1*91f16700Schasinglulu /* 2*91f16700Schasinglulu * Copyright (c) 2021, Arm Limited and Contributors. All rights reserved. 3*91f16700Schasinglulu * 4*91f16700Schasinglulu * SPDX-License-Identifier: BSD-3-Clause 5*91f16700Schasinglulu */ 6*91f16700Schasinglulu 7*91f16700Schasinglulu #include <assert.h> 8*91f16700Schasinglulu 9*91f16700Schasinglulu #include <common/debug.h> 10*91f16700Schasinglulu 11*91f16700Schasinglulu #include "lib/xlat_mpu/xlat_mpu.h" 12*91f16700Schasinglulu #include <lib/xlat_tables/xlat_tables_defs.h> 13*91f16700Schasinglulu #include <lib/xlat_tables/xlat_tables_v2.h> 14*91f16700Schasinglulu #include "xlat_mpu_private.h" 15*91f16700Schasinglulu 16*91f16700Schasinglulu #include <fvp_r_arch_helpers.h> 17*91f16700Schasinglulu #include <platform_def.h> 18*91f16700Schasinglulu 19*91f16700Schasinglulu #warning "xlat_mpu library is currently experimental and its API may change in future." 20*91f16700Schasinglulu 21*91f16700Schasinglulu 22*91f16700Schasinglulu /* 23*91f16700Schasinglulu * MMU configuration register values for the active translation context. Used 24*91f16700Schasinglulu * from the MMU assembly helpers. 25*91f16700Schasinglulu */ 26*91f16700Schasinglulu uint64_t mmu_cfg_params[MMU_CFG_PARAM_MAX]; 27*91f16700Schasinglulu 28*91f16700Schasinglulu /* 29*91f16700Schasinglulu * Allocate and initialise the default translation context for the BL image 30*91f16700Schasinglulu * currently executing. 31*91f16700Schasinglulu */ 32*91f16700Schasinglulu REGISTER_XLAT_CONTEXT(tf, MAX_MMAP_REGIONS, MAX_XLAT_TABLES, 33*91f16700Schasinglulu PLAT_VIRT_ADDR_SPACE_SIZE, PLAT_PHY_ADDR_SPACE_SIZE); 34*91f16700Schasinglulu 35*91f16700Schasinglulu void mmap_add(const mmap_region_t *mm) 36*91f16700Schasinglulu { 37*91f16700Schasinglulu mmap_add_ctx(&tf_xlat_ctx, mm); 38*91f16700Schasinglulu } 39*91f16700Schasinglulu 40*91f16700Schasinglulu void __init init_xlat_tables(void) 41*91f16700Schasinglulu { 42*91f16700Schasinglulu assert(tf_xlat_ctx.xlat_regime == EL_REGIME_INVALID); 43*91f16700Schasinglulu 44*91f16700Schasinglulu unsigned int current_el = xlat_arch_current_el(); 45*91f16700Schasinglulu 46*91f16700Schasinglulu if (current_el == 1U) { 47*91f16700Schasinglulu tf_xlat_ctx.xlat_regime = EL1_EL0_REGIME; 48*91f16700Schasinglulu } else { 49*91f16700Schasinglulu assert(current_el == 2U); 50*91f16700Schasinglulu tf_xlat_ctx.xlat_regime = EL2_REGIME; 51*91f16700Schasinglulu } 52*91f16700Schasinglulu /* Note: If EL3 is supported in future v8-R64, add EL3 assignment */ 53*91f16700Schasinglulu init_xlat_tables_ctx(&tf_xlat_ctx); 54*91f16700Schasinglulu } 55*91f16700Schasinglulu 56*91f16700Schasinglulu int xlat_get_mem_attributes(uintptr_t base_va, uint32_t *attr) 57*91f16700Schasinglulu { 58*91f16700Schasinglulu return xlat_get_mem_attributes_ctx(&tf_xlat_ctx, base_va, attr); 59*91f16700Schasinglulu } 60*91f16700Schasinglulu 61*91f16700Schasinglulu void enable_mpu_el2(unsigned int flags) 62*91f16700Schasinglulu { 63*91f16700Schasinglulu /* EL2 is strictly MPU on v8-R64, so no need for setup_mpu_cfg() */ 64*91f16700Schasinglulu enable_mpu_direct_el2(flags); 65*91f16700Schasinglulu } 66