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sparc: move adhoc CPUSPARCState initialization to realize time

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SPARCCPU::env was initialized from previously set properties
(with help of sparc_cpu_parse_features) in cpu_sparc_register().
However there is not reason to keep it there as this task is
typically done at realize time. So move post properties
initialization into sparc_cpu_realizefn, which brings
cpu_sparc_init() closer to cpu_generic_init().

Backports commit 700549620b3ee15924f19b9eb79961655ce671c5 from qemu
This commit is contained in:
Igor Mammedov 2018-03-07 21:39:27 -05:00 committed by Lioncash
parent 0d7be1a913
commit 5a66d7f326
No known key found for this signature in database
GPG Key ID: 4E3C3CC1031BA9C7
1 changed files with 15 additions and 16 deletions
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31
qemu/target/sparc/cpu.c
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@ -99,7 +99,6 @@ static void sparc_cpu_parse_features(CPUState *cs, char *features,
static int cpu_sparc_register(struct uc_struct *uc, SPARCCPU *cpu, const char *cpu_model)
{
CPUSPARCState *env = &cpu->env;
char *s = g_strdup(cpu_model);
char *featurestr = strtok(s, ",");
Error *err = NULL;
@ -113,19 +112,6 @@ static int cpu_sparc_register(struct uc_struct *uc, SPARCCPU *cpu, const char *c
return -1;
}
env->version = env->def.iu_version;
env->fsr = env->def.fpu_version;
env->nwindows = env->def.nwindows;
#if !defined(TARGET_SPARC64)
env->mmuregs[0] |= env->def.mmu_version;
cpu_sparc_set_id(env, 0);
env->mxccregs[7] |= env->def.mxcc_version;
#else
env->mmu_version = env->def.mmu_version;
env->maxtl = env->def.maxtl;
env->version |= env->def.maxtl << 8;
env->version |= env->def.nwindows - 1;
#endif
return 0;
}
@ -849,16 +835,29 @@ static ObjectClass *sparc_cpu_class_by_name(struct uc_struct *uc, const char *cp
static int sparc_cpu_realizefn(struct uc_struct *uc, DeviceState *dev, Error **errp)
{
SPARCCPUClass *scc = SPARC_CPU_GET_CLASS(uc, dev);
#if defined(CONFIG_USER_ONLY)
SPARCCPU *cpu = SPARC_CPU(uc, dev);
SPARCCPUClass *scc = SPARC_CPU_GET_CLASS(uc, obj);
CPUSPARCState *env = &cpu->env;
#if defined(CONFIG_USER_ONLY)
if ((env->def.features & CPU_FEATURE_FLOAT)) {
env->def.features |= CPU_FEATURE_FLOAT128;
}
#endif
env->version = env->def.iu_version;
env->fsr = env->def.fpu_version;
env->nwindows = env->def.nwindows;
#if !defined(TARGET_SPARC64)
env->mmuregs[0] |= env->def.mmu_version;
cpu_sparc_set_id(env, 0);
env->mxccregs[7] |= env->def.mxcc_version;
#else
env->mmu_version = env->def.mmu_version;
env->maxtl = env->def.maxtl;
env->version |= env->def.maxtl << 8;
env->version |= env->def.nwindows - 1;
#endif
qemu_init_vcpu(CPU(dev));
scc->parent_realize(uc, dev, errp);