forked from mirrors/linux
fd0944baad
When the 'regs' field was added to struct kvm_vcpu_arch, the code was changed to use several of the fields inside regs (e.g., gpr, lr, etc.) but not the ccr field, because the ccr field in struct pt_regs is 64 bits on 64-bit platforms, but the cr field in kvm_vcpu_arch is only 32 bits. This changes the code to use the regs.ccr field instead of cr, and changes the assembly code on 64-bit platforms to use 64-bit loads and stores instead of 32-bit ones. Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@ozlabs.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
117 lines
2.7 KiB
C
117 lines
2.7 KiB
C
/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License, version 2, as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Copyright SUSE Linux Products GmbH 2010
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*
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* Authors: Alexander Graf <agraf@suse.de>
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*/
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#ifndef __ASM_KVM_BOOKE_H__
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#define __ASM_KVM_BOOKE_H__
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#include <linux/types.h>
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#include <linux/kvm_host.h>
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/*
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* Number of available lpids. Only the low-order 6 bits of LPID rgister are
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* implemented on e500mc+ cores.
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*/
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#define KVMPPC_NR_LPIDS 64
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#define KVMPPC_INST_EHPRIV 0x7c00021c
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#define EHPRIV_OC_SHIFT 11
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/* "ehpriv 1" : ehpriv with OC = 1 is used for debug emulation */
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#define EHPRIV_OC_DEBUG 1
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static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
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{
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vcpu->arch.regs.gpr[num] = val;
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}
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static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
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{
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return vcpu->arch.regs.gpr[num];
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}
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static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
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{
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vcpu->arch.regs.ccr = val;
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}
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static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
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{
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return vcpu->arch.regs.ccr;
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}
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static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, ulong val)
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{
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vcpu->arch.regs.xer = val;
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}
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static inline ulong kvmppc_get_xer(struct kvm_vcpu *vcpu)
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{
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return vcpu->arch.regs.xer;
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}
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static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu)
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{
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/* XXX Would need to check TLB entry */
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return false;
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}
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static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
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{
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vcpu->arch.regs.ctr = val;
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}
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static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
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{
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return vcpu->arch.regs.ctr;
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}
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static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
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{
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vcpu->arch.regs.link = val;
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}
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static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
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{
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return vcpu->arch.regs.link;
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}
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static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
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{
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vcpu->arch.regs.nip = val;
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}
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static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
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{
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return vcpu->arch.regs.nip;
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}
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static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
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{
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return vcpu->arch.fault_dear;
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}
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static inline bool kvmppc_supports_magic_page(struct kvm_vcpu *vcpu)
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{
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/* Magic page is only supported on e500v2 */
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#ifdef CONFIG_KVM_E500V2
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return true;
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#else
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return false;
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#endif
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}
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#endif /* __ASM_KVM_BOOKE_H__ */
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