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Diffstat (limited to 'arch/arm64/kvm/hyp.S')
-rw-r--r-- | arch/arm64/kvm/hyp.S | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/arch/arm64/kvm/hyp.S b/arch/arm64/kvm/hyp.S deleted file mode 100644 index 952f6cb9cf72..000000000000 --- a/arch/arm64/kvm/hyp.S +++ /dev/null @@ -1,48 +0,0 @@ -/* - * Copyright (C) 2012,2013 - ARM Ltd - * Author: Marc Zyngier <marc.zyngier@arm.com> - * - * 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. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - -#include <linux/linkage.h> - -#include <asm/alternative.h> -#include <asm/assembler.h> -#include <asm/cpufeature.h> - -/* - * u64 __kvm_call_hyp(void *hypfn, ...); - * - * This is not really a variadic function in the classic C-way and care must - * be taken when calling this to ensure parameters are passed in registers - * only, since the stack will change between the caller and the callee. - * - * Call the function with the first argument containing a pointer to the - * function you wish to call in Hyp mode, and subsequent arguments will be - * passed as x0, x1, and x2 (a maximum of 3 arguments in addition to the - * function pointer can be passed). The function being called must be mapped - * in Hyp mode (see init_hyp_mode in arch/arm/kvm/arm.c). Return values are - * passed in x0. - * - * A function pointer with a value less than 0xfff has a special meaning, - * and is used to implement hyp stubs in the same way as in - * arch/arm64/kernel/hyp_stub.S. - */ -ENTRY(__kvm_call_hyp) -alternative_if_not ARM64_HAS_VIRT_HOST_EXTN - hvc #0 - ret -alternative_else_nop_endif - b __vhe_hyp_call -ENDPROC(__kvm_call_hyp) |