helper.c

来自「xen虚拟机源代码安装包」· C语言 代码 · 共 1,349 行 · 第 1/3 页

        .mmu_cxr_mask = 0x000000ff,
        .mmu_sfsr_mask = 0x00016fff,
        .mmu_trcr_mask = 0x00ffffff,
        .features = CPU_DEFAULT_FEATURES,
    },
    {
        .name = "Fujitsu MB86907",
        .iu_version = 0x05 << 24, /* Impl 0, ver 5 */
        .fpu_version = 4 << 17, /* FPU version 4 (Meiko) */
        .mmu_version = 0x05 << 24, /* Impl 0, ver 5 */
        .mmu_bm = 0x00004000,
        .mmu_ctpr_mask = 0xffffffc0,
        .mmu_cxr_mask = 0x000000ff,
        .mmu_sfsr_mask = 0x00016fff,
        .mmu_trcr_mask = 0xffffffff,
        .features = CPU_DEFAULT_FEATURES,
    },
    {
        .name = "LSI L64811",
        .iu_version = 0x10 << 24, /* Impl 1, ver 0 */
        .fpu_version = 1 << 17, /* FPU version 1 (LSI L64814) */
        .mmu_version = 0x10 << 24,
        .mmu_bm = 0x00004000,
        .mmu_ctpr_mask = 0x007ffff0,
        .mmu_cxr_mask = 0x0000003f,
        .mmu_sfsr_mask = 0xffffffff,
        .mmu_trcr_mask = 0xffffffff,
        .features = CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP | CPU_FEATURE_FSQRT,
    },
    {
        .name = "Cypress CY7C601",
        .iu_version = 0x11 << 24, /* Impl 1, ver 1 */
        .fpu_version = 3 << 17, /* FPU version 3 (Cypress CY7C602) */
        .mmu_version = 0x10 << 24,
        .mmu_bm = 0x00004000,
        .mmu_ctpr_mask = 0x007ffff0,
        .mmu_cxr_mask = 0x0000003f,
        .mmu_sfsr_mask = 0xffffffff,
        .mmu_trcr_mask = 0xffffffff,
        .features = CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP | CPU_FEATURE_FSQRT,
    },
    {
        .name = "Cypress CY7C611",
        .iu_version = 0x13 << 24, /* Impl 1, ver 3 */
        .fpu_version = 3 << 17, /* FPU version 3 (Cypress CY7C602) */
        .mmu_version = 0x10 << 24,
        .mmu_bm = 0x00004000,
        .mmu_ctpr_mask = 0x007ffff0,
        .mmu_cxr_mask = 0x0000003f,
        .mmu_sfsr_mask = 0xffffffff,
        .mmu_trcr_mask = 0xffffffff,
        .features = CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP | CPU_FEATURE_FSQRT,
    },
    {
        .name = "TI SuperSparc II",
        .iu_version = 0x40000000,
        .fpu_version = 0 << 17,
        .mmu_version = 0x04000000,
        .mmu_bm = 0x00002000,
        .mmu_ctpr_mask = 0xffffffc0,
        .mmu_cxr_mask = 0x0000ffff,
        .mmu_sfsr_mask = 0xffffffff,
        .mmu_trcr_mask = 0xffffffff,
        .features = CPU_DEFAULT_FEATURES,
    },
    {
        .name = "TI MicroSparc I",
        .iu_version = 0x41000000,
        .fpu_version = 4 << 17,
        .mmu_version = 0x41000000,
        .mmu_bm = 0x00004000,
        .mmu_ctpr_mask = 0x007ffff0,
        .mmu_cxr_mask = 0x0000003f,
        .mmu_sfsr_mask = 0x00016fff,
        .mmu_trcr_mask = 0x0000003f,
        .features = CPU_DEFAULT_FEATURES,
    },
    {
        .name = "TI MicroSparc II",
        .iu_version = 0x42000000,
        .fpu_version = 4 << 17,
        .mmu_version = 0x02000000,
        .mmu_bm = 0x00004000,
        .mmu_ctpr_mask = 0x00ffffc0,
        .mmu_cxr_mask = 0x000000ff,
        .mmu_sfsr_mask = 0x00016fff,
        .mmu_trcr_mask = 0x00ffffff,
        .features = CPU_DEFAULT_FEATURES,
    },
    {
        .name = "TI MicroSparc IIep",
        .iu_version = 0x42000000,
        .fpu_version = 4 << 17,
        .mmu_version = 0x04000000,
        .mmu_bm = 0x00004000,
        .mmu_ctpr_mask = 0x00ffffc0,
        .mmu_cxr_mask = 0x000000ff,
        .mmu_sfsr_mask = 0x00016bff,
        .mmu_trcr_mask = 0x00ffffff,
        .features = CPU_DEFAULT_FEATURES,
