efi_loader: Update efi_run_image() to accept image and device path

Provide these globals as parameters to this function, on the way to
making it possible to start an image without relying on the globals.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
diff --git a/lib/efi_loader/efi_bootbin.c b/lib/efi_loader/efi_bootbin.c
index 428991d..71591dd 100644
--- a/lib/efi_loader/efi_bootbin.c
+++ b/lib/efi_loader/efi_bootbin.c
@@ -157,9 +157,13 @@
  *
  * @source_buffer:	memory address of the UEFI image
  * @source_size:	size of the UEFI image
+ * @dp_dev:		EFI device-path
+ * @dp_img:		EFI image-path
  * Return:		status code
  */
-static efi_status_t efi_run_image(void *source_buffer, efi_uintn_t source_size)
+static efi_status_t efi_run_image(void *source_buffer, efi_uintn_t source_size,
+				  struct efi_device_path *dp_dev,
+				  struct efi_device_path *dp_img)
 {
 	efi_handle_t mem_handle = NULL, handle;
 	struct efi_device_path *file_path = NULL;
@@ -167,7 +171,7 @@
 	efi_status_t ret;
 	u16 *load_options;
 
-	if (!bootefi_device_path || !bootefi_image_path) {
+	if (!dp_img || !dp_img) {
 		log_debug("Not loaded from disk\n");
 		/*
 		 * Special case for efi payload not loaded from disk,
@@ -188,9 +192,8 @@
 			goto out;
 		msg_path = file_path;
 	} else {
-		file_path = efi_dp_concat(bootefi_device_path,
-					  bootefi_image_path, 0);
-		msg_path = bootefi_image_path;
+		file_path = efi_dp_concat(dp_img, dp_img, 0);
+		msg_path = dp_img;
 		log_debug("Loaded from disk\n");
 	}
 
@@ -252,5 +255,6 @@
 	if (ret != EFI_SUCCESS)
 		return ret;
 
-	return efi_run_image(image, size);
+	return efi_run_image(image, size, bootefi_device_path,
+			     bootefi_image_path);
 }