diff options
Diffstat (limited to 'src/arch/x86')
| -rw-r--r-- | src/arch/x86/include/arch/cpu.h | 5 | ||||
| -rw-r--r-- | src/arch/x86/postcar_loader.c | 9 |
2 files changed, 12 insertions, 2 deletions
diff --git a/src/arch/x86/include/arch/cpu.h b/src/arch/x86/include/arch/cpu.h index 75f1f439b8..38066c15a2 100644 --- a/src/arch/x86/include/arch/cpu.h +++ b/src/arch/x86/include/arch/cpu.h @@ -309,8 +309,9 @@ struct postcar_frame { }; /* - * Initialize postcar_frame object allocating stack size in cbmem - * with the provided size. Returns 0 on success, < 0 on error. + * Initialize postcar_frame object allocating stack from cbmem, + * with stack_size == 0, default 4 KiB is allocated. + * Returns 0 on success, < 0 on error. */ int postcar_frame_init(struct postcar_frame *pcf, size_t stack_size); diff --git a/src/arch/x86/postcar_loader.c b/src/arch/x86/postcar_loader.c index 732b767bf6..35e139fe1c 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", |