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