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authorAlexander Graf <agraf@suse.de>2011-08-08 17:22:59 +0200
committerAvi Kivity <avi@redhat.com>2011-09-25 19:52:25 +0300
commitaacf9aa3a7762a878c40fddef6e68262b9f9f383 (patch)
tree85fbc4b9348a5a6eedda6905557954aa2cf3abd0 /arch/powerpc/kvm
parent0254f0742998dc61fcf68a3488e2d93636031263 (diff)
downloadblackbird-op-linux-aacf9aa3a7762a878c40fddef6e68262b9f9f383.tar.gz
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KVM: PPC: Stub emulate CFAR and PURR SPRs
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>
Diffstat (limited to 'arch/powerpc/kvm')
-rw-r--r--arch/powerpc/kvm/book3s_emulate.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/book3s_emulate.c b/arch/powerpc/kvm/book3s_emulate.c
index bf0ddcd98bcc..0c9dc62532d0 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:
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