2 * Copyright (c) 2011, Max Filippov, Open Source and Linux Lab.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of the Open Source and Linux Lab nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 #include "qemu/osdep.h"
29 #include "qapi/error.h"
30 #include "sysemu/reset.h"
31 #include "sysemu/sysemu.h"
32 #include "hw/boards.h"
33 #include "hw/loader.h"
35 #include "exec/memory.h"
36 #include "qemu/error-report.h"
37 #include "xtensa_memory.h"
38 #include "xtensa_sim.h"
40 static uint64_t translate_phys_addr(void *opaque
, uint64_t addr
)
42 XtensaCPU
*cpu
= opaque
;
44 return cpu_get_phys_page_debug(CPU(cpu
), addr
);
47 static void sim_reset(void *opaque
)
49 XtensaCPU
*cpu
= opaque
;
54 XtensaCPU
*xtensa_sim_common_init(MachineState
*machine
)
56 XtensaCPU
*cpu
= NULL
;
57 CPUXtensaState
*env
= NULL
;
58 ram_addr_t ram_size
= machine
->ram_size
;
61 for (n
= 0; n
< machine
->smp
.cpus
; n
++) {
62 cpu
= XTENSA_CPU(cpu_create(machine
->cpu_type
));
66 qemu_register_reset(sim_reset
, cpu
);
67 /* Need MMU initialized prior to ELF loading,
68 * so that ELF gets loaded into virtual addresses
74 XtensaMemory sysram
= env
->config
->sysram
;
76 sysram
.location
[0].size
= ram_size
;
77 xtensa_create_memory_regions(&env
->config
->instrom
, "xtensa.instrom",
79 xtensa_create_memory_regions(&env
->config
->instram
, "xtensa.instram",
81 xtensa_create_memory_regions(&env
->config
->datarom
, "xtensa.datarom",
83 xtensa_create_memory_regions(&env
->config
->dataram
, "xtensa.dataram",
85 xtensa_create_memory_regions(&env
->config
->sysrom
, "xtensa.sysrom",
87 xtensa_create_memory_regions(&sysram
, "xtensa.sysram",
91 xtensa_sim_open_console(serial_hd(0));
96 void xtensa_sim_load_kernel(XtensaCPU
*cpu
, MachineState
*machine
)
98 const char *kernel_filename
= machine
->kernel_filename
;
99 #ifdef TARGET_WORDS_BIGENDIAN
100 int big_endian
= true;
102 int big_endian
= false;
105 if (kernel_filename
) {
107 int success
= load_elf(kernel_filename
, NULL
, translate_phys_addr
, cpu
,
108 &elf_entry
, NULL
, NULL
, NULL
, big_endian
,
112 cpu
->env
.pc
= elf_entry
;
117 static void xtensa_sim_init(MachineState
*machine
)
119 XtensaCPU
*cpu
= xtensa_sim_common_init(machine
);
121 xtensa_sim_load_kernel(cpu
, machine
);
124 static void xtensa_sim_machine_init(MachineClass
*mc
)
126 mc
->desc
= "sim machine (" XTENSA_DEFAULT_CPU_MODEL
")";
127 mc
->is_default
= true;
128 mc
->init
= xtensa_sim_init
;
131 mc
->default_cpu_type
= XTENSA_DEFAULT_CPU_TYPE
;
134 DEFINE_MACHINE("sim", xtensa_sim_machine_init
)