From 34b9c07a3b644760159571ee99d0f7fc67b83a8d Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Fri, 23 Aug 2013 07:16:50 +0200 Subject: microblaze: Disable stack protection from bootloader Microblaze without MMU can use stack protection in bootloader and kernel should clear this setting ASAP. Signed-off-by: Michal Simek --- arch/microblaze/kernel/head.S | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch/microblaze/kernel/head.S') diff --git a/arch/microblaze/kernel/head.S b/arch/microblaze/kernel/head.S index 817b7eec95b6..b7fb0438458c 100644 --- a/arch/microblaze/kernel/head.S +++ b/arch/microblaze/kernel/head.S @@ -64,6 +64,10 @@ real_start: #endif mts rmsr, r0 +/* Disable stack protection from bootloader */ + mts rslr, r0 + addi r8, r0, 0xFFFFFFF + mts rshr, r8 /* * According to Xilinx, msrclr instruction behaves like 'mfs rX,rpc' * if the msrclr instruction is not enabled. We use this to detect -- cgit v1.2.3