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@xxxxxxxxxx>
---
arch/x86/include/asm/efi.h | 3 +++
drivers/firmware/efi/libstub/efistub.h | 6 +++++-
2 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h
index 85f79accd3f8..9ced980b123b 100644
--- a/arch/x86/include/asm/efi.h
+++ b/arch/x86/include/asm/efi.h
@@ -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), \
diff --git a/drivers/firmware/efi/libstub/efistub.h b/drivers/firmware/efi/libstub/efistub.h
index d282d907cd33..afa774a312f5 100644
--- a/drivers/firmware/efi/libstub/efistub.h
+++ b/drivers/firmware/efi/libstub/efistub.h
@@ -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;
--
2.17.1
