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Diffstat (limited to 'src/arch/x86/postcar_loader.c')
-rw-r--r--src/arch/x86/postcar_loader.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/arch/x86/postcar_loader.c b/src/arch/x86/postcar_loader.c
index 732b767bf6ac..35e139fe1c9d 100644
--- a/src/arch/x86/postcar_loader.c
+++ b/src/arch/x86/postcar_loader.c
@@ -48,6 +48,15 @@ int postcar_frame_init(struct postcar_frame *pcf, size_t stack_size)
{
void *stack;
+ /*
+ * Use default postcar stack size of 4 KiB. This value should
+ * not be decreased, because if mainboards use vboot, 1 KiB will
+ * not be enough anymore.
+ */
+
+ if (stack_size == 0)
+ stack_size = 4 * KiB;
+
stack = cbmem_add(CBMEM_ID_ROMSTAGE_RAM_STACK, stack_size);
if (stack == NULL) {
printk(BIOS_ERR, "Couldn't add %zd byte stack in cbmem.\n",