linux-kernel - [tip:efi/core] arm/efi: Allow invocation of arbitrary runtime services

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Date:   Tue, 7 Feb 2017 01:46:19 -0800
From:   tip-bot for David Howells <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     lukas@...ner.de, torvalds@...ux-foundation.org,
        peterz@...radead.org, mingo@...nel.org, hpa@...or.com,
        dhowells@...hat.com, tglx@...utronix.de, ard.biesheuvel@...aro.org,
        linux-kernel@...r.kernel.org, matt@...eblueprint.co.uk
Subject: [tip:efi/core] arm/efi: Allow invocation of arbitrary runtime
 services

Commit-ID:  6d0ca4a47bf8cb313a5180eabb791c33467f4452
Gitweb:     http://git.kernel.org/tip/6d0ca4a47bf8cb313a5180eabb791c33467f4452
Author:     David Howells <dhowells@...hat.com>
AuthorDate: Mon, 6 Feb 2017 11:22:41 +0000
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Tue, 7 Feb 2017 10:42:09 +0100

arm/efi: Allow invocation of arbitrary runtime services

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@...ner.de>
Signed-off-by: David Howells <dhowells@...hat.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@...aro.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Matt Fleming <matt@...eblueprint.co.uk>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: linux-efi@...r.kernel.org
Link: http://lkml.kernel.org/r/1486380166-31868-3-git-send-email-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 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 0b06f53..e4e6a9d6 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 0b6b163..e744528 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, ...)			\