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