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20#include "qemu/osdep.h"
21#include "qemu-common.h"
22#include "qemu/units.h"
23#include "qemu/error-report.h"
24#include "exec/cpu-defs.h"
25#include "hw/boards.h"
26#include "hw/loader.h"
27#include "hw/riscv/boot.h"
28#include "elf.h"
29#include "sysemu/qtest.h"
30
31#if defined(TARGET_RISCV32)
32# define KERNEL_BOOT_ADDRESS 0x80400000
33#else
34# define KERNEL_BOOT_ADDRESS 0x80200000
35#endif
36
37void riscv_find_and_load_firmware(MachineState *machine,
38 const char *default_machine_firmware,
39 hwaddr firmware_load_addr)
40{
41 char *firmware_filename = NULL;
42
43 if (!machine->firmware) {
44
45
46
47
48
49
50 if (!qtest_enabled()) {
51 warn_report("No -bios option specified. Not loading a firmware.");
52 warn_report("This default will change in a future QEMU release. " \
53 "Please use the -bios option to avoid breakages when "\
54 "this happens.");
55 warn_report("See QEMU's deprecation documentation for details.");
56 }
57 return;
58 }
59
60 if (!strcmp(machine->firmware, "default")) {
61
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72 firmware_filename = riscv_find_firmware(default_machine_firmware);
73 } else if (strcmp(machine->firmware, "none")) {
74 firmware_filename = riscv_find_firmware(machine->firmware);
75 }
76
77 if (firmware_filename) {
78
79 riscv_load_firmware(firmware_filename, firmware_load_addr);
80 g_free(firmware_filename);
81 }
82}
83
84char *riscv_find_firmware(const char *firmware_filename)
85{
86 char *filename;
87
88 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, firmware_filename);
89 if (filename == NULL) {
90 error_report("Unable to load the RISC-V firmware \"%s\"",
91 firmware_filename);
92 exit(1);
93 }
94
95 return filename;
96}
97
98target_ulong riscv_load_firmware(const char *firmware_filename,
99 hwaddr firmware_load_addr)
100{
101 uint64_t firmware_entry, firmware_start, firmware_end;
102
103 if (load_elf(firmware_filename, NULL, NULL, NULL, &firmware_entry,
104 &firmware_start, &firmware_end, 0, EM_RISCV, 1, 0) > 0) {
105 return firmware_entry;
106 }
107
108 if (load_image_targphys_as(firmware_filename, firmware_load_addr,
109 ram_size, NULL) > 0) {
110 return firmware_load_addr;
111 }
112
113 error_report("could not load firmware '%s'", firmware_filename);
114 exit(1);
115}
116
117target_ulong riscv_load_kernel(const char *kernel_filename, symbol_fn_t sym_cb)
118{
119 uint64_t kernel_entry, kernel_high;
120
121 if (load_elf_ram_sym(kernel_filename, NULL, NULL, NULL,
122 &kernel_entry, NULL, &kernel_high, 0,
123 EM_RISCV, 1, 0, NULL, true, sym_cb) > 0) {
124 return kernel_entry;
125 }
126
127 if (load_uimage_as(kernel_filename, &kernel_entry, NULL, NULL,
128 NULL, NULL, NULL) > 0) {
129 return kernel_entry;
130 }
131
132 if (load_image_targphys_as(kernel_filename, KERNEL_BOOT_ADDRESS,
133 ram_size, NULL) > 0) {
134 return KERNEL_BOOT_ADDRESS;
135 }
136
137 error_report("could not load kernel '%s'", kernel_filename);
138 exit(1);
139}
140
141hwaddr riscv_load_initrd(const char *filename, uint64_t mem_size,
142 uint64_t kernel_entry, hwaddr *start)
143{
144 int size;
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157 *start = kernel_entry + MIN(mem_size / 2, 128 * MiB);
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159 size = load_ramdisk(filename, *start, mem_size - *start);
160 if (size == -1) {
161 size = load_image_targphys(filename, *start, mem_size - *start);
162 if (size == -1) {
163 error_report("could not load ramdisk '%s'", filename);
164 exit(1);
165 }
166 }
167
168 return *start + size;
169}
170