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https://github.com/ARM-software/arm-trusted-firmware.git
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0b64f4ef43
Added APIs to add and remove regions to the translation tables dynamically while the MMU is enabled. Only static regions are allowed to overlap other static ones (for backwards compatibility). A new private attribute (MT_DYNAMIC / MT_STATIC) has been added to flag each region as such. The dynamic mapping functionality can be enabled or disabled when compiling by setting the build option PLAT_XLAT_TABLES_DYNAMIC to 1 or 0. This can be done per-image. TLB maintenance code during dynamic table mapping and unmapping has also been added. Fixes ARM-software/tf-issues#310 Change-Id: I19e8992005c4292297a382824394490c5387aa3b Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
124 lines
3.9 KiB
C
124 lines
3.9 KiB
C
/*
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* Copyright (c) 2015-2017, 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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#ifndef __BOARD_ARM_DEF_H__
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#define __BOARD_ARM_DEF_H__
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#include <v2m_def.h>
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/*
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* Required platform porting definitions common to all ARM
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* development platforms
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*/
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/* Size of cacheable stacks */
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#if defined(IMAGE_BL1)
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#if TRUSTED_BOARD_BOOT
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# define PLATFORM_STACK_SIZE 0x1000
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#else
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# define PLATFORM_STACK_SIZE 0x440
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#endif
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#elif defined(IMAGE_BL2)
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# if TRUSTED_BOARD_BOOT
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# define PLATFORM_STACK_SIZE 0x1000
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# else
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# define PLATFORM_STACK_SIZE 0x400
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# endif
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#elif defined(IMAGE_BL2U)
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# define PLATFORM_STACK_SIZE 0x200
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#elif defined(IMAGE_BL31)
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# define PLATFORM_STACK_SIZE 0x400
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#elif defined(IMAGE_BL32)
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# define PLATFORM_STACK_SIZE 0x440
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#endif
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/*
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* The constants below are not optimised for memory usage. Platforms that wish
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* to optimise these constants should set `ARM_BOARD_OPTIMISE_MEM` to 1 and
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* provide there own values.
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*/
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#if !ARM_BOARD_OPTIMISE_MEM
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/*
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* PLAT_ARM_MMAP_ENTRIES depends on the number of entries in the
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* plat_arm_mmap array defined for each BL stage.
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*
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* Provide relatively optimised values for the runtime images (BL31 and BL32).
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* Optimisation is less important for the other, transient boot images so a
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* common, maximum value is used across these images.
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*
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* They are also used for the dynamically mapped regions in the images that
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* enable dynamic memory mapping.
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*/
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#if defined(IMAGE_BL31) || defined(IMAGE_BL32)
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# define PLAT_ARM_MMAP_ENTRIES 6
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# define MAX_XLAT_TABLES 4
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#else
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# define PLAT_ARM_MMAP_ENTRIES 10
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# define MAX_XLAT_TABLES 5
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#endif
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/*
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* PLAT_ARM_MAX_BL1_RW_SIZE is calculated using the current BL1 RW debug size
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* plus a little space for growth.
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*/
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#define PLAT_ARM_MAX_BL1_RW_SIZE 0xA000
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/*
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* PLAT_ARM_MAX_BL2_SIZE is calculated using the current BL2 debug size plus a
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* little space for growth.
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*/
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#if TRUSTED_BOARD_BOOT
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# define PLAT_ARM_MAX_BL2_SIZE 0x1D000
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#else
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# define PLAT_ARM_MAX_BL2_SIZE 0xF000
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#endif
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/*
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* PLAT_ARM_MAX_BL31_SIZE is calculated using the current BL31 debug size plus a
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* little space for growth.
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*/
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#define PLAT_ARM_MAX_BL31_SIZE 0x1D000
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#endif /* ARM_BOARD_OPTIMISE_MEM */
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#define MAX_IO_DEVICES 3
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#define MAX_IO_HANDLES 4
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#define PLAT_ARM_TRUSTED_SRAM_SIZE 0x00040000 /* 256 KB */
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#define PLAT_ARM_FIP_BASE V2M_FLASH0_BASE
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#define PLAT_ARM_FIP_MAX_SIZE V2M_FLASH0_SIZE
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#define PLAT_ARM_NVM_BASE V2M_FLASH0_BASE
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#define PLAT_ARM_NVM_SIZE V2M_FLASH0_SIZE
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#endif /* __BOARD_ARM_DEF_H__ */
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