efi: Relocate FDT to 127MB instead of 128MB

Sandbox only has 128MB of memory so we cannot relocate the device tree up
to start at 128MB. Use 127MB instead, which should be safe.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Alexander Graf <agraf@suse.de>

diff --git a/cmd/bootefi.c b/cmd/bootefi.c
index b60c151fb4ac63b11508534a2d0a685d44e09194..c47974815959dd32ae942104a69a73bb60197f7b 100644 (file)
--- a/cmd/bootefi.c
+++ b/cmd/bootefi.c
@@ -158,8 +158,8 @@ static void *copy_fdt(void *fdt)
        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 */
-       new_fdt_addr = fdt_ram_start + (128 * 1024 * 1024) + fdt_size;
+       /* Safe fdt location is at 127MB */
+       new_fdt_addr = fdt_ram_start + (127 * 1024 * 1024) + fdt_size;
        if (efi_allocate_pages(EFI_ALLOCATE_MAX_ADDRESS,
                               EFI_RUNTIME_SERVICES_DATA, fdt_pages,
                               &new_fdt_addr) != EFI_SUCCESS) {