arch/powerpc/include/asm/kvm_booke.h

   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 /*
  27  * Number of available lpids. Only the low-order 6 bits of LPID rgister are
  28  * implemented on e500mc+ cores.
  29  */
  30 #define KVMPPC_NR_LPIDS                        64
  31
  32 #define KVMPPC_INST_EHPRIV              0x7c00021c
  33 #define EHPRIV_OC_SHIFT                 11
  34 /* "ehpriv 1" : ehpriv with OC = 1 is used for debug emulation */
  35 #define EHPRIV_OC_DEBUG                 1
  36
  37 static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
  38 {
  39         vcpu->arch.gpr[num] = val;
  40 }
  41
  42 static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
  43 {
  44         return vcpu->arch.gpr[num];
  45 }
  46
  47 static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
  48 {
  49         vcpu->arch.cr = val;
  50 }
  51
  52 static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
  53 {
  54         return vcpu->arch.cr;
  55 }
  56
  57 static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, ulong val)
  58 {
  59         vcpu->arch.xer = val;
  60 }
  61
  62 static inline ulong kvmppc_get_xer(struct kvm_vcpu *vcpu)
  63 {
  64         return vcpu->arch.xer;
  65 }
  66
  67 static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu)
  68 {
  69         /* XXX Would need to check TLB entry */
  70         return false;
  71 }
  72
  73 static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
  74 {
  75         vcpu->arch.ctr = val;
  76 }
  77
  78 static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
  79 {
  80         return vcpu->arch.ctr;
  81 }
  82
  83 static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
  84 {
  85         vcpu->arch.lr = val;
  86 }
  87
  88 static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
  89 {
  90         return vcpu->arch.lr;
  91 }
  92
  93 static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
  94 {
  95         vcpu->arch.pc = val;
  96 }
  97
  98 static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
  99 {
 100         return vcpu->arch.pc;
 101 }
 102
 103 static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
 104 {
 105         return vcpu->arch.fault_dear;
 106 }
 107
 108 static inline bool kvmppc_supports_magic_page(struct kvm_vcpu *vcpu)
 109 {
 110         /* Magic page is only supported on e500v2 */
 111 #ifdef CONFIG_KVM_E500V2
 112         return true;
 113 #else
 114         return false;
 115 #endif
 116 }
 117 #endif /* __ASM_KVM_BOOKE_H__ */