[coreboot-gerrit] Patch set updated for coreboot: libpayload: Add comment about ARM64 exception stack

[Stefan Reinauer (stefan.reinauer@coreboot.org)]

Stefan Reinauer (stefan.reinauer at coreboot.org) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/14075

-gerrit

commit 8494c87f16da4ff73460f1e0d2758607738e338a
Author: Stefan Reinauer <stefan.reinauer at coreboot.org>
Date:   Sat Mar 12 16:36:57 2016 -0800

    libpayload: Add comment about ARM64 exception stack
    
    Change-Id: I8b74cbf6bdde32c90ad0510e14e899711269e57f
    Signed-off-by: Stefan Reinauer <stefan.reinauer at coreboot.org>
---
 payloads/libpayload/arch/arm64/libpayload.ldscript | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/payloads/libpayload/arch/arm64/libpayload.ldscript b/payloads/libpayload/arch/arm64/libpayload.ldscript
index 0cb88cf..5c807ce 100644
--- a/payloads/libpayload/arch/arm64/libpayload.ldscript
+++ b/payloads/libpayload/arch/arm64/libpayload.ldscript
@@ -78,6 +78,10 @@ SECTIONS
 		. = ALIGN(16);
 		_stack = .;
 
+		/* Exception stack. Having a separate exception stack
+		 * allows us to have later stages running in non-EL3 levels.
+		 */
+
 		_exc_estack = .;
 		. += CONFIG_LP_STACK_SIZE;
 		. = ALIGN(16);