ARM: zImage: the page table memory must be considered before relocation
For correctness, the initial page table located right before the
decompressed kernel should be considered when determining if relocation
is required.
Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
index 53dd5da..d1fd1cf 100644
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -216,9 +216,10 @@
* r9 = size of decompressed image
* r10 = end of this image, including bss/stack/malloc space if non XIP
* We basically want:
- * r4 >= r10 -> OK
+ * r4 - 16k page directory >= r10 -> OK
* r4 + image length <= current position (pc) -> OK
*/
+ add r10, r10, #16384
cmp r4, r10
bhs wont_overwrite
add r10, r4, r9