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KVM: PPC: BookE: Emulate mfspr on EPR
author
Alexander Graf
<agraf@suse.de>
Fri, 4 Jan 2013 17:02:14 +0000
(18:02 +0100)
committer
Alexander Graf
<agraf@suse.de>
Thu, 10 Jan 2013 12:42:30 +0000
(13:42 +0100)
The EPR register is potentially valid for PR KVM as well, so we need
to emulate accesses to it. It's only defined for reading, so only
handle the mfspr case.
Signed-off-by: Alexander Graf <agraf@suse.de>
arch/powerpc/kvm/booke_emulate.c
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diff --git
a/arch/powerpc/kvm/booke_emulate.c
b/arch/powerpc/kvm/booke_emulate.c
index
4685b8c
..
27a4b28
100644
(file)
--- a/
arch/powerpc/kvm/booke_emulate.c
+++ b/
arch/powerpc/kvm/booke_emulate.c
@@
-269,6
+269,9
@@
int kvmppc_booke_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val)
case SPRN_ESR:
*spr_val = vcpu->arch.shared->esr;
break;
+ case SPRN_EPR:
+ *spr_val = vcpu->arch.epr;
+ break;
case SPRN_CSRR0:
*spr_val = vcpu->arch.csrr0;
break;