diff options
| -rw-r--r-- | cmd/bootefi.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/cmd/bootefi.c b/cmd/bootefi.c index a0fd1a3158..d0f2c032a2 100644 --- a/cmd/bootefi.c +++ b/cmd/bootefi.c @@ -148,8 +148,12 @@ static void *copy_fdt(void *fdt) fdt_ram_start = ram_start; } - /* Give us at least 4kb breathing room */ - fdt_size = ALIGN(fdt_size + 4096, EFI_PAGE_SIZE); + /* + * Give us at least 4KB of breathing room in case the device tree needs + * to be expanded later. Round up to the nearest EFI page boundary. + */ + fdt_size += 4096; + fdt_size = ALIGN(fdt_size + EFI_PAGE_SIZE - 1, EFI_PAGE_SIZE); fdt_pages = fdt_size >> EFI_PAGE_SHIFT; /* Safe fdt location is at 128MB */ |