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From: Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>
To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Cc: devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org,
	Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>,
	xen-devel-GuqFBffKawuEi8DpZVb4nw@public.gmane.org
Subject: [PATCH v3 2/6] ARM: opcodes: add opcodes definitions for ARM security extensions
Date: Tue, 18 Dec 2012 17:53:12 +0000	[thread overview]
Message-ID: <1355853196-23676-3-git-send-email-will.deacon@arm.com> (raw)
In-Reply-To: <1355853196-23676-1-git-send-email-will.deacon-5wv7dgnIgG8@public.gmane.org>

The ARM security extensions introduced the smc instruction, which is not
supported by all versions of GAS.

This patch introduces opcodes-sec.h, so that smc is made available in a
similar manner to hvc.

Acked-by: Dave Martin <dave.martin-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Signed-off-by: Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>
---
 arch/arm/include/asm/opcodes-sec.h | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 arch/arm/include/asm/opcodes-sec.h

diff --git a/arch/arm/include/asm/opcodes-sec.h b/arch/arm/include/asm/opcodes-sec.h
new file mode 100644
index 0000000..bc3a917
--- /dev/null
+++ b/arch/arm/include/asm/opcodes-sec.h
@@ -0,0 +1,24 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * Copyright (C) 2012 ARM Limited
+ */
+
+#ifndef __ASM_ARM_OPCODES_SEC_H
+#define __ASM_ARM_OPCODES_SEC_H
+
+#include <asm/opcodes.h>
+
+#define __SMC(imm4) __inst_arm_thumb32(					\
+	0xE1600070 | (((imm4) & 0xF) << 0),				\
+	0xF7F08000 | (((imm4) & 0xF) << 16)				\
+)
+
+#endif /* __ASM_ARM_OPCODES_SEC_H */
-- 
1.8.0

  parent reply	other threads:[~2012-12-18 17:53 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-12-18 17:53 [PATCH v3 0/6] Add support for a fake, para-virtualised machine Will Deacon
     [not found] ` <1355853196-23676-1-git-send-email-will.deacon-5wv7dgnIgG8@public.gmane.org>
2012-12-18 17:53   ` [PATCH v3 1/6] ARM: opcodes: add missing include of linux/linkage.h Will Deacon
2012-12-18 17:53   ` Will Deacon [this message]
2012-12-18 17:53   ` [PATCH v3 3/6] ARM: psci: add devicetree binding for describing PSCI firmware Will Deacon
2012-12-19  4:11     ` Nicolas Pitre
2012-12-18 17:53   ` [PATCH v3 4/6] ARM: psci: add support for PSCI invocations from the kernel Will Deacon
     [not found]     ` <1355853196-23676-5-git-send-email-will.deacon-5wv7dgnIgG8@public.gmane.org>
2012-12-19  4:16       ` Nicolas Pitre
2012-12-18 17:53   ` [PATCH v3 5/6] ARM: Dummy Virtual Machine platform support Will Deacon
     [not found]     ` <1355853196-23676-6-git-send-email-will.deacon-5wv7dgnIgG8@public.gmane.org>
2012-12-19  4:17       ` Nicolas Pitre
2012-12-18 17:59   ` [PATCH v3 0/6] Add support for a fake, para-virtualised machine Arnd Bergmann
2012-12-18 17:53 ` [PATCH v3 6/6] ARM: mach-virt: add SMP support using PSCI Will Deacon
     [not found]   ` <1355853196-23676-7-git-send-email-will.deacon-5wv7dgnIgG8@public.gmane.org>
2012-12-19  4:09     ` Nicolas Pitre

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