Sean Christopherson b17b7436f2 KVM: VMX: Skip GUEST_CR3 VMREAD+VMWRITE if the VMCS is up-to-date ... Skip the VMWRITE to update GUEST_CR3 if CR3 is not available, i.e. has not been read from the VMCS since the last VM-Enter. If vcpu->arch.cr3 is stale, kvm_read_cr3(vcpu) will refresh vcpu->arch.cr3 from the VMCS, meaning KVM will do a VMREAD and then VMWRITE the value it just pulled from the VMCS. Note, this is a purely theoretical change, no instances of skipping the VMREAD+VMWRITE have been observed with this change. Tested-by: Reto Buerki <reet@codelabs.ch> Tested-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2019-10-22 13:34:10 +02:00
..
capabilities.h	KVM: x86: Add support for user wait instructions	2019-09-24 14:34:20 +02:00
evmcs.c	x86/kvm/nVMX: fix VMCLEAR when Enlightened VMCS is in use	2019-07-02 18:56:00 +02:00
evmcs.h	KVM/Hyper-V/VMX: Add direct tlb flush support	2019-09-24 13:37:14 +02:00
nested.c	KVM: nVMX: Always write vmcs02.GUEST_CR3 during nested VM-Enter	2019-10-22 13:34:07 +02:00
nested.h	KVM: nVMX: Use descriptive names for VMCS sync functions and flags	2019-06-18 11:46:06 +02:00
ops.h	KVM: VMX: Add error handling to VMREAD helper	2019-09-25 15:30:09 +02:00
pmu_intel.c	kvm: vmx: Limit guest PMCs to those supported on the host	2019-10-01 15:15:06 +02:00
vmcs12.c
vmcs12.h	KVM/arm updates for 5.3	2019-07-11 15:14:16 +02:00
vmcs_shadow_fields.h	KVM: nVMX: shadow pin based execution controls	2019-06-18 17:10:50 +02:00
vmcs.h	KVM: VMX: Leave preemption timer running when it's disabled	2019-06-18 17:10:46 +02:00
vmenter.S	KVM: VMX: Fix and tweak the comments for VM-Enter	2019-08-22 10:09:27 +02:00
vmx.c	KVM: VMX: Skip GUEST_CR3 VMREAD+VMWRITE if the VMCS is up-to-date	2019-10-22 13:34:10 +02:00
vmx.h	KVM: vmx: Emulate MSR IA32_UMWAIT_CONTROL	2019-09-24 14:34:36 +02:00