diff options
| author | Andre Przywara <[email protected]> | 2020-09-30 17:39:18 +0100 |
|---|---|---|
| committer | Tom Rini <[email protected]> | 2020-10-08 11:42:36 -0400 |
| commit | f5cb6c3081dfbd36dd0be9b9f4b42a6885b640b9 (patch) | |
| tree | 6f3f40e4e228f8698b1357e52fb14309022ea96d | |
| parent | f8df0560b6671285d6293986d58bdb968a49f209 (diff) | |
qemu-arm64: Enable POSITION_INDEPENDENT
Now that PIE works when U-Boot is started from ROM, let's enable
CONFIG_POSITION_INDEPENDENT, which allows to load U-Boot also via
ARM Trusted-Firmware's fip.bin to DRAM, without tweaking the
configuration.
To get a writable initial stack, we need to keep the fixed initial
stack pointer, which points to DRAM in our case.
Signed-off-by: Andre Przywara <[email protected]>
Reviewed-by: Stephen Warren <[email protected]>
| -rw-r--r-- | arch/arm/Kconfig | 1 | ||||
| -rw-r--r-- | configs/qemu_arm64_defconfig | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 0ecd0c67f35..a067a076769 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -22,6 +22,7 @@ config POSITION_INDEPENDENT config INIT_SP_RELATIVE bool "Specify the early stack pointer relative to the .bss section" + default n if ARCH_QEMU default y if POSITION_INDEPENDENT help U-Boot typically uses a hard-coded value for the stack pointer diff --git a/configs/qemu_arm64_defconfig b/configs/qemu_arm64_defconfig index 31ea2d342fc..4450e7ced42 100644 --- a/configs/qemu_arm64_defconfig +++ b/configs/qemu_arm64_defconfig @@ -1,6 +1,7 @@ CONFIG_ARM=y CONFIG_ARCH_QEMU=y CONFIG_NR_DRAM_BANKS=1 +CONFIG_POSITION_INDEPENDENT=y CONFIG_ENV_SIZE=0x40000 CONFIG_ENV_SECT_SIZE=0x40000 CONFIG_AHCI=y |