1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
|
/*
* QEMU HPPA CPU
*
* Copyright (c) 2016 Richard Henderson <rth@twiddle.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see
* <http://www.gnu.org/licenses/lgpl-2.1.html>
*/
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "qemu/qemu-print.h"
#include "cpu.h"
#include "qemu-common.h"
#include "exec/exec-all.h"
#include "fpu/softfloat.h"
static void hppa_cpu_set_pc(CPUState *cs, vaddr value)
{
HPPACPU *cpu = HPPA_CPU(cs);
cpu->env.iaoq_f = value;
cpu->env.iaoq_b = value + 4;
}
static void hppa_cpu_synchronize_from_tb(CPUState *cs, TranslationBlock *tb)
{
HPPACPU *cpu = HPPA_CPU(cs);
#ifdef CONFIG_USER_ONLY
cpu->env.iaoq_f = tb->pc;
cpu->env.iaoq_b = tb->cs_base;
#else
/* Recover the IAOQ values from the GVA + PRIV. */
uint32_t priv = (tb->flags >> TB_FLAG_PRIV_SHIFT) & 3;
target_ulong cs_base = tb->cs_base;
target_ulong iasq_f = cs_base & ~0xffffffffull;
int32_t diff = cs_base;
cpu->env.iasq_f = iasq_f;
cpu->env.iaoq_f = (tb->pc & ~iasq_f) + priv;
if (diff) {
cpu->env.iaoq_b = cpu->env.iaoq_f + diff;
}
#endif
cpu->env.psw_n = (tb->flags & PSW_N) != 0;
}
static bool hppa_cpu_has_work(CPUState *cs)
{
return cs->interrupt_request & CPU_INTERRUPT_HARD;
}
static void hppa_cpu_disas_set_info(CPUState *cs, disassemble_info *info)
{
info->mach = bfd_mach_hppa20;
info->print_insn = print_insn_hppa;
}
static void hppa_cpu_do_unaligned_access(CPUState *cs, vaddr addr,
MMUAccessType access_type,
int mmu_idx, uintptr_t retaddr)
{
HPPACPU *cpu = HPPA_CPU(cs);
CPUHPPAState *env = &cpu->env;
cs->exception_index = EXCP_UNALIGN;
if (env->psw & PSW_Q) {
/* ??? Needs tweaking for hppa64. */
env->cr[CR_IOR] = addr;
env->cr[CR_ISR] = addr >> 32;
}
cpu_loop_exit_restore(cs, retaddr);
}
static void hppa_cpu_realizefn(DeviceState *dev, Error **errp)
{
CPUState *cs = CPU(dev);
HPPACPUClass *acc = HPPA_CPU_GET_CLASS(dev);
Error *local_err = NULL;
cpu_exec_realizefn(cs, &local_err);
if (local_err != NULL) {
error_propagate(errp, local_err);
return;
}
qemu_init_vcpu(cs);
acc->parent_realize(dev, errp);
#ifndef CONFIG_USER_ONLY
{
HPPACPU *cpu = HPPA_CPU(cs);
cpu->alarm_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL,
hppa_cpu_alarm_timer, cpu);
}
#endif
}
static void hppa_cpu_list_entry(gpointer data, gpointer user_data)
{
ObjectClass *oc = data;
qemu_printf(" %s\n", object_class_get_name(oc));
}
void hppa_cpu_list(void)
{
GSList *list;
list = object_class_get_list_sorted(TYPE_HPPA_CPU, false);
qemu_printf("Available CPUs:\n");
g_slist_foreach(list, hppa_cpu_list_entry, NULL);
g_slist_free(list);
}
static void hppa_cpu_initfn(Object *obj)
{
CPUState *cs = CPU(obj);
HPPACPU *cpu = HPPA_CPU(obj);
CPUHPPAState *env = &cpu->env;
cs->env_ptr = env;
cs->exception_index = -1;
cpu_hppa_loaded_fr0(env);
cpu_hppa_put_psw(env, PSW_W);
}
static ObjectClass *hppa_cpu_class_by_name(const char *cpu_model)
{
return object_class_by_name(TYPE_HPPA_CPU);
}
static void hppa_cpu_class_init(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
CPUClass *cc = CPU_CLASS(oc);
HPPACPUClass *acc = HPPA_CPU_CLASS(oc);
device_class_set_parent_realize(dc, hppa_cpu_realizefn,
&acc->parent_realize);
cc->class_by_name = hppa_cpu_class_by_name;
cc->has_work = hppa_cpu_has_work;
cc->do_interrupt = hppa_cpu_do_interrupt;
cc->cpu_exec_interrupt = hppa_cpu_exec_interrupt;
cc->dump_state = hppa_cpu_dump_state;
cc->set_pc = hppa_cpu_set_pc;
cc->synchronize_from_tb = hppa_cpu_synchronize_from_tb;
cc->gdb_read_register = hppa_cpu_gdb_read_register;
cc->gdb_write_register = hppa_cpu_gdb_write_register;
#ifdef CONFIG_USER_ONLY
cc->handle_mmu_fault = hppa_cpu_handle_mmu_fault;
#else
cc->get_phys_page_debug = hppa_cpu_get_phys_page_debug;
dc->vmsd = &vmstate_hppa_cpu;
#endif
cc->do_unaligned_access = hppa_cpu_do_unaligned_access;
cc->disas_set_info = hppa_cpu_disas_set_info;
cc->tcg_initialize = hppa_translate_init;
cc->gdb_num_core_regs = 128;
}
static const TypeInfo hppa_cpu_type_info = {
.name = TYPE_HPPA_CPU,
.parent = TYPE_CPU,
.instance_size = sizeof(HPPACPU),
.instance_init = hppa_cpu_initfn,
.abstract = false,
.class_size = sizeof(HPPACPUClass),
.class_init = hppa_cpu_class_init,
};
static void hppa_cpu_register_types(void)
{
type_register_static(&hppa_cpu_type_info);
}
type_init(hppa_cpu_register_types)
|
