S390_FEAT_KMAC_EDEA, \
    S390_FEAT_KMAC_ETDEA_128, \
    S390_FEAT_KMAC_ETDEA_192, \
    S390_FEAT_KMC_EAES_128, \
    S390_FEAT_KMC_EAES_192, \
    S390_FEAT_KMC_EAES_256, \
    S390_FEAT_KMC_EDEA, \
    S390_FEAT_KMC_ETDEA_128, \
    S390_FEAT_KMC_ETDEA_192, \
    S390_FEAT_KM_EDEA, \
    S390_FEAT_KM_ETDEA_128, \
    S390_FEAT_KM_ETDEA_192, \
    S390_FEAT_KM_EAES_128, \
    S390_FEAT_KM_EAES_192, \
    S390_FEAT_KM_EAES_256, \
    S390_FEAT_PCKMO_EDEA, \
    S390_FEAT_PCKMO_ETDEA_128, \
    S390_FEAT_PCKMO_ETDEA_256, \
    S390_FEAT_PCKMO_AES_128, \
    S390_FEAT_PCKMO_AES_192, \
    S390_FEAT_PCKMO_AES_256

#define S390_FEAT_GROUP_MSA_EXT_4 \
    S390_FEAT_MSA_EXT_4, \
    S390_FEAT_KMAC_AES_128, \
    S390_FEAT_KMAC_AES_192, \
    S390_FEAT_KMAC_AES_256, \
    S390_FEAT_KMAC_EAES_128, \
    S390_FEAT_KMAC_EAES_192, \
    S390_FEAT_KMAC_EAES_256, \
    S390_FEAT_KM_XTS_AES_128, \
    S390_FEAT_KM_XTS_AES_256, \
    S390_FEAT_KM_XTS_EAES_128, \
    S390_FEAT_KM_XTS_EAES_256, \
    S390_FEAT_KIMD_GHASH, \
    S390_FEAT_KMCTR_DEA, \
    S390_FEAT_KMCTR_TDEA_128, \
    S390_FEAT_KMCTR_TDEA_192, \
    S390_FEAT_KMCTR_EDEA, \
    S390_FEAT_KMCTR_ETDEA_128, \
    S390_FEAT_KMCTR_ETDEA_192, \
    S390_FEAT_KMCTR_AES_128, \
    S390_FEAT_KMCTR_AES_192, \
    S390_FEAT_KMCTR_AES_256, \
    S390_FEAT_KMCTR_EAES_128, \
    S390_FEAT_KMCTR_EAES_192, \
    S390_FEAT_KMCTR_EAES_256, \
    S390_FEAT_KMF_DEA, \
    S390_FEAT_KMF_TDEA_128, \
    S390_FEAT_KMF_TDEA_192, \
    S390_FEAT_KMF_EDEA, \
    S390_FEAT_KMF_ETDEA_128, \
    S390_FEAT_KMF_ETDEA_192, \
    S390_FEAT_KMF_AES_128, \
    S390_FEAT_KMF_AES_192, \
    S390_FEAT_KMF_AES_256, \
    S390_FEAT_KMF_EAES_128, \
    S390_FEAT_KMF_EAES_192, \
    S390_FEAT_KMF_EAES_256, \
    S390_FEAT_KMO_DEA, \
    S390_FEAT_KMO_TDEA_128, \
    S390_FEAT_KMO_TDEA_192, \
    S390_FEAT_KMO_EDEA, \
    S390_FEAT_KMO_ETDEA_128, \
    S390_FEAT_KMO_ETDEA_192, \
    S390_FEAT_KMO_AES_128, \
    S390_FEAT_KMO_AES_192, \
    S390_FEAT_KMO_AES_256, \
    S390_FEAT_KMO_EAES_128, \
    S390_FEAT_KMO_EAES_192, \
    S390_FEAT_KMO_EAES_256, \
    S390_FEAT_PCC_CMAC_DEA, \
    S390_FEAT_PCC_CMAC_TDEA_128, \
    S390_FEAT_PCC_CMAC_TDEA_192, \
    S390_FEAT_PCC_CMAC_ETDEA_128, \
    S390_FEAT_PCC_CMAC_ETDEA_192, \
    S390_FEAT_PCC_CMAC_TDEA, \
    S390_FEAT_PCC_CMAC_AES_128, \
    S390_FEAT_PCC_CMAC_AES_192, \
    S390_FEAT_PCC_CMAC_AES_256, \
    S390_FEAT_PCC_CMAC_EAES_128, \
    S390_FEAT_PCC_CMAC_EAES_192, \
    S390_FEAT_PCC_CMAC_EAES_256, \
    S390_FEAT_PCC_XTS_AES_128, \
    S390_FEAT_PCC_XTS_AES_256, \
    S390_FEAT_PCC_XTS_EAES_128, \
    S390_FEAT_PCC_XTS_EAES_256

