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@xxxxxxxxxxx>
---
drivers/firmware/efi/libstub/loongarch-stub.c | 24 ++++++-------------
1 file 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;
}
--
2.39.1
