@@ -174,6 +174,10 @@ extern struct list_head efi_obj_list;
int efi_console_register(void);
/* Called by bootefi to make all disk storage accessible as EFI objects */
int efi_disk_register(void);
+/* Create handles and protocols for the partions of a block device */
+int efi_disk_create_partitions(efi_handle_t parent, struct blk_desc *desc,
+ const char *if_typename, int diskid,
+ const char *pdevname);
/* Called by bootefi to make GOP (graphical) interface available */
int efi_gop_register(void);
/* Called by bootefi to make the network interface available */
@@ -216,27 +216,31 @@ efi_fs_from_path(struct efi_device_path *full_path)
}
/*
- * Create a device for a disk
+ * Create a handle for a partition or disk
*
- * @name not used
+ * @parent parent handle
+ * @dp_parent parent device path
* @if_typename interface name for block device
* @desc internal block device
* @dev_index device index for block device
* @offset offset into disk for simple partitions
+ * @return disk object
*/
-static void efi_disk_add_dev(const char *name,
- const char *if_typename,
- struct blk_desc *desc,
- int dev_index,
- lbaint_t offset,
- unsigned int part)
+static struct efi_disk_obj *efi_disk_add_dev(
+ efi_handle_t parent,
+ struct efi_device_path *dp_parent,
+ const char *if_typename,
+ struct blk_desc *desc,
+ int dev_index,
+ lbaint_t offset,
+ unsigned int part)
{
struct efi_disk_obj *diskobj;
efi_status_t ret;
/* Don't add empty devices */
if (!desc->lba)
- return;
+ return NULL;
diskobj = calloc(1, sizeof(*diskobj));
if (!diskobj)
@@ -246,7 +250,14 @@ static void efi_disk_add_dev(const char *name,
efi_add_handle(&diskobj->parent);
/* Fill in object data */
- diskobj->dp = efi_dp_from_part(desc, part);
+ if (part) {
+ struct efi_device_path *node = efi_dp_part_node(desc, part);
+
+ diskobj->dp = efi_dp_append_node(dp_parent, node);
+ efi_free_pool(node);
+ } else {
+ diskobj->dp = efi_dp_from_part(desc, part);
+ }
diskobj->part = part;
ret = efi_add_protocol(diskobj->parent.handle, &efi_block_io_guid,
&diskobj->ops);
@@ -280,20 +291,38 @@ static void efi_disk_add_dev(const char *name,
if (part != 0)
diskobj->media.logical_partition = 1;
diskobj->ops.media = &diskobj->media;
- return;
+ return diskobj;
out_of_memory:
printf("ERROR: Out of memory\n");
+ return NULL;
}
-static int efi_disk_create_partitions(struct blk_desc *desc,
- const char *if_typename,
- int diskid,
- const char *pdevname)
+/*
+ * Create handles and protocols for the partions of a block device
+ *
+ * @parent handle of the parent disk
+ * @blk_desc block device
+ * @if_typename interface type
+ * @diskid device number
+ * @pdevname device name
+ * @return number of partions created
+ */
+int efi_disk_create_partitions(efi_handle_t parent, struct blk_desc *desc,
+ const char *if_typename, int diskid,
+ const char *pdevname)
{
int disks = 0;
char devname[32] = { 0 }; /* dp->str is u16[32] long */
disk_partition_t info;
int part;
+ struct efi_device_path *dp = NULL;
+ efi_status_t ret;
+ struct efi_handler *handler;
+
+ /* Get the device path of the parent */
+ ret = efi_search_protocol(parent, &efi_guid_device_path, &handler);
+ if (ret == EFI_SUCCESS)
+ dp = handler->protocol_interface;
/* Add devices for each partition */
for (part = 1; part <= MAX_SEARCH_PARTITIONS; part++) {
@@ -301,7 +330,7 @@ static int efi_disk_create_partitions(struct blk_desc *desc,
continue;
snprintf(devname, sizeof(devname), "%s:%d", pdevname,
part);
- efi_disk_add_dev(devname, if_typename, desc, diskid,
+ efi_disk_add_dev(parent, dp, if_typename, desc, diskid,
info.start, part);
disks++;
}
@@ -322,6 +351,7 @@ static int efi_disk_create_partitions(struct blk_desc *desc,
*/
int efi_disk_register(void)
{
+ struct efi_disk_obj *disk;
int disks = 0;
#ifdef CONFIG_BLK
struct udevice *dev;
@@ -335,14 +365,16 @@ int efi_disk_register(void)
printf("Scanning disk %s...\n", dev->name);
/* Add block device for the full device */
- efi_disk_add_dev(dev->name, if_typename, desc,
- desc->devnum, 0, 0);
-
+ disk = efi_disk_add_dev(NULL, NULL, if_typename,
+ desc, desc->devnum, 0, 0);
+ if (!disk)
+ return -ENOMEM;
disks++;
/* Partitions show up as block devices in EFI */
- disks += efi_disk_create_partitions(desc, if_typename,
- desc->devnum, dev->name);
+ disks += efi_disk_create_partitions(
+ disk->parent.handle, desc, if_typename,
+ desc->devnum, dev->name);
}
#else
int i, if_type;
@@ -372,12 +404,16 @@ int efi_disk_register(void)
if_typename, i);
/* Add block device for the full device */
- efi_disk_add_dev(devname, if_typename, desc, i, 0, 0);
+ disk = efi_disk_add_dev(NULL, NULL, if_typename, desc,
+ i, 0, 0);
+ if (!disk)
+ return -ENOMEM;
disks++;
/* Partitions show up as block devices in EFI */
- disks += efi_disk_create_partitions(desc, if_typename,
- i, devname);
+ disks += efi_disk_create_partitions(
+ disk->parent.handle, desc,
+ if_typename, i, devname);
}
}
#endif