Do not stop VM if emulation failed in userspace.

Continue vcpu execution in case emulation failure happened while vcpu
was in userspace. In this case #UD will be injected into the guest
allowing guest OS to kill offending process and continue.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
diff --git a/target-ppc/kvm.c b/target-ppc/kvm.c
index 91c0963..2625cb8 100644
--- a/target-ppc/kvm.c
+++ b/target-ppc/kvm.c
@@ -326,3 +326,8 @@
     retval = atoi(ns);
     return retval;
 }
+
+bool kvm_arch_stop_on_emulation_error(CPUState *env)
+{
+    return true;
+}