diff options
| author | Chen-Yu Tsai <wens@csie.org> | 2016-07-05 21:45:06 +0800 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2016-07-15 15:54:58 +0200 |
| commit | a5aa7ff33a942ce8ea38006fd5225a800827bb2c (patch) | |
| tree | 6f3580d752c60a439c1f7bd20f6046bb8155dc26 | |
| parent | afc1f65f504324cd5f87a8cb480bebeb0c61e4e0 (diff) | |
ARM: Add secure section for initialized data
The secure monitor may need to store global or static values within the
secure section of memory, such as target PC or CPU power status.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
| -rw-r--r-- | arch/arm/config.mk | 4 | ||||
| -rw-r--r-- | arch/arm/cpu/u-boot.lds | 9 | ||||
| -rw-r--r-- | arch/arm/include/asm/secure.h | 1 |
3 files changed, 10 insertions, 4 deletions
diff --git a/arch/arm/config.mk b/arch/arm/config.mk index 9a5a9747c48..8f8586295ef 100644 --- a/arch/arm/config.mk +++ b/arch/arm/config.mk @@ -120,8 +120,8 @@ endif ifdef CONFIG_ARM64 OBJCOPYFLAGS += -j .text -j .rodata -j .data -j .u_boot_list -j .rela.dyn else -OBJCOPYFLAGS += -j .text -j .secure_text -j .rodata -j .hash -j .data -j \ - .got -j .got.plt -j .u_boot_list -j .rel.dyn +OBJCOPYFLAGS += -j .text -j .secure_text -j .secure_data -j .rodata -j .hash \ + -j .data -j .got -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 5a65c27cfa7..36c9fd0bd01 100644 --- a/arch/arm/cpu/u-boot.lds +++ b/arch/arm/cpu/u-boot.lds @@ -69,12 +69,17 @@ SECTIONS *(._secure.text) } - .secure_stack ALIGN(ADDR(.secure_text) + SIZEOF(.secure_text), + .secure_data : AT(LOADADDR(.secure_text) + SIZEOF(.secure_text)) + { + *(._secure.data) + } + + .secure_stack ALIGN(ADDR(.secure_data) + SIZEOF(.secure_data), CONSTANT(COMMONPAGESIZE)) (NOLOAD) : #ifdef __ARMV7_PSCI_STACK_IN_RAM AT(ADDR(.secure_stack)) #else - AT(LOADADDR(.secure_text) + SIZEOF(.secure_text)) + AT(LOADADDR(.secure_data) + SIZEOF(.secure_data)) #endif { KEEP(*(.__secure_stack_start)) diff --git a/arch/arm/include/asm/secure.h b/arch/arm/include/asm/secure.h index 6d9088beb4d..5a403bc0f15 100644 --- a/arch/arm/include/asm/secure.h +++ b/arch/arm/include/asm/secure.h @@ -4,6 +4,7 @@ #include <config.h> #define __secure __attribute__ ((section ("._secure.text"))) +#define __secure_data __attribute__ ((section ("._secure.data"))) #ifdef CONFIG_ARMV7_SECURE_BASE /* |