diff options
Diffstat (limited to 'qemu/target-s390x/cpu.c')
| -rw-r--r-- | qemu/target-s390x/cpu.c | 119 |
1 files changed, 113 insertions, 6 deletions
diff --git a/qemu/target-s390x/cpu.c b/qemu/target-s390x/cpu.c index c3e21b445..4bfff341d 100644 --- a/qemu/target-s390x/cpu.c +++ b/qemu/target-s390x/cpu.c @@ -23,14 +23,20 @@ * GNU GPL, version 2 or (at your option) any later version. */ +#include "qemu/osdep.h" +#include "qapi/error.h" #include "cpu.h" #include "qemu-common.h" +#include "qemu/cutils.h" #include "qemu/timer.h" #include "qemu/error-report.h" #include "hw/hw.h" #include "trace.h" +#include "qapi/visitor.h" #ifndef CONFIG_USER_ONLY #include "sysemu/arch_init.h" +#include "sysemu/sysemu.h" +#include "hw/s390x/sclp.h" #endif #define CR0_RESET 0xE0UL @@ -184,11 +190,49 @@ static void s390_cpu_machine_reset_cb(void *opaque) } #endif +static void s390_cpu_disas_set_info(CPUState *cpu, disassemble_info *info) +{ + info->mach = bfd_mach_s390_64; + info->print_insn = print_insn_s390; +} + static void s390_cpu_realizefn(DeviceState *dev, Error **errp) { CPUState *cs = CPU(dev); S390CPUClass *scc = S390_CPU_GET_CLASS(dev); + S390CPU *cpu = S390_CPU(dev); + CPUS390XState *env = &cpu->env; + Error *err = NULL; + +#if !defined(CONFIG_USER_ONLY) + if (cpu->id >= max_cpus) { + error_setg(&err, "Unable to add CPU: %" PRIi64 + ", max allowed: %d", cpu->id, max_cpus - 1); + goto out; + } +#endif + if (cpu_exists(cpu->id)) { + error_setg(&err, "Unable to add CPU: %" PRIi64 + ", it already exists", cpu->id); + goto out; + } + if (cpu->id != scc->next_cpu_id) { + error_setg(&err, "Unable to add CPU: %" PRIi64 + ", The next available id is %" PRIi64, cpu->id, + scc->next_cpu_id); + goto out; + } + cpu_exec_init(cs, &err); + if (err != NULL) { + goto out; + } + scc->next_cpu_id++; + +#if !defined(CONFIG_USER_ONLY) + qemu_register_reset(s390_cpu_machine_reset_cb, cpu); +#endif + env->cpu_num = cpu->id; s390_cpu_gdb_init(cs); qemu_init_vcpu(cs); #if !defined(CONFIG_USER_ONLY) @@ -197,7 +241,55 @@ static void s390_cpu_realizefn(DeviceState *dev, Error **errp) cpu_reset(cs); #endif - scc->parent_realize(dev, errp); + scc->parent_realize(dev, &err); + +#if !defined(CONFIG_USER_ONLY) + if (dev->hotplugged) { + raise_irq_cpu_hotplug(); + } +#endif + +out: + error_propagate(errp, err); +} + +static void s390x_cpu_get_id(Object *obj, Visitor *v, const char *name, + void *opaque, Error **errp) +{ + S390CPU *cpu = S390_CPU(obj); + int64_t value = cpu->id; + + visit_type_int(v, name, &value, errp); +} + +static void s390x_cpu_set_id(Object *obj, Visitor *v, const char *name, + void *opaque, Error **errp) +{ + S390CPU *cpu = S390_CPU(obj); + DeviceState *dev = DEVICE(obj); + const int64_t min = 0; + const int64_t max = UINT32_MAX; + Error *err = NULL; + int64_t value; + + if (dev->realized) { + error_setg(errp, "Attempt to set property '%s' on '%s' after " + "it was realized", name, object_get_typename(obj)); + return; + } + + visit_type_int(v, name, &value, &err); + if (err) { + error_propagate(errp, err); + return; + } + if (value < min || value > max) { + error_setg(errp, "Property %s.%s doesn't take value %" PRId64 + " (minimum: %" PRId64 ", maximum: %" PRId64 ")" , + object_get_typename(obj), name, value, min, max); + return; + } + cpu->id = value; } static void s390_cpu_initfn(Object *obj) @@ -206,15 +298,16 @@ static void s390_cpu_initfn(Object *obj) S390CPU *cpu = S390_CPU(obj); CPUS390XState *env = &cpu->env; static bool inited; - static int cpu_num = 0; #if !defined(CONFIG_USER_ONLY) struct tm tm; #endif cs->env_ptr = env; - cpu_exec_init(cs, &error_abort); + cs->halted = 1; + cs->exception_index = EXCP_HLT; + object_property_add(OBJECT(cpu), "id", "int64_t", s390x_cpu_get_id, + s390x_cpu_set_id, NULL, NULL, NULL); #if !defined(CONFIG_USER_ONLY) - qemu_register_reset(s390_cpu_machine_reset_cb, cpu); qemu_get_timedate(&tm, 0); env->tod_offset = TOD_UNIX_EPOCH + (time2tod(mktimegm(&tm)) * 1000000000ULL); @@ -223,7 +316,6 @@ static void s390_cpu_initfn(Object *obj) env->cpu_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, s390x_cpu_timer, cpu); s390_cpu_set_state(CPU_STATE_STOPPED, cpu); #endif - env->cpu_num = cpu_num++; if (tcg_enabled() && !inited) { inited = true; @@ -319,12 +411,18 @@ unsigned int s390_cpu_set_state(uint8_t cpu_state, S390CPU *cpu) } #endif +static gchar *s390_gdb_arch_name(CPUState *cs) +{ + return g_strdup("s390:64-bit"); +} + static void s390_cpu_class_init(ObjectClass *oc, void *data) { S390CPUClass *scc = S390_CPU_CLASS(oc); CPUClass *cc = CPU_CLASS(scc); DeviceClass *dc = DEVICE_CLASS(oc); + scc->next_cpu_id = 0; scc->parent_realize = dc->realize; dc->realize = s390_cpu_realizefn; @@ -347,12 +445,21 @@ static void s390_cpu_class_init(ObjectClass *oc, void *data) cc->get_phys_page_debug = s390_cpu_get_phys_page_debug; cc->vmsd = &vmstate_s390_cpu; cc->write_elf64_note = s390_cpu_write_elf64_note; - cc->write_elf64_qemunote = s390_cpu_write_elf64_qemunote; cc->cpu_exec_interrupt = s390_cpu_exec_interrupt; cc->debug_excp_handler = s390x_cpu_debug_excp_handler; #endif + cc->disas_set_info = s390_cpu_disas_set_info; + cc->gdb_num_core_regs = S390_NUM_CORE_REGS; cc->gdb_core_xml_file = "s390x-core64.xml"; + cc->gdb_arch_name = s390_gdb_arch_name; + + /* + * Reason: s390_cpu_realizefn() calls cpu_exec_init(), which saves + * the object in cpus -> dangling pointer after final + * object_unref(). + */ + dc->cannot_destroy_with_object_finalize_yet = true; } static const TypeInfo s390_cpu_type_info = { |