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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>
This commit is contained in:
Jan Dakinevich 2016-10-28 07:00:30 +03:00 committed by Paolo Bonzini
parent 1dc35dacc1
commit 16c2aec6a2
1 changed files with 10 additions and 0 deletions
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arch/x86/kvm/vmx.c
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@ -138,6 +138,16 @@ module_param_named(preemption_timer, enable_preemption_timer, bool, S_IRUGO);
VMX_VPID_EXTENT_GLOBAL_CONTEXT_BIT | \
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