arm64 linux pgd_offset_k 代碼閱讀過程中的疑問記錄

start_kernel -> setup_arch -> early_fixmap_init -> pgd_offset_k     pgd_t *pgd;     unsigned long addr = FIXADDR_START; // 0xffff7ffffabfe000          pr_err("Test pgd_index(addr) is 0x%llx \n",pgd_in

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