1ead384d9SHuacai Chen // SPDX-License-Identifier: GPL-2.0
2ead384d9SHuacai Chen /*
3ead384d9SHuacai Chen * Author: Yun Liu <liuyun@loongson.cn>
4ead384d9SHuacai Chen * Huacai Chen <chenhuacai@loongson.cn>
5ead384d9SHuacai Chen * Copyright (C) 2020-2022 Loongson Technology Corporation Limited
6ead384d9SHuacai Chen */
7ead384d9SHuacai Chen
8ead384d9SHuacai Chen #include <asm/efi.h>
9ead384d9SHuacai Chen #include <asm/addrspace.h>
10ead384d9SHuacai Chen #include "efistub.h"
11*eae6e7dbSWang Yao #include "loongarch-stub.h"
12ead384d9SHuacai Chen
13ead384d9SHuacai Chen extern int kernel_asize;
14ead384d9SHuacai Chen extern int kernel_fsize;
15d729b554SArd Biesheuvel extern int kernel_entry;
16ead384d9SHuacai Chen
handle_kernel_image(unsigned long * image_addr,unsigned long * image_size,unsigned long * reserve_addr,unsigned long * reserve_size,efi_loaded_image_t * image,efi_handle_t image_handle)17ead384d9SHuacai Chen efi_status_t handle_kernel_image(unsigned long *image_addr,
18ead384d9SHuacai Chen unsigned long *image_size,
19ead384d9SHuacai Chen unsigned long *reserve_addr,
20ead384d9SHuacai Chen unsigned long *reserve_size,
21ead384d9SHuacai Chen efi_loaded_image_t *image,
22ead384d9SHuacai Chen efi_handle_t image_handle)
23ead384d9SHuacai Chen {
24ead384d9SHuacai Chen efi_status_t status;
258364f6d0SHuacai Chen unsigned long kernel_addr = 0;
26ead384d9SHuacai Chen
27*eae6e7dbSWang Yao kernel_addr = (unsigned long)image->image_base;
28ead384d9SHuacai Chen
298364f6d0SHuacai Chen status = efi_relocate_kernel(&kernel_addr, kernel_fsize, kernel_asize,
308364f6d0SHuacai Chen EFI_KIMG_PREFERRED_ADDRESS, efi_get_kimg_min_align(), 0x0);
318364f6d0SHuacai Chen
328364f6d0SHuacai Chen *image_addr = kernel_addr;
33ead384d9SHuacai Chen *image_size = kernel_asize;
34ead384d9SHuacai Chen
35ead384d9SHuacai Chen return status;
36ead384d9SHuacai Chen }
37ead384d9SHuacai Chen
kernel_entry_address(unsigned long kernel_addr,efi_loaded_image_t * image)38*eae6e7dbSWang Yao unsigned long kernel_entry_address(unsigned long kernel_addr,
39*eae6e7dbSWang Yao efi_loaded_image_t *image)
400efb61c8SArd Biesheuvel {
41*eae6e7dbSWang Yao unsigned long base = (unsigned long)image->image_base;
420efb61c8SArd Biesheuvel
436e567410SWang Yao return (unsigned long)&kernel_entry - base + kernel_addr;
440efb61c8SArd Biesheuvel }
45