KVM: VMX: Add module parameter and emulation flag.

The patch adds the module parameter required to enable emulating invalid
guest state, as well as the emulation_required flag used to drive
emulation whenever needed.

Signed-off-by: Mohammed Gamal <m.gamal005@gmail.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index e889b768c751..7c5f611e1a94 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -49,6 +49,9 @@ module_param(flexpriority_enabled, bool, 0);
 static int enable_ept = 1;
 module_param(enable_ept, bool, 0);
 
+static int emulate_invalid_guest_state = 0;
+module_param(emulate_invalid_guest_state, bool, 0);
+
 struct vmcs {
         u32 revision_id;
         u32 abort;
@@ -86,6 +89,7 @@ struct vcpu_vmx {
                 } irq;
         } rmode;
         int vpid;
+        bool emulation_required;
 };
 
 static inline struct vcpu_vmx *to_vmx(struct kvm_vcpu *vcpu)