You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
110 lines
3.1 KiB
110 lines
3.1 KiB
/*
|
|
* Copyright (c) 2017-2021, Arm Limited and Contributors. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
#ifndef XLAT_TABLES_PRIVATE_H
|
|
#define XLAT_TABLES_PRIVATE_H
|
|
|
|
#include <stdbool.h>
|
|
|
|
#include <platform_def.h>
|
|
|
|
#include <lib/xlat_tables/xlat_tables_defs.h>
|
|
|
|
#if PLAT_XLAT_TABLES_DYNAMIC
|
|
/*
|
|
* Private shifts and masks to access fields of an mmap attribute
|
|
*/
|
|
/* Dynamic or static */
|
|
#define MT_DYN_SHIFT U(31)
|
|
|
|
/*
|
|
* Memory mapping private attributes
|
|
*
|
|
* Private attributes not exposed in the public header.
|
|
*/
|
|
|
|
/*
|
|
* Regions mapped before the MMU can't be unmapped dynamically (they are
|
|
* static) and regions mapped with MMU enabled can be unmapped. This
|
|
* behaviour can't be overridden.
|
|
*
|
|
* Static regions can overlap each other, dynamic regions can't.
|
|
*/
|
|
#define MT_STATIC (U(0) << MT_DYN_SHIFT)
|
|
#define MT_DYNAMIC (U(1) << MT_DYN_SHIFT)
|
|
|
|
#endif /* PLAT_XLAT_TABLES_DYNAMIC */
|
|
|
|
extern uint64_t mmu_cfg_params[MMU_CFG_PARAM_MAX];
|
|
|
|
/* Determine the physical address space encoded in the 'attr' parameter. */
|
|
uint32_t xlat_arch_get_pas(uint32_t attr);
|
|
|
|
/*
|
|
* Return the execute-never mask that will prevent instruction fetch at the
|
|
* given translation regime.
|
|
*/
|
|
uint64_t xlat_arch_regime_get_xn_desc(int xlat_regime);
|
|
|
|
/*
|
|
* Invalidate all TLB entries that match the given virtual address. This
|
|
* operation applies to all PEs in the same Inner Shareable domain as the PE
|
|
* that executes this function. This functions must be called for every
|
|
* translation table entry that is modified. It only affects the specified
|
|
* translation regime.
|
|
*
|
|
* Note, however, that it is architecturally UNDEFINED to invalidate TLB entries
|
|
* pertaining to a higher exception level, e.g. invalidating EL3 entries from
|
|
* S-EL1.
|
|
*/
|
|
void xlat_arch_tlbi_va(uintptr_t va, int xlat_regime);
|
|
|
|
/*
|
|
* This function has to be called at the end of any code that uses the function
|
|
* xlat_arch_tlbi_va().
|
|
*/
|
|
void xlat_arch_tlbi_va_sync(void);
|
|
|
|
/* Print VA, PA, size and attributes of all regions in the mmap array. */
|
|
void xlat_mmap_print(const mmap_region_t *mmap);
|
|
|
|
/*
|
|
* Print the current state of the translation tables by reading them from
|
|
* memory.
|
|
*/
|
|
void xlat_tables_print(xlat_ctx_t *ctx);
|
|
|
|
/*
|
|
* Returns a block/page table descriptor for the given level and attributes.
|
|
*/
|
|
uint64_t xlat_desc(const xlat_ctx_t *ctx, uint32_t attr,
|
|
unsigned long long addr_pa, unsigned int level);
|
|
|
|
/*
|
|
* Architecture-specific initialization code.
|
|
*/
|
|
|
|
/* Returns the current Exception Level. The returned EL must be 1 or higher. */
|
|
unsigned int xlat_arch_current_el(void);
|
|
|
|
/*
|
|
* Return the maximum physical address supported by the hardware.
|
|
* This value depends on the execution state (AArch32/AArch64).
|
|
*/
|
|
unsigned long long xlat_arch_get_max_supported_pa(void);
|
|
|
|
/*
|
|
* Returns true if the MMU of the translation regime managed by the given
|
|
* xlat_ctx_t is enabled, false otherwise.
|
|
*/
|
|
bool is_mmu_enabled_ctx(const xlat_ctx_t *ctx);
|
|
|
|
/*
|
|
* Returns minimum virtual address space size supported by the architecture
|
|
*/
|
|
uintptr_t xlat_get_min_virt_addr_space_size(void);
|
|
|
|
#endif /* XLAT_TABLES_PRIVATE_H */
|
|
|