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efi_loader: mark started images

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In UnloadImage() we need to know if an image is already started.

Add a field to the handle structure identifying loaded and started images.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
Heinrich Schuchardt 2019-05-01 14:20:18 +02:00
parent 8dfb5e6e21
commit cd73aba656
2 changed files with 15 additions and 0 deletions
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13
include/efi_loader.h
View File

@ -179,6 +179,18 @@ struct efi_handler {
struct list_head open_infos;
};
/**
* enum efi_object_type - type of EFI object
*
* In UnloadImage we must be able to identify if the handle relates to a
* started image.
*/
enum efi_object_type {
EFI_OBJECT_TYPE_UNDEFINED = 0,
EFI_OBJECT_TYPE_LOADED_IMAGE,
EFI_OBJECT_TYPE_STARTED_IMAGE,
};
/**
* struct efi_object - dereferenced EFI handle
*
@ -201,6 +213,7 @@ struct efi_object {
struct list_head link;
/* The list of protocols */
struct list_head protocols;
enum efi_object_type type;
};
/**

2
lib/efi_loader/efi_boottime.c
View File

@ -1554,6 +1554,7 @@ efi_status_t efi_setup_loaded_image(struct efi_device_path *device_path,
free(info);
return EFI_OUT_OF_RESOURCES;
}
obj->header.type = EFI_OBJECT_TYPE_LOADED_IMAGE;
/* Add internal object to object list */
efi_add_handle(&obj->header);
@ -2678,6 +2679,7 @@ efi_status_t EFIAPI efi_start_image(efi_handle_t image_handle,
}
current_image = image_handle;
image_obj->header.type = EFI_OBJECT_TYPE_STARTED_IMAGE;
EFI_PRINT("Jumping into 0x%p\n", image_obj->entry);
ret = EFI_CALL(image_obj->entry(image_handle, &systab));