bootstd: Update bootmeth_alloc_file() to record images

As a first step to recording images and where they came from, update
this function to do so, since it is used by two bootmeths

Create a helper function in the bootflow system, since recorded
images are always associated with bootflows.

Signed-off-by: Simon Glass <sjg@chromium.org>

boot/bootflow.c

@@ -976,3 +976,24 @@ const char *bootflow_img_type_name(enum bootflow_img_t type)
 
 	return name;
 }
+
+struct bootflow_img *bootflow_img_add(struct bootflow *bflow, const char *fname,
+				      enum bootflow_img_t type, ulong addr,
+				      ulong size)
+{
+	struct bootflow_img img, *ptr;
+
+	memset(&img, '\0', sizeof(struct bootflow_img));
+	img.fname = strdup(fname);
+	if (!img.fname)
+		return NULL;
+
+	img.type = type;
+	img.addr = addr;
+	img.size = size;
+	ptr = alist_add(&bflow->images, img);
+	if (!ptr)
+		return NULL;
+
+	return ptr;
+}

boot/bootmeth-uclass.c

@@ -6,6 +6,7 @@
 
 #define LOG_CATEGORY UCLASS_BOOTSTD
 
+#include <alist.h>
 #include <blk.h>
 #include <bootflow.h>
 #include <bootmeth.h>
@@ -326,8 +327,10 @@ int bootmeth_try_file(struct bootflow *bflow, struct blk_desc *desc,
 	return 0;
 }
 
-int bootmeth_alloc_file(struct bootflow *bflow, uint size_limit, uint align)
+int bootmeth_alloc_file(struct bootflow *bflow, uint size_limit, uint align,
+			enum bootflow_img_t type)
 {
+	struct blk_desc *desc = NULL;
 	void *buf;
 	uint size;
 	int ret;
@@ -344,6 +347,13 @@ int bootmeth_alloc_file(struct bootflow *bflow, uint size_limit, uint align)
 	bflow->state = BOOTFLOWST_READY;
 	bflow->buf = buf;
 
+	if (bflow->blk)
+		desc = dev_get_uclass_plat(bflow->blk);
+
+	if (!bootflow_img_add(bflow, bflow->fname, type, map_to_sysmem(buf),
+			      size))
+		return log_msg_ret("bai", -ENOMEM);
+
 	return 0;
 }
 

boot/bootmeth_extlinux.c

@@ -160,7 +160,8 @@ static int extlinux_read_bootflow(struct udevice *dev, struct bootflow *bflow)
 		return log_msg_ret("try", ret);
 	size = bflow->size;
 
-	ret = bootmeth_alloc_file(bflow, 0x10000, ARCH_DMA_MINALIGN);
+	ret = bootmeth_alloc_file(bflow, 0x10000, ARCH_DMA_MINALIGN,
+				  BFI_EXTLINUX_CFG);
 	if (ret)
 		return log_msg_ret("read", ret);
 

boot/bootmeth_script.c

@@ -98,7 +98,8 @@ static int script_read_bootflow_file(struct udevice *bootstd,
 	if (!bflow->subdir)
 		return log_msg_ret("prefix", -ENOMEM);
 
-	ret = bootmeth_alloc_file(bflow, 0x10000, ARCH_DMA_MINALIGN);
+	ret = bootmeth_alloc_file(bflow, 0x10000, ARCH_DMA_MINALIGN,
+				  (enum bootflow_img_t)IH_TYPE_SCRIPT);
 	if (ret)
 		return log_msg_ret("read", ret);
 

include/bootflow.h

@@ -613,4 +613,19 @@ int bootflow_cmdline_auto(struct bootflow *bflow, const char *arg);
  * Return: Image name, or "unknown" if not known
  */
 const char *bootflow_img_type_name(enum bootflow_img_t type);
+
+/**
+ * bootflow_img_add() - Add a new image to a bootflow
+ *
+ * @bflow: Bootflow to add to
+ * @fname: Image filename (will be allocated)
+ * @type: Image type
+ * @addr: Address the image was loaded to, or 0 if not loaded
+ * @size: Image size
+ * Return: pointer to the added image, or NULL if out of memory
+ */
+struct bootflow_img *bootflow_img_add(struct bootflow *bflow, const char *fname,
+				      enum bootflow_img_t type, ulong addr,
+				      ulong size);
+
 #endif

include/bootmeth.h

@@ -7,11 +7,11 @@
 #ifndef __bootmeth_h
 #define __bootmeth_h
 
+#include <bootflow.h>
+#include <image.h>
 #include <linux/bitops.h>
 
 struct blk_desc;
-struct bootflow;
-struct bootflow_iter;
 struct udevice;
 
 /**
@@ -365,10 +365,12 @@ int bootmeth_try_file(struct bootflow *bflow, struct blk_desc *desc,
  * @bflow: Information about file to read
  * @size_limit: Maximum file size to permit
  * @align: Allocation alignment (1 for unaligned)
+ * @type: File type (IH_TYPE_...)
  * Return: 0 if OK, -E2BIG if file is too large, -ENOMEM if out of memory,
  *	other -ve on other error
  */
-int bootmeth_alloc_file(struct bootflow *bflow, uint size_limit, uint align);
+int bootmeth_alloc_file(struct bootflow *bflow, uint size_limit, uint align,
+			enum bootflow_img_t type);
 
 /**
  * bootmeth_alloc_other() - Allocate and read a file for a bootflow