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dd923601fd
Almost all the arm platform has switch to translation tables library v2 as default. Because qemu platform doesn't use arm_common.mk like other arm platforms, QEMU haven't switched to v2 yet. This patch adds all the necessary code for adding translation tables library v2 support on QEMU and use it as default. Fixes ARM-software/tf-issues#508 Signed-off-by: Fu Wei <fu.wei@linaro.org>
121 lines
3 KiB
C
121 lines
3 KiB
C
/*
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* Copyright (c) 2015-2016, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <arch_helpers.h>
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#include <bl_common.h>
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#include <platform_def.h>
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#include <arm_xlat_tables.h>
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#include "qemu_private.h"
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#define MAP_DEVICE0 MAP_REGION_FLAT(DEVICE0_BASE, \
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DEVICE0_SIZE, \
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MT_DEVICE | MT_RW | MT_SECURE)
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#ifdef DEVICE1_BASE
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#define MAP_DEVICE1 MAP_REGION_FLAT(DEVICE1_BASE, \
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DEVICE1_SIZE, \
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MT_DEVICE | MT_RW | MT_SECURE)
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#endif
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#ifdef DEVICE2_BASE
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#define MAP_DEVICE2 MAP_REGION_FLAT(DEVICE2_BASE, \
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DEVICE2_SIZE, \
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MT_DEVICE | MT_RO | MT_SECURE)
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#endif
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#define MAP_SHARED_RAM MAP_REGION_FLAT(SHARED_RAM_BASE, \
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SHARED_RAM_SIZE, \
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MT_DEVICE | MT_RW | MT_SECURE)
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#define MAP_BL32_MEM MAP_REGION_FLAT(BL32_MEM_BASE, BL32_MEM_SIZE, \
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MT_MEMORY | MT_RW | MT_SECURE)
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#define MAP_NS_DRAM0 MAP_REGION_FLAT(NS_DRAM0_BASE, NS_DRAM0_SIZE, \
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MT_MEMORY | MT_RW | MT_NS)
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#define MAP_FLASH0 MAP_REGION_FLAT(QEMU_FLASH0_BASE, QEMU_FLASH0_SIZE, \
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MT_MEMORY | MT_RO | MT_SECURE)
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/*
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* Table of regions for various BL stages to map using the MMU.
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* This doesn't include TZRAM as the 'mem_layout' argument passed to
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* arm_configure_mmu_elx() will give the available subset of that,
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*/
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#ifdef IMAGE_BL1
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static const mmap_region_t plat_qemu_mmap[] = {
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MAP_FLASH0,
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MAP_SHARED_RAM,
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MAP_DEVICE0,
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#ifdef MAP_DEVICE1
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MAP_DEVICE1,
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#endif
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#ifdef MAP_DEVICE2
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MAP_DEVICE2,
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#endif
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{0}
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};
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#endif
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#ifdef IMAGE_BL2
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static const mmap_region_t plat_qemu_mmap[] = {
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MAP_FLASH0,
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MAP_SHARED_RAM,
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MAP_DEVICE0,
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#ifdef MAP_DEVICE1
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MAP_DEVICE1,
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#endif
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#ifdef MAP_DEVICE2
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MAP_DEVICE2,
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#endif
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MAP_NS_DRAM0,
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MAP_BL32_MEM,
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{0}
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};
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#endif
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#ifdef IMAGE_BL31
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static const mmap_region_t plat_qemu_mmap[] = {
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MAP_SHARED_RAM,
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MAP_DEVICE0,
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#ifdef MAP_DEVICE1
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MAP_DEVICE1,
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#endif
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MAP_BL32_MEM,
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{0}
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};
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#endif
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/*******************************************************************************
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* Macro generating the code for the function setting up the pagetables as per
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* the platform memory map & initialize the mmu, for the given exception level
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******************************************************************************/
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#define DEFINE_CONFIGURE_MMU_EL(_el) \
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void qemu_configure_mmu_el##_el(unsigned long total_base, \
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unsigned long total_size, \
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unsigned long ro_start, \
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unsigned long ro_limit, \
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unsigned long coh_start, \
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unsigned long coh_limit) \
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{ \
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mmap_add_region(total_base, total_base, \
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total_size, \
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MT_MEMORY | MT_RW | MT_SECURE); \
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mmap_add_region(ro_start, ro_start, \
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ro_limit - ro_start, \
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MT_MEMORY | MT_RO | MT_SECURE); \
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mmap_add_region(coh_start, coh_start, \
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coh_limit - coh_start, \
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MT_DEVICE | MT_RW | MT_SECURE); \
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mmap_add(plat_qemu_mmap); \
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init_xlat_tables(); \
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\
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enable_mmu_el##_el(0); \
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}
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/* Define EL1 and EL3 variants of the function initialising the MMU */
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DEFINE_CONFIGURE_MMU_EL(1)
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DEFINE_CONFIGURE_MMU_EL(3)
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