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

   1/*
   2 * This program is free software; you can redistribute it and/or modify
   3 * it under the terms of the GNU General Public License, version 2, as
   4 * published by the Free Software Foundation.
   5 *
   6 * This program is distributed in the hope that it will be useful,
   7 * but WITHOUT ANY WARRANTY; without even the implied warranty of
   8 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   9 * GNU General Public License for more details.
  10 *
  11 * You should have received a copy of the GNU General Public License
  12 * along with this program; if not, write to the Free Software
  13 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  14 *
  15 * Copyright SUSE Linux Products GmbH 2010
  16 *
  17 * Authors: Alexander Graf <agraf@suse.de>
  18 */
  19
  20#ifndef __ASM_KVM_BOOKE_H__
  21#define __ASM_KVM_BOOKE_H__
  22
  23#include <linux/types.h>
  24#include <linux/kvm_host.h>
  25
  26/* LPIDs we support with this build -- runtime limit may be lower */
  27#define KVMPPC_NR_LPIDS                        64
  28
  29#define KVMPPC_INST_EHPRIV              0x7c00021c
  30#define EHPRIV_OC_SHIFT                 11
  31/* "ehpriv 1" : ehpriv with OC = 1 is used for debug emulation */
  32#define EHPRIV_OC_DEBUG                 1
  33#define KVMPPC_INST_EHPRIV_DEBUG        (KVMPPC_INST_EHPRIV | \
  34                                         (EHPRIV_OC_DEBUG << EHPRIV_OC_SHIFT))
  35
  36static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
  37{
  38        vcpu->arch.gpr[num] = val;
  39}
  40
  41static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
  42{
  43        return vcpu->arch.gpr[num];
  44}
  45
  46static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
  47{
  48        vcpu->arch.cr = val;
  49}
  50
  51static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
  52{
  53        return vcpu->arch.cr;
  54}
  55
  56static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val)
  57{
  58        vcpu->arch.xer = val;
  59}
  60
  61static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu)
  62{
  63        return vcpu->arch.xer;
  64}
  65
  66static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu)
  67{
  68        /* XXX Would need to check TLB entry */
  69        return false;
  70}
  71
  72static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
  73{
  74        vcpu->arch.ctr = val;
  75}
  76
  77static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
  78{
  79        return vcpu->arch.ctr;
  80}
  81
  82static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
  83{
  84        vcpu->arch.lr = val;
  85}
  86
  87static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
  88{
  89        return vcpu->arch.lr;
  90}
  91
  92static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
  93{
  94        vcpu->arch.pc = val;
  95}
  96
  97static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
  98{
  99        return vcpu->arch.pc;
 100}
 101
 102static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
 103{
 104        return vcpu->arch.fault_dear;
 105}
 106
 107static inline bool kvmppc_supports_magic_page(struct kvm_vcpu *vcpu)
 108{
 109        /* Magic page is only supported on e500v2 */
 110#ifdef CONFIG_KVM_E500V2
 111        return true;
 112#else
 113        return false;
 114#endif
 115}
 116#endif /* __ASM_KVM_BOOKE_H__ */
 117