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efi_loader: expose symbols to be used by the EFI network stack

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The following symbols are exposed:
	- efi_reinstall_protocol_interface
		This is done so that the device path protocol interface
		of the network device can be changed internally by u-boot
		when a new bootfile gets downloaded.
	- eth_set_dev
		To support multiple network udevices
	- efi_close_event
		This comes in preparation to support unregistering
		an EFI network device from the EFI network stack when
		the underlying U-boot device gets removed
	- efi_[dis]connect_controller
		The EFI network driver uses ConnectController to add a
		NIC to the EFI network stack.
	- efi_uninstall_protocol_interface
		connect_controler for the efi network driver can install
		protocols, which need to be uninstalled in disconnect_controller
	- EFI_SIMPLE_NETWORK_PROTOCOL_GUID

Signed-off-by: Adriano Cordova <adriano.cordova@canonical.com>
This commit is contained in:
Adriano Cordova
2025-03-03 11:13:11 -03:00
committed by Simon Glass
parent d312cec0cc
commit f5bc2969a4
5 changed files with 29 additions and 13 deletions
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17
include/efi_loader.h
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@@ -309,6 +309,8 @@ extern const efi_guid_t efi_guid_host_dev;
#endif
/* GUID of the EFI_BLOCK_IO_PROTOCOL */
extern const efi_guid_t efi_block_io_guid;
/* GUID of the EFI_SIMPLE_NETWORK_PROTOCOL */
extern const efi_guid_t efi_net_guid;
extern const efi_guid_t efi_global_variable_guid;
extern const efi_guid_t efi_guid_console_control;
extern const efi_guid_t efi_guid_device_path;
@@ -721,6 +723,10 @@ efi_status_t efi_search_protocol(const efi_handle_t handle,
efi_status_t efi_add_protocol(const efi_handle_t handle,
const efi_guid_t *protocol,
void *protocol_interface);
/* Uninstall new protocol on a handle */
efi_status_t efi_uninstall_protocol
(efi_handle_t handle, const efi_guid_t *protocol,
void *protocol_interface, bool preserve);
/* Reinstall a protocol on a handle */
efi_status_t EFIAPI efi_reinstall_protocol_interface(
efi_handle_t handle,
@@ -736,6 +742,15 @@ efi_status_t EFIAPI
efi_install_multiple_protocol_interfaces(efi_handle_t *handle, ...);
efi_status_t EFIAPI
efi_uninstall_multiple_protocol_interfaces(efi_handle_t handle, ...);
/* Connect and disconnect controller */
efi_status_t EFIAPI efi_connect_controller(efi_handle_t controller_handle,
efi_handle_t *driver_image_handle,
struct efi_device_path *remain_device_path,
bool recursive);
efi_status_t EFIAPI efi_disconnect_controller(
efi_handle_t controller_handle,
efi_handle_t driver_image_handle,
efi_handle_t child_handle);
/* Get handles that support a given protocol */
efi_status_t EFIAPI efi_locate_handle_buffer(
enum efi_locate_search_type search_type,
@@ -756,6 +771,8 @@ efi_status_t efi_create_event(uint32_t type, efi_uintn_t notify_tpl,
void *context),
void *notify_context, const efi_guid_t *group,
struct efi_event **event);
/* Call this to close an event */
efi_status_t EFIAPI efi_close_event(struct efi_event *event);
/* Call this to set a timer */
efi_status_t efi_set_timer(struct efi_event *event, enum efi_timer_delay type,
uint64_t trigger_time);