plat/arm/css/sgi: Map flash used for mem_protect
The SGI platform defines the macro PLAT_ARM_MEM_PROT_ADDR which
indicates that the platform has mitigation for cold reboot attacks.
However, the flash memory used for the mem_protect region was not
mapped. This results in a crash when an OS calls PSCI MEM_PROTECT.
To fix this map the flash region used for mem_protect.
Change-Id: Ia494f924ecfe2ce835c045689ba8f942bf0941f4
Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
diff --git a/plat/arm/css/sgi/include/sgi_base_platform_def.h b/plat/arm/css/sgi/include/sgi_base_platform_def.h
index 14cdb7e..159084f 100644
--- a/plat/arm/css/sgi/include/sgi_base_platform_def.h
+++ b/plat/arm/css/sgi/include/sgi_base_platform_def.h
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2018-2020, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2018-2020, Arm Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -39,7 +39,7 @@
# define PLAT_SP_IMAGE_MAX_XLAT_TABLES 10
# else
# define PLAT_ARM_MMAP_ENTRIES (5 + ((CSS_SGI_CHIP_COUNT - 1) * 3))
-# define MAX_XLAT_TABLES (5 + ((CSS_SGI_CHIP_COUNT - 1) * 3))
+# define MAX_XLAT_TABLES (6 + ((CSS_SGI_CHIP_COUNT - 1) * 3))
# endif
#elif defined(IMAGE_BL32)
# define PLAT_ARM_MMAP_ENTRIES 8
diff --git a/plat/arm/css/sgi/sgi_plat.c b/plat/arm/css/sgi/sgi_plat.c
index a2117f6..39eb89e 100644
--- a/plat/arm/css/sgi/sgi_plat.c
+++ b/plat/arm/css/sgi/sgi_plat.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2018-2020, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2018-2020, Arm Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -43,6 +43,9 @@
const mmap_region_t plat_arm_mmap[] = {
ARM_MAP_SHARED_RAM,
SGI_MAP_FLASH0_RO,
+#ifdef PLAT_ARM_MEM_PROT_ADDR
+ ARM_V2M_MAP_MEM_PROTECT,
+#endif
CSS_SGI_MAP_DEVICE,
SOC_CSS_MAP_DEVICE,
ARM_MAP_NS_DRAM1,
@@ -63,6 +66,9 @@
ARM_MAP_SHARED_RAM,
V2M_MAP_IOFPGA,
CSS_SGI_MAP_DEVICE,
+#ifdef PLAT_ARM_MEM_PROT_ADDR
+ ARM_V2M_MAP_MEM_PROTECT,
+#endif
SOC_CSS_MAP_DEVICE,
#if SPM_MM
ARM_SPM_BUF_EL3_MMAP,