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| author | Marc Zyngier <marc.zyngier@arm.com> | 2014-07-12 14:24:02 +0100 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2014-07-28 17:07:23 +0200 |
| commit | bf433afd60ce2ccd1bec3cf14150323be8272ac3 (patch) | |
| tree | 1dd1eb0cd86852ac01e6ca5b39978a1358c123b5 | |
| parent | b726d22da9aed61462e36aa722fa4e6fd0aec9f1 (diff) | |
| download | u-boot-imx-bf433afd60ce2ccd1bec3cf14150323be8272ac3.zip u-boot-imx-bf433afd60ce2ccd1bec3cf14150323be8272ac3.tar.gz u-boot-imx-bf433afd60ce2ccd1bec3cf14150323be8272ac3.tar.bz2 | |
ARM: HYP/non-sec: add separate section for secure code
In anticipation of refactoring the HYP/non-secure code to run
from secure RAM, add a new linker section that will contain that
code.
Nothing is using it just yet.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
| -rw-r--r-- | arch/arm/config.mk | 2 | ||||
| -rw-r--r-- | arch/arm/cpu/u-boot.lds | 30 | ||||
| -rw-r--r-- | arch/arm/lib/sections.c | 2 |
3 files changed, 33 insertions, 1 deletions
diff --git a/arch/arm/config.mk b/arch/arm/config.mk index 5fa1825..c3b8289 100644 --- a/arch/arm/config.mk +++ b/arch/arm/config.mk @@ -113,7 +113,7 @@ endif ifdef CONFIG_ARM64 OBJCOPYFLAGS += -j .text -j .rodata -j .data -j .u_boot_list -j .rela.dyn else -OBJCOPYFLAGS += -j .text -j .rodata -j .hash -j .data -j .got.plt -j .u_boot_list -j .rel.dyn +OBJCOPYFLAGS += -j .text -j .secure_text -j .rodata -j .hash -j .data -j .got.plt -j .u_boot_list -j .rel.dyn endif ifdef CONFIG_OF_EMBED diff --git a/arch/arm/cpu/u-boot.lds b/arch/arm/cpu/u-boot.lds index a7728e0..7336162 100644 --- a/arch/arm/cpu/u-boot.lds +++ b/arch/arm/cpu/u-boot.lds @@ -7,6 +7,8 @@ * SPDX-License-Identifier: GPL-2.0+ */ +#include <config.h> + OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm") OUTPUT_ARCH(arm) ENTRY(_start) @@ -23,6 +25,34 @@ SECTIONS *(.text*) } +#if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_ARMV7_VIRT) || defined(CONFIG_ARMV7_PSCI) + +#ifndef CONFIG_ARMV7_SECURE_BASE +#define CONFIG_ARMV7_SECURE_BASE +#endif + + .__secure_start : { + . = ALIGN(0x1000); + *(.__secure_start) + } + + .secure_text CONFIG_ARMV7_SECURE_BASE : + AT(ADDR(.__secure_start) + SIZEOF(.__secure_start)) + { + *(._secure.text) + } + + . = LOADADDR(.__secure_start) + + SIZEOF(.__secure_start) + + SIZEOF(.secure_text); + + __secure_end_lma = .; + .__secure_end : AT(__secure_end_lma) { + *(.__secure_end) + LONG(0x1d1071c); /* Must output something to reset LMA */ + } +#endif + . = ALIGN(4); .rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) } diff --git a/arch/arm/lib/sections.c b/arch/arm/lib/sections.c index 5b30bcb..a1205c3 100644 --- a/arch/arm/lib/sections.c +++ b/arch/arm/lib/sections.c @@ -25,4 +25,6 @@ char __image_copy_start[0] __attribute__((section(".__image_copy_start"))); char __image_copy_end[0] __attribute__((section(".__image_copy_end"))); char __rel_dyn_start[0] __attribute__((section(".__rel_dyn_start"))); char __rel_dyn_end[0] __attribute__((section(".__rel_dyn_end"))); +char __secure_start[0] __attribute__((section(".__secure_start"))); +char __secure_end[0] __attribute__((section(".__secure_end"))); char _end[0] __attribute__((section(".__end"))); |