KVM: nVMX: invvpid handling improvements

 - Expose all invalidation types to the L1

 - Reject invvpid instruction, if L1 passed zero vpid value to single
   context invalidations

Signed-off-by: Jan Dakinevich <jan.dakinevich@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 7280a35..25d4838 100644 (file)
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -139,6 +139,16 @@ module_param_named(preemption_timer, enable_preemption_timer, bool, S_IRUGO);
        VMX_VPID_EXTENT_SINGLE_NON_GLOBAL_BIT)
 
 /*
+ * Hyper-V requires all of these, so mark them as supported even though
+ * they are just treated the same as all-context.
+ */
+#define VMX_VPID_EXTENT_SUPPORTED_MASK         \
+       (VMX_VPID_EXTENT_INDIVIDUAL_ADDR_BIT |  \
+       VMX_VPID_EXTENT_SINGLE_CONTEXT_BIT |    \
+       VMX_VPID_EXTENT_GLOBAL_CONTEXT_BIT |    \
+       VMX_VPID_EXTENT_SINGLE_NON_GLOBAL_BIT)
+
+/*
  * These 2 parameters are used to config the controls for Pause-Loop Exiting:
  * ple_gap:    upper bound on the amount of time between two successive
  *             executions of PAUSE in a loop. Also indicate if ple enabled.