#define S390_FEAT_GROUP_MSA_EXT_5 \
    S390_FEAT_MSA_EXT_5, \
    S390_FEAT_PPNO_SHA_512_DRNG

/* cpu feature groups */
static uint16_t group_PLO[] = {
    S390_FEAT_GROUP_PLO,
};
static uint16_t group_TOD_CLOCK_STEERING[] = {
    S390_FEAT_GROUP_TOD_CLOCK_STEERING,
};
static uint16_t group_GEN13_PTFF[] = {
    S390_FEAT_GROUP_GEN13_PTFF,
};
static uint16_t group_MSA[] = {
    S390_FEAT_GROUP_MSA,
};
static uint16_t group_MSA_EXT_1[] = {
    S390_FEAT_GROUP_MSA_EXT_1,
};
static uint16_t group_MSA_EXT_2[] = {
    S390_FEAT_GROUP_MSA_EXT_2,
};
static uint16_t group_MSA_EXT_3[] = {
    S390_FEAT_GROUP_MSA_EXT_3,
};
static uint16_t group_MSA_EXT_4[] = {
    S390_FEAT_GROUP_MSA_EXT_4,
};
static uint16_t group_MSA_EXT_5[] = {
    S390_FEAT_GROUP_MSA_EXT_5,
};

/* base features in order of release */
static uint16_t base_GEN7_GA1[] = {
    S390_FEAT_GROUP_PLO,
    S390_FEAT_ESAN3,
    S390_FEAT_ZARCH,
};
#define base_GEN7_GA2 EmptyFeat
#define base_GEN7_GA3 EmptyFeat
static uint16_t base_GEN8_GA1[] = {
    S390_FEAT_DAT_ENH,
    S390_FEAT_EXTENDED_TRANSLATION_2,
    S390_FEAT_GROUP_MSA,
    S390_FEAT_LONG_DISPLACEMENT,
    S390_FEAT_LONG_DISPLACEMENT_FAST,
    S390_FEAT_HFP_MADDSUB,
};
#define base_GEN8_GA2 EmptyFeat
#define base_GEN8_GA3 EmptyFeat
#define base_GEN8_GA4 EmptyFeat
#define base_GEN8_GA5 EmptyFeat
static uint16_t base_GEN9_GA1[] = {
    S390_FEAT_IDTE_SEGMENT,
    S390_FEAT_ASN_LX_REUSE,
    S390_FEAT_STFLE,
    S390_FEAT_SENSE_RUNNING_STATUS,
    S390_FEAT_EXTENDED_IMMEDIATE,
    S390_FEAT_EXTENDED_TRANSLATION_3,
    S390_FEAT_HFP_UNNORMALIZED_EXT,
    S390_FEAT_ETF2_ENH,
    S390_FEAT_STORE_CLOCK_FAST,
    S390_FEAT_GROUP_TOD_CLOCK_STEERING,
    S390_FEAT_ETF3_ENH,
    S390_FEAT_DAT_ENH_2,
};
#define base_GEN9_GA2 EmptyFeat
#define base_GEN9_GA3 EmptyFeat
static uint16_t base_GEN10_GA1[] = {
    S390_FEAT_CONDITIONAL_SSKE,
    S390_FEAT_PARSING_ENH,
    S390_FEAT_MOVE_WITH_OPTIONAL_SPEC,
    S390_FEAT_EXTRACT_CPU_TIME,
    S390_FEAT_COMPARE_AND_SWAP_AND_STORE,
    S390_FEAT_COMPARE_AND_SWAP_AND_STORE_2,
    S390_FEAT_GENERAL_INSTRUCTIONS_EXT,
    S390_FEAT_EXECUTE_EXT,
    S390_FEAT_FLOATING_POINT_SUPPPORT_ENH,
    S390_FEAT_DFP,
    S390_FEAT_DFP_FAST,
    S390_FEAT_PFPO,
};
#define base_GEN10_GA2 EmptyFeat
#define base_GEN10_GA3 EmptyFeat
static uint16_t base_GEN11_GA1[] = {
    S390_FEAT_NONQ_KEY_SETTING,
    S390_FEAT_ENHANCED_MONITOR,
    S390_FEAT_FLOATING_POINT_EXT,
    S390_FEAT_SET_PROGRAM_PARAMETERS,
    S390_FEAT_STFLE_45,
    S390_FEAT_CMPSC_ENH,
    S390_FEAT_INTERLOCKED_ACCESS_2,
};
#define base_GEN11_GA2 EmptyFeat
static uint16_t base_GEN12_GA1[] = {
    S390_FEAT_DFP_ZONED_CONVERSION,
    S390_FEAT_STFLE_49,
    S390_FEAT_LOCAL_TLB_CLEARING,
};
#define base_GEN12_GA2 EmptyFeat
static uint16_t base_GEN13_GA1[] = {
    S390_FEAT_STFLE_53,
    S390_FEAT_DFP_PACKED_CONVERSION,
    S390_FEAT_GROUP_GEN13_PTFF,
};
#define base_GEN13_GA2 EmptyFeat

