kvm/ppc/booke64: Fix lazy ee handling in kvmppc_handle_exit()
EE is hard-disabled on entry to kvmppc_handle_exit(), so call
hard_irq_disable() so that PACA_IRQ_HARD_DIS is set, and soft_enabled
is unset.
Without this, we get warnings such as arch/powerpc/kernel/time.c:300,
and sometimes host kernel hangs.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index ecbe908..5cd7ad0 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -834,6 +834,17 @@
int s;
int idx;
+#ifdef CONFIG_PPC64
+ WARN_ON(local_paca->irq_happened != 0);
+#endif
+
+ /*
+ * We enter with interrupts disabled in hardware, but
+ * we need to call hard_irq_disable anyway to ensure that
+ * the software state is kept in sync.
+ */
+ hard_irq_disable();
+
/* update before a new last_exit_type is rewritten */
kvmppc_update_timing_stats(vcpu);