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vbe: Record which phases loaded using VBE

We expect VPL and SPL to load using VBE. Add a record of this so we can
check it in U-Boot proper.

Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass 1 year ago
parent
commit
d8b7c34f98
3 changed files with 20 additions and 0 deletions
  1. 10 0
      boot/vbe_simple_fw.c
  2. 1 0
      include/bloblist.h
  3. 9 0
      include/vbe.h

+ 10 - 0
boot/vbe_simple_fw.c

@@ -9,6 +9,7 @@
 #define LOG_CATEGORY LOGC_BOOT
 
 #include <common.h>
+#include <bloblist.h>
 #include <bootdev.h>
 #include <bootflow.h>
 #include <bootmeth.h>
@@ -154,11 +155,17 @@ static int simple_load_from_image(struct spl_image_info *spl_image,
 	struct udevice *meth, *bdev;
 	struct simple_priv *priv;
 	struct bootflow bflow;
+	struct vbe_handoff *handoff;
 	int ret;
 
 	if (spl_phase() != PHASE_VPL && spl_phase() != PHASE_SPL)
 		return -ENOENT;
 
+	ret = bloblist_ensure_size(BLOBLISTT_VBE, sizeof(struct vbe_handoff),
+				   0, (void **)&handoff);
+	if (ret)
+		return log_msg_ret("ro", ret);
+
 	vbe_find_first_device(&meth);
 	if (!meth)
 		return log_msg_ret("vd", -ENODEV);
@@ -190,6 +197,9 @@ static int simple_load_from_image(struct spl_image_info *spl_image,
 	/* this is not used from now on, so free it */
 	bootflow_free(&bflow);
 
+	/* Record that VBE was used in this phase */
+	handoff->phases |= 1 << spl_phase();
+
 	return 0;
 }
 SPL_LOAD_IMAGE_METHOD("vbe_simple", 5, BOOT_DEVICE_VBE,

+ 1 - 0
include/bloblist.h

@@ -112,6 +112,7 @@ enum bloblist_tag_t {
 	 */
 	BLOBLISTT_PROJECT_AREA = 0x8000,
 	BLOBLISTT_U_BOOT_SPL_HANDOFF = 0x8000, /* Hand-off info from SPL */
+	BLOBLISTT_VBE		= 0x8001,	/* VBE per-phase state */
 
 	/*
 	 * Vendor-specific tags are permitted here. Projects can be open source

+ 9 - 0
include/vbe.h

@@ -25,6 +25,15 @@ enum vbe_phase_t {
 	VBE_PHASE_OS,
 };
 
+/**
+ * struct vbe_handoff - information about VBE progress
+ *
+ * @phases: Indicates which phases used the VBE bootmeth (1 << PHASE_...)
+ */
+struct vbe_handoff {
+	u8 phases;
+};
+
 /**
  * vbe_phase() - get current VBE phase
  *