/* full features differing to the base in order of release */
static uint16_t full_GEN7_GA1[] = {
    S390_FEAT_SIE_F2,
    S390_FEAT_SIE_SKEY,
    S390_FEAT_SIE_GPERE,
    S390_FEAT_SIE_IB,
    S390_FEAT_SIE_CEI,
};
static uint16_t full_GEN7_GA2[] = {
    S390_FEAT_EXTENDED_TRANSLATION_2,
};
static uint16_t full_GEN7_GA3[] = {
    S390_FEAT_LONG_DISPLACEMENT,
    S390_FEAT_SIE_SIIF,
};
static uint16_t full_GEN8_GA1[] = {
    S390_FEAT_SIE_GSLS,
    S390_FEAT_SIE_64BSCAO,
};
#define full_GEN8_GA2 EmptyFeat
static uint16_t full_GEN8_GA3[] = {
    S390_FEAT_ASN_LX_REUSE,
    S390_FEAT_EXTENDED_TRANSLATION_3,
};
#define full_GEN8_GA4 EmptyFeat
#define full_GEN8_GA5 EmptyFeat
static uint16_t full_GEN9_GA1[] = {
    S390_FEAT_STORE_HYPERVISOR_INFO,
    S390_FEAT_GROUP_MSA_EXT_1,
    S390_FEAT_CMM,
    S390_FEAT_SIE_CMMA,
};
static uint16_t full_GEN9_GA2[] = {
    S390_FEAT_MOVE_WITH_OPTIONAL_SPEC,
    S390_FEAT_EXTRACT_CPU_TIME,
    S390_FEAT_COMPARE_AND_SWAP_AND_STORE,
    S390_FEAT_FLOATING_POINT_SUPPPORT_ENH,
    S390_FEAT_DFP,
};
static uint16_t full_GEN9_GA3[] = {
    S390_FEAT_CONDITIONAL_SSKE,
    S390_FEAT_PFPO,
};
static uint16_t full_GEN10_GA1[] = {
    S390_FEAT_EDAT,
    S390_FEAT_CONFIGURATION_TOPOLOGY,
    S390_FEAT_GROUP_MSA_EXT_2,
    S390_FEAT_ESOP,
    S390_FEAT_SIE_PFMFI,
    S390_FEAT_SIE_SIGPIF,
};
static uint16_t full_GEN10_GA2[] = {
    S390_FEAT_SET_PROGRAM_PARAMETERS,
    S390_FEAT_SIE_IBS,
};
static uint16_t full_GEN10_GA3[] = {
    S390_FEAT_GROUP_MSA_EXT_3,
};
static uint16_t full_GEN11_GA1[] = {
    S390_FEAT_IPTE_RANGE,
    S390_FEAT_ACCESS_EXCEPTION_FS_INDICATION,
    S390_FEAT_GROUP_MSA_EXT_4,
};
#define full_GEN11_GA2 EmptyFeat
static uint16_t full_GEN12_GA1[] = {
    S390_FEAT_CONSTRAINT_TRANSACTIONAL_EXE,
    S390_FEAT_TRANSACTIONAL_EXE,
    S390_FEAT_RUNTIME_INSTRUMENTATION,
    S390_FEAT_EDAT_2,
};
static uint16_t full_GEN12_GA2[] = {
    S390_FEAT_GROUP_MSA_EXT_5,
};
static uint16_t full_GEN13_GA1[] = {
    S390_FEAT_VECTOR,
};
#define full_GEN13_GA2 EmptyFeat

