diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c index 4055e63d0b040ad4b384221a2dcbec4e41fddfec..fec216f4fbc3854f11e6253607511c000b995134 100644 --- a/arch/x86/boot/compressed/eboot.c +++ b/arch/x86/boot/compressed/eboot.c @@ -643,14 +643,22 @@ static efi_status_t handle_ramdisks(efi_loaded_image_t *image, u64 size; size = initrds[j].size; - status = efi_call_phys3(fh->read, initrds[j].handle, - &size, addr); - if (status != EFI_SUCCESS) - goto free_initrd_total; + while (size) { + u64 chunksize; + if (size > EFI_READ_CHUNK_SIZE) + chunksize = EFI_READ_CHUNK_SIZE; + else + chunksize = size; + status = efi_call_phys3(fh->read, + initrds[j].handle, + &chunksize, addr); + if (status != EFI_SUCCESS) + goto free_initrd_total; + addr += chunksize; + size -= chunksize; + } efi_call_phys1(fh->close, initrds[j].handle); - - addr += size; } } diff --git a/arch/x86/boot/compressed/eboot.h b/arch/x86/boot/compressed/eboot.h index f66d023e91ef49ce84473d0a33db9a026e478c5e..39251663e65b3fb64404d3cb67299b33313818f1 100644 --- a/arch/x86/boot/compressed/eboot.h +++ b/arch/x86/boot/compressed/eboot.h @@ -12,6 +12,7 @@ #define DESC_TYPE_CODE_DATA (1 << 0) #define EFI_PAGE_SIZE (1UL << EFI_PAGE_SHIFT) +#define EFI_READ_CHUNK_SIZE (1024 * 1024) #define PIXEL_RGB_RESERVED_8BIT_PER_COLOR 0 #define PIXEL_BGR_RESERVED_8BIT_PER_COLOR 1