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ARM: HYP/non-sec: add separate section for secure code

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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>
This commit is contained in:
Marc Zyngier 2014-07-12 14:24:02 +01:00 committed by Albert ARIBAUD
parent b726d22da9
commit bf433afd60
3 changed files with 33 additions and 1 deletions
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2
arch/arm/config.mk
View File

@ -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

30
arch/arm/cpu/u-boot.lds
View File

@ -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*))) }

2
arch/arm/lib/sections.c
View File

@ -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")));