Commit abd26868 authored by Ard Biesheuvel's avatar Ard Biesheuvel
Browse files

efi/libstub: Expose LocateDevicePath boot service 



We will be adding support for loading the initrd from a GUIDed
device path in a subsequent patch, so update the prototype of
the LocateDevicePath() boot service to make it callable from
our code.

Signed-off-by: default avatarArd Biesheuvel <ardb@kernel.org>
parent 91d150c0

arch/x86/include/asm/efi.h

+3 −0
Original line number Diff line number Diff line
@@ -283,6 +283,9 @@ static inline void *efi64_zero_upper(void *p) 
#define __efi64_argmap_locate_protocol(protocol, reg, interface)	\

	((protocol), (reg), efi64_zero_upper(interface))



#define __efi64_argmap_locate_device_path(protocol, path, handle)	\

	((protocol), (path), efi64_zero_upper(handle))



/* PCI I/O */

#define __efi64_argmap_get_location(protocol, seg, bus, dev, func)	\

	((protocol), efi64_zero_upper(seg), efi64_zero_upper(bus),	\

drivers/firmware/efi/libstub/efistub.h

+5 −1
Original line number Diff line number Diff line
@@ -100,6 +100,8 @@ struct efi_boot_memmap { 
	unsigned long		*buff_size;

};



typedef struct efi_generic_dev_path efi_device_path_protocol_t;



/*

 * EFI Boot Services table

 */
@@ -134,7 +136,9 @@ union efi_boot_services { 
		efi_status_t (__efiapi *locate_handle)(int, efi_guid_t *,

						       void *, unsigned long *,

						       efi_handle_t *);

		void *locate_device_path;

		efi_status_t (__efiapi *locate_device_path)(efi_guid_t *,

							    efi_device_path_protocol_t **,

							    efi_handle_t *);

		efi_status_t (__efiapi *install_configuration_table)(efi_guid_t *,

								     void *);

		void *load_image;

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