diff options
Diffstat (limited to 'include/bootflow.h')
| -rw-r--r-- | include/bootflow.h | 85 |
1 files changed, 76 insertions, 9 deletions
diff --git a/include/bootflow.h b/include/bootflow.h index 4d2fc7b69b5..480cf8a5af1 100644 --- a/include/bootflow.h +++ b/include/bootflow.h @@ -7,7 +7,9 @@ #ifndef __bootflow_h #define __bootflow_h +#include <alist.h> #include <bootdev.h> +#include <image.h> #include <dm/ofnode_decl.h> #include <linux/list.h> @@ -56,13 +58,8 @@ enum bootflow_flags_t { /** * struct bootflow - information about a bootflow * - * This is connected into two separate linked lists: + * All bootflows are listed in bootstd's bootflow alist in struct bootstd_priv * - * bm_sibling - links all bootflows in the same bootdev - * glob_sibling - links all bootflows in all bootdevs - * - * @bm_node: Points to siblings in the same bootdev - * @glob_node: Points to siblings in the global list (all bootdev) * @dev: Bootdev device which produced this bootflow, NULL for flows created by * BOOTMETHF_GLOBAL bootmeths * @blk: Block device which contains this bootflow, NULL if this is a network @@ -90,10 +87,9 @@ enum bootflow_flags_t { * @cmdline: OS command line, or NULL if not known (allocated) * @x86_setup: Pointer to x86 setup block inside @buf, NULL if not present * @bootmeth_priv: Private data for the bootmeth + * @images: List of loaded images (struct bootstd_img) */ struct bootflow { - struct list_head bm_node; - struct list_head glob_node; struct udevice *dev; struct udevice *blk; int part; @@ -116,6 +112,44 @@ struct bootflow { char *cmdline; void *x86_setup; void *bootmeth_priv; + struct alist images; +}; + +/** + * bootflow_img_t: Supported image types + * + * This uses image_type_t for most types, but extends it + * + * @BFI_EXTLINUX_CFG: extlinux configuration-file + * @BFI_LOGO: logo image + * @BFI_EFI: EFI PE image + * @BFI_CMDLINE: OS command-line string + */ +enum bootflow_img_t { + BFI_FIRST = IH_TYPE_COUNT, + BFI_EXTLINUX_CFG = BFI_FIRST, + BFI_LOGO, + BFI_EFI, + BFI_CMDLINE, + + BFI_COUNT, +}; + +/** + * struct bootflow_img - Information about an image which has been loaded + * + * This keeps track of a single, loaded image. + * + * @fname: Filename used to load the image (allocated) + * @type: Image type (IH_TYPE_...) + * @addr: Address to which the image was loaded, 0 if not yet loaded + * @size: Size of the image + */ +struct bootflow_img { + char *fname; + enum bootflow_img_t type; + ulong addr; + ulong size; }; /** @@ -393,7 +427,10 @@ const char *bootflow_state_get_name(enum bootflow_state_t state); /** * bootflow_remove() - Remove a bootflow and free its memory * - * This updates the linked lists containing the bootflow then frees it. + * This updates the 'global' linked list containing the bootflow, then frees it. + * It does not remove it from bootflows alist in struct bootstd_priv + * + * This does not free bflow itself, since this is assumed to be in an alist * * @bflow: Bootflow to remove */ @@ -569,4 +606,34 @@ int bootflow_cmdline_get_arg(struct bootflow *bflow, const char *arg, */ int bootflow_cmdline_auto(struct bootflow *bflow, const char *arg); +/** + * bootflow_img_type_name() - Get the name for an image type + * + * @type: Type to check (either enum bootflow_img_t or enum image_type_t + * 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); +/** + * bootflow_get_seq() - Get the sequence number of a bootflow + * + * Bootflows are numbered by their position in the bootstd list. + * + * Return: Sequence number of bootflow (0 = first) + */ +int bootflow_get_seq(const struct bootflow *bflow); + #endif |