1 files changed, 116 insertions, 0 deletions
diff --git a/cmd/vbe.c b/cmd/vbe.c
new file mode 100644
index 00000000000..186f6e6860d
--- /dev/null
+++ b/cmd/vbe.c
@@ -0,0 +1,116 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Verified Boot for Embedded (VBE) command
+ *
+ * Copyright 2022 Google LLC
+ * Written by Simon Glass <sjg@chromium.org>
+ */
+
+#include <bloblist.h>
+#include <bootmeth.h>
+#include <bootstd.h>
+#include <command.h>
+#include <spl.h>
+#include <vbe.h>
+
+static int do_vbe_list(struct cmd_tbl *cmdtp, int flag, int argc,
+		       char *const argv[])
+{
+	vbe_list();
+
+	return 0;
+}
+
+static int do_vbe_select(struct cmd_tbl *cmdtp, int flag, int argc,
+			 char *const argv[])
+{
+	struct bootstd_priv *std;
+	struct udevice *dev;
+	int ret;
+
+	ret = bootstd_get_priv(&std);
+	if (ret)
+		return CMD_RET_FAILURE;
+	if (argc < 2) {
+		std->vbe_bootmeth = NULL;
+		return 0;
+	}
+	if (vbe_find_by_any(argv[1], &dev))
+		return CMD_RET_FAILURE;
+
+	std->vbe_bootmeth = dev;
+
+	return 0;
+}
+
+static int do_vbe_info(struct cmd_tbl *cmdtp, int flag, int argc,
+		       char *const argv[])
+{
+	struct bootstd_priv *std;
+	char buf[256];
+	int ret, len;
+
+	ret = bootstd_get_priv(&std);
+	if (ret)
+		return CMD_RET_FAILURE;
+	if (!std->vbe_bootmeth) {
+		printf("No VBE bootmeth selected\n");
+		return CMD_RET_FAILURE;
+	}
+	ret = bootmeth_get_state_desc(std->vbe_bootmeth, buf, sizeof(buf));
+	if (ret) {
+		printf("Failed (err=%d)\n", ret);
+		return CMD_RET_FAILURE;
+	}
+	len = strnlen(buf, sizeof(buf));
+	if (len >= sizeof(buf)) {
+		printf("Buffer overflow\n");
+		return CMD_RET_FAILURE;
+	}
+
+	puts(buf);
+	if (buf[len] != '\n')
+		putc('\n');
+
+	return 0;
+}
+
+static int do_vbe_state(struct cmd_tbl *cmdtp, int flag, int argc,
+			char *const argv[])
+{
+	struct vbe_handoff *handoff = NULL;
+	int i;
+
+	if (IS_ENABLED(CONFIG_BLOBLIST)) {
+		handoff = bloblist_find(BLOBLISTT_VBE,
+					sizeof(struct vbe_handoff));
+	}
+	if (!handoff) {
+		printf("No VBE state\n");
+		return CMD_RET_FAILURE;
+	}
+
+	printf("Phases:");
+	for (i = PHASE_NONE; i < PHASE_COUNT; i++) {
+		if (handoff->phases & (1 << i))
+			printf(" %s", xpl_name(i));
+
+	}
+	if (!handoff->phases)
+		printf(" (none)");
+	printf("\n");
+
+	return 0;
+}
+
+U_BOOT_LONGHELP(vbe,
+	"list   - list VBE bootmeths\n"
+	"vbe select - select a VBE bootmeth by sequence or name\n"
+	"vbe info   - show information about a VBE bootmeth\n"
+	"vbe state  - show VBE state");
+
+U_BOOT_CMD_WITH_SUBCMDS(vbe, "Verified Boot for Embedded", vbe_help_text,
+	U_BOOT_SUBCMD_MKENT(list, 1, 1, do_vbe_list),
+	U_BOOT_SUBCMD_MKENT(select, 2, 1, do_vbe_select),
+	U_BOOT_SUBCMD_MKENT(state, 2, 1, do_vbe_state),
+	U_BOOT_SUBCMD_MKENT(info, 2, 1, do_vbe_info));