    },
    {
        .name = "TI SuperSparc 51",
        .iu_version = 0x43000000,
        .fpu_version = 0 << 17,
        .mmu_version = 0x04000000,
        .mmu_bm = 0x00002000,
        .mmu_ctpr_mask = 0xffffffc0,
        .mmu_cxr_mask = 0x0000ffff,
        .mmu_sfsr_mask = 0xffffffff,
        .mmu_trcr_mask = 0xffffffff,
        .features = CPU_DEFAULT_FEATURES,
    },
    {
        .name = "TI SuperSparc 61",
        .iu_version = 0x44000000,
        .fpu_version = 0 << 17,
        .mmu_version = 0x04000000,
        .mmu_bm = 0x00002000,
        .mmu_ctpr_mask = 0xffffffc0,
        .mmu_cxr_mask = 0x0000ffff,
        .mmu_sfsr_mask = 0xffffffff,
        .mmu_trcr_mask = 0xffffffff,
        .features = CPU_DEFAULT_FEATURES,
    },
    {
        .name = "Ross RT625",
        .iu_version = 0x1e000000,
        .fpu_version = 1 << 17,
        .mmu_version = 0x1e000000,
        .mmu_bm = 0x00004000,
        .mmu_ctpr_mask = 0x007ffff0,
        .mmu_cxr_mask = 0x0000003f,
        .mmu_sfsr_mask = 0xffffffff,
        .mmu_trcr_mask = 0xffffffff,
        .features = CPU_DEFAULT_FEATURES,
    },
    {
        .name = "Ross RT620",
        .iu_version = 0x1f000000,
        .fpu_version = 1 << 17,
        .mmu_version = 0x1f000000,
        .mmu_bm = 0x00004000,
        .mmu_ctpr_mask = 0x007ffff0,
        .mmu_cxr_mask = 0x0000003f,
        .mmu_sfsr_mask = 0xffffffff,
        .mmu_trcr_mask = 0xffffffff,
        .features = CPU_DEFAULT_FEATURES,
    },
    {
        .name = "BIT B5010",
        .iu_version = 0x20000000,
        .fpu_version = 0 << 17, /* B5010/B5110/B5120/B5210 */
        .mmu_version = 0x20000000,
        .mmu_bm = 0x00004000,
        .mmu_ctpr_mask = 0x007ffff0,
        .mmu_cxr_mask = 0x0000003f,
        .mmu_sfsr_mask = 0xffffffff,
        .mmu_trcr_mask = 0xffffffff,
        .features = CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP | CPU_FEATURE_FSQRT,
    },
    {
        .name = "Matsushita MN10501",
        .iu_version = 0x50000000,
        .fpu_version = 0 << 17,
        .mmu_version = 0x50000000,
        .mmu_bm = 0x00004000,
        .mmu_ctpr_mask = 0x007ffff0,
        .mmu_cxr_mask = 0x0000003f,
        .mmu_sfsr_mask = 0xffffffff,
        .mmu_trcr_mask = 0xffffffff,
        .features = CPU_FEATURE_FLOAT | CPU_FEATURE_MUL | CPU_FEATURE_FSQRT,
    },
    {
        .name = "Weitek W8601",
        .iu_version = 0x90 << 24, /* Impl 9, ver 0 */
        .fpu_version = 3 << 17, /* FPU version 3 (Weitek WTL3170/2) */
        .mmu_version = 0x10 << 24,
        .mmu_bm = 0x00004000,
        .mmu_ctpr_mask = 0x007ffff0,
        .mmu_cxr_mask = 0x0000003f,
        .mmu_sfsr_mask = 0xffffffff,
        .mmu_trcr_mask = 0xffffffff,
        .features = CPU_DEFAULT_FEATURES,
    },
    {
        .name = "LEON2",
        .iu_version = 0xf2000000,
        .fpu_version = 4 << 17, /* FPU version 4 (Meiko) */
        .mmu_version = 0xf2000000,
        .mmu_bm = 0x00004000,
        .mmu_ctpr_mask = 0x007ffff0,
        .mmu_cxr_mask = 0x0000003f,
        .mmu_sfsr_mask = 0xffffffff,
        .mmu_trcr_mask = 0xffffffff,
        .features = CPU_DEFAULT_FEATURES,
    },
    {
        .name = "LEON3",
        .iu_version = 0xf3000000,
        .fpu_version = 4 << 17, /* FPU version 4 (Meiko) */
        .mmu_version = 0xf3000000,
        .mmu_bm = 0x00004000,
        .mmu_ctpr_mask = 0x007ffff0,
        .mmu_cxr_mask = 0x0000003f,
        .mmu_sfsr_mask = 0xffffffff,
        .mmu_trcr_mask = 0xffffffff,
        .features = CPU_DEFAULT_FEATURES,
    },
#endif
};

