43 lines
1.1 KiB
ArmAsm
43 lines
1.1 KiB
ArmAsm
/*
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* Copyright (c) 2017 ETH Zurich.
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* All rights reserved.
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*
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* This file is distributed under the terms in the attached LICENSE file.
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* If you do not find this file, copies can be found by writing to:
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* ETH Zurich D-INFK, Universitaetstrasse 6, CH-8092 Zurich. Attn: Systems Group.
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*/
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#include <asmoffsets.h>
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#include <offsets.h>
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.global invoke_arm_smc
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.global invoke_arm_hvc
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/*
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* We use the firest 8 arguments to be passed through the registers and
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* the address of the struct to hold the return values on the stack
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*/
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/*
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* void invoke_arm_smc(uintptr_t a0, uintptr_t a1, uintptr_t a2,
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* uintptr_t a3, uintptr_t a4, uintptr_t a5,
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* uintptr_t a6, uintptr_t a7, struct arm_smc_hvc_retval *res);
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*/
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invoke_arm_smc:
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smc #0
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ldr x4, [sp]
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stp x0, x1, [x4]
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ret
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/*
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* void invoke_arm_hvc(uintptr_t a0, uintptr_t a1, uintptr_t a2,
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* uintptr_t a3, uintptr_t a4, uintptr_t a5,
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* uintptr_t a6, uintptr_t a7, struct arm_smc_hvc_retval *res,);
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*/
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invoke_arm_hvc:
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hvc #0
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ldr x4, [sp]
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stp x0, x1, [x4]
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ret
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