mirror of
https://github.com/qemu/qemu.git
synced 2025-10-30 01:47:31 +00:00
0f9668e0c1
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20220323155743.1585078-33-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
116 lines
3.8 KiB
C
116 lines
3.8 KiB
C
/*
|
|
* AVR loader helpers
|
|
*
|
|
* Copyright (c) 2019-2020 Philippe Mathieu-Daudé
|
|
*
|
|
* This work is licensed under the terms of the GNU GPLv2 or later.
|
|
* See the COPYING file in the top-level directory.
|
|
* SPDX-License-Identifier: GPL-2.0-or-later
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "qemu/datadir.h"
|
|
#include "hw/loader.h"
|
|
#include "elf.h"
|
|
#include "boot.h"
|
|
#include "qemu/error-report.h"
|
|
|
|
static const char *avr_elf_e_flags_to_cpu_type(uint32_t flags)
|
|
{
|
|
switch (flags & EF_AVR_MACH) {
|
|
case bfd_mach_avr1:
|
|
return AVR_CPU_TYPE_NAME("avr1");
|
|
case bfd_mach_avr2:
|
|
return AVR_CPU_TYPE_NAME("avr2");
|
|
case bfd_mach_avr25:
|
|
return AVR_CPU_TYPE_NAME("avr25");
|
|
case bfd_mach_avr3:
|
|
return AVR_CPU_TYPE_NAME("avr3");
|
|
case bfd_mach_avr31:
|
|
return AVR_CPU_TYPE_NAME("avr31");
|
|
case bfd_mach_avr35:
|
|
return AVR_CPU_TYPE_NAME("avr35");
|
|
case bfd_mach_avr4:
|
|
return AVR_CPU_TYPE_NAME("avr4");
|
|
case bfd_mach_avr5:
|
|
return AVR_CPU_TYPE_NAME("avr5");
|
|
case bfd_mach_avr51:
|
|
return AVR_CPU_TYPE_NAME("avr51");
|
|
case bfd_mach_avr6:
|
|
return AVR_CPU_TYPE_NAME("avr6");
|
|
case bfd_mach_avrtiny:
|
|
return AVR_CPU_TYPE_NAME("avrtiny");
|
|
case bfd_mach_avrxmega2:
|
|
return AVR_CPU_TYPE_NAME("xmega2");
|
|
case bfd_mach_avrxmega3:
|
|
return AVR_CPU_TYPE_NAME("xmega3");
|
|
case bfd_mach_avrxmega4:
|
|
return AVR_CPU_TYPE_NAME("xmega4");
|
|
case bfd_mach_avrxmega5:
|
|
return AVR_CPU_TYPE_NAME("xmega5");
|
|
case bfd_mach_avrxmega6:
|
|
return AVR_CPU_TYPE_NAME("xmega6");
|
|
case bfd_mach_avrxmega7:
|
|
return AVR_CPU_TYPE_NAME("xmega7");
|
|
default:
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
bool avr_load_firmware(AVRCPU *cpu, MachineState *ms,
|
|
MemoryRegion *program_mr, const char *firmware)
|
|
{
|
|
g_autofree char *filename = NULL;
|
|
int bytes_loaded;
|
|
uint64_t entry;
|
|
uint32_t e_flags;
|
|
|
|
filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, firmware);
|
|
if (filename == NULL) {
|
|
error_report("Unable to find %s", firmware);
|
|
return false;
|
|
}
|
|
|
|
bytes_loaded = load_elf_ram_sym(filename,
|
|
NULL, NULL, NULL,
|
|
&entry, NULL, NULL,
|
|
&e_flags, 0, EM_AVR, 0, 0,
|
|
NULL, true, NULL);
|
|
if (bytes_loaded >= 0) {
|
|
/* If ELF file is provided, determine CPU type reading ELF e_flags. */
|
|
const char *elf_cpu = avr_elf_e_flags_to_cpu_type(e_flags);
|
|
const char *mcu_cpu_type = object_get_typename(OBJECT(cpu));
|
|
int cpu_len = strlen(mcu_cpu_type) - strlen(AVR_CPU_TYPE_SUFFIX);
|
|
|
|
if (entry) {
|
|
error_report("BIOS entry_point must be 0x0000 "
|
|
"(ELF image '%s' has entry_point 0x%04" PRIx64 ")",
|
|
firmware, entry);
|
|
return false;
|
|
}
|
|
if (!elf_cpu) {
|
|
warn_report("Could not determine CPU type for ELF image '%s', "
|
|
"assuming '%.*s' CPU",
|
|
firmware, cpu_len, mcu_cpu_type);
|
|
return true;
|
|
}
|
|
if (strcmp(elf_cpu, mcu_cpu_type)) {
|
|
error_report("Current machine: %s with '%.*s' CPU",
|
|
MACHINE_GET_CLASS(ms)->desc, cpu_len, mcu_cpu_type);
|
|
error_report("ELF image '%s' is for '%.*s' CPU",
|
|
firmware,
|
|
(int)(strlen(elf_cpu) - strlen(AVR_CPU_TYPE_SUFFIX)),
|
|
elf_cpu);
|
|
return false;
|
|
}
|
|
} else {
|
|
bytes_loaded = load_image_mr(filename, program_mr);
|
|
}
|
|
if (bytes_loaded < 0) {
|
|
error_report("Unable to load firmware image %s as ELF or raw binary",
|
|
firmware);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|