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feat: add initramfs loading support for all architectures #105

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YZYY95K wants to merge 4 commits into from
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feat: add initramfs loading support for all architectures #105

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6910857
feat: add initramfs loading support for all architectures
YZYY95K Jul 3, 2026
fb09db6
fix: clang-format style for initramfs loading code
YZYY95K Jul 3, 2026
6770b73
fix: apply clang-format to initramfs loading code
YZYY95K Jul 3, 2026
8721452
fix: join if-condition to one line for clang-format-14
YZYY95K Jul 3, 2026
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19 changes: 19 additions & 0 deletions tools/hvisor.c
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Original file line number Diff line number Diff line change
Expand Up @@ -857,6 +857,25 @@ static int zone_start_from_json(const char *json_config_path,
#ifndef X86_64
config->dtb_size = load_image_to_memory(dtb_filepath_json->valuestring,
config->dtb_load_paddr);

// Load initramfs if configured (architecture-independent)
const cJSON *const initramfs_filepath_json =
SAFE_CJSON_GET_OBJECT_ITEM(root, "initramfs_filepath");
const cJSON *const initramfs_load_paddr_json =
SAFE_CJSON_GET_OBJECT_ITEM(root, "initramfs_load_paddr");
if (initramfs_filepath_json != NULL && initramfs_load_paddr_json != NULL) {
uintptr_t initramfs_load_paddr;
if (parse_json_address(initramfs_load_paddr_json,
&initramfs_load_paddr) != 0) {
log_error("Failed to parse initramfs_load_paddr");
goto err_out;
}
__u64 initramfs_size = load_image_to_memory(
initramfs_filepath_json->valuestring, initramfs_load_paddr);
log_info("Loaded initramfs (%s) to 0x%" PRIxPTR ", size: %llu bytes",
initramfs_filepath_json->valuestring, initramfs_load_paddr,
initramfs_size);
}
#endif

log_info("Kernel size: %llu, DTB size: %llu", config->kernel_size,
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