3.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alexander Graf <[email protected]>

commit e43a028752fed049e4bd94ef895542f96d79fa74 upstream.

When remembering the direction of a DCR transaction, we should write
to the same variable that we interpret on later when doing vcpu_run
again.

Signed-off-by: Alexander Graf <[email protected]>
Signed-off-by: CAI Qian <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

---
 arch/powerpc/kvm/44x_emulate.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/arch/powerpc/kvm/44x_emulate.c
+++ b/arch/powerpc/kvm/44x_emulate.c
@@ -79,6 +79,7 @@ int kvmppc_core_emulate_op(struct kvm_ru
                                run->dcr.dcrn = dcrn;
                                run->dcr.data =  0;
                                run->dcr.is_write = 0;
+                               vcpu->arch.dcr_is_write = 0;
                                vcpu->arch.io_gpr = rt;
                                vcpu->arch.dcr_needed = 1;
                                kvmppc_account_exit(vcpu, DCR_EXITS);
@@ -100,6 +101,7 @@ int kvmppc_core_emulate_op(struct kvm_ru
                                run->dcr.dcrn = dcrn;
                                run->dcr.data = kvmppc_get_gpr(vcpu, rs);
                                run->dcr.is_write = 1;
+                               vcpu->arch.dcr_is_write = 1;
                                vcpu->arch.dcr_needed = 1;
                                kvmppc_account_exit(vcpu, DCR_EXITS);
                                emulated = EMULATE_DO_DCR;


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