| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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| 2 | /* Copyright (C) 2019 Arm Ltd. */ |
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| 3 | |
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| 4 | #ifndef __KVM_ARM_HYPERCALLS_H |
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| 5 | #define __KVM_ARM_HYPERCALLS_H |
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| 6 | |
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| 7 | #include <asm/kvm_emulate.h> |
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| 8 | |
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| 9 | int kvm_smccc_call_handler(struct kvm_vcpu *vcpu); |
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| 10 | |
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| 11 | static inline u32 smccc_get_function(struct kvm_vcpu *vcpu) |
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| 12 | { |
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| 13 | return vcpu_get_reg(vcpu, 0); |
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| 14 | } |
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| 15 | |
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| 16 | static inline unsigned long smccc_get_arg1(struct kvm_vcpu *vcpu) |
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| 17 | { |
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| 18 | return vcpu_get_reg(vcpu, 1); |
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| 19 | } |
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| 20 | |
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| 21 | static inline unsigned long smccc_get_arg2(struct kvm_vcpu *vcpu) |
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| 22 | { |
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| 23 | return vcpu_get_reg(vcpu, 2); |
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| 24 | } |
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| 25 | |
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| 26 | static inline unsigned long smccc_get_arg3(struct kvm_vcpu *vcpu) |
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| 27 | { |
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| 28 | return vcpu_get_reg(vcpu, 3); |
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| 29 | } |
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| 30 | |
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| 31 | static inline void smccc_set_retval(struct kvm_vcpu *vcpu, |
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| 32 | unsigned long a0, |
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| 33 | unsigned long a1, |
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| 34 | unsigned long a2, |
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| 35 | unsigned long a3) |
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| 36 | { |
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| 37 | vcpu_set_reg(vcpu, 0, a0); |
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| 38 | vcpu_set_reg(vcpu, 1, a1); |
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| 39 | vcpu_set_reg(vcpu, 2, a2); |
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| 40 | vcpu_set_reg(vcpu, 3, a3); |
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| 41 | } |
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| 42 | |
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| 43 | struct kvm_one_reg; |
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| 44 | |
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| 45 | void kvm_arm_init_hypercalls(struct kvm *kvm); |
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| 46 | void kvm_arm_teardown_hypercalls(struct kvm *kvm); |
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| 47 | int kvm_arm_get_fw_num_regs(struct kvm_vcpu *vcpu); |
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| 48 | int kvm_arm_copy_fw_reg_indices(struct kvm_vcpu *vcpu, u64 __user *uindices); |
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| 49 | int kvm_arm_get_fw_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg); |
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| 50 | int kvm_arm_set_fw_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg); |
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| 51 | |
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| 52 | int kvm_vm_smccc_has_attr(struct kvm *kvm, struct kvm_device_attr *attr); |
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| 53 | int kvm_vm_smccc_set_attr(struct kvm *kvm, struct kvm_device_attr *attr); |
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| 54 | |
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| 55 | #endif |
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| 56 | |
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