efi: Relocate FDT to 127MB instead of 128MB
authorSimon Glass <sjg@chromium.org>
Wed, 8 Aug 2018 09:54:29 +0000 (03:54 -0600)
committerAlexander Graf <agraf@suse.de>
Sun, 23 Sep 2018 19:55:28 +0000 (21:55 +0200)
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>
cmd/bootefi.c

index b60c151fb4ac63b11508534a2d0a685d44e09194..c47974815959dd32ae942104a69a73bb60197f7b 100644 (file)
@@ -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) {