From f35320288c5306ddbcb5ecac046b73519837299c Mon Sep 17 00:00:00 2001 From: Alexander Graf Date: Tue, 2 Jul 2013 16:15:10 +0200 Subject: [PATCH] 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 Tested-by: Nello Martuscielli Signed-off-by: Alexander Graf --- arch/powerpc/kvm/book3s_emulate.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/powerpc/kvm/book3s_emulate.c b/arch/powerpc/kvm/book3s_emulate.c index 1f6344c4408d..360ce68c9809 100644 --- a/arch/powerpc/kvm/book3s_emulate.c +++ b/arch/powerpc/kvm/book3s_emulate.c @@ -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: -- 2.39.5