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KVM: PPC: Book3S: Ignore DABR register 

We don't emulate breakpoints yet, so just ignore reads and writes
to / from DABR.

This fixes booting of more recent Linux guest kernels for me.

Reported-by: Nello Martuscielli <ppc.addon@gmail.com>
Tested-by: Nello Martuscielli <ppc.addon@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Alexander Graf 2013-07-02 16:15:10 +02:00
parent 20f7462aac
commit f35320288c
1 changed files with 2 additions and 0 deletions
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2
arch/powerpc/kvm/book3s_emulate.c
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@ -458,6 +458,7 @@ int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val)
case SPRN_PMC4_GEKKO: case SPRN_PMC4_GEKKO:
case SPRN_WPAR_GEKKO: case SPRN_WPAR_GEKKO:
case SPRN_MSSSR0: case SPRN_MSSSR0:
case SPRN_DABR:
break; break;
unprivileged: unprivileged:
default: default:
@ -555,6 +556,7 @@ int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val)
case SPRN_PMC4_GEKKO: case SPRN_PMC4_GEKKO:
case SPRN_WPAR_GEKKO: case SPRN_WPAR_GEKKO:
case SPRN_MSSSR0: case SPRN_MSSSR0:
case SPRN_DABR:
*spr_val = 0; *spr_val = 0;
break; break;
default: default: