arm-trusted-firmware/plat/arm/board/fvp/fvp_security.c
Federico Recanati e80354212f fix(fvp): extend memory map to include all DRAM memory regions
Currently only the lowest 2 DRAM region were configured in the
TrustZone Controller, but the platform supports 6 regions spanning the
whole address space.
Configuring all of them to allow tests to access memory also in those
higher memory regions.

FVP memory map:
https://developer.arm.com/documentation/100964/1116/Base-Platform/Base---memory/Base-Platform-memory-map
Note that last row is wrong, describing a non-existing 56bit address,
all region labels should be shifted upward.
Issue has been reported and next release will be correct.

Change-Id: I695fe8e24aff67d75e74635ba32a133342289eb4
Signed-off-by: Federico Recanati <federico.recanati@arm.com>
2022-02-16 20:22:16 +01:00

43 lines
1.2 KiB
C

/*
* Copyright (c) 2014-2022, Arm Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <plat/arm/common/arm_config.h>
#include <plat/arm/common/plat_arm.h>
#include <platform_def.h>
/*
* We assume that all security programming is done by the primary core.
*/
void plat_arm_security_setup(void)
{
/*
* The Base FVP has a TrustZone address space controller, the Foundation
* FVP does not. Trying to program the device on the foundation FVP will
* cause an abort.
*
* If the platform had additional peripheral specific security
* configurations, those would be configured here.
*/
const arm_tzc_regions_info_t fvp_tzc_regions[] = {
ARM_TZC_REGIONS_DEF,
#if !SPM_MM && !ENABLE_RME
{FVP_DRAM3_BASE, FVP_DRAM3_END,
ARM_TZC_NS_DRAM_S_ACCESS, PLAT_ARM_TZC_NS_DEV_ACCESS},
{FVP_DRAM4_BASE, FVP_DRAM4_END,
ARM_TZC_NS_DRAM_S_ACCESS, PLAT_ARM_TZC_NS_DEV_ACCESS},
{FVP_DRAM5_BASE, FVP_DRAM5_END,
ARM_TZC_NS_DRAM_S_ACCESS, PLAT_ARM_TZC_NS_DEV_ACCESS},
{FVP_DRAM6_BASE, FVP_DRAM6_END,
ARM_TZC_NS_DRAM_S_ACCESS, PLAT_ARM_TZC_NS_DEV_ACCESS},
#endif
{0}
};
if ((get_arm_config()->flags & ARM_CONFIG_HAS_TZC) != 0U)
arm_tzc400_setup(PLAT_ARM_TZC_BASE, fvp_tzc_regions);
}