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Diffstat (limited to 'src/mainboard/emulation/qemu-i440fx/bootmode.c')
-rw-r--r--src/mainboard/emulation/qemu-i440fx/bootmode.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/src/mainboard/emulation/qemu-i440fx/bootmode.c b/src/mainboard/emulation/qemu-i440fx/bootmode.c
new file mode 100644
index 0000000000..12990b2552
--- /dev/null
+++ b/src/mainboard/emulation/qemu-i440fx/bootmode.c
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <bootmode.h>
+#include <console/console.h>
+#include "fw_cfg.h"
+
+/*
+ * Enable recovery mode with fw_cfg option to qemu:
+ * -fw_cfg name=opt/cros/recovery,string=1
+ */
+int get_recovery_mode_switch(void)
+{
+ FWCfgFile f;
+
+ if (!fw_cfg_check_file(&f, "opt/cros/recovery")) {
+ uint8_t rec_mode;
+ if (f.size != 1) {
+ printk(BIOS_ERR, "opt/cros/recovery invalid size %d\n", f.size);
+ return 0;
+ }
+ fw_cfg_get(f.select, &rec_mode, f.size);
+ if (rec_mode == '1') {
+ printk(BIOS_INFO, "Recovery is enabled.\n");
+ return 1;
+ }
+ }
+
+ return 0;
+}