static const char * const feature_name[] = {
    "float",
    "float128",
    "swap",
    "mul",
    "div",
    "flush",
    "fsqrt",
    "fmul",
    "vis1",
    "vis2",
};

static void print_features(FILE *f,
                           int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
                           uint32_t features, const char *prefix)
{
    unsigned int i;

    for (i = 0; i < ARRAY_SIZE(feature_name); i++)
        if (feature_name[i] && (features & (1 << i))) {
            if (prefix)
                (*cpu_fprintf)(f, "%s", prefix);
            (*cpu_fprintf)(f, "%s ", feature_name[i]);
        }
}

static void add_flagname_to_bitmaps(const char *flagname, uint32_t *features)
{
    unsigned int i;

    for (i = 0; i < ARRAY_SIZE(feature_name); i++)
        if (feature_name[i] && !strcmp(flagname, feature_name[i])) {
            *features |= 1 << i;
            return;
        }
    fprintf(stderr, "CPU feature %s not found\n", flagname);
}

static int cpu_sparc_find_by_name(sparc_def_t *cpu_def, const char *cpu_model)
{
    unsigned int i;
    const sparc_def_t *def = NULL;
    char *s = strdup(cpu_model);
    char *featurestr, *name = strtok(s, ",");
    uint32_t plus_features = 0;
    uint32_t minus_features = 0;
    long long iu_version;
    uint32_t fpu_version, mmu_version;

    for (i = 0; i < sizeof(sparc_defs) / sizeof(sparc_def_t); i++) {
        if (strcasecmp(name, sparc_defs[i].name) == 0) {
            def = &sparc_defs[i];
        }
    }
    if (!def)
        goto error;
    memcpy(cpu_def, def, sizeof(*def));

    featurestr = strtok(NULL, ",");
    while (featurestr) {
        char *val;

        if (featurestr[0] == '+') {
            add_flagname_to_bitmaps(featurestr + 1, &plus_features);
        } else if (featurestr[0] == '-') {
            add_flagname_to_bitmaps(featurestr + 1, &minus_features);
        } else if ((val = strchr(featurestr, '='))) {
            *val = 0; val++;
            if (!strcmp(featurestr, "iu_version")) {
                char *err;

                iu_version = strtoll(val, &err, 0);
                if (!*val || *err) {
                    fprintf(stderr, "bad numerical value %s\n", val);
                    goto error;
                }
                cpu_def->iu_version = iu_version;
#ifdef DEBUG_FEATURES
                fprintf(stderr, "iu_version %llx\n", iu_version);
#endif
            } else if (!strcmp(featurestr, "fpu_version")) {
                char *err;

                fpu_version = strtol(val, &err, 0);
                if (!*val || *err) {
                    fprintf(stderr, "bad numerical value %s\n", val);
                    goto error;
                }
                cpu_def->fpu_version = fpu_version;
#ifdef DEBUG_FEATURES
                fprintf(stderr, "fpu_version %llx\n", fpu_version);
#endif
            } else if (!strcmp(featurestr, "mmu_version")) {
                char *err;

                mmu_version = strtol(val, &err, 0);
                if (!*val || *err) {
                    fprintf(stderr, "bad numerical value %s\n", val);
                    goto error;
                }
                cpu_def->mmu_version = mmu_version;
#ifdef DEBUG_FEATURES
                fprintf(stderr, "mmu_version %llx\n", mmu_version);
#endif
            } else {
                fprintf(stderr, "unrecognized feature %s\n", featurestr);
                goto error;
            }
        } else {
            fprintf(stderr, "feature string `%s' not in format "
                    "(+feature|-feature|feature=xyz)\n", featurestr);
            goto error;
        }
        featurestr = strtok(NULL, ",");
    }
    cpu_def->features |= plus_features;
    cpu_def->features &= ~minus_features;
#ifdef DEBUG_FEATURES
    print_features(stderr, fprintf, cpu_def->features, NULL);
#endif
    free(s);
    return 0;

 error:
    free(s);
    return -1;
}

void sparc_cpu_list(FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt, ...))
{
    unsigned int i;

