/*
* QEMU CPU model
*
- * Copyright (c) 2012 SUSE LINUX Products GmbH
+ * Copyright (c) 2012-2014 SUSE LINUX Products GmbH
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
#include "sysemu/kvm.h"
#include "qemu/notify.h"
#include "qemu/log.h"
+#include "qemu/error-report.h"
#include "sysemu/sysemu.h"
bool cpu_exists(int64_t id)
return false;
}
+CPUState *cpu_generic_init(const char *typename, const char *cpu_model)
+{
+ char *str, *name, *featurestr;
+ CPUState *cpu;
+ ObjectClass *oc;
+ CPUClass *cc;
+ Error *err = NULL;
+
+ str = g_strdup(cpu_model);
+ name = strtok(str, ",");
+
+ oc = cpu_class_by_name(typename, name);
+ if (oc == NULL) {
+ g_free(str);
+ return NULL;
+ }
+
+ cpu = CPU(object_new(object_class_get_name(oc)));
+ cc = CPU_GET_CLASS(cpu);
+
+ featurestr = strtok(NULL, ",");
+ cc->parse_features(cpu, featurestr, &err);
+ g_free(str);
+ if (err != NULL) {
+ goto out;
+ }
+
+ object_property_set_bool(OBJECT(cpu), true, "realized", &err);
+
+out:
+ if (err != NULL) {
+ error_report_err(err);
+ object_unref(OBJECT(cpu));
+ return NULL;
+ }
+
+ return cpu;
+}
+
bool cpu_paging_enabled(const CPUState *cpu)
{
CPUClass *cc = CPU_GET_CLASS(cpu);
{
CPUClass *cc = CPU_GET_CLASS(cpu);
- return cc->get_memory_mapping(cpu, list, errp);
+ cc->get_memory_mapping(cpu, list, errp);
}
static void cpu_common_get_memory_mapping(CPUState *cpu,
error_setg(errp, "Obtaining memory mappings is unsupported on this CPU.");
}
-/* CPU hot-plug notifiers */
-static NotifierList cpu_added_notifiers =
- NOTIFIER_LIST_INITIALIZER(cpu_add_notifiers);
-
-void qemu_register_cpu_added_notifier(Notifier *notifier)
-{
- notifier_list_add(&cpu_added_notifiers, notifier);
-}
-
void cpu_reset_interrupt(CPUState *cpu, int mask)
{
cpu->interrupt_request &= ~mask;
void cpu_exit(CPUState *cpu)
{
cpu->exit_request = 1;
+ /* Ensure cpu_exec will see the exit request after TCG has exited. */
+ smp_wmb();
cpu->tcg_exit_req = 1;
}
static int cpu_common_write_elf32_qemunote(WriteCoreDumpFunction f,
CPUState *cpu, void *opaque)
{
- return -1;
+ return 0;
}
int cpu_write_elf32_note(WriteCoreDumpFunction f, CPUState *cpu,
static int cpu_common_write_elf64_qemunote(WriteCoreDumpFunction f,
CPUState *cpu, void *opaque)
{
- return -1;
+ return 0;
}
int cpu_write_elf64_note(WriteCoreDumpFunction f, CPUState *cpu,
return 0;
}
+bool target_words_bigendian(void);
+static bool cpu_common_virtio_is_big_endian(CPUState *cpu)
+{
+ return target_words_bigendian();
+}
+
+static void cpu_common_noop(CPUState *cpu)
+{
+}
+
+static bool cpu_common_exec_interrupt(CPUState *cpu, int int_req)
+{
+ return false;
+}
void cpu_dump_state(CPUState *cpu, FILE *f, fprintf_function cpu_fprintf,
int flags)
log_cpu_state(cpu, cc->reset_dump_flags);
}
- cpu->exit_request = 0;
cpu->interrupt_request = 0;
cpu->current_tb = NULL;
cpu->halted = 0;
+ cpu->mem_io_pc = 0;
+ cpu->mem_io_vaddr = 0;
