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Commit 7310f3a5 authored by Aneesh Kumar K.V's avatar Aneesh Kumar K.V Committed by Alexander Graf
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KVM: PPC: BOOK3S: Always use the saved DAR value 



Although it's optional, IBM POWER cpus always had DAR value set on
alignment interrupt. So don't try to compute these values.

Signed-off-by: default avatarAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: default avatarAlexander Graf <agraf@suse.de>
parent 5c165aec

arch/powerpc/kvm/book3s_emulate.c

+7 −0
Original line number Diff line number Diff line
@@ -676,6 +676,12 @@ u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst) 


ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst)

{

#ifdef CONFIG_PPC_BOOK3S_64

	/*

	 * Linux's fix_alignment() assumes that DAR is valid, so can we

	 */

	return vcpu->arch.fault_dar;

#else

	ulong dar = 0;

	ulong ra = get_ra(inst);

	ulong rb = get_rb(inst);
@@ -700,4 +706,5 @@ ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst) 
	}



	return dar;

#endif

}