bootm: update image OS image size when decompressing

In bootm_load_os() the OS image is decompressed. In later stages of the
boot process we need the decompressed size of the image.

Update images->os.image_len after decompression.

Passing the correct size is necessary if we want to check loaded EFI
binararies for file truncation by comparing the loaded size to the header
field SizeOfImage.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/common/bootm.c b/common/bootm.c
index 247b600d9c66effac819d1af26f88fedbc3e6b29..b3377490b3ef2c25d72e25f3e8ca404b29afaf31 100644 (file)
--- a/common/bootm.c
+++ b/common/bootm.c
@@ -390,6 +390,8 @@ static int bootm_load_os(bootm_headers_t *images, int boot_progress)
                bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
                return err;
        }
+       /* We need the decompressed image size in the next steps */
+       images->os.image_len = load_end - load;
 
        flush_cache(flush_start, ALIGN(load_end, ARCH_DMA_MINALIGN) - flush_start);