mb/emulation/qemu-i440fx|q35: Fix stack size
Current implementation works by luck as DCACHE area is actually RAM and
stack can grow and use that RAM outside of the area.
* Set DCACHE_BSP_STACK_SIZE to 0x4000.
* Add an assert to make sure it is set to a sane value on all platforms.
Change-Id: I71f9d74d89e4129cdc4a850acc4fc1ac90e5f628
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/29611
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/emulation/qemu-q35/Kconfig b/src/mainboard/emulation/qemu-q35/Kconfig
index 4394530..3be034a 100644
--- a/src/mainboard/emulation/qemu-q35/Kconfig
+++ b/src/mainboard/emulation/qemu-q35/Kconfig
@@ -49,4 +49,8 @@
hex
default 0x4000
+config DCACHE_BSP_STACK_SIZE
+ hex
+ default 0x4000
+
endif # BOARD_EMULATION_QEMU_X86_Q35