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efi_loader: helper functions for protocol management

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This patch provides helper functions to manage protocols.
efi_search_protocol - find a protocol on a handle
efi_add_protocol - install a protocol on a handle
efi_remove_protocol - remove a protocol from a handle
efi_remove_all_protocols - remove all protocols from a handle

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Heinrich Schuchardt
2017-10-26 19:25:53 +02:00
committed by Alexander Graf
parent 49d62cb093
commit 3f79a2b532
2 changed files with 131 additions and 0 deletions
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12
include/efi_loader.h
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@@ -196,6 +196,18 @@ void efi_set_bootdev(const char *dev, const char *devnr, const char *path);
efi_status_t efi_create_handle(void **handle);
/* Call this to validate a handle and find the EFI object for it */
struct efi_object *efi_search_obj(const void *handle);
/* Find a protocol on a handle */
efi_status_t efi_search_protocol(const void *handle,
const efi_guid_t *protocol_guid,
struct efi_handler **handler);
/* Install new protocol on a handle */
efi_status_t efi_add_protocol(const void *handle, const efi_guid_t *protocol,
void *protocol_interface);
/* Delete protocol from a handle */
efi_status_t efi_remove_protocol(const void *handle, const efi_guid_t *protocol,
void *protocol_interface);
/* Delete all protocols from a handle */
efi_status_t efi_remove_all_protocols(const void *handle);
/* Call this to create an event */
efi_status_t efi_create_event(uint32_t type, efi_uintn_t notify_tpl,
void (EFIAPI *notify_function) (