+ cpu->icount_extra = 0;
+ cpu->icount_decr.u32 = 0;
+ cpu->can_do_io = 1;
+ cpu->exception_index = -1;
+ cpu->crash_occurred = false;
+ memset(cpu->tb_jmp_cache, 0, TB_JMP_CACHE_SIZE * sizeof(void *));
+}
+
+static bool cpu_common_has_work(CPUState *cs)
+{
+ return false;
}
ObjectClass *cpu_class_by_name(const char *typename, const char *cpu_model)
return NULL;
}
+static void cpu_common_parse_features(CPUState *cpu, char *features,
+ Error **errp)
+{
+ char *featurestr; /* Single "key=value" string being parsed */
+ char *val;
+ Error *err = NULL;
+
+ featurestr = features ? strtok(features, ",") : NULL;
+
+ while (featurestr) {
+ val = strchr(featurestr, '=');
+ if (val) {
+ *val = 0;
+ val++;
+ object_property_parse(OBJECT(cpu), val, featurestr, &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+ } else {
+ error_setg(errp, "Expected key=value format, found %s.",
+ featurestr);
+ return;
+ }
+ featurestr = strtok(NULL, ",");
+ }
+}
+
static void cpu_common_realizefn(DeviceState *dev, Error **errp)
{
CPUState *cpu = CPU(dev);
if (dev->hotplugged) {
cpu_synchronize_post_init(cpu);
- notifier_list_notify(&cpu_added_notifiers, dev);
cpu_resume(cpu);
}
}
CPUState *cpu = CPU(obj);
CPUClass *cc = CPU_GET_CLASS(obj);
+ cpu->cpu_index = -1;
cpu->gdb_num_regs = cpu->gdb_num_g_regs = cc->gdb_num_core_regs;
+ qemu_mutex_init(&cpu->work_mutex);
+ QTAILQ_INIT(&cpu->breakpoints);
+ QTAILQ_INIT(&cpu->watchpoints);
+}
+
+static void cpu_common_finalize(Object *obj)
+{
+ cpu_exec_exit(CPU(obj));
}
static int64_t cpu_common_get_arch_id(CPUState *cpu)
CPUClass *k = CPU_CLASS(klass);
k->class_by_name = cpu_common_class_by_name;
+ k->parse_features = cpu_common_parse_features;
k->reset = cpu_common_reset;
k->get_arch_id = cpu_common_get_arch_id;
+ k->has_work = cpu_common_has_work;
k->get_paging_enabled = cpu_common_get_paging_enabled;
k->get_memory_mapping = cpu_common_get_memory_mapping;
k->write_elf32_qemunote = cpu_common_write_elf32_qemunote;
k->write_elf64_note = cpu_common_write_elf64_note;
k->gdb_read_register = cpu_common_gdb_read_register;
k->gdb_write_register = cpu_common_gdb_write_register;
+ k->virtio_is_big_endian = cpu_common_virtio_is_big_endian;
+ k->debug_excp_handler = cpu_common_noop;
+ k->cpu_exec_enter = cpu_common_noop;
+ k->cpu_exec_exit = cpu_common_noop;
+ k->cpu_exec_interrupt = cpu_common_exec_interrupt;
dc->realize = cpu_common_realizefn;
- dc->no_user = 1;
+ /*
+ * Reason: CPUs still need special care by board code: wiring up
+ * IRQs, adding reset handlers, halting non-first CPUs, ...
+ */
+ dc->cannot_instantiate_with_device_add_yet = true;
}
static const TypeInfo cpu_type_info = {
.parent = TYPE_DEVICE,
.instance_size = sizeof(CPUState),
.instance_init = cpu_common_initfn,
+ .instance_finalize = cpu_common_finalize,
.abstract = true,
.class_size = sizeof(CPUClass),
.class_init = cpu_class_init,
projects / qemu.git / blobdiff