    for (i = 0; i < sizeof(sparc_defs) / sizeof(sparc_def_t); i++) {
        (*cpu_fprintf)(f, "Sparc %16s IU " TARGET_FMT_lx " FPU %08x MMU %08x ",
                       sparc_defs[i].name,
                       sparc_defs[i].iu_version,
                       sparc_defs[i].fpu_version,
                       sparc_defs[i].mmu_version);
        print_features(f, cpu_fprintf, CPU_DEFAULT_FEATURES &
                       ~sparc_defs[i].features, "-");
        print_features(f, cpu_fprintf, ~CPU_DEFAULT_FEATURES &
                       sparc_defs[i].features, "+");
        (*cpu_fprintf)(f, "\n");
    }
    (*cpu_fprintf)(f, "CPU feature flags (+/-): ");
    print_features(f, cpu_fprintf, -1, NULL);
    (*cpu_fprintf)(f, "\n");
    (*cpu_fprintf)(f, "Numerical features (=): iu_version fpu_version "
                   "mmu_version\n");
}

#define GET_FLAG(a,b) ((env->psr & a)?b:'-')

void cpu_dump_state(CPUState *env, FILE *f,
                    int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
                    int flags)
{
    int i, x;

    cpu_fprintf(f, "pc: " TARGET_FMT_lx "  npc: " TARGET_FMT_lx "\n", env->pc,
                env->npc);
    cpu_fprintf(f, "General Registers:\n");
    for (i = 0; i < 4; i++)
        cpu_fprintf(f, "%%g%c: " TARGET_FMT_lx "\t", i + '0', env->gregs[i]);
    cpu_fprintf(f, "\n");
    for (; i < 8; i++)
        cpu_fprintf(f, "%%g%c: " TARGET_FMT_lx "\t", i + '0', env->gregs[i]);
    cpu_fprintf(f, "\nCurrent Register Window:\n");
    for (x = 0; x < 3; x++) {
        for (i = 0; i < 4; i++)
            cpu_fprintf(f, "%%%c%d: " TARGET_FMT_lx "\t",
                    (x == 0 ? 'o' : (x == 1 ? 'l' : 'i')), i,
                    env->regwptr[i + x * 8]);
        cpu_fprintf(f, "\n");
        for (; i < 8; i++)
            cpu_fprintf(f, "%%%c%d: " TARGET_FMT_lx "\t",
                    (x == 0 ? 'o' : x == 1 ? 'l' : 'i'), i,
                    env->regwptr[i + x * 8]);
        cpu_fprintf(f, "\n");
    }
    cpu_fprintf(f, "\nFloating Point Registers:\n");
    for (i = 0; i < 32; i++) {
        if ((i & 3) == 0)
            cpu_fprintf(f, "%%f%02d:", i);
        cpu_fprintf(f, " %016lf", env->fpr[i]);
        if ((i & 3) == 3)
            cpu_fprintf(f, "\n");
    }
#ifdef TARGET_SPARC64
    cpu_fprintf(f, "pstate: 0x%08x ccr: 0x%02x asi: 0x%02x tl: %d fprs: %d\n",
                env->pstate, GET_CCR(env), env->asi, env->tl, env->fprs);
    cpu_fprintf(f, "cansave: %d canrestore: %d otherwin: %d wstate %d "
                "cleanwin %d cwp %d\n",
                env->cansave, env->canrestore, env->otherwin, env->wstate,
                env->cleanwin, NWINDOWS - 1 - env->cwp);
#else
    cpu_fprintf(f, "psr: 0x%08x -> %c%c%c%c %c%c%c wim: 0x%08x\n",
                GET_PSR(env), GET_FLAG(PSR_ZERO, 'Z'), GET_FLAG(PSR_OVF, 'V'),
                GET_FLAG(PSR_NEG, 'N'), GET_FLAG(PSR_CARRY, 'C'),
                env->psrs?'S':'-', env->psrps?'P':'-',
                env->psret?'E':'-', env->wim);
#endif
    cpu_fprintf(f, "fsr: 0x%08x\n", GET_FSR32(env));
}

#ifdef TARGET_SPARC64
#if !defined(CONFIG_USER_ONLY)
#include "qemu-common.h"
#include "hw/irq.h"
#include "qemu-timer.h"
#endif

void helper_tick_set_count(void *opaque, uint64_t count)
{
#if !defined(CONFIG_USER_ONLY)
    ptimer_set_count(opaque, -count);
#endif
}

uint64_t helper_tick_get_count(void *opaque)
{
#if !defined(CONFIG_USER_ONLY)
    return -ptimer_get_count(opaque);
#else
    return 0;
#endif
}

void helper_tick_set_limit(void *opaque, uint64_t limit)
{
#if !defined(CONFIG_USER_ONLY)
    ptimer_set_limit(opaque, -limit, 0);
#endif
}
#endif