[PATCH 08/14] KVM: PPC: Stub emulate CFAR and PURR SPRs

Alexander Graf
2011-08-25T14:39:47Z

Recent Linux versions use the CFAR and PURR SPRs, but don't really care about
their contents (yet). So for now, we can simply return 0 when the guest wants
to read them.

Signed-off-by: Alexander Graf <agraf@suse.de>
---
arch/powerpc/kvm/book3s_emulate.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/arch/powerpc/kvm/book3s_emulate.c b/arch/powerpc/kvm/book3s_emulate.c
index bf0ddcd..0c9dc62 100644
--- a/arch/powerpc/kvm/book3s_emulate.c
+++ b/arch/powerpc/kvm/book3s_emulate.c
@@ -473,6 +473,10 @@ int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
case SPRN_HID5:
kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->hid[5]);
break;
+ case SPRN_CFAR:
+ case SPRN_PURR:
+ kvmppc_set_gpr(vcpu, rt, 0);
+ break;
case SPRN_GQR0:
case SPRN_GQR1:
case SPRN_GQR2:
--
1.6.0.2