[PATCH] never re-execute instruction with enabled tdp

Gleb Natapov
2010-07-14T16:05:46Z

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>
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index fb08316..86c8102 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
--
Gleb.