LXR linux/arch/powerpc/include/asm/kvm

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 *
   4 * Copyright SUSE Linux Products GmbH 2010
   5 *
   6 * Authors: Alexander Graf <agraf@suse.de>
   7 */
   8
   9#ifndef __ASM_KVM_BOOKE_H__
  10#define __ASM_KVM_BOOKE_H__
  11
  12#include <linux/types.h>
  13#include <linux/kvm_host.h>
  14
  15/*
  16 * Number of available lpids. Only the low-order 6 bits of LPID rgister are
  17 * implemented on e500mc+ cores.
  18 */
  19#define KVMPPC_NR_LPIDS                        64
  20
  21#define KVMPPC_INST_EHPRIV              0x7c00021c
  22#define EHPRIV_OC_SHIFT                 11
  23/* "ehpriv 1" : ehpriv with OC = 1 is used for debug emulation */
  24#define EHPRIV_OC_DEBUG                 1
  25
  26static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
  27{
  28        vcpu->arch.regs.gpr[num] = val;
  29}
  30
  31static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
  32{
  33        return vcpu->arch.regs.gpr[num];
  34}
  35
  36static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
  37{
  38        vcpu->arch.regs.ccr = val;
  39}
  40
  41static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
  42{
  43        return vcpu->arch.regs.ccr;
  44}
  45
  46static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, ulong val)
  47{
  48        vcpu->arch.regs.xer = val;
  49}
  50
  51static inline ulong kvmppc_get_xer(struct kvm_vcpu *vcpu)
  52{
  53        return vcpu->arch.regs.xer;
  54}
  55
  56static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu)
  57{
  58        /* XXX Would need to check TLB entry */
  59        return false;
  60}
  61
  62static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
  63{
  64        vcpu->arch.regs.ctr = val;
  65}
  66
  67static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
  68{
  69        return vcpu->arch.regs.ctr;
  70}
  71
  72static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
  73{
  74        vcpu->arch.regs.link = val;
  75}
  76
  77static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
  78{
  79        return vcpu->arch.regs.link;
  80}
  81
  82static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
  83{
  84        vcpu->arch.regs.nip = val;
  85}
  86
  87static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
  88{
  89        return vcpu->arch.regs.nip;
  90}
  91
  92static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
  93{
  94        return vcpu->arch.fault_dear;
  95}
  96
  97static inline bool kvmppc_supports_magic_page(struct kvm_vcpu *vcpu)
  98{
  99        /* Magic page is only supported on e500v2 */
 100#ifdef CONFIG_KVM_E500V2
 101        return true;
 102#else
 103        return false;
 104#endif
 105}
 106#endif /* __ASM_KVM_BOOKE_H__ */
 107