kvm_vcpu_fp.h

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * Copyright (C) 2021 Western Digital Corporation or its affiliates.
 4 *
 5 * Authors:
 6 *     Atish Patra <atish.patra@wdc.com>
 7 *     Anup Patel <anup.patel@wdc.com>
 8 */
 9
10#ifndef __KVM_VCPU_RISCV_FP_H
11#define __KVM_VCPU_RISCV_FP_H
12
13#include <linux/types.h>
14
15struct kvm_cpu_context;
16
17#ifdef CONFIG_FPU
18void __kvm_riscv_fp_f_save(struct kvm_cpu_context *context);
19void __kvm_riscv_fp_f_restore(struct kvm_cpu_context *context);
20void __kvm_riscv_fp_d_save(struct kvm_cpu_context *context);
21void __kvm_riscv_fp_d_restore(struct kvm_cpu_context *context);
22
23void kvm_riscv_vcpu_fp_reset(struct kvm_vcpu *vcpu);
24void kvm_riscv_vcpu_guest_fp_save(struct kvm_cpu_context *cntx,
25				  const unsigned long *isa);
26void kvm_riscv_vcpu_guest_fp_restore(struct kvm_cpu_context *cntx,
27				     const unsigned long *isa);
28void kvm_riscv_vcpu_host_fp_save(struct kvm_cpu_context *cntx);
29void kvm_riscv_vcpu_host_fp_restore(struct kvm_cpu_context *cntx);
30#else
31static inline void kvm_riscv_vcpu_fp_reset(struct kvm_vcpu *vcpu)
32{
33}
34static inline void kvm_riscv_vcpu_guest_fp_save(struct kvm_cpu_context *cntx,
35						const unsigned long *isa)
36{
37}
38static inline void kvm_riscv_vcpu_guest_fp_restore(
39					struct kvm_cpu_context *cntx,
40					const unsigned long *isa)
41{
42}
43static inline void kvm_riscv_vcpu_host_fp_save(struct kvm_cpu_context *cntx)
44{
45}
46static inline void kvm_riscv_vcpu_host_fp_restore(
47					struct kvm_cpu_context *cntx)
48{
49}
50#endif
51
52int kvm_riscv_vcpu_get_reg_fp(struct kvm_vcpu *vcpu,
53			      const struct kvm_one_reg *reg,
54			      unsigned long rtype);
55int kvm_riscv_vcpu_set_reg_fp(struct kvm_vcpu *vcpu,
56			      const struct kvm_one_reg *reg,
57			      unsigned long rtype);
58
59#endif