bootstd: Provide a bootmeth method to obtain state info
Some bootmeths can provide information about what is available to boot.
For example, VBE simple provides access to the firmware state.
Add a new method for this, along with a sandbox test.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/boot/bootmeth-uclass.c b/boot/bootmeth-uclass.c
index b8ba4ec..1e276c0 100644
--- a/boot/bootmeth-uclass.c
+++ b/boot/bootmeth-uclass.c
@@ -20,6 +20,16 @@
DECLARE_GLOBAL_DATA_PTR;
+int bootmeth_get_state_desc(struct udevice *dev, char *buf, int maxsize)
+{
+ const struct bootmeth_ops *ops = bootmeth_get_ops(dev);
+
+ if (!ops->get_state_desc)
+ return -ENOSYS;
+
+ return ops->get_state_desc(dev, buf, maxsize);
+}
+
int bootmeth_check(struct udevice *dev, struct bootflow_iter *iter)
{
const struct bootmeth_ops *ops = bootmeth_get_ops(dev);