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kernel/linux-rt-4.4.41/arch/powerpc/include/asm/kvm_booke.h 2.68 KB
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  /*
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License, version 2, as
   * published by the Free Software Foundation.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software
   * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
   *
   * Copyright SUSE Linux Products GmbH 2010
   *
   * Authors: Alexander Graf <agraf@suse.de>
   */
  
  #ifndef __ASM_KVM_BOOKE_H__
  #define __ASM_KVM_BOOKE_H__
  
  #include <linux/types.h>
  #include <linux/kvm_host.h>
  
  /*
   * Number of available lpids. Only the low-order 6 bits of LPID rgister are
   * implemented on e500mc+ cores.
   */
  #define KVMPPC_NR_LPIDS                        64
  
  #define KVMPPC_INST_EHPRIV		0x7c00021c
  #define EHPRIV_OC_SHIFT			11
  /* "ehpriv 1" : ehpriv with OC = 1 is used for debug emulation */
  #define EHPRIV_OC_DEBUG			1
  
  static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
  {
  	vcpu->arch.gpr[num] = val;
  }
  
  static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
  {
  	return vcpu->arch.gpr[num];
  }
  
  static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
  {
  	vcpu->arch.cr = val;
  }
  
  static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
  {
  	return vcpu->arch.cr;
  }
  
  static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, ulong val)
  {
  	vcpu->arch.xer = val;
  }
  
  static inline ulong kvmppc_get_xer(struct kvm_vcpu *vcpu)
  {
  	return vcpu->arch.xer;
  }
  
  static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu)
  {
  	/* XXX Would need to check TLB entry */
  	return false;
  }
  
  static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
  {
  	vcpu->arch.ctr = val;
  }
  
  static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
  {
  	return vcpu->arch.ctr;
  }
  
  static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
  {
  	vcpu->arch.lr = val;
  }
  
  static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
  {
  	return vcpu->arch.lr;
  }
  
  static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
  {
  	vcpu->arch.pc = val;
  }
  
  static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
  {
  	return vcpu->arch.pc;
  }
  
  static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
  {
  	return vcpu->arch.fault_dear;
  }
  
  static inline bool kvmppc_supports_magic_page(struct kvm_vcpu *vcpu)
  {
  	/* Magic page is only supported on e500v2 */
  #ifdef CONFIG_KVM_E500V2
  	return true;
  #else
  	return false;
  #endif
  }
  #endif /* __ASM_KVM_BOOKE_H__ */