linux-kernel - [PATCH 2/6] arm/efi: Allow invocation of arbitrary runtime services

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Message-ID: <147977470660.6360.5713293266942511695.stgit@warthog.procyon.org.uk>
Date:   Tue, 22 Nov 2016 00:31:46 +0000
From:   David Howells <dhowells@...hat.com>
To:     lukas@...ner.de
Cc:     linux-efi@...r.kernel.org, dhowells@...hat.com,
        linux-security-module@...r.kernel.org, keyrings@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 2/6] arm/efi: Allow invocation of arbitrary runtime services

Provide the ability to perform mixed-mode runtime service calls for arm in
the same way that commit 0a637ee61247bd4bed9b2a07568ef7a1cfc76187 provides
the ability to invoke arbitrary boot services.

Suggested-by: Lukas Wunner <lukas@...ner.de>
Signed-off-by: David Howells <dhowells@...hat.com>
---

 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 771b3f0bc757..d74ae223d89f 100644
--- a/arch/arm64/include/asm/efi.h
+++ b/arch/arm64/include/asm/efi.h
@@ -49,6 +49,7 @@ 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, ...)			\