[PATCH 2/7] arm/efi: Allow invocation of arbitrary runtime services

[Ard Biesheuvel]

From: David Howells <dhowells@xxxxxxxxxx>

efi_call_runtime() is provided for x86 to be able abstract mixed mode
support.  Provide this for ARM also so that common code work in mixed mode
also.

Suggested-by: Lukas Wunner <lukas@xxxxxxxxx>
Cc: Matt Fleming <matt@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>
---
 arch/arm/include/asm/efi.h   | 1 +
 arch/arm64/include/asm/efi.h | 1 +
 2 files changed, 2 insertions(+)

diff --git a/arch/arm/include/asm/efi.h b/arch/arm/include/asm/efi.h
index 0b06f5341b45..e4e6a9d6a825 100644
--- a/arch/arm/include/asm/efi.h
+++ b/arch/arm/include/asm/efi.h
@@ -55,6 +55,7 @@ void efi_virtmap_unload(void);
 
 #define efi_call_early(f, ...)		sys_table_arg->boottime->f(__VA_ARGS__)
 #define __efi_call_early(f, ...)	f(__VA_ARGS__)
+#define efi_call_runtime(f, ...)	sys_table_arg->runtime->f(__VA_ARGS__)
 #define efi_is_64bit()			(false)
 
 #define efi_call_proto(protocol, f, instance, ...)			\
diff --git a/arch/arm64/include/asm/efi.h b/arch/arm64/include/asm/efi.h
index 0b6b1633017f..e7445281e534 100644
--- a/arch/arm64/include/asm/efi.h
+++ b/arch/arm64/include/asm/efi.h
@@ -50,6 +50,7 @@ int efi_set_mapping_permissions(struct mm_struct *mm, efi_memory_desc_t *md);
 
 #define efi_call_early(f, ...)		sys_table_arg->boottime->f(__VA_ARGS__)
 #define __efi_call_early(f, ...)	f(__VA_ARGS__)
+#define efi_call_runtime(f, ...)	sys_table_arg->runtime->f(__VA_ARGS__)
 #define efi_is_64bit()			(true)
 
 #define efi_call_proto(protocol, f, instance, ...)			\
-- 
2.7.4