arch/riscv/include/asm/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
  15 struct kvm_cpu_context;
  16
  17 #ifdef CONFIG_FPU
  18 void __kvm_riscv_fp_f_save(struct kvm_cpu_context *context);
  19 void __kvm_riscv_fp_f_restore(struct kvm_cpu_context *context);
  20 void __kvm_riscv_fp_d_save(struct kvm_cpu_context *context);
  21 void __kvm_riscv_fp_d_restore(struct kvm_cpu_context *context);
  22
  23 void kvm_riscv_vcpu_fp_reset(struct kvm_vcpu *vcpu);
  24 void kvm_riscv_vcpu_guest_fp_save(struct kvm_cpu_context *cntx,
  25                                   unsigned long isa);
  26 void kvm_riscv_vcpu_guest_fp_restore(struct kvm_cpu_context *cntx,
  27                                      unsigned long isa);
  28 void kvm_riscv_vcpu_host_fp_save(struct kvm_cpu_context *cntx);
  29 void kvm_riscv_vcpu_host_fp_restore(struct kvm_cpu_context *cntx);
  30 #else
  31 static inline void kvm_riscv_vcpu_fp_reset(struct kvm_vcpu *vcpu)
  32 {
  33 }
  34 static inline void kvm_riscv_vcpu_guest_fp_save(struct kvm_cpu_context *cntx,
  35                                                 unsigned long isa)
  36 {
  37 }
  38 static inline void kvm_riscv_vcpu_guest_fp_restore(
  39                                         struct kvm_cpu_context *cntx,
  40                                         unsigned long isa)
  41 {
  42 }
  43 static inline void kvm_riscv_vcpu_host_fp_save(struct kvm_cpu_context *cntx)
  44 {
  45 }
  46 static inline void kvm_riscv_vcpu_host_fp_restore(
  47                                         struct kvm_cpu_context *cntx)
  48 {
  49 }
  50 #endif
  51
  52 int kvm_riscv_vcpu_get_reg_fp(struct kvm_vcpu *vcpu,
  53                               const struct kvm_one_reg *reg,
  54                               unsigned long rtype);
  55 int kvm_riscv_vcpu_set_reg_fp(struct kvm_vcpu *vcpu,
  56                               const struct kvm_one_reg *reg,
  57                               unsigned long rtype);
  58
  59 #endif