/* default features differing to the base in order of release */
#define default_GEN7_GA1 EmptyFeat
#define default_GEN7_GA2 EmptyFeat
#define default_GEN7_GA3 EmptyFeat
#define default_GEN8_GA1 EmptyFeat
#define default_GEN8_GA2 EmptyFeat
#define default_GEN8_GA3 EmptyFeat
#define default_GEN8_GA4 EmptyFeat
#define default_GEN8_GA5 EmptyFeat
static uint16_t default_GEN9_GA1[] = {
    S390_FEAT_STORE_HYPERVISOR_INFO,
    S390_FEAT_GROUP_MSA_EXT_1,
    S390_FEAT_CMM,
};
#define default_GEN9_GA2 EmptyFeat
#define default_GEN9_GA3 EmptyFeat
static uint16_t default_GEN10_GA1[] = {
    S390_FEAT_EDAT,
    S390_FEAT_GROUP_MSA_EXT_2,
};
#define default_GEN10_GA2 EmptyFeat
#define default_GEN10_GA3 EmptyFeat
static uint16_t default_GEN11_GA1[] = {
    S390_FEAT_GROUP_MSA_EXT_3,
    S390_FEAT_IPTE_RANGE,
    S390_FEAT_ACCESS_EXCEPTION_FS_INDICATION,
    S390_FEAT_GROUP_MSA_EXT_4,
};
#define default_GEN11_GA2 EmptyFeat
static uint16_t default_GEN12_GA1[] = {
    S390_FEAT_CONSTRAINT_TRANSACTIONAL_EXE,
    S390_FEAT_TRANSACTIONAL_EXE,
    S390_FEAT_RUNTIME_INSTRUMENTATION,
    S390_FEAT_EDAT_2,
};
#define default_GEN12_GA2 EmptyFeat
static uint16_t default_GEN13_GA1[] = {
    S390_FEAT_GROUP_MSA_EXT_5,
    S390_FEAT_VECTOR,
};
#define default_GEN13_GA2 EmptyFeat

/****** END FEATURE DEFS ******/

#define _YEARS  "2016"
#define _NAME_H "TARGET_S390X_GEN_FEATURES_H"

#define CPU_FEAT_INITIALIZER(_name)                    \
    {                                                  \
        .name = "S390_FEAT_LIST_" #_name,              \
        .base_bits =                                   \
            { .data = base_##_name,                    \
              .len = ARRAY_SIZE(base_##_name) },       \
        .default_bits =                                \
            { .data = default_##_name,                 \
              .len = ARRAY_SIZE(default_##_name) },    \
        .full_bits =                                   \
            { .data = full_##_name,                    \
              .len = ARRAY_SIZE(full_##_name) },       \
    }

typedef struct BitSpec {
    uint16_t *data;
    uint32_t len;
} BitSpec;

typedef struct {
    const char *name;
    BitSpec base_bits;
    BitSpec default_bits;
    BitSpec full_bits;
} CpuFeatDefSpec;

static uint16_t EmptyFeat[] = {};

/*******************************
 * processor GA series
 *******************************/
static CpuFeatDefSpec CpuFeatDef[] = {
    CPU_FEAT_INITIALIZER(GEN7_GA1),
    CPU_FEAT_INITIALIZER(GEN7_GA2),
    CPU_FEAT_INITIALIZER(GEN7_GA3),
    CPU_FEAT_INITIALIZER(GEN8_GA1),
    CPU_FEAT_INITIALIZER(GEN8_GA2),
    CPU_FEAT_INITIALIZER(GEN8_GA3),
    CPU_FEAT_INITIALIZER(GEN8_GA4),
    CPU_FEAT_INITIALIZER(GEN8_GA5),
    CPU_FEAT_INITIALIZER(GEN9_GA1),
    CPU_FEAT_INITIALIZER(GEN9_GA2),
    CPU_FEAT_INITIALIZER(GEN9_GA3),
    CPU_FEAT_INITIALIZER(GEN10_GA1),
    CPU_FEAT_INITIALIZER(GEN10_GA2),
    CPU_FEAT_INITIALIZER(GEN10_GA3),
    CPU_FEAT_INITIALIZER(GEN11_GA1),
    CPU_FEAT_INITIALIZER(GEN11_GA2),
    CPU_FEAT_INITIALIZER(GEN12_GA1),
    CPU_FEAT_INITIALIZER(GEN12_GA2),
    CPU_FEAT_INITIALIZER(GEN13_GA1),
    CPU_FEAT_INITIALIZER(GEN13_GA2),
};

#define FEAT_GROUP_INITIALIZER(_name)                  \
    {                                                  \
        .name = "S390_FEAT_GROUP_LIST_" #_name,        \
        .bits =                                        \
            { .data = group_##_name,                   \
              .len = ARRAY_SIZE(group_##_name) },      \
    }

typedef struct {
    const char *name;
    BitSpec bits;
} FeatGroupDefSpec;

