1 files changed, 115 insertions, 0 deletions
diff --git a/src/vendorcode/google/chromeos/vboot_handoff.c b/src/vendorcode/google/chromeos/vboot_handoff.c
new file mode 100644
index 0000000000..937b2e31c0
--- /dev/null
+++ b/src/vendorcode/google/chromeos/vboot_handoff.c
@@ -0,0 +1,115 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 The ChromiumOS Authors.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stddef.h>
+#include "chromeos.h"
+#include <boot/coreboot_tables.h>
+#include <cbmem.h>
+#include <console/console.h>
+#include <payload_loader.h>
+#include "vboot_handoff.h"
+
+int vboot_enable_developer(void)
+{
+	struct vboot_handoff *vbho;
+
+	vbho = cbmem_find(CBMEM_ID_VBOOT_HANDOFF);
+
+	if (vbho == NULL) {
+		printk(BIOS_ERR, "%s: Couldn't find vboot_handoff structure!\n",
+		        __func__);
+		return 0;
+	}
+
+	return !!(vbho->init_params.out_flags & VB_INIT_OUT_ENABLE_DEVELOPER);
+}
+
+int vboot_enable_recovery(void)
+{
+	struct vboot_handoff *vbho;
+
+	vbho = cbmem_find(CBMEM_ID_VBOOT_HANDOFF);
+
+	if (vbho == NULL)
+		return 0;
+
+	return !!(vbho->init_params.out_flags & VB_INIT_OUT_ENABLE_RECOVERY);
+}
+
+static void *vboot_get_payload(size_t *len)
+{
+	struct vboot_handoff *vboot_handoff;
+	struct firmware_component *fwc;
+
+	vboot_handoff = cbmem_find(CBMEM_ID_VBOOT_HANDOFF);
+
+	if (vboot_handoff == NULL)
+		return NULL;
+
+	if (CONFIG_VBOOT_BOOT_LOADER_INDEX >= MAX_PARSED_FW_COMPONENTS) {
+		printk(BIOS_ERR, "Invalid boot loader index: %d\n",
+		       CONFIG_VBOOT_BOOT_LOADER_INDEX);
+		return NULL;
+	}
+
+	fwc = &vboot_handoff->components[CONFIG_VBOOT_BOOT_LOADER_INDEX];
+
+	if (len != NULL)
+		*len = fwc->size;
+
+	printk(BIOS_DEBUG, "Booting 0x%x byte payload at 0x%08x.\n",
+	       fwc->size, fwc->address);
+
+	return (void *)fwc->address;
+}
+
+static int vboot_locate_payload(struct payload *payload)
+{
+	void *buffer;
+	size_t size;
+
+	buffer = vboot_get_payload(&size);
+
+	if (buffer == NULL)
+		return -1;
+
+	payload->backing_store.data = buffer;
+	payload->backing_store.size = size;
+
+	return 0;
+}
+
+const struct payload_loader_ops vboot_payload_loader = {
+	.name = "VBOOT",
+	.locate = vboot_locate_payload,
+};
+
+int vboot_get_handoff_info(void **addr, uint32_t *size)
+{
+	struct vboot_handoff *vboot_handoff;
+
+	vboot_handoff = cbmem_find(CBMEM_ID_VBOOT_HANDOFF);
+
+	if (vboot_handoff == NULL)
+		return -1;
+
+	*addr = vboot_handoff;
+	*size = sizeof(*vboot_handoff);
+	return 0;
+}