In efi_disk_add_dev() we have to open protocols with BY_DRIVER and BY_CHILD_CONTROLLER. Provide the handle of the EFI block driver. The actual usage of the value will follow in a later patch.
Change function descriptions to Sphinx style.
Remove a TODO: tag.
Signed-off-by: Heinrich Schuchardt heinrich.schuchardt@canonical.com --- lib/efi_loader/efi_disk.c | 50 +++++++++++++++++++++++---------------- 1 file changed, 29 insertions(+), 21 deletions(-)
diff --git a/lib/efi_loader/efi_disk.c b/lib/efi_loader/efi_disk.c index cef4e45124..0ce448f92d 100644 --- a/lib/efi_loader/efi_disk.c +++ b/lib/efi_loader/efi_disk.c @@ -13,6 +13,7 @@ #include <dm/device-internal.h> #include <dm/tag.h> #include <event.h> +#include <efi_driver.h> #include <efi_loader.h> #include <fs.h> #include <log.h> @@ -382,6 +383,7 @@ static int efi_fs_exists(struct blk_desc *desc, int part) * @part_info: partition info * @part: partition * @disk: pointer to receive the created handle + * @agent_handle: handle of the EFI block driver * Return: disk object */ static efi_status_t efi_disk_add_dev( @@ -391,7 +393,8 @@ static efi_status_t efi_disk_add_dev( int dev_index, struct disk_partition *part_info, unsigned int part, - struct efi_disk_obj **disk) + struct efi_disk_obj **disk, + efi_handle_t agent_handle) { struct efi_disk_obj *diskobj; struct efi_object *handle; @@ -525,17 +528,18 @@ error: return ret; }
-/* - * Create a handle for a whole raw disk +/** + * efi_disk_create_raw() - create a handle for a whole raw disk * - * @dev uclass device (UCLASS_BLK) + * @dev: udevice (UCLASS_BLK) + * @agent_handle: handle of the EFI block driver * * Create an efi_disk object which is associated with @dev. * The type of @dev must be UCLASS_BLK. * - * @return 0 on success, -1 otherwise + * Return: 0 on success, -1 otherwise */ -static int efi_disk_create_raw(struct udevice *dev) +static int efi_disk_create_raw(struct udevice *dev, efi_handle_t agent_handle) { struct efi_disk_obj *disk; struct blk_desc *desc; @@ -546,7 +550,7 @@ static int efi_disk_create_raw(struct udevice *dev) diskid = desc->devnum;
ret = efi_disk_add_dev(NULL, NULL, desc, - diskid, NULL, 0, &disk); + diskid, NULL, 0, &disk, agent_handle); if (ret != EFI_SUCCESS) { if (ret == EFI_NOT_READY) log_notice("Disk %s not ready\n", dev->name); @@ -565,17 +569,18 @@ static int efi_disk_create_raw(struct udevice *dev) return 0; }
-/* - * Create a handle for a disk partition +/** + * efi_disk_create_part() - create a handle for a disk partition * - * @dev uclass device (UCLASS_PARTITION) + * @dev: udevice (UCLASS_PARTITION) + * @agent_handle: handle of the EFI block driver * * Create an efi_disk object which is associated with @dev. * The type of @dev must be UCLASS_PARTITION. * - * @return 0 on success, -1 otherwise + * Return: 0 on success, -1 otherwise */ -static int efi_disk_create_part(struct udevice *dev) +static int efi_disk_create_part(struct udevice *dev, efi_handle_t agent_handle) { efi_handle_t parent; struct blk_desc *desc; @@ -604,7 +609,7 @@ static int efi_disk_create_part(struct udevice *dev) dp_parent = (struct efi_device_path *)handler->protocol_interface;
ret = efi_disk_add_dev(parent, dp_parent, desc, diskid, - info, part, &disk); + info, part, &disk, agent_handle); if (ret != EFI_SUCCESS) { log_err("Adding partition for %s failed\n", dev->name); return -1; @@ -619,17 +624,18 @@ static int efi_disk_create_part(struct udevice *dev) return 0; }
-/* - * Create efi_disk objects for a block device +/** + * efi_disk_probe() - create efi_disk objects for a block device * - * @dev uclass device (UCLASS_BLK) + * @ctx: event context - driver binding protocol + * @event: EV_PM_POST_PROBE event * * Create efi_disk objects for partitions as well as a raw disk * which is associated with @dev. * The type of @dev must be UCLASS_BLK. * This function is expected to be called at EV_PM_POST_PROBE. * - * @return 0 on success, -1 otherwise + * Return: 0 on success, -1 otherwise */ int efi_disk_probe(void *ctx, struct event *event) { @@ -637,28 +643,30 @@ int efi_disk_probe(void *ctx, struct event *event) enum uclass_id id; struct blk_desc *desc; struct udevice *child; + struct efi_driver_binding_extended_protocol *db_prot = ctx; + efi_handle_t agent_handle = db_prot->bp.driver_binding_handle; int ret;
dev = event->data.dm.dev; id = device_get_uclass_id(dev);
- /* TODO: We won't support partitions in a partition */ + /* We won't support partitions in a partition */ if (id != UCLASS_BLK) return 0;
/* - * avoid creating duplicated objects now that efi_driver + * Avoid creating duplicated objects now that efi_driver * has already created an efi_disk at this moment. */ desc = dev_get_uclass_plat(dev); if (desc->uclass_id != UCLASS_EFI_LOADER) { - ret = efi_disk_create_raw(dev); + ret = efi_disk_create_raw(dev, agent_handle); if (ret) return -1; }
device_foreach_child(child, dev) { - ret = efi_disk_create_part(child); + ret = efi_disk_create_part(child, agent_handle); if (ret) return -1; }