/*******************************
 * feature groups
 *******************************/
static FeatGroupDefSpec FeatGroupDef[] = {
    FEAT_GROUP_INITIALIZER(PLO),
    FEAT_GROUP_INITIALIZER(TOD_CLOCK_STEERING),
    FEAT_GROUP_INITIALIZER(GEN13_PTFF),
    FEAT_GROUP_INITIALIZER(MSA),
    FEAT_GROUP_INITIALIZER(MSA_EXT_1),
    FEAT_GROUP_INITIALIZER(MSA_EXT_2),
    FEAT_GROUP_INITIALIZER(MSA_EXT_3),
    FEAT_GROUP_INITIALIZER(MSA_EXT_4),
    FEAT_GROUP_INITIALIZER(MSA_EXT_5),
};

static void set_bits(uint64_t list[], BitSpec bits)
{
    uint32_t i;

    for (i = 0; i < bits.len; i++) {
        list[bits.data[i] / 64] |= 1ULL << (bits.data[i] % 64);
    }
}

static void print_feature_defs(void)
{
    uint64_t base_feat[S390_FEAT_MAX / 64 + 1] = {};
    uint64_t default_feat[S390_FEAT_MAX / 64 + 1] = {};
    uint64_t full_feat[S390_FEAT_MAX / 64 + 1] = {};
    int i, j;

    printf("\n/* CPU model feature list data */\n");

    for (i = 0; i < ARRAY_SIZE(CpuFeatDef); i++) {
        set_bits(base_feat, CpuFeatDef[i].base_bits);
        /* add the base to the default features */
        set_bits(default_feat, CpuFeatDef[i].base_bits);
        set_bits(default_feat, CpuFeatDef[i].default_bits);
        /* add the base to the full features */
        set_bits(full_feat, CpuFeatDef[i].base_bits);
        set_bits(full_feat, CpuFeatDef[i].full_bits);

        printf("#define %s_BASE\t", CpuFeatDef[i].name);
        for (j = 0; j < ARRAY_SIZE(base_feat); j++) {
            printf("0x%016"PRIx64"ULL", base_feat[j]);
            if (j < ARRAY_SIZE(base_feat) - 1) {
                printf(",");
            } else {
                printf("\n");
            }
        }
        printf("#define %s_DEFAULT\t", CpuFeatDef[i].name);
        for (j = 0; j < ARRAY_SIZE(default_feat); j++) {
            printf("0x%016"PRIx64"ULL", default_feat[j]);
            if (j < ARRAY_SIZE(default_feat) - 1) {
                printf(",");
            } else {
                printf("\n");
            }
        }
        printf("#define %s_FULL\t\t", CpuFeatDef[i].name);
        for (j = 0; j < ARRAY_SIZE(full_feat); j++) {
            printf("0x%016"PRIx64"ULL", full_feat[j]);
            if (j < ARRAY_SIZE(full_feat) - 1) {
                printf(",");
            } else {
                printf("\n");
            }
        }
    }
}

static void print_feature_group_defs(void)
{
    int i, j;

    printf("\n/* CPU feature group list data */\n");

    for (i = 0; i < ARRAY_SIZE(FeatGroupDef); i++) {
        uint64_t feat[S390_FEAT_MAX / 64 + 1] = {};

        set_bits(feat, FeatGroupDef[i].bits);
        printf("#define %s\t", FeatGroupDef[i].name);
        for (j = 0; j < ARRAY_SIZE(feat); j++) {
            printf("0x%016"PRIx64"ULL", feat[j]);
            if (j < ARRAY_SIZE(feat) - 1) {
                printf(",");
            } else {
                printf("\n");
            }
        }
    }
}

int main(int argc, char *argv[])
{
    printf("/*\n"
           " * AUTOMATICALLY GENERATED, DO NOT MODIFY HERE, EDIT\n"
           " * SOURCE FILE \"%s\" INSTEAD.\n"
           " *\n"
           " * Copyright %s IBM Corp.\n"
           " *\n"
           " * This work is licensed under the terms of the GNU GPL, "
           "version 2 or (at\n * your option) any later version. See "
           "the COPYING file in the top-level\n * directory.\n"
           " */\n\n"
           "#ifndef %s\n#define %s\n", __FILE__, _YEARS, _NAME_H, _NAME_H);
    print_feature_defs();
    print_feature_group_defs();
    printf("\n#endif\n");
    return 0;
}