141 lines
3.8 KiB
C
141 lines
3.8 KiB
C
/*
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* Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* Neither the name of ARM nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <arch.h>
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#include <arch_helpers.h>
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#include <assert.h>
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#include <cassert.h>
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#include <common_def.h>
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#include <debug.h>
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#include <errno.h>
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#include <platform_def.h>
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#include <string.h>
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#include <types.h>
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#include <utils.h>
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#include <xlat_tables_v2.h>
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#ifdef AARCH32
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# include "aarch32/xlat_tables_arch.h"
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#else
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# include "aarch64/xlat_tables_arch.h"
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#endif
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#include "xlat_tables_private.h"
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/*
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* Private variables used by the TF
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*/
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static mmap_region_t tf_mmap[MAX_MMAP_REGIONS + 1];
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static uint64_t tf_xlat_tables[MAX_XLAT_TABLES][XLAT_TABLE_ENTRIES]
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__aligned(XLAT_TABLE_SIZE) __section("xlat_table");
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static uint64_t tf_base_xlat_table[NUM_BASE_LEVEL_ENTRIES]
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__aligned(NUM_BASE_LEVEL_ENTRIES * sizeof(uint64_t));
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static mmap_region_t tf_mmap[MAX_MMAP_REGIONS + 1];
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xlat_ctx_t tf_xlat_ctx = {
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.pa_max_address = PLAT_PHY_ADDR_SPACE_SIZE - 1,
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.va_max_address = PLAT_VIRT_ADDR_SPACE_SIZE - 1,
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.mmap = tf_mmap,
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.mmap_num = MAX_MMAP_REGIONS,
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.tables = tf_xlat_tables,
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.tables_num = MAX_XLAT_TABLES,
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.base_table = tf_base_xlat_table,
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.base_table_entries = NUM_BASE_LEVEL_ENTRIES,
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.max_pa = 0,
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.max_va = 0,
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.next_table = 0,
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.base_level = XLAT_TABLE_LEVEL_BASE,
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.initialized = 0
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};
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void mmap_add_region(unsigned long long base_pa, uintptr_t base_va,
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size_t size, unsigned int attr)
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{
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mmap_region_t mm = {
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.base_va = base_va,
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.base_pa = base_pa,
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.size = size,
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.attr = attr,
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};
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mmap_add_region_ctx(&tf_xlat_ctx, (mmap_region_t *)&mm);
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}
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void mmap_add(const mmap_region_t *mm)
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{
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while (mm->size) {
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mmap_add_region_ctx(&tf_xlat_ctx, (mmap_region_t *)mm);
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mm++;
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}
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}
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void init_xlat_tables(void)
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{
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assert(!is_mmu_enabled());
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assert(!tf_xlat_ctx.initialized);
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print_mmap(tf_xlat_ctx.mmap);
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init_xlation_table(&tf_xlat_ctx);
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xlat_tables_print(&tf_xlat_ctx);
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assert(tf_xlat_ctx.max_va <= PLAT_VIRT_ADDR_SPACE_SIZE - 1);
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assert(tf_xlat_ctx.max_pa <= PLAT_PHY_ADDR_SPACE_SIZE - 1);
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init_xlat_tables_arch(tf_xlat_ctx.max_pa);
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}
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#ifdef AARCH32
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void enable_mmu_secure(unsigned int flags)
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{
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enable_mmu_arch(flags, tf_xlat_ctx.base_table);
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}
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#else
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void enable_mmu_el1(unsigned int flags)
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{
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enable_mmu_arch(flags, tf_xlat_ctx.base_table);
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}
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void enable_mmu_el3(unsigned int flags)
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{
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enable_mmu_arch(flags, tf_xlat_ctx.base_table);
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}
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#endif /* AARCH32 */
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