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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/loader.h"
26#include "hw/riscv/boot.h"
27#include "hw/boards.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;
42
43 if (!machine->firmware) {
44
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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")) {
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71
72 firmware_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS,
73 default_machine_firmware);
74 if (firmware_filename == NULL) {
75 error_report("Unable to load the default RISC-V firmware \"%s\"",
76 default_machine_firmware);
77 exit(1);
78 }
79 } else {
80 firmware_filename = machine->firmware;
81 }
82
83 if (strcmp(firmware_filename, "none")) {
84
85 riscv_load_firmware(firmware_filename, firmware_load_addr);
86 }
87
88 if (!strcmp(machine->firmware, "default")) {
89 g_free(firmware_filename);
90 }
91}
92
93target_ulong riscv_load_firmware(const char *firmware_filename,
94 hwaddr firmware_load_addr)
95{
96 uint64_t firmware_entry, firmware_start, firmware_end;
97
98 if (load_elf(firmware_filename, NULL, NULL, NULL, &firmware_entry,
99 &firmware_start, &firmware_end, 0, EM_RISCV, 1, 0) > 0) {
100 return firmware_entry;
101 }
102
103 if (load_image_targphys_as(firmware_filename, firmware_load_addr,
104 ram_size, NULL) > 0) {
105 return firmware_load_addr;
106 }
107
108 error_report("could not load firmware '%s'", firmware_filename);
109 exit(1);
110}
111
112target_ulong riscv_load_kernel(const char *kernel_filename)
113{
114 uint64_t kernel_entry, kernel_high;
115
116 if (load_elf(kernel_filename, NULL, NULL, NULL,
117 &kernel_entry, NULL, &kernel_high, 0, EM_RISCV, 1, 0) > 0) {
118 return kernel_entry;
119 }
120
121 if (load_uimage_as(kernel_filename, &kernel_entry, NULL, NULL,
122 NULL, NULL, NULL) > 0) {
123 return kernel_entry;
124 }
125
126 if (load_image_targphys_as(kernel_filename, KERNEL_BOOT_ADDRESS,
127 ram_size, NULL) > 0) {
128 return KERNEL_BOOT_ADDRESS;
129 }
130
131 error_report("could not load kernel '%s'", kernel_filename);
132 exit(1);
133}
134
135hwaddr riscv_load_initrd(const char *filename, uint64_t mem_size,
136 uint64_t kernel_entry, hwaddr *start)
137{
138 int size;
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151 *start = kernel_entry + MIN(mem_size / 2, 128 * MiB);
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153 size = load_ramdisk(filename, *start, mem_size - *start);
154 if (size == -1) {
155 size = load_image_targphys(filename, *start, mem_size - *start);
156 if (size == -1) {
157 error_report("could not load ramdisk '%s'", filename);
158 exit(1);
159 }
160 }
161
162 return *start + size;
163}
164