[Skiboot] [PATCH] core/fast-reboot: Add im-feeling-lucky option

[Suraj Jitindar Singh]

Fast reboot gets disabled for a number of reasons e.g. the availability
of nvlink. However this doesn't actually affect the ability to perform fast
reboot if no nvlink device is actually present.

Add a nvram option for fast-reset where if it's set to
"im-feeling-lucky" then perform the fast-reboot irrespective of if it's
previously been disabled.

Signed-off-by: Suraj Jitindar Singh <sjitindarsingh at gmail.com>
---
 core/fast-reboot.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/core/fast-reboot.c b/core/fast-reboot.c
index 22160b65..c4280149 100644
--- a/core/fast-reboot.c
+++ b/core/fast-reboot.c
@@ -132,7 +132,12 @@ void fast_reboot(void)
 		return;
 	}
 
-	if (fast_reboot_disabled) {
+	if (fast_reboot_disabled && nvram_query_eq("fast-reset",
+						   "im-feeling-lucky")) {
+		/* Do fast reboot even if it's been disabled */
+		prlog(PR_NOTICE, "RESET: Ignoring fast reboot disabled: %s\n",
+				fast_reboot_disabled);
+	} else if (fast_reboot_disabled) {
 		prlog(PR_NOTICE, "RESET: Fast reboot disabled: %s\n",
 		      fast_reboot_disabled);
 		opal_quiesce(QUIESCE_RESUME, -1);
-- 
2.13.6