83 lines
2.2 KiB
C
83 lines
2.2 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2022 SiFive
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*
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* Authors:
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* Vincent Chen <vincent.chen@sifive.com>
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* Greentime Hu <greentime.hu@sifive.com>
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*/
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#ifndef __KVM_VCPU_RISCV_VECTOR_H
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#define __KVM_VCPU_RISCV_VECTOR_H
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#include <linux/types.h>
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#ifdef CONFIG_RISCV_ISA_V
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#include <asm/vector.h>
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#include <asm/kvm_host.h>
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static __always_inline void __kvm_riscv_vector_save(struct kvm_cpu_context *context)
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{
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__riscv_v_vstate_save(&context->vector, context->vector.datap);
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}
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static __always_inline void __kvm_riscv_vector_restore(struct kvm_cpu_context *context)
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{
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__riscv_v_vstate_restore(&context->vector, context->vector.datap);
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}
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void kvm_riscv_vcpu_vector_reset(struct kvm_vcpu *vcpu);
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void kvm_riscv_vcpu_guest_vector_save(struct kvm_cpu_context *cntx,
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unsigned long *isa);
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void kvm_riscv_vcpu_guest_vector_restore(struct kvm_cpu_context *cntx,
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unsigned long *isa);
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void kvm_riscv_vcpu_host_vector_save(struct kvm_cpu_context *cntx);
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void kvm_riscv_vcpu_host_vector_restore(struct kvm_cpu_context *cntx);
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int kvm_riscv_vcpu_alloc_vector_context(struct kvm_vcpu *vcpu,
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struct kvm_cpu_context *cntx);
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void kvm_riscv_vcpu_free_vector_context(struct kvm_vcpu *vcpu);
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#else
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struct kvm_cpu_context;
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static inline void kvm_riscv_vcpu_vector_reset(struct kvm_vcpu *vcpu)
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{
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}
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static inline void kvm_riscv_vcpu_guest_vector_save(struct kvm_cpu_context *cntx,
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unsigned long *isa)
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{
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}
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static inline void kvm_riscv_vcpu_guest_vector_restore(struct kvm_cpu_context *cntx,
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unsigned long *isa)
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{
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}
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static inline void kvm_riscv_vcpu_host_vector_save(struct kvm_cpu_context *cntx)
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{
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}
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static inline void kvm_riscv_vcpu_host_vector_restore(struct kvm_cpu_context *cntx)
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{
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}
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static inline int kvm_riscv_vcpu_alloc_vector_context(struct kvm_vcpu *vcpu,
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struct kvm_cpu_context *cntx)
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{
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return 0;
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}
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static inline void kvm_riscv_vcpu_free_vector_context(struct kvm_vcpu *vcpu)
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{
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}
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#endif
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int kvm_riscv_vcpu_get_reg_vector(struct kvm_vcpu *vcpu,
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const struct kvm_one_reg *reg,
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unsigned long rtype);
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int kvm_riscv_vcpu_set_reg_vector(struct kvm_vcpu *vcpu,
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const struct kvm_one_reg *reg,
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unsigned long rtype);
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#endif
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