From 68be0803456b3eed33038be5566710ad7648c854 Mon Sep 17 00:00:00 2001
From: Gleb Natapov <gleb@redhat.com>
Date: Wed, 14 Jul 2010 19:05:45 +0300
Subject: [PATCH] KVM: x86: never re-execute instruction with enabled tdp
With tdp enabled we should get into emulator only when emulating io, so
reexecution will always bring us back into emulator.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
---
arch/x86/kvm/x86.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index eb55ec55125c2..689c2c3182ab1 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3936,6 +3936,9 @@ static bool reexecute_instruction(struct kvm_vcpu *vcpu, gva_t gva)
{
gpa_t gpa;
+ if (tdp_enabled)
+ return false;
+
/*
* if emulation was due to access to shadowed page table
* and it failed try to unshadow page and re-entetr the
--
2.30.2