KVM: PPC: 440: Implement mtdcrx
We need mtdcrx to execute properly on 460 cores. Signed-off-by: Alexander Graf <agraf@suse.de>
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@ -28,11 +28,29 @@
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#include "44x_tlb.h"
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#define XOP_MFDCR 323
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#define XOP_MTDCRX 387
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#define XOP_MTDCR 451
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#define XOP_TLBSX 914
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#define XOP_ICCCI 966
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#define XOP_TLBWE 978
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static int emulate_mtdcr(struct kvm_vcpu *vcpu, int rs, int dcrn)
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{
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/* emulate some access in kernel */
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switch (dcrn) {
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case DCRN_CPR0_CONFIG_ADDR:
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vcpu->arch.cpr0_cfgaddr = kvmppc_get_gpr(vcpu, rs);
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return EMULATE_DONE;
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default:
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vcpu->run->dcr.dcrn = dcrn;
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vcpu->run->dcr.data = kvmppc_get_gpr(vcpu, rs);
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vcpu->run->dcr.is_write = 1;
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vcpu->arch.dcr_needed = 1;
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kvmppc_account_exit(vcpu, DCR_EXITS);
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return EMULATE_DO_DCR;
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}
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}
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int kvmppc_core_emulate_op(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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@ -85,20 +103,12 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
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break;
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case XOP_MTDCR:
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/* emulate some access in kernel */
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switch (dcrn) {
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case DCRN_CPR0_CONFIG_ADDR:
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vcpu->arch.cpr0_cfgaddr = kvmppc_get_gpr(vcpu, rs);
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break;
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default:
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run->dcr.dcrn = dcrn;
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run->dcr.data = kvmppc_get_gpr(vcpu, rs);
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run->dcr.is_write = 1;
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vcpu->arch.dcr_needed = 1;
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kvmppc_account_exit(vcpu, DCR_EXITS);
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emulated = EMULATE_DO_DCR;
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}
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emulated = emulate_mtdcr(vcpu, rs, dcrn);
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break;
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case XOP_MTDCRX:
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emulated = emulate_mtdcr(vcpu, rs,
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kvmppc_get_gpr(vcpu, ra));
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break;
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case XOP_TLBWE:
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