diff options
author | Huacai Chen <chenhuacai@loongson.cn> | 2023-03-01 16:55:45 +0800 |
---|---|---|
committer | Ard Biesheuvel <ardb@kernel.org> | 2023-04-05 12:05:11 +0200 |
commit | 8364f6d000ede4185a82b1f2514543ed172d4b51 (patch) | |
tree | 3f4118ae05353534d8317a9303e7d1c3daf90f86 /drivers/firmware | |
parent | 197b6b60ae7bc51dd0814953c562833143b292aa (diff) |
efi/loongarch: Reintroduce efi_relocate_kernel() to relocate kernel
Since Linux-6.3, LoongArch supports PIE kernel now, so let's reintroduce
efi_relocate_kernel() to relocate the core kernel.
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Diffstat (limited to 'drivers/firmware')
-rw-r--r-- | drivers/firmware/efi/libstub/loongarch-stub.c | 24 |
1 files changed, 7 insertions, 17 deletions
diff --git a/drivers/firmware/efi/libstub/loongarch-stub.c b/drivers/firmware/efi/libstub/loongarch-stub.c index eee7ed43cdfb..72c71ae201f0 100644 --- a/drivers/firmware/efi/libstub/loongarch-stub.c +++ b/drivers/firmware/efi/libstub/loongarch-stub.c @@ -21,26 +21,16 @@ efi_status_t handle_kernel_image(unsigned long *image_addr, efi_loaded_image_t *image, efi_handle_t image_handle) { - int nr_pages = round_up(kernel_asize, EFI_ALLOC_ALIGN) / EFI_PAGE_SIZE; - efi_physical_addr_t kernel_addr = EFI_KIMG_PREFERRED_ADDRESS; efi_status_t status; + unsigned long kernel_addr = 0; - /* - * Allocate space for the kernel image at the preferred offset. This is - * the only location in memory from where we can execute the image, so - * no point in falling back to another allocation. - */ - status = efi_bs_call(allocate_pages, EFI_ALLOCATE_ADDRESS, - EFI_LOADER_DATA, nr_pages, &kernel_addr); - if (status != EFI_SUCCESS) - return status; - - *image_addr = EFI_KIMG_PREFERRED_ADDRESS; - *image_size = kernel_asize; + kernel_addr = (unsigned long)&kernel_offset - kernel_offset; + + status = efi_relocate_kernel(&kernel_addr, kernel_fsize, kernel_asize, + EFI_KIMG_PREFERRED_ADDRESS, efi_get_kimg_min_align(), 0x0); - memcpy((void *)EFI_KIMG_PREFERRED_ADDRESS, - (void *)&kernel_offset - kernel_offset, - kernel_fsize); + *image_addr = kernel_addr; + *image_size = kernel_asize; return status; } |