From 18fa43f753b79cfc3cc5426a3ef50b04efbf6206 Mon Sep 17 00:00:00 2001
From: Nishant Sharma <nishant.sharma@arm.com>
Date: Tue, 19 Apr 2022 10:23:59 +0100
Subject: [PATCH] feat(sgi): enable fpregs context save and restore

This is required to prevent Nwd context corruption during StMM
execution.

Standalone MM uses OpenSSL for secure boot, which uses FP registers for
floating point calculations.

Signed-off-by: Nishant Sharma <nishant.sharma@arm.com>
Change-Id: I6ed11d4fa5d64c3089a24b66fd048a841c480792
---
 plat/arm/css/sgi/sgi-common.mk | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/plat/arm/css/sgi/sgi-common.mk b/plat/arm/css/sgi/sgi-common.mk
index f56fe3576..76c8025ba 100644
--- a/plat/arm/css/sgi/sgi-common.mk
+++ b/plat/arm/css/sgi/sgi-common.mk
@@ -23,6 +23,8 @@ CSS_SGI_PLATFORM_VARIANT	:=	0
 # Do not enable SVE
 ENABLE_SVE_FOR_NS		:=	0
 
+CTX_INCLUDE_FPREGS		:=	1
+
 INTERCONNECT_SOURCES	:=	${CSS_ENT_BASE}/sgi_interconnect.c
 
 PLAT_INCLUDES		+=	-I${CSS_ENT_BASE}/include