From 8c892070e94ca3131e0fe120544634877b8b133b Mon Sep 17 00:00:00 2001
From: Raul E Rangel <rrangel@chromium.org>
Date: Thu, 22 Jul 2021 12:40:26 -0600
Subject: [PATCH] lib/thread: Guard thread_run_until with ENV_RAMSTAGE

thread_run_until is a ramstage specific API. This change guards the API
by checking ENV_RAMSTAGE.

BUG=b:179699789
TEST=Boot guybrush to the OS

Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I4784942070fd352a48c349f3b65f5a299abf2800
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56529
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
---
 src/lib/thread.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/lib/thread.c b/src/lib/thread.c
index 4d06021ea8..3be2e92f5c 100644
--- a/src/lib/thread.c
+++ b/src/lib/thread.c
@@ -313,6 +313,10 @@ int thread_run_until(struct thread_handle *handle, enum cb_err (*func)(void *),
 	struct thread *t;
 	struct block_boot_state *bbs;
 
+	/* This is a ramstage specific API */
+	if (!ENV_RAMSTAGE)
+		dead_code();
+
 	current = current_thread();
 
 	if (!thread_can_yield(current)) {