4 * Copyright (c) 2009 Edgar E. Iglesias
5 * Copyright (c) 2009-2012 PetaLogix Qld Pty Ltd.
6 * Copyright (c) 2012 SUSE LINUX Products GmbH
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, see
20 * <http://www.gnu.org/licenses/lgpl-2.1.html>
24 #include "qemu-common.h"
25 #include "hw/qdev-properties.h"
26 #include "migration/vmstate.h"
29 static void mb_cpu_set_pc(CPUState *cs, vaddr value)
31 MicroBlazeCPU *cpu = MICROBLAZE_CPU(cs);
33 cpu->env.sregs[SR_PC] = value;
36 /* CPUClass::reset() */
37 static void mb_cpu_reset(CPUState *s)
39 MicroBlazeCPU *cpu = MICROBLAZE_CPU(s);
40 MicroBlazeCPUClass *mcc = MICROBLAZE_CPU_GET_CLASS(cpu);
41 CPUMBState *env = &cpu->env;
45 memset(env, 0, offsetof(CPUMBState, breakpoints));
46 env->res_addr = RES_ADDR_NONE;
49 /* Disable stack protector. */
52 env->pvr.regs[0] = PVR0_PVR_FULL_MASK \
53 | PVR0_USE_BARREL_MASK \
55 | PVR0_USE_HW_MUL_MASK \
57 | PVR0_USE_ICACHE_MASK \
58 | PVR0_USE_DCACHE_MASK \
61 env->pvr.regs[2] = PVR2_D_OPB_MASK \
65 | PVR2_USE_MSR_INSTR \
66 | PVR2_USE_PCMP_INSTR \
67 | PVR2_USE_BARREL_MASK \
69 | PVR2_USE_HW_MUL_MASK \
70 | PVR2_USE_MUL64_MASK \
72 | PVR2_USE_FPU2_MASK \
75 env->pvr.regs[10] = 0x0c000000; /* Default to spartan 3a dsp family. */
76 env->pvr.regs[11] = PVR11_USE_MMU | (16 << 17);
78 #if defined(CONFIG_USER_ONLY)
79 /* start in user mode with interrupts enabled. */
80 env->sregs[SR_MSR] = MSR_EE | MSR_IE | MSR_VM | MSR_UM;
81 env->pvr.regs[10] = 0x0c000000; /* Spartan 3a dsp. */
83 env->sregs[SR_MSR] = 0;
86 env->mmu.c_mmu_tlb_access = 3;
87 env->mmu.c_mmu_zones = 16;
91 static void mb_cpu_realizefn(DeviceState *dev, Error **errp)
93 CPUState *cs = CPU(dev);
94 MicroBlazeCPUClass *mcc = MICROBLAZE_CPU_GET_CLASS(dev);
99 mcc->parent_realize(dev, errp);
102 static void mb_cpu_initfn(Object *obj)
104 CPUState *cs = CPU(obj);
105 MicroBlazeCPU *cpu = MICROBLAZE_CPU(obj);
106 CPUMBState *env = &cpu->env;
107 static bool tcg_initialized;
112 set_float_rounding_mode(float_round_nearest_even, &env->fp_status);
114 if (tcg_enabled() && !tcg_initialized) {
115 tcg_initialized = true;
120 static const VMStateDescription vmstate_mb_cpu = {
125 static Property mb_properties[] = {
126 DEFINE_PROP_UINT32("xlnx.base-vectors", MicroBlazeCPU, base_vectors, 0),
127 DEFINE_PROP_END_OF_LIST(),
130 static void mb_cpu_class_init(ObjectClass *oc, void *data)
132 DeviceClass *dc = DEVICE_CLASS(oc);
133 CPUClass *cc = CPU_CLASS(oc);
134 MicroBlazeCPUClass *mcc = MICROBLAZE_CPU_CLASS(oc);
136 mcc->parent_realize = dc->realize;
137 dc->realize = mb_cpu_realizefn;
139 mcc->parent_reset = cc->reset;
140 cc->reset = mb_cpu_reset;
142 cc->do_interrupt = mb_cpu_do_interrupt;
143 cc->dump_state = mb_cpu_dump_state;
144 cc->set_pc = mb_cpu_set_pc;
145 cc->gdb_read_register = mb_cpu_gdb_read_register;
146 cc->gdb_write_register = mb_cpu_gdb_write_register;
147 #ifndef CONFIG_USER_ONLY
148 cc->do_unassigned_access = mb_cpu_unassigned_access;
149 cc->get_phys_page_debug = mb_cpu_get_phys_page_debug;
151 dc->vmsd = &vmstate_mb_cpu;
152 dc->props = mb_properties;
153 cc->gdb_num_core_regs = 32 + 5;
156 static const TypeInfo mb_cpu_type_info = {
157 .name = TYPE_MICROBLAZE_CPU,
159 .instance_size = sizeof(MicroBlazeCPU),
160 .instance_init = mb_cpu_initfn,
161 .class_size = sizeof(MicroBlazeCPUClass),
162 .class_init = mb_cpu_class_init,
165 static void mb_cpu_register_types(void)
167 type_register_static(&mb_cpu_type_info);
170 type_init(mb_cpu_register_types)