* Copyright (c) 2009 Edgar E. Iglesias
* Copyright (c) 2009-2012 PetaLogix Qld Pty Ltd.
* Copyright (c) 2012 SUSE LINUX Products GmbH
+ * Copyright (c) 2009 Edgar E. Iglesias, Axis Communications AB.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
#include "cpu.h"
#include "qemu-common.h"
+#include "hw/qdev-properties.h"
#include "migration/vmstate.h"
+static void mb_cpu_set_pc(CPUState *cs, vaddr value)
+{
+ MicroBlazeCPU *cpu = MICROBLAZE_CPU(cs);
+
+ cpu->env.sregs[SR_PC] = value;
+}
+
+static bool mb_cpu_has_work(CPUState *cs)
+{
+ return cs->interrupt_request & (CPU_INTERRUPT_HARD | CPU_INTERRUPT_NMI);
+}
+
+#ifndef CONFIG_USER_ONLY
+static void microblaze_cpu_set_irq(void *opaque, int irq, int level)
+{
+ MicroBlazeCPU *cpu = opaque;
+ CPUState *cs = CPU(cpu);
+ int type = irq ? CPU_INTERRUPT_NMI : CPU_INTERRUPT_HARD;
+
+ if (level) {
+ cpu_interrupt(cs, type);
+ } else {
+ cpu_reset_interrupt(cs, type);
+ }
+}
+#endif
+
/* CPUClass::reset() */
static void mb_cpu_reset(CPUState *s)
{
MicroBlazeCPUClass *mcc = MICROBLAZE_CPU_GET_CLASS(cpu);
CPUMBState *env = &cpu->env;
- if (qemu_loglevel_mask(CPU_LOG_RESET)) {
- qemu_log("CPU Reset (CPU %d)\n", s->cpu_index);
- log_cpu_state(env, 0);
- }
-
mcc->parent_reset(s);
- memset(env, 0, offsetof(CPUMBState, breakpoints));
+ memset(env, 0, sizeof(CPUMBState));
env->res_addr = RES_ADDR_NONE;
- tlb_flush(env, 1);
+ tlb_flush(s, 1);
/* Disable stack protector. */
env->shr = ~0;
env->pvr.regs[10] = 0x0c000000; /* Default to spartan 3a dsp family. */
env->pvr.regs[11] = PVR11_USE_MMU | (16 << 17);
+ env->sregs[SR_PC] = cpu->base_vectors;
+
#if defined(CONFIG_USER_ONLY)
/* start in user mode with interrupts enabled. */
env->sregs[SR_MSR] = MSR_EE | MSR_IE | MSR_VM | MSR_UM;
#endif
}
+static void mb_cpu_realizefn(DeviceState *dev, Error **errp)
+{
+ CPUState *cs = CPU(dev);
+ MicroBlazeCPUClass *mcc = MICROBLAZE_CPU_GET_CLASS(dev);
+
+ cpu_reset(cs);
+ qemu_init_vcpu(cs);
+
+ mcc->parent_realize(dev, errp);
+}
+
static void mb_cpu_initfn(Object *obj)
{
+ CPUState *cs = CPU(obj);
MicroBlazeCPU *cpu = MICROBLAZE_CPU(obj);
CPUMBState *env = &cpu->env;
+ static bool tcg_initialized;
+ cs->env_ptr = env;
cpu_exec_init(env);
set_float_rounding_mode(float_round_nearest_even, &env->fp_status);
+
+#ifndef CONFIG_USER_ONLY
+ /* Inbound IRQ and FIR lines */
+ qdev_init_gpio_in(DEVICE(cpu), microblaze_cpu_set_irq, 2);
+#endif
+
+ if (tcg_enabled() && !tcg_initialized) {
+ tcg_initialized = true;
+ mb_tcg_init();
+ }
}
static const VMStateDescription vmstate_mb_cpu = {
.unmigratable = 1,
};
+static Property mb_properties[] = {
+ DEFINE_PROP_UINT32("xlnx.base-vectors", MicroBlazeCPU, base_vectors, 0),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
static void mb_cpu_class_init(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
CPUClass *cc = CPU_CLASS(oc);
MicroBlazeCPUClass *mcc = MICROBLAZE_CPU_CLASS(oc);
+ mcc->parent_realize = dc->realize;
+ dc->realize = mb_cpu_realizefn;
+
mcc->parent_reset = cc->reset;
cc->reset = mb_cpu_reset;
+ cc->has_work = mb_cpu_has_work;
+ cc->do_interrupt = mb_cpu_do_interrupt;
+ cc->dump_state = mb_cpu_dump_state;
+ cc->set_pc = mb_cpu_set_pc;
+ cc->gdb_read_register = mb_cpu_gdb_read_register;
+ cc->gdb_write_register = mb_cpu_gdb_write_register;
+#ifdef CONFIG_USER_ONLY
+ cc->handle_mmu_fault = mb_cpu_handle_mmu_fault;
+#else
+ cc->do_unassigned_access = mb_cpu_unassigned_access;
+ cc->get_phys_page_debug = mb_cpu_get_phys_page_debug;
+#endif
dc->vmsd = &vmstate_mb_cpu;
+ dc->props = mb_properties;
+ cc->gdb_num_core_regs = 32 + 5;
}
static const TypeInfo mb_cpu_type_info = {