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efi/libstub: Expose LocateDevicePath boot service

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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: Ard Biesheuvel <ardb@kernel.org>
This commit is contained in:
Ard Biesheuvel
2020-02-10 17:02:47 +01:00
parent 91d150c0cc
commit abd268685a
2 changed files with 8 additions and 1 deletions
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3
arch/x86/include/asm/efi.h
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@@ -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), \