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KVM: PPC: Book3S PR: Add new kvmppc_copyto/from_vcpu_tm APIs
This patch adds 2 new APIs: kvmppc_copyto_vcpu_tm() and kvmppc_copyfrom_vcpu_tm(). These 2 APIs will be used to copy from/to TM data between VCPU_TM/VCPU area. PR KVM will use these APIs for treclaim. or trechkpt. emulation. Signed-off-by: Simon Guo <wei.guo.simon@gmail.com> Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
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@ -87,6 +87,47 @@ static bool spr_allowed(struct kvm_vcpu *vcpu, enum priv_level level)
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return true;
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}
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#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
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static inline void kvmppc_copyto_vcpu_tm(struct kvm_vcpu *vcpu)
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{
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memcpy(&vcpu->arch.gpr_tm[0], &vcpu->arch.regs.gpr[0],
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sizeof(vcpu->arch.gpr_tm));
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memcpy(&vcpu->arch.fp_tm, &vcpu->arch.fp,
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sizeof(struct thread_fp_state));
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memcpy(&vcpu->arch.vr_tm, &vcpu->arch.vr,
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sizeof(struct thread_vr_state));
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vcpu->arch.ppr_tm = vcpu->arch.ppr;
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vcpu->arch.dscr_tm = vcpu->arch.dscr;
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vcpu->arch.amr_tm = vcpu->arch.amr;
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vcpu->arch.ctr_tm = vcpu->arch.regs.ctr;
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vcpu->arch.tar_tm = vcpu->arch.tar;
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vcpu->arch.lr_tm = vcpu->arch.regs.link;
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vcpu->arch.cr_tm = vcpu->arch.cr;
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vcpu->arch.xer_tm = vcpu->arch.regs.xer;
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vcpu->arch.vrsave_tm = vcpu->arch.vrsave;
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}
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static inline void kvmppc_copyfrom_vcpu_tm(struct kvm_vcpu *vcpu)
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{
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memcpy(&vcpu->arch.regs.gpr[0], &vcpu->arch.gpr_tm[0],
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sizeof(vcpu->arch.regs.gpr));
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memcpy(&vcpu->arch.fp, &vcpu->arch.fp_tm,
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sizeof(struct thread_fp_state));
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memcpy(&vcpu->arch.vr, &vcpu->arch.vr_tm,
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sizeof(struct thread_vr_state));
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vcpu->arch.ppr = vcpu->arch.ppr_tm;
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vcpu->arch.dscr = vcpu->arch.dscr_tm;
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vcpu->arch.amr = vcpu->arch.amr_tm;
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vcpu->arch.regs.ctr = vcpu->arch.ctr_tm;
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vcpu->arch.tar = vcpu->arch.tar_tm;
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vcpu->arch.regs.link = vcpu->arch.lr_tm;
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vcpu->arch.cr = vcpu->arch.cr_tm;
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vcpu->arch.regs.xer = vcpu->arch.xer_tm;
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vcpu->arch.vrsave = vcpu->arch.vrsave_tm;
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}
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#endif
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int kvmppc_core_emulate_op_pr(struct kvm_run *run, struct kvm_vcpu *vcpu,
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unsigned int inst, int *advance)
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{
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