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Commit f3532028 authored by Alexander Graf's avatar Alexander Graf
Browse files

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: default avatarNello Martuscielli <ppc.addon@gmail.com>
Tested-by: default avatarNello Martuscielli <ppc.addon@gmail.com>
Signed-off-by: default avatarAlexander Graf <agraf@suse.de>
parent 20f7462a

arch/powerpc/kvm/book3s_emulate.c

+2 −0
Original line number Diff line number Diff line
@@ -458,6 +458,7 @@ int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val) 
	case SPRN_PMC4_GEKKO:

	case SPRN_WPAR_GEKKO:

	case SPRN_MSSSR0:

	case SPRN_DABR:

		break;

unprivileged:

	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_WPAR_GEKKO:

	case SPRN_MSSSR0:

	case SPRN_DABR:

		*spr_val = 0;

		break;

	default: